#23: Create Medication Modal

Reviewed-on: #35
Reviewed-by: SZUT-Ole <ole.kueck@hmmh.de>

src/main/java/de/hitec/nhplus/Main.java

@@ -1,7 +1,6 @@
 package de.hitec.nhplus;
 
 import de.hitec.nhplus.datastorage.ConnectionBuilder;
-
 import javafx.application.Application;
 import javafx.application.Platform;
 import javafx.fxml.FXMLLoader;
@@ -12,18 +11,35 @@ import javafx.stage.Stage;
 import java.io.IOException;
 
 /**
- * @author dominik.saeume@hmmh.ag
+ * The application main class, holding the {@link #main} entrypoint.
+ *
+ * @author Bernd Heidemann
+ * @author Dominik Säume
  */
 public class Main extends Application {
 
     private Stage primaryStage;
+
+    /**
+     * The main entry point.
+     */
+    public static void main(String[] args) {
+        launch(args);
+    }
+
+    /**
+     * Implementation of the JavaFX start hook.
+     */
     @Override
     public void start(Stage primaryStage) {
         this.primaryStage = primaryStage;
-        mainWindow();
+        executeMainApplication();
     }
 
-    public void mainWindow() {
+    /**
+     * Executes the main application.
+     */
+    private void executeMainApplication() {
         try {
             FXMLLoader loader = new FXMLLoader(Main.class.getResource("/de/hitec/nhplus/main/MainWindowView.fxml"));
             TabPane pane = loader.load();
@@ -44,7 +60,4 @@ public class Main extends Application {
         }
     }
 
-    public static void main(String[] args) {
-        launch(args);
-    }
 }

src/main/java/de/hitec/nhplus/datastorage/ConnectionBuilder.java

@@ -7,9 +7,9 @@ import java.sql.DriverManager;
 import java.sql.SQLException;
 
 /**
- * The {@link DaoFactory} allows a safe connection to the Database.
+ * The {@link DaoFactory} allows a safe connection to the database.
  *
- * @author Bernd Heidemann
+ * @author Bernd Heidemannn
  * @author Dominik Säume
  * @version 1.0
  */
@@ -21,7 +21,7 @@ public class ConnectionBuilder {
     private static Connection connection;
 
     /**
-     * @return A Thread-safe {@link Connection} to the Database.
+     * @return A thread-safe {@link Connection} to the database.
      */
     synchronized public static Connection getConnection() {
         try {
@@ -38,7 +38,7 @@ public class ConnectionBuilder {
     }
 
     /**
-     * Closes the Connection to the Database.
+     * Closes the connection to the database.
      */
     synchronized public static void closeConnection() {
         try {

src/main/java/de/hitec/nhplus/datastorage/Dao.java

@@ -4,47 +4,48 @@ import java.sql.SQLException;
 import java.util.List;
 
 /**
- * {@link Dao} is the Abbreviation of Data-Access-Object.
- * This Interface has the Basic Methods which are needed on any {@link Dao} to work as expected.
+ * {@link Dao} is the abbreviation for Data-Access-Object.
+ * This interface has the Basic Methods that are needed on any {@link Dao} to work as expected.
  *
- * @param <T> The Model for which that {@link Dao} is implemented.
- * @author Bernd Heidemann
+ * @param <T> The model for which that {@link Dao} is implemented.
+ * @author Bernd Heidemannn
  * @author Dominik Säume
  * @version 1.0
- * @implSpec The Implementations should be added to the {@link DaoFactory}.
+ * @implSpec The implementations should be added to the {@link DaoFactory}.
  */
 public interface Dao<T> {
 
     /**
-     * Create a Database Entry from a Model object.
+     * Create a database entry from a model object.
      *
-     * @param t The Model instance.
+     * @param t The model instance.
      */
     void create(T t) throws SQLException;
 
     /**
-     * Read a Database Entry to a Model object.
+     * Read a database entry to a model object.
      *
-     * @param id The ID of the Element in the Database.
+     * @param id The ID of the element in the database.
+     * @return a model instance of {@link T}.
      */
     T read(int id) throws SQLException;
 
     /**
-     * @return All Database Entries as a {@link List} of Model instances
+     * @return All database entries as a {@link List} of model instances.
      */
     List<T> readAll() throws SQLException;
 
     /**
-     * Update the Database according to the Values of the Model object.
+     * Update the database according to the values of the model object.
      *
-     * @param t The Model instance.
+     * @param t The model instance.
      */
     void update(T t) throws SQLException;
 
     /**
-     * Delete a Database Entry.
+     * Delete a database entry.
      *
-     * @param id The ID of the Element in the Database.
+     * @param id The ID of the element in the database.
      */
     void delete(int id) throws SQLException;
 }

src/main/java/de/hitec/nhplus/datastorage/DaoFactory.java

@@ -6,9 +6,9 @@ import de.hitec.nhplus.patient.database.PatientDao;
 import de.hitec.nhplus.treatment.database.TreatmentDao;
 
 /**
- * The {@link DaoFactory} is a Singleton({@link #getInstance}) which should be used to get {@link Dao}s.
+ * The {@link DaoFactory} is a singleton({@link #getInstance}) that should be used to get {@link Dao}s.
  *
- * @author Bernd Heidemann
+ * @author Bernd Heidemannn
  * @author Dominik Säume
  * @version 1.0
  */
@@ -17,13 +17,13 @@ public class DaoFactory {
     private static DaoFactory instance;
 
     /**
-     * A Private Constructor according to the Singleton Pattern.
+     * A private constructor according to the singleton pattern.
      */
     private DaoFactory() {
     }
 
     /**
-     * @return The Singleton Instance.
+     * @return The singleton instance of {@link DaoFactory}.
      */
     public static DaoFactory getInstance() {
         if (DaoFactory.instance == null) {
@@ -33,7 +33,7 @@ public class DaoFactory {
     }
 
     /**
-     * @return A new {@link TreatmentDao} Instance with a Database Connection.
+     * @return A new {@link TreatmentDao} instance with a database connection.
      * @see de.hitec.nhplus.treatment.Treatment Treatment
      */
     public TreatmentDao createTreatmentDao() {
@@ -41,7 +41,7 @@ public class DaoFactory {
     }
 
     /**
-     * @return A new {@link PatientDao} Instance with a Database Connection.
+     * @return A new {@link PatientDao} instance with a database connection.
      * @see de.hitec.nhplus.patient.Patient Patient
      */
     public PatientDao createPatientDAO() {
@@ -49,7 +49,7 @@ public class DaoFactory {
     }
 
     /**
-     * @return A new {@link NurseDao} Instance with a Database Connection.
+     * @return A new {@link NurseDao} instance with a database connection.
      * @see de.hitec.nhplus.nurse.Nurse Nurse
      */
     public NurseDao createNurseDAO() {
@@ -57,7 +57,7 @@ public class DaoFactory {
     }
 
     /**
-     * @return A new {@link MedicationDao} Instance with a Database Connection.
+     * @return A new {@link MedicationDao} instance with a database connection.
      * @see de.hitec.nhplus.medication.Medication Medication
      */
     public MedicationDao createMedicationDAO() {

src/main/java/de/hitec/nhplus/datastorage/DaoImp.java

@@ -7,30 +7,30 @@ import java.sql.SQLException;
 import java.util.List;
 
 /**
- * The {@link DaoImp} is a Generic Base Implementation of the {@link Dao},
- * which should fit most use cases.
+ * The {@link DaoImp} is a generic base implementation of the {@link Dao},
+ * that should fit most use cases.
  *
- * @param <T> The Model for which that {@link Dao} is implemented.
- * @author Bernd Heidemann
+ * @param <T> The model for which that {@link Dao} is implemented.
+ * @author Bernd Heidemannn
  * @author Dominik Säume
  * @version 1.0
- * @implSpec The Implementations should be added to the {@link DaoFactory}.
+ * @implSpec The implementations should be added to the {@link DaoFactory}.
  */
 public abstract class DaoImp<T> implements Dao<T> {
     protected final Connection connection;
 
     /**
-     * @param connection The Database Connection to use
-     * @implSpec The Connection should be Received from the {@link ConnectionBuilder}.
+     * @param connection The database {@link Connection} to use.
+     * @implSpec The {@link Connection} should be received from the {@link ConnectionBuilder}.
      */
     public DaoImp(Connection connection) {
         this.connection = connection;
     }
 
     /**
-     * Creates a new Database Entry from a Model object.
+     * Creates a new database entry from a model object.
      *
-     * @param t The Model instance.
+     * @param t The model instance.
      */
     @Override
     public void create(T t) throws SQLException {
@@ -38,9 +38,10 @@ public abstract class DaoImp<T> implements Dao<T> {
     }
 
     /**
-     * Read a Database Entry to a Model object.
+     * Read a database entry to a model object.
      *
-     * @param id The ID of the Element in the Database.
+     * @param id The ID of the element in the database.
+     * @return the model instance of type {@link T}, which was read.
      */
     @Override
     public T read(int id) throws SQLException {
@@ -53,7 +54,9 @@ public abstract class DaoImp<T> implements Dao<T> {
     }
 
     /**
-     * Read all Database Entries to a {@link List} of Model objects.
+     * Read all database entries to a {@link List} of model objects.
+     *
+     * @return a {@link List} of type {@link T} holding all database entries as model instances.
      */
     @Override
     public List<T> readAll() throws SQLException {
@@ -61,9 +64,9 @@ public abstract class DaoImp<T> implements Dao<T> {
     }
 
     /**
-     * Update the Database according to the Values of the Model object.
+     * Update the database according to the values of the model object.
      *
-     * @param t The Model instance.
+     * @param t The model instance.
      */
     @Override
     public void update(T t) throws SQLException {
@@ -71,26 +74,62 @@ public abstract class DaoImp<T> implements Dao<T> {
     }
 
     /**
-     * Delete a Database Entry.
+     * Delete a database entry.
      *
-     * @param id The ID of the Element in the Database.
+     * @param id The ID of the element in the database.
      */
     @Override
     public void delete(int id) throws SQLException {
         getDeleteStatement(id).executeUpdate();
     }
 
+    /**
+     * @param result The {@link ResultSet} from execution of the statement received from {@link #getReadByIDStatement}.
+     * @return The model instance of type {@link T}.
+     * @implSpec This will be called in {@link #read}.
+     */
     protected abstract T getInstanceFromResultSet(ResultSet result) throws SQLException;
 
-    protected abstract List<T> getListFromResultSet(ResultSet result) throws SQLException;
-
-    protected abstract PreparedStatement getCreateStatement(T t) throws SQLException;
-
+    /**
+     * @param id The ID of the database entry to read.
+     * @return A {@link PreparedStatement} to read a specific entry by its ID.
+     * @implSpec This will be called in {@link #read}.
+     * The output of the execution will be used in {@link #getInstanceFromResultSet}.
+     */
     protected abstract PreparedStatement getReadByIDStatement(int id) throws SQLException;
 
+    /**
+     * @param result The {@link ResultSet} from execution of the statement received from {@link #getReadAllStatement}.
+     * @return A {@link List} of type {@link T} holding all database entries as model instances.
+     * @implSpec This will be called in {@link #readAll}.
+     */
+    protected abstract List<T> getListFromResultSet(ResultSet result) throws SQLException;
+
+    /**
+     * @return A {@link PreparedStatement} to read all entries of this model.
+     * @implSpec This will be called in {@link #readAll}.
+     * The output of the execution will be used in {@link #getListFromResultSet}.
+     */
     protected abstract PreparedStatement getReadAllStatement() throws SQLException;
 
+    /**
+     * @param t The model instance of type {@link T} for which an entry should be created.
+     * @return a {@link PreparedStatement} which can be used to create a new database entry for the model instance.
+     * @implSpec This will be called in {@link #create}.
+     */
+    protected abstract PreparedStatement getCreateStatement(T t) throws SQLException;
+
+    /**
+     * @param t The model instance of type {@link T} for which the entry should be updated.
+     * @return a {@link PreparedStatement} which can be used to update the database entry for the model instance.
+     * @implSpec This will be called in {@link #update}.
+     */
     protected abstract PreparedStatement getUpdateStatement(T t) throws SQLException;
 
+    /**
+     * @param id The ID of the database entry which should be deleted.
+     * @return a {@link PreparedStatement} which can be used to delete the database entry.
+     * @implSpec This will be called in {@link #delete}.
+     */
     protected abstract PreparedStatement getDeleteStatement(int id) throws SQLException;
 }

src/main/java/de/hitec/nhplus/fixtures/Fixture.java

@@ -7,36 +7,36 @@ import java.sql.SQLException;
 import java.util.Map;
 
 /**
- * A Fixture is a Class, which can be used to set up a specific set of Data.
+ * A fixture is a class, which can be used to set up a specific set of data.
  *
- * @param <T> The Model for which the {@link Fixture} is implemented.
+ * @param <T> The model for which the {@link Fixture} is implemented.
  * @author Dominik Säume
  * @version 1.0
- * @implSpec The Implementations should be added to the {@link Fixtures#main}.
+ * @implSpec The implementations should be added to the {@link Fixtures#main}.
  */
 public interface Fixture<T> {
 
     /**
-     * Drop all Dependent Tables.
+     * Drop all dependent tables.
      *
-     * @param connection A Database {@link Connection}, which should be received from
+     * @param connection A database {@link Connection}, which should be received from
      *                   the {@link ConnectionBuilder#getConnection}
      * @implSpec Use {@code IF EXISTS}, to ensure that it doesn't throw an {@link Exception}.
      */
     void dropTable(Connection connection) throws SQLException;
 
     /**
-     * Set up the Empty Tables with the Schema.
+     * Set up the empty tables with the schema.
      *
-     * @param connection A Database {@link Connection}, which should be received from
+     * @param connection A database {@link Connection}, which should be received from
      *                   the {@link ConnectionBuilder#getConnection}
      */
     void setupTable(Connection connection) throws SQLException;
 
     /**
-     * Loads all Model specific Data to the Database.
+     * Loads all model specific data to the database.
      *
-     * @return A Map of Models with a {@link String} key, to be used by other {@link Fixture}
+     * @return A map of models with a {@link String} key, to be used by other {@link Fixture}
      * @implSpec The {@link de.hitec.nhplus.datastorage.Dao Dao} should be received
      * from {@link de.hitec.nhplus.datastorage.DaoFactory DaoFactory}.
      */

src/main/java/de/hitec/nhplus/fixtures/Fixtures.java

@@ -1,13 +1,14 @@
 package de.hitec.nhplus.fixtures;
 
 import de.hitec.nhplus.datastorage.ConnectionBuilder;
+import de.hitec.nhplus.nurse.Nurse;
 import de.hitec.nhplus.patient.Patient;
 
 import java.sql.Connection;
 import java.util.Map;
 
 /**
- * A Class, Implementing an Entrypoint({@link #main}), for loading a Specific set of Data.
+ * A class, implementing an entrypoint({@link #main}), for loading a specific set of data.
  *
  * @author Dominik Säume
  * @version 1.0
@@ -15,7 +16,7 @@ import java.util.Map;
 public class Fixtures {
 
     /**
-     * An Entrypoint, for loading a Specific set of Data.
+     * An entrypoint, for loading a specific set of data.
      *
      * @param args unused.
      */
@@ -28,15 +29,17 @@ public class Fixtures {
             patientFixture.setupTable(connection);
             Map<String, Patient> patientsByName = patientFixture.load();
 
-            TreatmentFixture treatmentFixture = new TreatmentFixture(patientsByName);
+            NurseFixture nurseFixture = new NurseFixture();
+            nurseFixture.dropTable(connection);
+            nurseFixture.setupTable(connection);
+            Map<String, Nurse> nursesByName = nurseFixture.load();
+
+
+            TreatmentFixture treatmentFixture = new TreatmentFixture(patientsByName, nursesByName);
             treatmentFixture.dropTable(connection);
             treatmentFixture.setupTable(connection);
             treatmentFixture.load();
 
-            NurseFixture nurseFixture = new NurseFixture();
-            nurseFixture.dropTable(connection);
-            nurseFixture.setupTable(connection);
-            nurseFixture.load();
 
             MedicationFixture medicationFixture = new MedicationFixture();
             medicationFixture.dropTable(connection);

src/main/java/de/hitec/nhplus/fixtures/MedicationFixture.java

@@ -12,7 +12,11 @@ import java.sql.Connection;
 import java.sql.SQLException;
 import java.util.*;
 
-
+/**
+ * {@link Fixture} for {@link Medication}.
+ *
+ * @author Dominik Säume
+ */
 public class MedicationFixture implements Fixture<Medication> {
     private static final String SCHEMA = "/de/hitec/nhplus/medication/database/Medication.sql";
     private static final String INGREDIENT_SCHEMA = "/de/hitec/nhplus/medication/database/Medication_Ingredient.sql";

src/main/java/de/hitec/nhplus/fixtures/NurseFixture.java

@@ -4,6 +4,7 @@ import de.hitec.nhplus.Main;
 import de.hitec.nhplus.datastorage.DaoFactory;
 import de.hitec.nhplus.nurse.Nurse;
 import de.hitec.nhplus.nurse.database.NurseDao;
+import de.hitec.nhplus.treatment.Treatment;
 
 import java.io.InputStream;
 import java.nio.charset.StandardCharsets;
@@ -11,6 +12,11 @@ import java.sql.Connection;
 import java.sql.SQLException;
 import java.util.*;
 
+/**
+ * {@link Fixture} for {@link Nurse}.
+ *
+ * @author Dominik Säume
+ */
 public class NurseFixture implements Fixture<Nurse> {
     @Override
     public void dropTable(Connection connection) throws SQLException {

src/main/java/de/hitec/nhplus/fixtures/PatientFixture.java

@@ -13,6 +13,11 @@ import java.util.*;
 
 import static de.hitec.nhplus.utils.DateConverter.convertStringToLocalDate;
 
+/**
+ * {@link Fixture} for {@link Patient}.
+ *
+ * @author Dominik Säume
+ */
 public class PatientFixture implements Fixture<Patient> {
     @Override
     public void dropTable(Connection connection) throws SQLException {

src/main/java/de/hitec/nhplus/fixtures/TreatmentFixture.java

@@ -2,6 +2,7 @@ package de.hitec.nhplus.fixtures;
 
 import de.hitec.nhplus.Main;
 import de.hitec.nhplus.datastorage.DaoFactory;
+import de.hitec.nhplus.nurse.Nurse;
 import de.hitec.nhplus.patient.Patient;
 import de.hitec.nhplus.treatment.Treatment;
 import de.hitec.nhplus.treatment.database.TreatmentDao;
@@ -15,11 +16,19 @@ import java.util.*;
 import static de.hitec.nhplus.utils.DateConverter.convertStringToLocalDate;
 import static de.hitec.nhplus.utils.DateConverter.convertStringToLocalTime;
 
+
+/**
+ * {@link Fixture} for {@link Treatment}.
+ *
+ * @author Dominik Säume
+ */
 public class TreatmentFixture implements Fixture<Treatment> {
     private final Map<String, Patient> patientsByName;
+    private final Map<String, Nurse> nursesByName;
 
-    public TreatmentFixture(Map<String, Patient> patientsByName) {
+    public TreatmentFixture(Map<String, Patient> patientsByName, Map<String, Nurse> nursesByName) {
         this.patientsByName = patientsByName;
+        this.nursesByName = nursesByName;
     }
 
     @Override
@@ -45,9 +54,13 @@ public class TreatmentFixture implements Fixture<Treatment> {
         Patient ahmet = patientsByName.get("Ahmet");
         Patient elisabeth = patientsByName.get("Elisabeth");
 
+        Nurse ole = nursesByName.get("Ole");
+        Nurse armin = nursesByName.get("Armin");
+
         treatments.add(new Treatment(
                 1,
                 seppl,
+                ole,
                 convertStringToLocalDate("2023-06-03"),
                 convertStringToLocalTime("11:00"),
                 convertStringToLocalTime("15:00"),
@@ -59,6 +72,7 @@ public class TreatmentFixture implements Fixture<Treatment> {
         treatments.add(new Treatment(
                 2,
                 seppl,
+                armin,
                 convertStringToLocalDate("2023-06-05"),
                 convertStringToLocalTime("11:00"),
                 convertStringToLocalTime("12:30"),
@@ -70,6 +84,7 @@ public class TreatmentFixture implements Fixture<Treatment> {
         treatments.add(new Treatment(
                 3,
                 martina,
+                ole,
                 convertStringToLocalDate("2023-06-04"),
                 convertStringToLocalTime("07:30"),
                 convertStringToLocalTime("08:00"),
@@ -79,6 +94,7 @@ public class TreatmentFixture implements Fixture<Treatment> {
         treatments.add(new Treatment(
                 4,
                 seppl,
+                armin,
                 convertStringToLocalDate("2023-06-06"),
                 convertStringToLocalTime("15:10"),
                 convertStringToLocalTime("16:00"),
@@ -88,6 +104,7 @@ public class TreatmentFixture implements Fixture<Treatment> {
         treatments.add(new Treatment(
                 8,
                 seppl,
+                ole,
                 convertStringToLocalDate("2023-06-08"),
                 convertStringToLocalTime("15:00"),
                 convertStringToLocalTime("16:00"),
@@ -97,6 +114,7 @@ public class TreatmentFixture implements Fixture<Treatment> {
         treatments.add(new Treatment(
                 9,
                 martina,
+                armin,
                 convertStringToLocalDate("2023-06-07"),
                 convertStringToLocalTime("11:00"),
                 convertStringToLocalTime("11:30"),
@@ -106,6 +124,7 @@ public class TreatmentFixture implements Fixture<Treatment> {
         treatments.add(new Treatment(
                 12,
                 hans,
+                armin,
                 convertStringToLocalDate("2023-06-08"),
                 convertStringToLocalTime("15:00"),
                 convertStringToLocalTime("15:30"),
@@ -115,6 +134,7 @@ public class TreatmentFixture implements Fixture<Treatment> {
         treatments.add(new Treatment(
                 14,
                 ahmet,
+                ole,
                 convertStringToLocalDate("2023-08-24"),
                 convertStringToLocalTime("09:30"),
                 convertStringToLocalTime("10:15"),
@@ -123,6 +143,7 @@ public class TreatmentFixture implements Fixture<Treatment> {
         treatments.add(new Treatment(
                 16,
                 elisabeth,
+                armin,
                 convertStringToLocalDate("2023-08-31"),
                 convertStringToLocalTime("13:30"),
                 convertStringToLocalTime("13:45"),
@@ -132,6 +153,7 @@ public class TreatmentFixture implements Fixture<Treatment> {
         treatments.add(new Treatment(
                 17,
                 elisabeth,
+                ole,
                 convertStringToLocalDate("2023-09-01"),
                 convertStringToLocalTime("16:00"),
                 convertStringToLocalTime("17:00"),

src/main/java/de/hitec/nhplus/main/MainWindowController.java

@@ -11,6 +11,12 @@ import javafx.scene.layout.BorderPane;
 import java.io.IOException;
 import java.util.Objects;
 
+/**
+ * Controller for the main window of the application, which holds all tabs.
+ *
+ * @author Bernd Heidemann
+ * @author Dominik Säume
+ */
 public class MainWindowController {
     @FXML
     private TabPane mainTabPane;
@@ -42,6 +48,9 @@ public class MainWindowController {
         medicationTab.setOnSelectionChanged(event -> loadMedicationPage());
     }
 
+    /**
+     * Loads the patient page into its tab.
+     */
     private void loadPatientPage() {
         try {
             BorderPane patientsPane = FXMLLoader.load(
@@ -57,6 +66,9 @@ public class MainWindowController {
         }
     }
 
+    /**
+     * Loads the treatment page into its tab.
+     */
     private void loadTreatmentsPage() {
         try {
             BorderPane treatmentsPane = FXMLLoader.load(
@@ -72,6 +84,9 @@ public class MainWindowController {
         }
     }
 
+    /**
+     * Loads the nurse page into its tab.
+     */
     private void loadNursePage() {
         try {
             BorderPane nursePane = FXMLLoader.load(
@@ -87,6 +102,9 @@ public class MainWindowController {
         }
     }
 
+    /**
+     * Loads the medication page into its tab.
+     */
     private void loadMedicationPage() {
         try {
             BorderPane medicationPane = FXMLLoader.load(

src/main/java/de/hitec/nhplus/main/Person.java

@@ -2,6 +2,12 @@ package de.hitec.nhplus.main;
 
 import javafx.beans.property.SimpleStringProperty;
 
+/**
+ * A simple base model for a {@link Person} that can be extended.
+ *
+ * @author Bernd Heidemann
+ * @author Dominik Säume
+ */
 public abstract class Person {
     private final SimpleStringProperty firstName;
     private final SimpleStringProperty surName;

src/main/java/de/hitec/nhplus/medication/AllMedicationController.java

@@ -20,6 +20,11 @@ import java.io.IOException;
 import java.sql.SQLException;
 import java.util.stream.Collectors;
 
+/**
+ * The controller for viewing all {@link Medication}s.
+ *
+ * @author Dominik Säume
+ */
 public class AllMedicationController {
     @FXML
     private TableView<Medication> tableView;
@@ -41,6 +46,10 @@ public class AllMedicationController {
     private final ObservableList<Medication> medications = FXCollections.observableArrayList();
     private MedicationDao dao;
 
+    /**
+     * Initialization method that is called after the binding of all the fields.
+     */
+    @FXML
     public void initialize() {
         readAllAndShowInTableView();
 
@@ -48,16 +57,14 @@ public class AllMedicationController {
         this.columnName.setCellValueFactory(new PropertyValueFactory<>("name"));
         this.columnManufacturer.setCellValueFactory(new PropertyValueFactory<>("manufacturer"));
         this.columnIngredient.setCellValueFactory(
-                cellData -> {
-                    return new SimpleStringProperty(
-                            cellData
-                                    .getValue()
-                                    .getIngredients()
-                                    .stream()
-                                    .map(ingredient -> ingredient.getName())
-                                    .collect(Collectors.joining("\n"))
-                    );
-                });
+                cellData -> new SimpleStringProperty(
+                        cellData
+                                .getValue()
+                                .getIngredients()
+                                .stream()
+                                .map(ingredient -> ingredient.getName())
+                                .collect(Collectors.joining("\n"))
+                ));
         this.columnPossibleSideEffects.setCellValueFactory(new PropertyValueFactory<>("possibleSideEffects"));
         this.columnAdministrationMethod.setCellValueFactory(new PropertyValueFactory<>("administrationMethod"));
         this.columnCurrentStock.setCellValueFactory(new PropertyValueFactory<>("currentStock"));
@@ -65,6 +72,9 @@ public class AllMedicationController {
         this.tableView.setItems(this.medications);
     }
 
+    /**
+     * Internal method to read all data and set it to the table view.
+     */
     public void readAllAndShowInTableView() {
         this.dao = DaoFactory.getInstance().createMedicationDAO();
         try {

src/main/java/de/hitec/nhplus/medication/Ingredient.java

@@ -2,6 +2,13 @@ package de.hitec.nhplus.medication;
 
 import javafx.beans.property.SimpleStringProperty;
 
+/**
+ * The simple model for an {@link Ingredient}.
+ *
+ * @author Dominik Säume
+ * @implSpec This isn't a conventional model, because it isn't directly stored in the database,
+ * but it can be changed to do that, in the case that its complexity rises in the future.
+ */
 public class Ingredient {
     private final SimpleStringProperty name;
 

src/main/java/de/hitec/nhplus/medication/Medication.java

@@ -10,6 +10,11 @@ import java.util.List;
 import java.util.StringJoiner;
 import java.util.stream.Collectors;
 
+/**
+ * The model for a {@link Medication}.
+ *
+ * @author Dominik Säume
+ */
 public class Medication {
     private SimpleIntegerProperty id;
     private final SimpleStringProperty name;
@@ -19,6 +24,13 @@ public class Medication {
     private final SimpleStringProperty administrationMethod;
     private final SimpleIntegerProperty currentStock;
 
+    /**
+     * This constructor allows instantiating a {@link Medication} object,
+     * before it is stored in the database, by omitting the {@link Medication#id ID} value.
+     *
+     * @implSpec Instances created with this constructor can be directly passed to
+     * {@link de.hitec.nhplus.medication.database.MedicationDao#create MedicationDao.create}.
+     */
     public Medication(
             String name,
             String manufacturer,
@@ -35,6 +47,9 @@ public class Medication {
         this.currentStock = new SimpleIntegerProperty(currentStock);
     }
 
+    /**
+     * This constructor allows instantiating a {@link Medication} object with all existing fields.
+     */
     public Medication(
             int id,
             String name,

src/main/java/de/hitec/nhplus/medication/database/MedicationDao.java

@@ -13,6 +13,13 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
+/**
+ * The {@link MedicationDao} is an implementation of the{@link de.hitec.nhplus.datastorage.Dao Dao}
+ * for the {@link Medication} model.
+ *
+ * @author Bernd Heidemannn
+ * @author Dominik Säume
+ */
 public class MedicationDao implements Dao<Medication> {
     protected final Connection connection;
 
@@ -153,6 +160,13 @@ public class MedicationDao implements Dao<Medication> {
         preparedStatement.executeUpdate();
     }
 
+    /**
+     * Constructs a {@link Medication} object from the {@link ResultSet} obtained after executing a database query.
+     * This method is used internally to map the {@link ResultSet} data to a {@link Medication} object.
+     *
+     * @param result The {@link ResultSet} containing the data retrieved from the database.
+     * @return A {@link Medication} object constructed from the {@link ResultSet} data.
+     */
     private Medication getInstanceFromResultSet(ResultSet result) throws SQLException {
         Medication medication = new Medication(
                 result.getInt(1),

src/main/java/de/hitec/nhplus/nurse/AllNurseController.java

@@ -17,6 +17,12 @@ import javafx.scene.control.cell.TextFieldTableCell;
 
 import java.sql.SQLException;
 
+/**
+ * The controller for viewing all {@link Nurse}s.
+ *
+ * @author Dominik Säume
+ * @author Ole Kück
+ */
 public class AllNurseController {
     @FXML
     public TextField textFieldSurName;
@@ -40,6 +46,10 @@ public class AllNurseController {
     private final ObservableList<Nurse> nurses = FXCollections.observableArrayList();
     private NurseDao dao;
 
+    /**
+     * Initialization method that is called after the binding of all the fields.
+     */
+    @FXML
     public void initialize() {
         this.readAllAndShowInTableView();
 
@@ -72,15 +82,28 @@ public class AllNurseController {
         this.textFieldPhoneNumber.textProperty().addListener(inputNewNurseValidationListener);
     }
 
+    /**
+     * Internal method to read all data and set it to the table view.
+     */
     private void readAllAndShowInTableView(){
         this.nurses.clear();
         this.dao = DaoFactory.getInstance().createNurseDAO();
         try {
-            this.nurses.addAll(this.dao.readAll());
+            this.nurses.setAll(this.dao.readAll());
         }catch (SQLException exception){
             exception.printStackTrace();
         }
     }
+
+    /**
+     * Internal method that clears the text fields used for creating a new {@link Nurse}.
+     */
+    private void clearTextfields() {
+        this.textFieldFirstName.clear();
+        this.textFieldSurName.clear();
+        this.textFieldPhoneNumber.clear();
+    }
+
     @FXML
     public void handleAdd(){
         String surname=this.textFieldSurName.getText();
@@ -96,10 +119,5 @@ public class AllNurseController {
         clearTextfields();
     }
 
-    private void clearTextfields() {
-        this.textFieldFirstName.clear();
-        this.textFieldSurName.clear();
-        this.textFieldPhoneNumber.clear();
-    }
 
 }

src/main/java/de/hitec/nhplus/nurse/Nurse.java

@@ -6,10 +6,22 @@ import javafx.beans.property.SimpleStringProperty;
 
 import java.util.StringJoiner;
 
+/**
+ * The model for a {@link Nurse}.
+ *
+ * @author Dominik Säume
+ */
 public class Nurse extends Person {
     private SimpleIntegerProperty id;
     private final SimpleStringProperty phoneNumber;
 
+    /**
+     * This constructor allows instantiating a {@link Nurse} object,
+     * before it is stored in the database, by omitting the {@link Nurse#id ID} value.
+     *
+     * @implSpec Instances created with this constructor can be directly passed to
+     * {@link de.hitec.nhplus.nurse.database.NurseDao#create  NurseDao.create}.
+     */
     public Nurse(
             String firstName,
             String surName,
@@ -19,6 +31,9 @@ public class Nurse extends Person {
         this.phoneNumber = new SimpleStringProperty(phoneNumber);
     }
 
+    /**
+     * This constructor allows instantiating a {@link Nurse} object with all existing fields.
+     */
     public Nurse(
             int id,
             String firstName,

src/main/java/de/hitec/nhplus/nurse/database/NurseDao.java

@@ -10,6 +10,12 @@ import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.List;
 
+/**
+ * The {@link NurseDao} is an implementation of the {@link de.hitec.nhplus.datastorage.Dao Dao}
+ * for the {@link Nurse} model.
+ *
+ * @author Dominik Säume
+ */
 public class NurseDao extends DaoImp<Nurse> {
     public NurseDao(Connection connection) {
         super(connection);

src/main/java/de/hitec/nhplus/patient/AllPatientController.java

@@ -19,6 +19,13 @@ import java.time.LocalDate;
 
 import static de.hitec.nhplus.utils.Validator.*;
 
+/**
+ * The controller for viewing all {@link Patient}s.
+ *
+ * @author Bernd Heidemann
+ * @author Dominik Säume
+ * @author Armin Ribic
+ */
 public class AllPatientController {
 
     @FXML
@@ -53,6 +60,10 @@ public class AllPatientController {
     private final ObservableList<Patient> patients = FXCollections.observableArrayList();
     private PatientDao dao;
 
+    /**
+     * Initialization method that is called after the binding of all the fields.
+     */
+    @FXML
     public void initialize() {
         this.readAllAndShowInTableView();
 
@@ -104,6 +115,41 @@ public class AllPatientController {
         this.textFieldRoomNumber.textProperty().addListener(inputNewPatientValidationListener);
     }
 
+    /**
+     * Internal method to read all data and set it to the table view.
+     */
+    private void readAllAndShowInTableView() {
+        this.patients.clear();
+        this.dao = DaoFactory.getInstance().createPatientDAO();
+        try {
+            this.patients.setAll(this.dao.readAll());
+        } catch (SQLException exception) {
+            exception.printStackTrace();
+        }
+    }
+
+    /**
+     * Internal method that stores the changes in the database.
+     */
+    private void doUpdate(TableColumn.CellEditEvent<Patient, String> event) {
+        try {
+            this.dao.update(event.getRowValue());
+        } catch (SQLException exception) {
+            exception.printStackTrace();
+        }
+    }
+
+    /**
+     * Internal method that clears the text fields used for creating a new {@link Patient}.
+     */
+    private void clearTextfields() {
+        this.textFieldFirstName.clear();
+        this.textFieldSurName.clear();
+        this.textFieldDateOfBirth.clear();
+        this.textFieldCareLevel.clear();
+        this.textFieldRoomNumber.clear();
+    }
+
     @FXML
     public void handleOnEditFirstname(TableColumn.CellEditEvent<Patient, String> event) {
         String newFirstName = event.getNewValue();
@@ -164,25 +210,6 @@ public class AllPatientController {
         this.doUpdate(event);
     }
 
-
-    private void doUpdate(TableColumn.CellEditEvent<Patient, String> event) {
-        try {
-            this.dao.update(event.getRowValue());
-        } catch (SQLException exception) {
-            exception.printStackTrace();
-        }
-    }
-
-    private void readAllAndShowInTableView() {
-        this.patients.clear();
-        this.dao = DaoFactory.getInstance().createPatientDAO();
-        try {
-            this.patients.addAll(this.dao.readAll());
-        } catch (SQLException exception) {
-            exception.printStackTrace();
-        }
-    }
-
     @FXML
     public void handleDelete() {
         Patient selectedItem = this.tableView.getSelectionModel().getSelectedItem();
@@ -212,12 +239,4 @@ public class AllPatientController {
         readAllAndShowInTableView();
         clearTextfields();
     }
-
-    private void clearTextfields() {
-        this.textFieldFirstName.clear();
-        this.textFieldSurName.clear();
-        this.textFieldDateOfBirth.clear();
-        this.textFieldCareLevel.clear();
-        this.textFieldRoomNumber.clear();
-    }
 }

src/main/java/de/hitec/nhplus/patient/Patient.java

@@ -11,6 +11,13 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.StringJoiner;
 
+/**
+ * The model for a {@link Patient}.
+ *
+ * @author Bernd Heidemann
+ * @author Dominik Säume
+ * @author Armin Ribic
+ */
 public class Patient extends Person {
     private SimpleIntegerProperty id;
     private final SimpleStringProperty dateOfBirth;
@@ -18,6 +25,13 @@ public class Patient extends Person {
     private final SimpleStringProperty roomNumber;
     private final List<Treatment> allTreatments = new ArrayList<>();
 
+    /**
+     * This constructor allows instantiating a {@link Patient} object,
+     * before it is stored in the database, by omitting the {@link Patient#id ID} value.
+     *
+     * @implSpec Instances created with this constructor can be directly passed to
+     * {@link de.hitec.nhplus.patient.database.PatientDao#create PatientDao.create}.
+     */
     public Patient(
             String firstName,
             String surName,
@@ -31,6 +45,9 @@ public class Patient extends Person {
         this.roomNumber = new SimpleStringProperty(roomNumber);
     }
 
+    /**
+     * This constructor allows instantiating a {@link Patient} object with all existing fields.
+     */
     public Patient(
             int id,
             String firstName,

src/main/java/de/hitec/nhplus/patient/database/PatientDao.java

@@ -11,6 +11,13 @@ import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.List;
 
+/**
+ * The {@link PatientDao} is an implementation of the {@link de.hitec.nhplus.datastorage.Dao Dao}
+ * for the {@link Patient} model.
+ *
+ * @author Bernd Heidemannn
+ * @author Dominik Säume
+ */
 public class PatientDao extends DaoImp<Patient> {
 
     public PatientDao(Connection connection) {

src/main/java/de/hitec/nhplus/treatment/AllTreatmentController.java

@@ -2,6 +2,8 @@ package de.hitec.nhplus.treatment;
 
 import de.hitec.nhplus.Main;
 import de.hitec.nhplus.datastorage.DaoFactory;
+import de.hitec.nhplus.nurse.Nurse;
+import de.hitec.nhplus.nurse.database.NurseDao;
 import de.hitec.nhplus.patient.Patient;
 import de.hitec.nhplus.patient.database.PatientDao;
 import de.hitec.nhplus.treatment.database.TreatmentDao;
@@ -20,6 +22,12 @@ import java.io.IOException;
 import java.sql.SQLException;
 import java.util.ArrayList;
 
+/**
+ * The controller for viewing all {@link Treatment}s.
+ *
+ * @author Bernd Heidemann
+ * @author Dominik Säume
+ */
 public class AllTreatmentController {
 
     @FXML
@@ -31,6 +39,9 @@ public class AllTreatmentController {
     @FXML
     private TableColumn<Treatment, String> columnPatientName;
 
+    @FXML
+    private TableColumn<Treatment, String> columnNurseName;
+
     @FXML
     private TableColumn<Treatment, String> columnDate;
 
@@ -46,6 +57,9 @@ public class AllTreatmentController {
     @FXML
     private ComboBox<String> comboBoxPatientSelection;
 
+    @FXML
+    public ComboBox<String> comboBoxNurseSelection;
+
     @FXML
     private Button buttonDelete;
 
@@ -53,19 +67,33 @@ public class AllTreatmentController {
     private TreatmentDao dao;
     private final ObservableList<String> patientSelection = FXCollections.observableArrayList();
     private ArrayList<Patient> patientList;
+    private final ObservableList<String> nurseSelection = FXCollections.observableArrayList();
+    private ArrayList<Nurse> nurseList;
 
+    /**
+     * Initialization method that is called after the binding of all the fields.
+     */
+    @FXML
     public void initialize() {
         readAllAndShowInTableView();
         comboBoxPatientSelection.setItems(patientSelection);
-        comboBoxPatientSelection.getSelectionModel().select(0);
+        comboBoxPatientSelection.getSelectionModel().select("alle");
+
+        comboBoxNurseSelection.setItems(nurseSelection);
 
         this.columnId.setCellValueFactory(new PropertyValueFactory<>("id"));
         this.columnPatientName.setCellValueFactory(
-                cellData ->  {
+                cellData -> {
                     Patient patient = cellData.getValue().getPatient();
                     return new SimpleStringProperty(patient.getSurName() + ", " + patient.getFirstName());
                 }
         );
+        this.columnNurseName.setCellValueFactory(
+                cellData -> {
+                    Nurse nurse = cellData.getValue().getNurse();
+                    return new SimpleStringProperty(nurse.getSurName() + ", " + nurse.getFirstName());
+                }
+        );
         this.columnDate.setCellValueFactory(new PropertyValueFactory<>("date"));
         this.columnBegin.setCellValueFactory(new PropertyValueFactory<>("begin"));
         this.columnEnd.setCellValueFactory(new PropertyValueFactory<>("end"));
@@ -83,8 +111,10 @@ public class AllTreatmentController {
         this.createComboBoxData();
     }
 
+    /**
+     * Internal method to read all data and set it to the table view.
+     */
     public void readAllAndShowInTableView() {
-        comboBoxPatientSelection.getSelectionModel().select(0);
         this.dao = DaoFactory.getInstance().createTreatmentDao();
         try {
             this.treatments.setAll(dao.readAll());
@@ -93,22 +123,83 @@ public class AllTreatmentController {
         }
     }
 
+    /**
+     * Internal method to create the data set for the combobox that is used for creating a new {@link Treatment}.
+     */
     private void createComboBoxData() {
-        PatientDao dao = DaoFactory.getInstance().createPatientDAO();
+        PatientDao patientDAO = DaoFactory.getInstance().createPatientDAO();
+        NurseDao nurseDao = DaoFactory.getInstance().createNurseDAO();
         try {
-            patientList = (ArrayList<Patient>) dao.readAll();
+            patientList = (ArrayList<Patient>) patientDAO.readAll();
             this.patientSelection.add("alle");
             for (Patient patient : patientList) {
                 this.patientSelection.add(patient.getSurName());
             }
+
+            nurseList = (ArrayList<Nurse>) nurseDao.readAll();
+            for (Nurse nurse : nurseList) {
+                this.nurseSelection.add(nurse.getSurName());
+            }
         } catch (SQLException exception) {
             exception.printStackTrace();
         }
     }
 
+    /**
+     * Internal method to get the {@link Patient} object by its surname.
+     *
+     * @see AllTreatmentController#handleComboBoxPatient
+     * @see AllTreatmentController#handleNewTreatment
+     */
+    private Patient searchInPatientList(String surname) {
+        for (Patient patient : this.patientList) {
+            if (patient.getSurName().equals(surname)) {
+                return patient;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Internal method to get the {@link Nurse} object by its surname.
+     *
+     * @see AllTreatmentController#handleNewTreatment
+     */
+    private Nurse searchInNurseList(String surname) {
+        for (Nurse nurse : this.nurseList) {
+            if (nurse.getSurName().equals(surname)) {
+                return nurse;
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Method to save the changes to a {@link Treatment}.
+     */
+    protected void updateTreatment(Treatment treatment) {
+        TreatmentDao dao = DaoFactory.getInstance().createTreatmentDao();
+        try {
+            dao.update(treatment);
+        } catch (SQLException exception) {
+            exception.printStackTrace();
+        }
+    }
+
+    /**
+     * Method to create a new {@link Treatment}.
+     */
+    public void createTreatment(Treatment treatment) {
+        TreatmentDao dao = DaoFactory.getInstance().createTreatmentDao();
+        try {
+            dao.create(treatment);
+        } catch (SQLException exception) {
+            exception.printStackTrace();
+        }
+    }
 
     @FXML
-    public void handleComboBox() {
+    public void handleComboBoxPatient() {
         String selectedPatient = this.comboBoxPatientSelection.getSelectionModel().getSelectedItem();
         this.treatments.clear();
         this.dao = DaoFactory.getInstance().createTreatmentDao();
@@ -121,23 +212,50 @@ public class AllTreatmentController {
             }
         }
 
-        Patient patient = searchInList(selectedPatient);
+        Patient patient = searchInPatientList(selectedPatient);
         if (patient != null) {
             try {
-                this.treatments.setAll(this.dao.readTreatmentsByPid(patient.getId()));
+                this.treatments.setAll(this.dao.readTreatmentsByPatient(patient.getId()));
             } catch (SQLException exception) {
                 exception.printStackTrace();
             }
         }
     }
 
-    private Patient searchInList(String surname) {
-        for (Patient patient : this.patientList) {
-            if (patient.getSurName().equals(surname)) {
-                return patient;
-            }
+    /**
+     * Internal method to create a {@link TreatmentModalController TreatmentModal}.
+     *
+     * @param treatment The {@link Treatment} which should be edited. Set null to create a new one.
+     * @param title     The Title of the created modal.
+     * @param patient   The {@link Patient} whose {@link Treatment} this is.
+     * @param nurse     The {@link Nurse} who did the {@link Treatment}.
+     */
+    public void treatmentWindow(Treatment treatment, String title, Patient patient, Nurse nurse) {
+        try {
+            FXMLLoader loader = new FXMLLoader(
+                    Main.class.getResource("/de/hitec/nhplus/treatment/TreatmentModal.fxml")
+            );
+            BorderPane pane = loader.load();
+            Scene scene = new Scene(pane);
+            Stage stage = new Stage();
+
+            TreatmentModalController controller = loader.getController();
+            controller.initialize(
+                    this,
+                    stage,
+                    treatment,
+                    patient,
+                    nurse
+            );
+
+            stage.setScene(scene);
+            stage.setTitle(title);
+            stage.setResizable(true);
+            stage.setAlwaysOnTop(true);
+            stage.showAndWait();
+        } catch (IOException exception) {
+            exception.printStackTrace();
         }
-        return null;
     }
 
     @FXML
@@ -154,17 +272,31 @@ public class AllTreatmentController {
 
     @FXML
     public void handleNewTreatment() {
-        try {
-            String selectedPatient = this.comboBoxPatientSelection.getSelectionModel().getSelectedItem();
-            Patient patient = searchInList(selectedPatient);
-            newTreatmentWindow(patient);
-        } catch (NullPointerException exception) {
+        String selectedPatient = this.comboBoxPatientSelection.getSelectionModel().getSelectedItem();
+        Patient patient = searchInPatientList(selectedPatient);
+
+        if(patient == null) {
             Alert alert = new Alert(Alert.AlertType.INFORMATION);
             alert.setTitle("Information");
             alert.setHeaderText("Patient für die Behandlung fehlt!");
             alert.setContentText("Wählen Sie über die Combobox einen Patienten aus!");
             alert.showAndWait();
+            return;
         }
+
+        String selectedNurse = this.comboBoxNurseSelection.getSelectionModel().getSelectedItem();
+        Nurse nurse = searchInNurseList(selectedNurse);
+
+        if(nurse == null) {
+            Alert alert = new Alert(Alert.AlertType.INFORMATION);
+            alert.setTitle("Information");
+            alert.setHeaderText("Pfleger für die Behandlung fehlt!");
+            alert.setContentText("Wählen Sie über die Combobox einen Pfleger aus!");
+            alert.showAndWait();
+            return;
+        }
+
+        treatmentWindow(null, "NHPlus - Neue Behandlung", patient, nurse);
     }
 
     @FXML
@@ -174,81 +306,14 @@ public class AllTreatmentController {
             if (event.getClickCount() == 2 && (tableView.getSelectionModel().getSelectedItem() != null)) {
                 int index = this.tableView.getSelectionModel().getSelectedIndex();
                 Treatment treatment = this.treatments.get(index);
-                treatmentWindow(treatment);
+                treatmentWindow(
+                        treatment,
+                        "NHPlus - Behandlung",
+                        treatment.getPatient(),
+                        treatment.getNurse()
+                );
             }
         });
-    }
 
-    public void newTreatmentWindow(Patient patient) {
-        try {
-            FXMLLoader loader = new FXMLLoader(
-                    Main.class.getResource("/de/hitec/nhplus/treatment/TreatmentModal.fxml")
-            );
-            BorderPane pane = loader.load();
-            Scene scene = new Scene(pane);
-            Stage stage = new Stage();
-
-            TreatmentModalController controller = loader.getController();
-            controller.initialize(
-                    this,
-                    stage,
-                    null,
-                    patient
-            );
-
-            stage.setScene(scene);
-            stage.setTitle("NHPlus - Neue Behandlung");
-            stage.setResizable(true);
-            stage.setAlwaysOnTop(true);
-            stage.showAndWait();
-        } catch (IOException exception) {
-            exception.printStackTrace();
-        }
-    }
-
-    public void treatmentWindow(Treatment treatment) {
-        try {
-            FXMLLoader loader = new FXMLLoader(
-                    Main.class.getResource("/de/hitec/nhplus/treatment/TreatmentModal.fxml")
-            );
-            BorderPane pane = loader.load();
-            Scene scene = new Scene(pane);
-            Stage stage = new Stage();
-
-            TreatmentModalController controller = loader.getController();
-            PatientDao pDao = DaoFactory.getInstance().createPatientDAO();
-            controller.initialize(
-                    this,
-                    stage,
-                    treatment,
-                    pDao.read(treatment.getPatient().getId())
-            );
-
-            stage.setScene(scene);
-            stage.setTitle("NHPlus - Behandlung");
-            stage.setResizable(true);
-            stage.setAlwaysOnTop(true);
-            stage.showAndWait();
-        } catch (IOException | SQLException exception) {
-            exception.printStackTrace();
-        }
-    }
-
-    public void createTreatment(Treatment treatment) {
-        TreatmentDao dao = DaoFactory.getInstance().createTreatmentDao();
-        try {
-            dao.create(treatment);
-        } catch (SQLException exception) {
-            exception.printStackTrace();
-        }
-    }
-
-    public void updateTreatment(Treatment treatment) {
-        TreatmentDao dao = DaoFactory.getInstance().createTreatmentDao();
-        try {
-            dao.update(treatment);
-        } catch (SQLException exception) {
-            exception.printStackTrace();
-        }
     }
 }

src/main/java/de/hitec/nhplus/treatment/Treatment.java

@@ -1,5 +1,6 @@
 package de.hitec.nhplus.treatment;
 
+import de.hitec.nhplus.nurse.Nurse;
 import de.hitec.nhplus.patient.Patient;
 import de.hitec.nhplus.utils.DateConverter;
 import javafx.beans.property.SimpleIntegerProperty;
@@ -10,18 +11,40 @@ import java.time.LocalDate;
 import java.time.LocalTime;
 import java.util.StringJoiner;
 
+/**
+ * The model for a {@link Treatment}.
+ *
+ * @author Bernd Heidemann
+ * @author Dominik Säume
+ */
 public class Treatment {
     private SimpleIntegerProperty id;
     private final SimpleObjectProperty<Patient> patient;
+    private final SimpleObjectProperty<Nurse> nurse;
     private final SimpleObjectProperty<LocalDate> date;
     private final SimpleObjectProperty<LocalTime> begin;
     private final SimpleObjectProperty<LocalTime> end;
     private final SimpleStringProperty description;
     private final SimpleStringProperty remarks;
 
-    public Treatment(Patient patient, LocalDate date, LocalTime begin,
-                     LocalTime end, String description, String remarks) {
+    /**
+     * This constructor allows instantiating a {@link Treatment} object,
+     * before it is stored in the database, by omitting the {@link Treatment#id ID} value.
+     *
+     * @implSpec Instances created with this constructor can be directly passed to
+     * {@link de.hitec.nhplus.treatment.database.TreatmentDao#create TreatmentDao.create}.
+     */
+    public Treatment(
+            Patient patient,
+            Nurse nurse,
+            LocalDate date,
+            LocalTime begin,
+            LocalTime end,
+            String description,
+            String remarks
+    ) {
         this.patient = new SimpleObjectProperty<>(patient);
+        this.nurse = new SimpleObjectProperty<>(nurse);
         this.date = new SimpleObjectProperty<>(date);
         this.begin = new SimpleObjectProperty<>(begin);
         this.end = new SimpleObjectProperty<>(end);
@@ -29,10 +52,22 @@ public class Treatment {
         this.remarks = new SimpleStringProperty(remarks);
     }
 
-    public Treatment(int id, Patient patient, LocalDate date, LocalTime begin,
-                     LocalTime end, String description, String remarks) {
+    /**
+     * This constructor allows instantiating a {@link Treatment} object with all existing fields.
+     */
+    public Treatment(
+            int id,
+            Patient patient,
+            Nurse nurse,
+            LocalDate date,
+            LocalTime begin,
+            LocalTime end,
+            String description,
+            String remarks
+    ) {
         this.id = new SimpleIntegerProperty(id);
         this.patient = new SimpleObjectProperty<>(patient);
+        this.nurse = new SimpleObjectProperty<>(nurse);
         this.date = new SimpleObjectProperty<>(date);
         this.begin = new SimpleObjectProperty<>(begin);
         this.end = new SimpleObjectProperty<>(end);
@@ -48,6 +83,10 @@ public class Treatment {
         return patient.getValue();
     }
 
+    public Nurse getNurse() {
+        return nurse.getValue();
+    }
+
     public String getDate() {
         return date.getValue().toString();
     }
@@ -88,6 +127,10 @@ public class Treatment {
         return patient;
     }
 
+    public SimpleObjectProperty<Nurse> nurseProperty() {
+        return nurse;
+    }
+
     public SimpleObjectProperty<LocalDate> dateProperty() {
         return date;
     }
@@ -117,6 +160,7 @@ public class Treatment {
                 .add("TREATMENT")
                 .add("ID: " + this.getId())
                 .add("Patient: " + this.getPatient().getSurName() + ", " + this.getPatient().getFirstName())
+                .add("Nurse: " + this.getNurse().getSurName() + ", " + this.getNurse().getFirstName())
                 .add("Date: " + this.getDate())
                 .add("Begin: " + this.getBegin())
                 .add("End: " + this.getEnd())

src/main/java/de/hitec/nhplus/treatment/TreatmentModalController.java

@@ -1,5 +1,6 @@
 package de.hitec.nhplus.treatment;
 
+import de.hitec.nhplus.nurse.Nurse;
 import de.hitec.nhplus.patient.Patient;
 import de.hitec.nhplus.utils.DateConverter;
 import javafx.beans.value.ChangeListener;
@@ -13,7 +14,14 @@ import java.time.LocalTime;
 
 import static de.hitec.nhplus.utils.Validator.*;
 
+/**
+ * The controller for creating and editing a specific {@link Treatment}.
+ *
+ * @author Dominik Säume
+ */
 public class TreatmentModalController {
+    @FXML
+    private Label labelNurseName;
     @FXML
     private Label labelFirstName;
     @FXML
@@ -33,18 +41,30 @@ public class TreatmentModalController {
     private AllTreatmentController controller;
     private Stage stage;
     private Patient patient;
+    private Nurse nurse;
     private Treatment treatment;
     private boolean isNewTreatment = false;
 
-    public void initialize(AllTreatmentController controller, Stage stage, Treatment treatment, Patient patient) {
+    /**
+     * Initialization method that is called after the binding of all the fields.
+     */
+    public void initialize(
+            AllTreatmentController controller,
+            Stage stage,
+            Treatment treatment,
+            Patient patient,
+            Nurse nurse
+    ) {
         this.controller = controller;
         this.stage = stage;
         this.patient = patient;
+        this.nurse = nurse;
         if (treatment == null) {
             isNewTreatment = true;
             LocalTime currentTime = LocalTime.now();
             this.treatment = new Treatment(
                     patient,
+                    nurse,
                     LocalDate.now(),
                     LocalTime.of(currentTime.getHour(), currentTime.getMinute()),
                     LocalTime.of(currentTime.getHour(), currentTime.getMinute()),
@@ -60,16 +80,16 @@ public class TreatmentModalController {
         ChangeListener<String> inputNewTreatmentTextValidationListener = (observableValue, oldText, newText) ->
         {
             boolean isValid = isValidDate(this.datePicker.getValue())
-                    && isValidTimeRange(this.textFieldBegin.getText(), this.textFieldEnd.getText())
-                    && isValidDescription(this.textFieldDescription.getText());
+                              && isValidTimeRange(this.textFieldBegin.getText(), this.textFieldEnd.getText())
+                              && isValidDescription(this.textFieldDescription.getText());
 
             this.buttonSave.setDisable(!isValid);
         };
         ChangeListener<LocalDate> inputNewTreatmentDateValidationListener = (observableValue, localDate, t1) ->
         {
             boolean isValid = isValidDate(this.datePicker.getValue())
-                    && isValidTimeRange(this.textFieldBegin.getText(), this.textFieldEnd.getText())
-                    && isValidDescription(this.textFieldDescription.getText());
+                              && isValidTimeRange(this.textFieldBegin.getText(), this.textFieldEnd.getText())
+                              && isValidDescription(this.textFieldDescription.getText());
 
             this.buttonSave.setDisable(!isValid);
         };
@@ -97,7 +117,11 @@ public class TreatmentModalController {
 
     }
 
+    /**
+     * Internal method to show the data in the view.
+     */
     private void showData() {
+        this.labelNurseName.setText(nurse.getSurName());
         this.labelFirstName.setText(patient.getFirstName());
         this.labelSurName.setText(patient.getSurName());
         LocalDate date = DateConverter.convertStringToLocalDate(treatment.getDate());
@@ -136,8 +160,4 @@ public class TreatmentModalController {
     public void handleCancel() {
         stage.close();
     }
-
-    public Treatment getTreatment() {
-        return treatment;
-    }
 }

src/main/java/de/hitec/nhplus/treatment/database/TreatmentDao.java

@@ -2,6 +2,8 @@ package de.hitec.nhplus.treatment.database;
 
 import de.hitec.nhplus.datastorage.DaoFactory;
 import de.hitec.nhplus.datastorage.DaoImp;
+import de.hitec.nhplus.patient.Patient;
+import de.hitec.nhplus.nurse.Nurse;
 import de.hitec.nhplus.treatment.Treatment;
 import de.hitec.nhplus.utils.DateConverter;
 
@@ -12,6 +14,13 @@ import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.List;
 
+/**
+ * The {@link TreatmentDao} is an implementation of the {@link de.hitec.nhplus.datastorage.Dao Dao}
+ * for the {@link Treatment} model.
+ *
+ * @author Bernd Heidemannn
+ * @author Dominik Säume
+ */
 public class TreatmentDao extends DaoImp<Treatment> {
 
     public TreatmentDao(Connection connection) {
@@ -22,16 +31,17 @@ public class TreatmentDao extends DaoImp<Treatment> {
     protected PreparedStatement getCreateStatement(Treatment treatment) throws SQLException {
         final String SQL = """
                     INSERT INTO treatment
-                    (patientId, date, begin, end, description, remark)
-                    VALUES (?, ?, ?, ?, ?, ?)
+                    (patientId, nurseId, date, begin, end, description, remark)
+                    VALUES (?, ?, ?, ?, ?, ?, ?)
                 """;
         PreparedStatement statement = this.connection.prepareStatement(SQL);
         statement.setInt(1, treatment.getPatient().getId());
-        statement.setString(2, treatment.getDate());
-        statement.setString(3, treatment.getBegin());
-        statement.setString(4, treatment.getEnd());
-        statement.setString(5, treatment.getDescription());
-        statement.setString(6, treatment.getRemarks());
+        statement.setInt(2, treatment.getNurse().getId());
+        statement.setString(3, treatment.getDate());
+        statement.setString(4, treatment.getBegin());
+        statement.setString(5, treatment.getEnd());
+        statement.setString(6, treatment.getDescription());
+        statement.setString(7, treatment.getRemarks());
         return statement;
     }
 
@@ -48,11 +58,12 @@ public class TreatmentDao extends DaoImp<Treatment> {
         return new Treatment(
                 result.getInt(1),
                 DaoFactory.getInstance().createPatientDAO().read(result.getInt(2)),
-                DateConverter.convertStringToLocalDate(result.getString(3)),
-                DateConverter.convertStringToLocalTime(result.getString(4)),
+                DaoFactory.getInstance().createNurseDAO().read(result.getInt(3)),
+                DateConverter.convertStringToLocalDate(result.getString(4)),
                 DateConverter.convertStringToLocalTime(result.getString(5)),
-                result.getString(6),
-                result.getString(7)
+                DateConverter.convertStringToLocalTime(result.getString(6)),
+                result.getString(7),
+                result.getString(8)
         );
     }
 
@@ -71,15 +82,33 @@ public class TreatmentDao extends DaoImp<Treatment> {
         return list;
     }
 
-    private PreparedStatement getReadAllTreatmentsOfOnePatientByPid(int patientId) throws SQLException {
+    /**
+     * Retrieves a list of {@link Treatment}s associated with a specific
+     * {@link Patient#id patient ID} from the database.
+     *
+     * @param patientId The {@link Patient#id ID} of the {@link Patient} whose {@link Treatment}s are to be retrieved.
+     * @return A {@link List} of {@link Treatment} objects associated with the specified {@link Patient} ID.
+     */
+    public List<Treatment> readTreatmentsByPatient(int patientId) throws SQLException {
         final String SQL = "SELECT * FROM treatment WHERE patientId = ?";
         PreparedStatement statement = this.connection.prepareStatement(SQL);
         statement.setInt(1, patientId);
-        return statement;
+        ResultSet result = statement.executeQuery();
+        return getListFromResultSet(result);
     }
 
-    public List<Treatment> readTreatmentsByPid(int patientId) throws SQLException {
-        ResultSet result = getReadAllTreatmentsOfOnePatientByPid(patientId).executeQuery();
+    /**
+     * Retrieves a list of {@link Treatment}s associated with a specific
+     * {@link Nurse#id patient ID} from the database.
+     *
+     * @param nurseId The {@link Nurse#id ID} of the {@link Nurse} whose {@link Treatment}s are to be retrieved.
+     * @return A {@link List} of {@link Treatment} objects associated with the specified {@link Nurse} ID.
+     */
+    public List<Treatment> readTreatmentsByNurse(int nurseId) throws SQLException {
+        final String SQL = "SELECT * FROM treatment WHERE nurseId = ?";
+        PreparedStatement statement = this.connection.prepareStatement(SQL);
+        statement.setInt(1, nurseId);
+        ResultSet result = statement.executeQuery();
         return getListFromResultSet(result);
     }
 
@@ -87,7 +116,6 @@ public class TreatmentDao extends DaoImp<Treatment> {
     protected PreparedStatement getUpdateStatement(Treatment treatment) throws SQLException {
         final String SQL = """
                    UPDATE treatment SET
-                   patientId = ?,
                    date = ?,
                    begin = ?,
                    end = ?,
@@ -96,13 +124,12 @@ public class TreatmentDao extends DaoImp<Treatment> {
                    WHERE id = ?
                 """;
         PreparedStatement statement = this.connection.prepareStatement(SQL);
-        statement.setInt(1, treatment.getPatient().getId());
-        statement.setString(2, treatment.getDate());
-        statement.setString(3, treatment.getBegin());
-        statement.setString(4, treatment.getEnd());
-        statement.setString(5, treatment.getDescription());
-        statement.setString(6, treatment.getRemarks());
-        statement.setInt(7, treatment.getId());
+        statement.setString(1, treatment.getDate());
+        statement.setString(2, treatment.getBegin());
+        statement.setString(3, treatment.getEnd());
+        statement.setString(4, treatment.getDescription());
+        statement.setString(5, treatment.getRemarks());
+        statement.setInt(6, treatment.getId());
         return statement;
     }
 

src/main/java/de/hitec/nhplus/utils/DateConverter.java

@@ -4,23 +4,44 @@ import java.time.LocalDate;
 import java.time.LocalTime;
 import java.time.format.DateTimeFormatter;
 
+/**
+ * A utility class that holds utility methods for date conversion.
+ *
+ * @author Bernd Heidemann
+ */
 public class DateConverter {
 
     private static final String DATE_FORMAT = "yyyy-MM-dd";
     private static final String TIME_FORMAT = "HH:mm";
 
+    /**
+     * @param date A date {@link String} in the format: yyyy-MM-dd.
+     * @return The converted date {@link String} as {@link LocalDate}.
+     */
     public static LocalDate convertStringToLocalDate(String date) {
         return LocalDate.parse(date, DateTimeFormatter.ofPattern(DATE_FORMAT));
     }
 
+    /**
+     * @param time A time {@link String} in the format: HH:mm.
+     * @return The converted time {@link String} as {@link LocalTime}.
+     */
     public static LocalTime convertStringToLocalTime(String time) {
         return LocalTime.parse(time, DateTimeFormatter.ofPattern(TIME_FORMAT));
     }
 
+    /**
+     * @param date A {@link LocalDate} which should be converted to a {@link String}.
+     * @return The converted {@link LocalDate} in the format: yyy-MM-dd.
+     */
     public static String convertLocalDateToString(LocalDate date) {
         return date.format(DateTimeFormatter.ofPattern(DATE_FORMAT));
     }
 
+    /**
+     * @param time A {@link LocalTime} which should be converted to a {@link String}.
+     * @return The converted {@link LocalTime} in the format: HH:mm.
+     */
     public static String convertLocalTimeToString(LocalTime time) {
         return time.format(DateTimeFormatter.ofPattern(TIME_FORMAT));
     }

src/main/java/de/hitec/nhplus/utils/Validator.java

@@ -5,17 +5,34 @@ import javafx.scene.control.Alert;
 import java.time.LocalDate;
 import java.time.LocalTime;
 
-public class Validator
-{
-    public static void showValidationError(String type){
+/**
+ * A utility class for validating all kinds of data.
+ *
+ * @author Dominik Säume
+ * @author Ole Kück
+ */
+public class Validator {
+
+    /**
+     * Shows a modal with a specific validation error.
+     *
+     * @param type The type for which a validation error should be shown as {@link String}.
+     */
+    public static void showValidationError(String type) {
         Alert alert = new Alert(Alert.AlertType.ERROR);
         alert.setTitle("Error");
         alert.setHeaderText(null);
         alert.setContentText("Invalid " + type + " !");
         alert.showAndWait();
     }
+
+    /**
+     * Validate that a {@link String} is a valid date.
+     *
+     * @param text The date {@link String} to validate.
+     */
     public static boolean isValidDate(String text) {
-        if(text.isBlank()){
+        if (text.isBlank()) {
             return false;
         }
         try {
@@ -25,8 +42,14 @@ public class Validator
         }
         return true;
     }
+
+    /**
+     * Validate that a {@link LocalDate} is a valid date for storage in the database.
+     *
+     * @param date The {@link LocalDate} to validate.
+     */
     public static boolean isValidDate(LocalDate date) {
-        if(date == null){
+        if (date == null) {
             return false;
         }
         try {
@@ -36,21 +59,34 @@ public class Validator
         }
         return true;
     }
-    public static boolean isValidTime(String text){
-        if(text.isBlank()){
+
+    /**
+     * Validate that a {@link String} is a valid time.
+     *
+     * @param text The time {@link String} to validate.
+     */
+    public static boolean isValidTime(String text) {
+        if (text.isBlank()) {
             return false;
         }
         try {
             DateConverter.convertStringToLocalTime(text);
-        }catch (Exception exception){
+        } catch (Exception exception) {
             return false;
         }
         return true;
     }
-    public static boolean isValidTimeRange(String start, String end){
-        if(
-            !isValidTime(start) || !isValidTime(end)
-        ){
+
+    /**
+     * Validate that two time {@link String}s are a valid time range.
+     *
+     * @param start The starting time {@link String}.
+     * @param end   The ending time {@link String}.
+     */
+    public static boolean isValidTimeRange(String start, String end) {
+        if (
+                !isValidTime(start) || !isValidTime(end)
+        ) {
             return false;
         }
         LocalTime startTime = DateConverter.convertStringToLocalTime(start);
@@ -59,24 +95,57 @@ public class Validator
 
     }
 
-    public static  boolean isValidDescription(String text) {
-        return !text.isBlank();
-    }
-    public static boolean isValidFirstName(String text){
-        return !text.isBlank();
-    }
-    public static boolean isValidSurName(String text){
-        return !text.isBlank();
-    }
-    public static boolean isValidPhoneNumber(String text){
-        return !text.isBlank();
-    }
-    public static boolean isValidCareLevel(String text){
-        return !text.isBlank();
-    }
-    public static boolean isValidRoomNumber(String text){
+    /**
+     * Validate that a {@link String} is a valid description.
+     *
+     * @param text The {@link String} to validate.
+     */
+    public static boolean isValidDescription(String text) {
         return !text.isBlank();
     }
 
+    /**
+     * Validate that a {@link String} is a valid first name.
+     *
+     * @param text The {@link String} to validate.
+     */
+    public static boolean isValidFirstName(String text) {
+        return !text.isBlank();
+    }
+
+    /**
+     * Validate that a {@link String} is a valid surname.
+     *
+     * @param text The {@link String} to validate.
+     */
+    public static boolean isValidSurName(String text) {
+        return !text.isBlank();
+    }
+
+    /**
+     * Validate that a {@link String} is a valid phone number.
+     *
+     * @param text The {@link String} to validate.
+     */
+    public static boolean isValidPhoneNumber(String text) {
+        return !text.isBlank();
+    }
+
+    /**
+     * Validate that a {@link String} is a valid care level.
+     *
+     * @param text The {@link String} to validate.
+     */
+    public static boolean isValidCareLevel(String text) {
+        return !text.isBlank();
+    }
+
+    /**
+     * Validate that a {@link String} is a valid room number.
+     *
+     * @param text The {@link String} to validate.
+     */
+    public static boolean isValidRoomNumber(String text) {
+        return !text.isBlank();
+    }
 }
-

src/main/resources/de/hitec/nhplus/treatment/AllTreatmentView.fxml

@@ -28,6 +28,11 @@
                         minWidth="80.0"
                         text="Patient"
                 />
+                <TableColumn
+                        fx:id="columnNurseName"
+                        minWidth="80.0"
+                        text="Pflegekraft"
+                />
                 <TableColumn
                         fx:id="columnDate"
                         maxWidth="-1.0"
@@ -66,7 +71,11 @@
                     <ComboBox
                             fx:id="comboBoxPatientSelection"
                             prefWidth="200.0"
-                            onAction="#handleComboBox"
+                            onAction="#handleComboBoxPatient"
+                    />
+                    <ComboBox
+                            fx:id="comboBoxNurseSelection"
+                            prefWidth="200.0"
                     />
                     <Button
                             mnemonicParsing="false"

src/main/resources/de/hitec/nhplus/treatment/TreatmentModal.fxml

@@ -30,21 +30,33 @@
             <Label
                     GridPane.rowIndex="0"
                     GridPane.columnIndex="0"
-                    text="Vorname:"
+                    text="Pfleger:"
             />
             <Label
                     GridPane.rowIndex="0"
                     GridPane.columnIndex="1"
                     prefWidth="200"
+                    fx:id="labelNurseName" text="Pfleger Name"
+            />
+            <!-- Row 1 -->
+            <Label
+                    GridPane.rowIndex="1"
+                    GridPane.columnIndex="0"
+                    text="Vorname:"
+            />
+            <Label
+                    GridPane.rowIndex="1"
+                    GridPane.columnIndex="1"
+                    prefWidth="200"
                     fx:id="labelFirstName" text="Vorname"
             />
             <Label
-                    GridPane.rowIndex="0"
+                    GridPane.rowIndex="1"
                     GridPane.columnIndex="3"
                     text="Nachname:"
             />
             <Label
-                    GridPane.rowIndex="0"
+                    GridPane.rowIndex="1"
                     GridPane.columnIndex="4"
                     prefWidth="200"
                     fx:id="labelSurName"

src/main/resources/de/hitec/nhplus/treatment/database/Treatment.sql

@@ -2,10 +2,12 @@ CREATE TABLE treatment
 (
     id          INTEGER PRIMARY KEY AUTOINCREMENT,
     patientId   INTEGER NOT NULL,
+    nurseId     INTEGER NOT NULL ,
     date        TEXT    NOT NULL,
     begin       TEXT    NOT NULL,
     end         TEXT    NOT NULL,
     description TEXT    NOT NULL,
     remark      TEXT    NOT NULL,
-    FOREIGN KEY (patientId) REFERENCES patient (id) ON DELETE CASCADE
+    FOREIGN KEY (patientId) REFERENCES patient (id) ON DELETE CASCADE,
+    FOREIGN KEY (nurseId) REFERENCES nurse (id) ON DELETE SET NULL
 )