SQL-Funktionen zum Hinzufügen, Löschen und Bearbeiten von Artikeln

hinzugefügt. Erzeugung der einzelnen Tabs in eigene Klassen ausgelagert,
um die MainWindow-Klasse übersichtlicher zu gestalten.

src/de/katho/kBorrow/db/DbConnector.java

@@ -12,5 +12,8 @@ public interface DbConnector {
 	public boolean deleteUser(int id);
 	public int editUser(int pId, String pName, String pSurname);
 	public ArrayList<KArticle> getArticleList();
+	public int createArticle(String pName, String pDesc);
+	public boolean deleteArticle(int id);
+	public int editArticle(int pId, String pName, String pDesc);
 	
 }

src/de/katho/kBorrow/db/SqlConnector.java

@@ -42,4 +42,22 @@ public class SqlConnector implements DbConnector{
 		return null;
 	}
 
+	@Override
+	public int createArticle(String pName, String pDesc) {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+
+	@Override
+	public boolean deleteArticle(int id) {
+		// TODO Auto-generated method stub
+		return false;
+	}
+
+	@Override
+	public int editArticle(int pId, String pName, String pDesc) {
+		// TODO Auto-generated method stub
+		return 0;
+	}
+	
 }

src/de/katho/kBorrow/db/SqliteConnector.java

@@ -240,7 +240,6 @@ public class SqliteConnector implements DbConnector {
 		}
 	}
 
-	@Override
 	public ArrayList<KArticle> getArticleList() {
 		ArrayList<KArticle> artArr = new ArrayList<KArticle>();
 		
@@ -261,7 +260,6 @@ public class SqliteConnector implements DbConnector {
 		}
 	}
 
-	@Override
 	public int editUser(int pId, String pName, String pSurname) {
 		if(pName.isEmpty() && pSurname.isEmpty()) return 2;
 		try {
@@ -278,4 +276,51 @@ public class SqliteConnector implements DbConnector {
 		}
 	}
 
+	public int createArticle(String pName, String pDesc) {
+		if (pName.isEmpty()) return 2;
+		try {
+			Statement st = this.connection.createStatement();
+			String query = "INSERT INTO article (name, description) VALUES ('"+pName+"', '"+pDesc+"')";
+			
+			st.executeUpdate(query);
+			
+			return 0;
+			
+		} catch (SQLException e) {
+			e.printStackTrace();
+			return 1;
+		}
+	}
+
+	public boolean deleteArticle(int id) {
+		try {
+			Statement st = this.connection.createStatement();
+			String query = "DELETE FROM article WHERE id = '"+id+"'";
+			
+			st.executeUpdate(query);
+			
+			return true;
+		}
+		catch (SQLException e){
+			e.printStackTrace();
+			return false;
+		}
+	}
+
+	public int editArticle(int pId, String pName, String pDesc) {
+		if(pName.isEmpty()) return 2;
+		try {
+			Statement st = this.connection.createStatement();
+			String query = "UPDATE article SET name = '"+pName+"', description = '"+pDesc+"' WHERE id = '"+pId+"'";
+			
+			st.executeUpdate(query);
+			
+			return 0;
+		}
+		catch(SQLException e){
+			e.printStackTrace();
+			return 1;
+		}
+	}
+	
 }

src/de/katho/kBorrow/gui/ArticleTab.java

@@ -0,0 +1,192 @@
+package de.katho.kBorrow.gui;
+
+import java.awt.BorderLayout;
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+import javax.swing.BorderFactory;
+import javax.swing.JButton;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.JScrollPane;
+import javax.swing.JTable;
+import javax.swing.JTextArea;
+import javax.swing.JTextField;
+import javax.swing.UIManager;
+import javax.swing.border.TitledBorder;
+
+import de.katho.kBorrow.db.DbConnector;
+import de.katho.kBorrow.listener.ArticleDeleteTableButton;
+import de.katho.kBorrow.listener.ArticleEditTableButton;
+
+public class ArticleTab extends JPanel implements ActionListener {
+
+	private static final long serialVersionUID = -8511924597640457608L;
+	private ArticleTableModel articleTableModel;
+	private JTextArea textAreaArticleDescription;
+	private JTextField textFieldArticleName;
+	private JButton btnArticleSave;
+	private JButton btnArticleCancel;
+	private JLabel lblArticleStatus;
+	private boolean articleModeEdit;
+	private int articleEditId;
+
+	/**
+	 * Create the panel.
+	 */
+	public ArticleTab(final DbConnector dbCon) {	
+		super();
+		this.setLayout(null);		
+		
+		/*
+		 * Tabelle und drumherum
+		 */
+		this.articleTableModel = new ArticleTableModel(dbCon);
+		JTable articleTable = new JTable(articleTableModel);
+		ArticleDeleteTableButton articleDeleteTableButton = new ArticleDeleteTableButton("L<EFBFBD>schen", articleTable);
+		ArticleEditTableButton articleEditTableButton = new ArticleEditTableButton("Bearbeiten", articleTable, this);
+		
+		articleTable.getColumnModel().getColumn(4).setCellEditor(articleDeleteTableButton);
+		articleTable.getColumnModel().getColumn(4).setCellRenderer(articleDeleteTableButton);
+				
+		articleTable.getColumnModel().getColumn(3).setCellEditor(articleEditTableButton);
+		articleTable.getColumnModel().getColumn(3).setCellRenderer(articleEditTableButton);
+		
+		articleTable.setFillsViewportHeight(true);
+		
+		
+		/*
+		 * Panel Articlelist
+		 */
+		JPanel panelArticleList = new JPanel();
+		panelArticleList.setBorder(new TitledBorder(null, "Artikelliste", TitledBorder.LEADING, TitledBorder.TOP, null, null));
+		panelArticleList.setBounds(0, 0, 589, 275);
+		panelArticleList.setLayout(new BorderLayout(0, 0));
+		panelArticleList.add(new JScrollPane(articleTable));
+		
+		/*
+		 * Edit: Labels
+		 */
+		JLabel lblName = new JLabel("Name");
+		JLabel lblDescription = new JLabel("Beschreibung");
+		this.lblArticleStatus = new JLabel("");
+		lblName.setBounds(10, 30, 70, 20);
+		lblDescription.setBounds(10, 61, 70, 20);
+		this.lblArticleStatus.setBounds(90, 145, 250, 14);
+		
+		// Edit: Name-Textfield
+		this.textFieldArticleName = new JTextField();
+		this.textFieldArticleName.setBounds(90, 30, 250, 20);
+		this.textFieldArticleName.setColumns(10);
+		
+		//Edit: Desc-TextArea
+		this.textAreaArticleDescription = new JTextArea(5, 30);
+		this.textAreaArticleDescription.setFont(new Font("Tahoma", Font.PLAIN, 11));
+		this.textAreaArticleDescription.setLineWrap(true);
+		this.textAreaArticleDescription.setBounds(90, 59, 250, 80);
+		this.textAreaArticleDescription.setBorder(BorderFactory.createEtchedBorder());
+		
+		//Edit: Button-Save 
+		this.btnArticleSave = new JButton("Speichern");
+		this.btnArticleSave.addActionListener(this);
+		this.btnArticleSave.setBounds(490, 136, 89, 23);
+		
+		//Edit: Button-Cancel
+		this.btnArticleCancel = new JButton("Abbrechen");
+		this.btnArticleCancel.addActionListener(this);
+		this.btnArticleCancel.setBounds(490, 102, 89, 23);
+		
+		/*
+		 * PanelArticleEdit
+		 */		
+		JPanel panelArticleEdit = new JPanel();
+		panelArticleEdit.setBorder(new TitledBorder(UIManager.getBorder("TitledBorder.border"), "Artikel hinzuf\u00FCgen / bearbeiten", TitledBorder.LEADING, TitledBorder.TOP, null, new Color(0, 0, 0)));
+		panelArticleEdit.setBounds(0, 273, 589, 170);
+		panelArticleEdit.setLayout(null);
+		panelArticleEdit.add(lblName);
+		panelArticleEdit.add(lblDescription);
+		panelArticleEdit.add(textFieldArticleName);
+		panelArticleEdit.add(this.textAreaArticleDescription);
+		panelArticleEdit.add(this.btnArticleSave);
+		panelArticleEdit.add(this.btnArticleCancel);		
+		panelArticleEdit.add(lblArticleStatus);
+		
+		this.add(panelArticleList);
+		this.add(panelArticleEdit);
+	}
+
+	public void actionPerformed(ActionEvent e) {		
+		
+		/**
+		 * Aktionen f<>r den Button "Artikel speichern"
+		 */
+		if(e.getSource() == this.btnArticleSave){
+			if(this.articleModeEdit){
+				int re = this.articleTableModel.editArticle(this.articleEditId, this.textFieldArticleName.getText(), this.textAreaArticleDescription.getText());
+				
+				switch(re){
+				case 0:
+					this.lblArticleStatus.setText("Artikel-ID \""+this.articleEditId+"\" erfolgreich bearbeitet.");
+					this.textFieldArticleName.setText("");
+					this.textAreaArticleDescription.setText("");
+					break;
+					
+				case 1:
+					this.lblArticleStatus.setText("SQL-Fehler. Artikel konnte nicht bearbeitet werden.");
+					this.textFieldArticleName.setText("");
+					this.textAreaArticleDescription.setText("");
+					break;
+					
+				case 2:
+					this.lblArticleStatus.setText("Artikelname muss ausgef<65>llt sein.");
+					break;
+					
+				}
+				
+				this.articleModeEdit = false;
+				this.articleEditId = -1;
+			}
+			
+			else {
+				int re = this.articleTableModel.createArticle(this.textFieldArticleName.getText(), this.textAreaArticleDescription.getText());
+				
+				switch(re){
+				case 0:
+					this.lblArticleStatus.setText("Artikel \""+this.textFieldArticleName.getText()+"\" erfolgreich hinzugef<65>gt.");
+					this.textFieldArticleName.setText("");
+					this.textAreaArticleDescription.setText("");
+					break;
+					
+				case 1:
+					this.lblArticleStatus.setText("SQL-Fehler. Artikel konnte nicht erstellt werden.");
+					this.textFieldArticleName.setText("");
+					this.textAreaArticleDescription.setText("");
+					break;
+				
+				case 2:
+					this.lblArticleStatus.setText("Es muss ein Artikelname vergeben werden");
+					break;
+				}
+			}
+		}
+				
+		/**
+		 * Aktionen f<>r den Button "Artikel abbrechen"
+		 */
+		if(e.getSource() == this.btnArticleCancel){
+			this.articleModeEdit = false;
+			this.textFieldArticleName.setText("");
+			this.textAreaArticleDescription.setText("");
+		}
+	}
+
+	public void setModeEditArticle(int articleId, String articleName, String articleDescription) {
+		this.articleModeEdit = true;
+		this.articleEditId = articleId;
+		this.textFieldArticleName.setText(articleName);
+		this.textAreaArticleDescription.setText(articleDescription);
+	}
+
+}

src/de/katho/kBorrow/gui/ArticleTableModel.java

@@ -37,12 +37,12 @@ public class ArticleTableModel extends AbstractTableModel {
 		return this.header.length;
 	}
 
-	@Override
+	
 	public int getRowCount() {
 		return this.data.size();
 	}
 
-	@Override
+	
 	public Object getValueAt(int pRow, int pCol) {
 		switch(pCol){
 		case 0:
@@ -64,31 +64,105 @@ public class ArticleTableModel extends AbstractTableModel {
 		return false;
 	}
 
+	/**
+	 * Gibt die ID der gegebenen Tabellenzeile aus.
+	 * 
+	 * @param row	Tabellenzeile, zu der die ID ausgegeben werden soll.
+	 * @return		Artikel-ID als int.
+	 */
 	public int getArticleId(int row) {
 		return this.data.get(row).getId();
 	}
 	
+	/**
+	 * Gibt den Artikelnamen der gegebenen Tabellenzeile aus.
+	 * 
+	 * @param pRow	Tabellenzeile, zu der der Name ausgegeben werden soll.
+	 * @return		Artikelname als String
+	 */
 	public String getArticleName(int pRow){
 		return this.data.get(pRow).getName();
 	}
 	
+	/**
+	 * Gibt die Artikelbeschreibung der gegebenen Tabellenzeile aus.
+	 * 
+	 * @param pRow	Tabellenzeile, zu der die Beschreibung ausgegeben werden soll
+	 * @return		Artikelbeschreibung als String.
+	 */
 	public String getArticleDescription(int pRow){
 		return this.data.get(pRow).getDescription();
 	}
 
-	public void deleteArticle(int id) {
+	/**
-		// TODO Auto-generated method stub
+	 * L<>scht den Artikel mit der gegebenen ID in der Datenbank und aktualisiert die Tabelle.
+	 * 
+	 * @param id	ID des Artikels, der gel<65>scht werden soll.
+	 * @return		true, wenn der Artikel erfolgreich gel<65>scht wurde. false, wenn ein Fehler aufgetreten ist.
+	 */
+	public boolean deleteArticle(int id) {
+		if(this.dbCon.deleteArticle(id)){
+			int row = this.getRowFromId(id);
+			this.data.remove(row);
+			this.fireTableRowsDeleted(row, row);
 			
+			return true;
+		}
+		
+		return false;
+	}
+	/**
+	 * Gibt die entsprechende Zeile in der Tabelle f<>r ein Objekt mit der gegebenen ID zur<75>ck.
+	 * 
+	 * @param id	ID, f<>r die die Tabellenzeile herausgesucht werden soll
+	 * @return		Zeile in der Tabelle. -1, wenn die ID nicht vorhanden ist.
+	 */
+	private int getRowFromId(int id) {
+		for (KArticle elem : this.data){
+			if(elem.getId() == id) return data.indexOf(elem);
+		}
+		return -1;
 	}
 
+	/**
+	 * Erzeugt einen neuen Artikel in der Datenbank und aktualisiert die Tabelle
+	 * 
+	 * @param pName Name des Artikels
+	 * @param pDesc Beschreibung des Artikels
+	 * @return  0: Artikel erfolgreich erzeugt
+	 * 			1: SQL-Fehler beim Erzeugen
+	 * 			2: Feld "Name" leer
+	 */
 	public int createArticle(String pName, String pDesc) {
-		// TODO Auto-generated method stub
+		int status = this.dbCon.createArticle(pName, pDesc);
-		return 0;
+		
+		updateTable();
+		
+		return status;
 	}
 
+	/**
+	 * <20>ndert einen Artikel in der Datenbank und aktualisiert die Tabelle
+	 * 
+	 * @param pId	Id des Artikels, der ge<67>ndert werden soll 
+	 * @param pName	(Neuer) Name des Artikels
+	 * @param pDesc	(Neue) Beschreibung des Artikels
+	 * @return	0: Artikel erfolgreich ge<67>ndert
+	 * 			1: SQL-Fehler beim Erzeugen
+	 * 			2: Artikelname ist leer
+	 */
 	public int editArticle(int pId, String pName, String pDesc) {
-		// TODO Auto-generated method stub
+		int status = this.dbCon.editArticle(pId, pName, pDesc);
-		return 0;
+		
+		if(status == 0){
+			int row = this.getRowFromId(pId);
+			
+			this.data.get(row).setName(pName);
+			this.data.get(row).setDescription(pDesc);
+			this.fireTableRowsUpdated(row, row);
+		}
+		
+		return status;
 	}
 
 }

src/de/katho/kBorrow/gui/MainWindow.java

@@ -1,6 +1,5 @@
 package de.katho.kBorrow.gui;
 
-import javax.swing.BorderFactory;
 import javax.swing.JFrame;
 import javax.swing.JTabbedPane;
 import javax.swing.UIManager;
@@ -8,62 +7,17 @@ import javax.swing.UnsupportedLookAndFeelException;
 
 import java.awt.BorderLayout;
 
-import javax.swing.JPanel;
-import javax.swing.JScrollPane;
-import javax.swing.JTextField;
-import javax.swing.border.TitledBorder;
-import javax.swing.JLabel;
-import javax.swing.JButton;
-
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-
 import de.katho.kBorrow.db.DbConnector;
-import de.katho.kBorrow.listener.ArticleDeleteTableButton;
-import de.katho.kBorrow.listener.ArticleEditTableButton;
-import de.katho.kBorrow.listener.UserDeleteTableButton;
-import de.katho.kBorrow.listener.UserEditTableButton;
 
-import javax.swing.JTable;
 
-import java.awt.Color;
+public class MainWindow {
-
-import javax.swing.JTextArea;
-
-import java.awt.Font;
-
-public class MainWindow implements ActionListener {
 
 	private DbConnector dbCon;
-	private boolean userModeEdit = false;
+
-	private boolean articleModeEdit = false;
-	private int userEditId;
-	private int articleEditId;
 	
 	private JFrame frame;
 	private JTabbedPane tabbedPane;
-	private JPanel panelUserEdit;
+
-	private JLabel lblUserName;
-	private JLabel lblUserSurname;
-	private JTextField textFieldUserName;
-	private JTextField textFieldUserSurname;
-	private JButton btnUserSave;
-	private JLabel lblUserStatus;
-	private JTable userTable;
-	private UserTableModel userTableModel;
-	private ArticleTableModel articleTableModel;
-	private JScrollPane scrollUserList;
-	private JPanel panelUserList;
-	private JButton btnUserCancel;
-	private JPanel panelArticleList;
-	private JPanel panelArticleEdit;
-	private JScrollPane scrollArticleList;
-	private JTable articleTable;
-	private JTextField textFieldArticleName;
-	private JButton btnArticleSave;
-	private JButton btnArticleCancel;
-	private JTextArea textAreaArticleDescription;
-	private JLabel lblArticleStatus;
 	
 
 	/**
@@ -88,291 +42,15 @@ public class MainWindow implements ActionListener {
 	 */
 	private void initialize() throws ClassNotFoundException, InstantiationException, IllegalAccessException, UnsupportedLookAndFeelException {
 		this.frame = new JFrame();
-		frame.setResizable(false);
+		this.frame.setResizable(false);
 		this.frame.setBounds(100, 100, 600, 500);
 		this.frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 		UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
 		
 		this.tabbedPane = new JTabbedPane(JTabbedPane.TOP);
-		this.frame.getContentPane().add(tabbedPane, BorderLayout.CENTER);
+		this.frame.getContentPane().add(this.tabbedPane, BorderLayout.CENTER);
 		
-		this.initArticleTab();
+		this.tabbedPane.addTab("Artikel verwalten", new ArticleTab(this.dbCon));
-		this.initUserTab();
+		this.tabbedPane.addTab("Benutzer verwalten", new UserTab(this.dbCon));
-	}
-	
-	private void initArticleTab() {
-		JPanel panelArticle = new JPanel();
-		articleTableModel = new ArticleTableModel(this.dbCon);
-		articleTable = new JTable(articleTableModel);
-		panelArticleList = new JPanel();
-		
-		ArticleDeleteTableButton articleDeleteTableButton = new ArticleDeleteTableButton("L<EFBFBD>schen", this.articleTable);
-		articleTable.getColumnModel().getColumn(4).setCellEditor(articleDeleteTableButton);
-		articleTable.getColumnModel().getColumn(4).setCellRenderer(articleDeleteTableButton);
-		
-		ArticleEditTableButton articleEditTableButton = new ArticleEditTableButton("Bearbeiten", this.articleTable, this);
-		articleTable.getColumnModel().getColumn(3).setCellEditor(articleEditTableButton);
-		articleTable.getColumnModel().getColumn(3).setCellRenderer(articleEditTableButton);
-		
-		this.tabbedPane.addTab("Artikel verwalten", null, panelArticle, null);
-		panelArticle.setLayout(null);
-		
-		panelArticleList.setBorder(new TitledBorder(null, "Artikelliste", TitledBorder.LEADING, TitledBorder.TOP, null, null));
-		panelArticleList.setBounds(0, 0, 589, 275);
-		panelArticle.add(panelArticleList);
-		panelArticleList.setLayout(new BorderLayout(0, 0));
-		
-		articleTable.setFillsViewportHeight(true);
-		scrollArticleList = new JScrollPane(articleTable);
-		panelArticleList.add(scrollArticleList);
-		
-		panelArticleEdit = new JPanel();
-		panelArticleEdit.setBorder(new TitledBorder(UIManager.getBorder("TitledBorder.border"), "Artikel hinzuf\u00FCgen / bearbeiten", TitledBorder.LEADING, TitledBorder.TOP, null, new Color(0, 0, 0)));
-		panelArticleEdit.setBounds(0, 273, 589, 170);
-		panelArticle.add(panelArticleEdit);
-		panelArticleEdit.setLayout(null);
-		
-		JLabel lblNewLabel = new JLabel("Name");
-		lblNewLabel.setBounds(10, 30, 70, 20);
-		panelArticleEdit.add(lblNewLabel);
-		
-		JLabel lblBeschreibung = new JLabel("Beschreibung");
-		lblBeschreibung.setBounds(10, 61, 70, 20);
-		panelArticleEdit.add(lblBeschreibung);
-		
-		textFieldArticleName = new JTextField();
-		textFieldArticleName.setBounds(90, 30, 250, 20);
-		panelArticleEdit.add(textFieldArticleName);
-		textFieldArticleName.setColumns(10);
-		
-		this.textAreaArticleDescription = new JTextArea(5, 30);
-		this.textAreaArticleDescription.setFont(new Font("Tahoma", Font.PLAIN, 11));
-		this.textAreaArticleDescription.setLineWrap(true);
-		this.textAreaArticleDescription.setBounds(90, 59, 250, 80);
-		this.textAreaArticleDescription.setBorder(BorderFactory.createEtchedBorder());
-		panelArticleEdit.add(this.textAreaArticleDescription);
-		
-		this.btnArticleSave = new JButton("Speichern");
-		this.btnArticleSave.addActionListener(this);
-		this.btnArticleSave.setBounds(490, 136, 89, 23);
-		panelArticleEdit.add(this.btnArticleSave);
-		
-		this.btnArticleCancel = new JButton("Abbrechen");
-		this.btnArticleCancel.addActionListener(this);
-		this.btnArticleCancel.setBounds(490, 102, 89, 23);
-		panelArticleEdit.add(this.btnArticleCancel);
-		
-		this.lblArticleStatus = new JLabel("");
-		lblArticleStatus.setBounds(90, 145, 46, 14);
-		panelArticleEdit.add(lblArticleStatus);
-		
-			
-				
-	}
-
-	private void initUserTab(){
-		JPanel panelUser = new JPanel();
-		this.tabbedPane.addTab("Benutzer verwalten", null, panelUser, null);
-		
-		panelUser.setLayout(null);
-		
-		panelUserList = new JPanel();
-		panelUserList.setBounds(0, 0, 589, 320);
-		panelUserList.setBorder(new TitledBorder(UIManager.getBorder("TitledBorder.border"), "Benutzerliste", TitledBorder.LEADING, TitledBorder.TOP, null, null));
-		panelUser.add(panelUserList);
-		panelUserList.setLayout(new BorderLayout(0, 0));
-		
-		userTableModel = new UserTableModel(this.dbCon);
-		userTable = new JTable(userTableModel);
-		userTable.setFillsViewportHeight(true);
-	
-		UserDeleteTableButton userDeleteTableButton = new UserDeleteTableButton("L<EFBFBD>schen", this.userTable);
-		userTable.getColumnModel().getColumn(4).setCellEditor(userDeleteTableButton);
-		userTable.getColumnModel().getColumn(4).setCellRenderer(userDeleteTableButton);
-		
-		UserEditTableButton userEditTableButton = new UserEditTableButton("Bearbeiten", this.userTable, this);
-		userTable.getColumnModel().getColumn(3).setCellEditor(userEditTableButton);
-		userTable.getColumnModel().getColumn(3).setCellRenderer(userEditTableButton);
-				
-		scrollUserList = new JScrollPane(userTable);
-		panelUserList.add(scrollUserList);
-		scrollUserList.setViewportBorder(null);
-		
-		// User-Edit-Pane
-		panelUserEdit = new JPanel();
-		panelUserEdit.setBounds(0, 331, 589, 111);
-		panelUserEdit.setBorder(new TitledBorder(UIManager.getBorder("TitledBorder.border"), "Benutzer hinzuf\u00FCgen / bearbeiten", TitledBorder.LEADING, TitledBorder.TOP, null, null));
-		panelUserEdit.setLayout(null);
-		panelUser.add(this.panelUserEdit);
-		
-		lblUserName = new JLabel("Vorname");
-		lblUserSurname = new JLabel("Nachname");
-		lblUserStatus = new JLabel("");
-		textFieldUserName = new JTextField();
-		textFieldUserSurname= new JTextField();
-		btnUserSave = new JButton("Speichern");
-		btnUserCancel = new JButton("Abbrechen");
-		
-		lblUserName.setBounds(10, 30, 70, 20);
-		textFieldUserName.setBounds(90, 30, 120, 20);
-		textFieldUserName.setColumns(10);
-		lblUserSurname.setBounds(10, 61, 70, 20);
-		textFieldUserSurname.setBounds(90, 61, 121, 20);
-		textFieldUserSurname.setColumns(10);
-		btnUserSave.addActionListener(this);
-		btnUserSave.setBounds(479, 61, 100, 20);
-		btnUserCancel.setBounds(479, 30, 100, 20);
-		btnUserCancel.addActionListener(this);
-		lblUserStatus.setBounds(6, 89, 413, 14);
-		
-		panelUserEdit.add(this.lblUserName);
-		panelUserEdit.add(this.textFieldUserName);
-		panelUserEdit.add(this.lblUserSurname);
-		panelUserEdit.add(this.textFieldUserSurname);
-		panelUserEdit.add(this.textFieldUserSurname);
-		panelUserEdit.add(this.btnUserSave);
-		panelUserEdit.add(this.lblUserStatus);		
-		panelUserEdit.add(this.btnUserCancel);
-	}
-	
-	public void setModeEditUser(int pId, String pName, String pSurname){
-		this.userModeEdit = true;
-		this.userEditId = pId;
-		this.textFieldUserName.setText(pName);
-		this.textFieldUserSurname.setText(pSurname);		
-	}
-	
-	public void setModeEditArticle(int articleId, String articleName, String articleDescription) {
-		this.articleModeEdit = true;
-		this.articleEditId = articleId;
-		this.textFieldArticleName.setText(articleName);
-		this.textAreaArticleDescription.setText(articleDescription);
-	}
-
-	@Override
-	public void actionPerformed(ActionEvent e) {
-		
-		/**
-		 * Aktionen f<>r den Button "Benutzer speichern"
-		 */
-		if(e.getSource() == this.btnUserSave){
-			if(this.userModeEdit){
-				int re = this.userTableModel.editUser(this.userEditId, this.textFieldUserName.getText(), this.textFieldUserSurname.getText());
-				
-				switch(re){
-				case 0:
-					this.lblUserStatus.setText("Benutzer-ID \""+this.userEditId+"\" erfolgreich bearbeitet.");
-					this.textFieldUserName.setText("");
-					this.textFieldUserSurname.setText("");
-					break;
-					
-				case 1:
-					this.lblUserStatus.setText("SQL-Fehler. Benutzer konnte nicht bearbeitet werden.");
-					this.textFieldUserName.setText("");
-					this.textFieldUserSurname.setText("");
-					break;
-					
-				case 2:
-					this.lblUserStatus.setText("Entweder Vor- oder Nachname m<>ssen ausgef<65>llt sein.");
-					break;
-					
-				}
-				
-				this.userModeEdit = false;
-				this.userEditId = -1;
-			}
-			else {
-				int re = this.userTableModel.createUser(this.textFieldUserName.getText(), this.textFieldUserSurname.getText());
-				
-				switch (re){
-				case 0:
-					this.lblUserStatus.setText("Benutzer \""+this.textFieldUserName.getText()+" "+this.textFieldUserSurname.getText()+"\" erfolgreich hinzugef<65>gt.");
-					this.textFieldUserName.setText("");
-					this.textFieldUserSurname.setText("");
-					break;
-				
-				case 1:
-					this.lblUserStatus.setText("SQL-Fehler. Benutzer konnte nicht erstellt werden.");
-					this.textFieldUserName.setText("");
-					this.textFieldUserSurname.setText("");
-					break;
-				
-				case 2:
-					this.lblUserStatus.setText("Entweder Vor- oder Nachname m<>ssen ausgef<65>llt sein.");
-					break;
-				}
-			}
-		}
-		
-		/**
-		 * Aktionen f<>r den Button "Artikel speichern"
-		 */
-		if(e.getSource() == this.btnArticleSave){
-			if(this.userModeEdit){
-				int re = this.articleTableModel.editArticle(this.articleEditId, this.textFieldArticleName.getText(), this.textAreaArticleDescription.getText());
-				
-				switch(re){
-				case 0:
-					this.lblArticleStatus.setText("Artikel-ID \""+this.articleEditId+"\" erfolgreich bearbeitet.");
-					this.textFieldArticleName.setText("");
-					this.textAreaArticleDescription.setText("");
-					break;
-					
-				case 1:
-					this.lblArticleStatus.setText("SQL-Fehler. Artikel konnte nicht bearbeitet werden.");
-					this.textFieldArticleName.setText("");
-					this.textAreaArticleDescription.setText("");
-					break;
-					
-				case 2:
-					this.lblArticleStatus.setText("Artikelname muss ausgef<65>llt sein.");
-					break;
-					
-				}
-				
-				this.articleModeEdit = false;
-				this.articleEditId = -1;
-			}
-			
-			else {
-				int re = this.articleTableModel.createArticle(this.textFieldArticleName.getText(), this.textAreaArticleDescription.getText());
-				
-				switch(re){
-				case 0:
-					this.lblArticleStatus.setText("Artikel \""+this.textFieldArticleName.getText()+"\" erfolgreich hinzugef<65>gt.");
-					this.textFieldArticleName.setText("");
-					this.textAreaArticleDescription.setText("");
-					break;
-					
-				case 1:
-					this.lblArticleStatus.setText("SQL-Fehler. Artikel konnte nicht erstellt werden.");
-					this.textFieldArticleName.setText("");
-					this.textAreaArticleDescription.setText("");
-					break;
-				
-				case 2:
-					this.lblArticleStatus.setText("Es muss ein Artikelname vergeben werden");
-					break;
-				}
-			}
-		}
-		
-		/**
-		 * Aktionen f<>r den Button "Benutzer abbrechen"
-		 */
-		if(e.getSource() == this.btnUserCancel){
-			this.userModeEdit = false;
-			this.textFieldUserName.setText("");
-			this.textFieldUserSurname.setText("");
-		}
-		
-		/**
-		 * Aktionen f<>r den Button "Artikel abbrechen"
-		 */
-		if(e.getSource() == this.btnArticleCancel){
-			this.articleModeEdit = false;
-			this.textFieldArticleName.setText("");
-			this.textAreaArticleDescription.setText("");
-		}
 	}
 }

src/de/katho/kBorrow/gui/UserTab.java

@@ -0,0 +1,166 @@
+package de.katho.kBorrow.gui;
+
+import java.awt.BorderLayout;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+
+import javax.swing.JButton;
+import javax.swing.JLabel;
+import javax.swing.JPanel;
+import javax.swing.JScrollPane;
+import javax.swing.JTable;
+import javax.swing.JTextField;
+import javax.swing.UIManager;
+import javax.swing.border.TitledBorder;
+
+import de.katho.kBorrow.db.DbConnector;
+import de.katho.kBorrow.listener.UserDeleteTableButton;
+import de.katho.kBorrow.listener.UserEditTableButton;
+
+public class UserTab extends JPanel implements ActionListener {
+
+	private static final long serialVersionUID = -319340262589243978L;
+	private JLabel lblUserStatus;
+	private JTextField textFieldUserName;
+	private JTextField textFieldUserSurname;
+	private JButton btnUserSave;
+	private JButton btnUserCancel;
+	private boolean userModeEdit;
+	private int userEditId;
+	private UserTableModel userTableModel;
+
+	public UserTab(final DbConnector dbCon){
+		super();
+		this.setLayout(null);
+		
+		//Tabelle und drumherum
+		this.userTableModel = new UserTableModel(dbCon);
+		JTable userTable = new JTable(userTableModel);
+		UserDeleteTableButton userDeleteTableButton = new UserDeleteTableButton("L<EFBFBD>schen", userTable);
+		userTable.getColumnModel().getColumn(4).setCellEditor(userDeleteTableButton);
+		userTable.getColumnModel().getColumn(4).setCellRenderer(userDeleteTableButton);
+		
+		UserEditTableButton userEditTableButton = new UserEditTableButton("Bearbeiten", userTable, this);
+		userTable.getColumnModel().getColumn(3).setCellEditor(userEditTableButton);
+		userTable.getColumnModel().getColumn(3).setCellRenderer(userEditTableButton);
+		
+		userTable.setFillsViewportHeight(true);
+		
+		//Panel Userlist
+		JPanel panelUserList = new JPanel();
+		panelUserList.setBounds(0, 0, 589, 320);
+		panelUserList.setBorder(new TitledBorder(UIManager.getBorder("TitledBorder.border"), "Benutzerliste", TitledBorder.LEADING, TitledBorder.TOP, null, null));
+		panelUserList.setLayout(new BorderLayout(0, 0));
+		panelUserList.add(new JScrollPane(userTable));
+	
+		// Edit: Labels
+		JLabel lblUserName = new JLabel("Vorname");
+		JLabel lblUserSurname = new JLabel("Nachname");
+		this.lblUserStatus = new JLabel("");
+		lblUserName.setBounds(10, 30, 70, 20);
+		lblUserSurname.setBounds(10, 61, 70, 20);
+		lblUserStatus.setBounds(6, 89, 413, 14);
+		
+		//Edit: Textfields
+		textFieldUserName = new JTextField();
+		textFieldUserSurname= new JTextField();
+		textFieldUserName.setBounds(90, 30, 120, 20);
+		textFieldUserName.setColumns(10);
+		textFieldUserSurname.setBounds(90, 61, 121, 20);
+		textFieldUserSurname.setColumns(10);
+		
+		// Edit: Buttons
+		btnUserSave = new JButton("Speichern");
+		btnUserCancel = new JButton("Abbrechen");
+		btnUserSave.addActionListener(this);
+		btnUserSave.setBounds(479, 61, 100, 20);
+		btnUserCancel.setBounds(479, 30, 100, 20);
+		btnUserCancel.addActionListener(this);
+		
+		// User-Edit-Pane
+		JPanel panelUserEdit = new JPanel();
+		panelUserEdit.setBounds(0, 331, 589, 111);
+		panelUserEdit.setBorder(new TitledBorder(UIManager.getBorder("TitledBorder.border"), "Benutzer hinzuf\u00FCgen / bearbeiten", TitledBorder.LEADING, TitledBorder.TOP, null, null));
+		panelUserEdit.setLayout(null);
+		panelUserEdit.add(lblUserName);
+		panelUserEdit.add(this.textFieldUserName);
+		panelUserEdit.add(lblUserSurname);
+		panelUserEdit.add(this.textFieldUserSurname);
+		panelUserEdit.add(this.textFieldUserSurname);
+		panelUserEdit.add(this.btnUserSave);
+		panelUserEdit.add(this.lblUserStatus);		
+		panelUserEdit.add(this.btnUserCancel);
+		
+		this.add(panelUserList);
+		this.add(panelUserEdit);
+	}
+
+	@Override
+	public void actionPerformed(ActionEvent e) {
+		if(e.getSource() == this.btnUserSave){
+			if(this.userModeEdit){
+				int re = this.userTableModel.editUser(this.userEditId, this.textFieldUserName.getText(), this.textFieldUserSurname.getText());
+				
+				switch(re){
+				case 0:
+					this.lblUserStatus.setText("Benutzer-ID \""+this.userEditId+"\" erfolgreich bearbeitet.");
+					this.textFieldUserName.setText("");
+					this.textFieldUserSurname.setText("");
+					break;
+					
+				case 1:
+					this.lblUserStatus.setText("SQL-Fehler. Benutzer konnte nicht bearbeitet werden.");
+					this.textFieldUserName.setText("");
+					this.textFieldUserSurname.setText("");
+					break;
+					
+				case 2:
+					this.lblUserStatus.setText("Entweder Vor- oder Nachname m<>ssen ausgef<65>llt sein.");
+					break;
+					
+				}
+				
+				this.userModeEdit = false;
+				this.userEditId = -1;
+			}
+			else {
+				int re = this.userTableModel.createUser(this.textFieldUserName.getText(), this.textFieldUserSurname.getText());
+				
+				switch (re){
+				case 0:
+					this.lblUserStatus.setText("Benutzer \""+this.textFieldUserName.getText()+" "+this.textFieldUserSurname.getText()+"\" erfolgreich hinzugef<65>gt.");
+					this.textFieldUserName.setText("");
+					this.textFieldUserSurname.setText("");
+					break;
+				
+				case 1:
+					this.lblUserStatus.setText("SQL-Fehler. Benutzer konnte nicht erstellt werden.");
+					this.textFieldUserName.setText("");
+					this.textFieldUserSurname.setText("");
+					break;
+				
+				case 2:
+					this.lblUserStatus.setText("Entweder Vor- oder Nachname m<>ssen ausgef<65>llt sein.");
+					break;
+				}
+			}
+		}
+		
+		/**
+		 * Aktionen f<>r den Button "Benutzer abbrechen"
+		 */
+		if(e.getSource() == this.btnUserCancel){
+			this.userModeEdit = false;
+			this.textFieldUserName.setText("");
+			this.textFieldUserSurname.setText("");
+		}
+		
+	}
+
+	public void setModeEditUser(int pId, String pName, String pSurname){
+		this.userModeEdit = true;
+		this.userEditId = pId;
+		this.textFieldUserName.setText(pName);
+		this.textFieldUserSurname.setText(pSurname);		
+	}
+}

src/de/katho/kBorrow/listener/ArticleEditTableButton.java

@@ -5,8 +5,8 @@ import java.awt.event.ActionListener;
 
 import javax.swing.JTable;
 
+import de.katho.kBorrow.gui.ArticleTab;
 import de.katho.kBorrow.gui.ArticleTableModel;
-import de.katho.kBorrow.gui.MainWindow;
 
 public class ArticleEditTableButton extends TableButton {
 
@@ -15,7 +15,7 @@ public class ArticleEditTableButton extends TableButton {
 	 */
 	private static final long serialVersionUID = -5902626427691636902L;
 
-	public ArticleEditTableButton(String pLabel, JTable pTable, final MainWindow pMainWindow) {
+	public ArticleEditTableButton(String pLabel, JTable pTable, final ArticleTab articleTab) {
 		super(pLabel, pTable);
 		
 		this.buttonE.addActionListener(new ActionListener(){
@@ -25,7 +25,7 @@ public class ArticleEditTableButton extends TableButton {
 				ArticleTableModel model = (ArticleTableModel) table.getModel();
 				int row = table.getSelectedRow();
 				
-				pMainWindow.setModeEditArticle(model.getArticleId(row), model.getArticleName(row), model.getArticleDescription(row));
+				articleTab.setModeEditArticle(model.getArticleId(row), model.getArticleName(row), model.getArticleDescription(row));
 			}
 		});
 	}

src/de/katho/kBorrow/listener/UserEditTableButton.java

@@ -5,7 +5,7 @@ import java.awt.event.ActionListener;
 
 import javax.swing.JTable;
 
-import de.katho.kBorrow.gui.MainWindow;
+import de.katho.kBorrow.gui.UserTab;
 import de.katho.kBorrow.gui.UserTableModel;
 
 public class UserEditTableButton extends TableButton {
@@ -15,7 +15,7 @@ public class UserEditTableButton extends TableButton {
 	 */
 	private static final long serialVersionUID = -886584066497429394L;
 	
-	public UserEditTableButton(String pLabel, JTable pTable, final MainWindow pMainWindow){
+	public UserEditTableButton(String pLabel, JTable pTable, final UserTab pPanel){
 		super(pLabel, pTable);
 					
 		this.buttonE.addActionListener(new ActionListener(){
@@ -25,7 +25,7 @@ public class UserEditTableButton extends TableButton {
 				UserTableModel model = (UserTableModel) table.getModel();
 				int row = table.getSelectedRow();
 				
-				pMainWindow.setModeEditUser(model.getUserId(row), model.getUserName(row), model.getUserSurname(row));	
+				pPanel.setModeEditUser(model.getUserId(row), model.getUserName(row), model.getUserSurname(row));	
 			}
 		});