JPA - Persistence.xml

Pessoal tenhu essa persistence:

<?xml version="1.0" encoding="UTF-8"?> oracle.toplink.essentials.PersistenceProvider cadastros.Banco

obs: Ja foi Criada automaticamente.

Esse Codigo:
package cadastros;

import java.awt.EventQueue;
import java.beans.Beans;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.RollbackException;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class cad_banco extends JPanel {

public cad_banco() {
    initComponents();
    if (!Beans.isDesignTime()) {
        entityManager.getTransaction().begin();
    }
}

/** This method is called from within the constructor to
 * initialize the form.
 * WARNING: Do NOT modify this code. The content of this method is
 * always regenerated by the Form Editor.
 */
@SuppressWarnings("unchecked")
// <editor-fold defaultstate="collapsed" desc="Generated Code">                          
private void initComponents() {
    bindingGroup = new org.jdesktop.beansbinding.BindingGroup();

    entityManager = java.beans.Beans.isDesignTime() ? null : javax.persistence.Persistence.createEntityManagerFactory("sobek2PU").createEntityManager();
    query = java.beans.Beans.isDesignTime() ? null : entityManager.createQuery("SELECT b FROM Banco b");
    list = java.beans.Beans.isDesignTime() ? java.util.Collections.emptyList() : org.jdesktop.observablecollections.ObservableCollections.observableList(query.getResultList());
    masterScrollPane = new javax.swing.JScrollPane();
    masterTable = new javax.swing.JTable();
    nomeBancoLabel = new javax.swing.JLabel();
    agenciaBancoLabel = new javax.swing.JLabel();
    contaBancoLabel = new javax.swing.JLabel();
    foneBancoLabel = new javax.swing.JLabel();
    nomeBancoField = new javax.swing.JTextField();
    agenciaBancoField = new javax.swing.JTextField();
    contaBancoField = new javax.swing.JTextField();
    foneBancoField = new javax.swing.JTextField();
    saveButton = new javax.swing.JButton();
    refreshButton = new javax.swing.JButton();
    newButton = new javax.swing.JButton();
    deleteButton = new javax.swing.JButton();

    FormListener formListener = new FormListener();

    org.jdesktop.swingbinding.JTableBinding jTableBinding = org.jdesktop.swingbinding.SwingBindings.createJTableBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, list, masterTable);
    org.jdesktop.swingbinding.JTableBinding.ColumnBinding columnBinding = jTableBinding.addColumnBinding(org.jdesktop.beansbinding.ELProperty.create("${nomeBanco}"));
    columnBinding.setColumnName("Nome Banco");
    columnBinding.setColumnClass(String.class);
    columnBinding = jTableBinding.addColumnBinding(org.jdesktop.beansbinding.ELProperty.create("${agenciaBanco}"));
    columnBinding.setColumnName("Agencia Banco");
    columnBinding.setColumnClass(Integer.class);
    columnBinding = jTableBinding.addColumnBinding(org.jdesktop.beansbinding.ELProperty.create("${contaBanco}"));
    columnBinding.setColumnName("Conta Banco");
    columnBinding.setColumnClass(Integer.class);
    columnBinding = jTableBinding.addColumnBinding(org.jdesktop.beansbinding.ELProperty.create("${foneBanco}"));
    columnBinding.setColumnName("Fone Banco");
    columnBinding.setColumnClass(String.class);
    bindingGroup.addBinding(jTableBinding);

    masterScrollPane.setViewportView(masterTable);

    nomeBancoLabel.setText("Nome Banco:");

    agenciaBancoLabel.setText("Agencia Banco:");

    contaBancoLabel.setText("Conta Banco:");

    foneBancoLabel.setText("Fone Banco:");

    org.jdesktop.beansbinding.Binding binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement.nomeBanco}"), nomeBancoField, org.jdesktop.beansbinding.BeanProperty.create("text"));
    binding.setSourceUnreadableValue(null);
    bindingGroup.addBinding(binding);
    binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement != null}"), nomeBancoField, org.jdesktop.beansbinding.BeanProperty.create("enabled"));
    bindingGroup.addBinding(binding);

    binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement.agenciaBanco}"), agenciaBancoField, org.jdesktop.beansbinding.BeanProperty.create("text"));
    binding.setSourceUnreadableValue(null);
    bindingGroup.addBinding(binding);
    binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement != null}"), agenciaBancoField, org.jdesktop.beansbinding.BeanProperty.create("enabled"));
    bindingGroup.addBinding(binding);

    binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement.contaBanco}"), contaBancoField, org.jdesktop.beansbinding.BeanProperty.create("text"));
    binding.setSourceUnreadableValue(null);
    bindingGroup.addBinding(binding);
    binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement != null}"), contaBancoField, org.jdesktop.beansbinding.BeanProperty.create("enabled"));
    bindingGroup.addBinding(binding);

    binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ_WRITE, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement.foneBanco}"), foneBancoField, org.jdesktop.beansbinding.BeanProperty.create("text"));
    binding.setSourceUnreadableValue(null);
    bindingGroup.addBinding(binding);
    binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement != null}"), foneBancoField, org.jdesktop.beansbinding.BeanProperty.create("enabled"));
    bindingGroup.addBinding(binding);

    saveButton.setText("Save");
    saveButton.addActionListener(formListener);

    refreshButton.setText("Refresh");
    refreshButton.addActionListener(formListener);

    newButton.setText("New");
    newButton.addActionListener(formListener);

    deleteButton.setText("Delete");

    binding = org.jdesktop.beansbinding.Bindings.createAutoBinding(org.jdesktop.beansbinding.AutoBinding.UpdateStrategy.READ, masterTable, org.jdesktop.beansbinding.ELProperty.create("${selectedElement != null}"), deleteButton, org.jdesktop.beansbinding.BeanProperty.create("enabled"));
    bindingGroup.addBinding(binding);

    deleteButton.addActionListener(formListener);

    javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
    this.setLayout(layout);
    layout.setHorizontalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
            .addComponent(newButton)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addComponent(deleteButton)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addComponent(refreshButton)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addComponent(saveButton)
            .addContainerGap())
        .addGroup(layout.createSequentialGroup()
            .addContainerGap()
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addComponent(nomeBancoLabel)
                .addComponent(agenciaBancoLabel)
                .addComponent(contaBancoLabel)
                .addComponent(foneBancoLabel))
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                .addComponent(nomeBancoField, javax.swing.GroupLayout.DEFAULT_SIZE, 315, Short.MAX_VALUE)
                .addComponent(agenciaBancoField, javax.swing.GroupLayout.DEFAULT_SIZE, 315, Short.MAX_VALUE)
                .addComponent(contaBancoField, javax.swing.GroupLayout.DEFAULT_SIZE, 315, Short.MAX_VALUE)
                .addComponent(foneBancoField, javax.swing.GroupLayout.DEFAULT_SIZE, 315, Short.MAX_VALUE))
            .addContainerGap())
        .addGroup(layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(masterScrollPane, javax.swing.GroupLayout.DEFAULT_SIZE, 380, Short.MAX_VALUE)
            .addContainerGap())
    );

    layout.linkSize(javax.swing.SwingConstants.HORIZONTAL, new java.awt.Component[] {deleteButton, newButton, refreshButton, saveButton});

    layout.setVerticalGroup(
        layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
        .addGroup(layout.createSequentialGroup()
            .addContainerGap()
            .addComponent(masterScrollPane, javax.swing.GroupLayout.DEFAULT_SIZE, 130, Short.MAX_VALUE)
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                .addComponent(nomeBancoLabel)
                .addComponent(nomeBancoField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                .addComponent(agenciaBancoLabel)
                .addComponent(agenciaBancoField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                .addComponent(contaBancoLabel)
                .addComponent(contaBancoField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                .addComponent(foneBancoLabel)
                .addComponent(foneBancoField, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
            .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                .addComponent(saveButton)
                .addComponent(refreshButton)
                .addComponent(deleteButton)
                .addComponent(newButton))
            .addContainerGap())
    );

    bindingGroup.bind();
}

// Code for dispatching events from components to event handlers.

private class FormListener implements java.awt.event.ActionListener {
    FormListener() {}
    public void actionPerformed(java.awt.event.ActionEvent evt) {
        if (evt.getSource() == saveButton) {
            cad_banco.this.saveButtonActionPerformed(evt);
        }
        else if (evt.getSource() == refreshButton) {
            cad_banco.this.refreshButtonActionPerformed(evt);
        }
        else if (evt.getSource() == newButton) {
            cad_banco.this.newButtonActionPerformed(evt);
        }
        else if (evt.getSource() == deleteButton) {
            cad_banco.this.deleteButtonActionPerformed(evt);
        }
    }
}// </editor-fold>                        


@SuppressWarnings("unchecked")
private void refreshButtonActionPerformed(java.awt.event.ActionEvent evt) {                                              
    entityManager.getTransaction().rollback();
    entityManager.getTransaction().begin();
    java.util.Collection data = query.getResultList();
    for (Object entity : data) {
        entityManager.refresh(entity);
    }
    list.clear();
    list.addAll(data);
}                                             

private void deleteButtonActionPerformed(java.awt.event.ActionEvent evt) {                                             
    int[] selected = masterTable.getSelectedRows();
    List<cadastros.Banco> toRemove = new ArrayList<cadastros.Banco>(selected.length);
    for (int idx=0; idx<selected.length; idx++) {
        cadastros.Banco b = list.get(masterTable.convertRowIndexToModel(selected[idx]));
        toRemove.add(b);
        entityManager.remove(b);
    }
    list.removeAll(toRemove);
}                                            

private void newButtonActionPerformed(java.awt.event.ActionEvent evt) {                                          
    cadastros.Banco b = new cadastros.Banco();
    entityManager.persist(b);
    list.add(b);
    int row = list.size()-1;
    masterTable.setRowSelectionInterval(row, row);
    masterTable.scrollRectToVisible(masterTable.getCellRect(row, 0, true));
}                                         

private void saveButtonActionPerformed(java.awt.event.ActionEvent evt) {                                           
    try {
        entityManager.getTransaction().commit();
        entityManager.getTransaction().begin();
    } catch (RollbackException rex) {
        rex.printStackTrace();
        entityManager.getTransaction().begin();
        List<cadastros.Banco> merged = new ArrayList<cadastros.Banco>(list.size());
        for (cadastros.Banco b : list) {
            merged.add(entityManager.merge(b));
        }
        list.clear();
        list.addAll(merged);
    }
}                                          


// Variables declaration - do not modify                     
private javax.swing.JTextField agenciaBancoField;
private javax.swing.JLabel agenciaBancoLabel;
private javax.swing.JTextField contaBancoField;
private javax.swing.JLabel contaBancoLabel;
private javax.swing.JButton deleteButton;
private javax.persistence.EntityManager entityManager;
private javax.swing.JTextField foneBancoField;
private javax.swing.JLabel foneBancoLabel;
private java.util.List<cadastros.Banco> list;
private javax.swing.JScrollPane masterScrollPane;
private javax.swing.JTable masterTable;
private javax.swing.JButton newButton;
private javax.swing.JTextField nomeBancoField;
private javax.swing.JLabel nomeBancoLabel;
private javax.persistence.Query query;
private javax.swing.JButton refreshButton;
private javax.swing.JButton saveButton;
private org.jdesktop.beansbinding.BindingGroup bindingGroup;
// End of variables declaration                   

public static void main(String[] args) {
    EventQueue.invokeLater(new Runnable() {
        public void run() {
            JFrame frame = new JFrame();
            frame.setContentPane(new cad_banco());
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
            frame.pack();
            frame.setVisible(true);
        }
    });
}

}

e esse erro:

Exception in thread “AWT-EventQueue-0” javax.persistence.PersistenceException: No Persistence provider for EntityManager named sobek2PU: No META-INF/persistence.xml was found in classpath.

alguem pode me ajudar ???

Os jars do toplink estão no classpath??

o arquivo persistence.xml está na pasta META-INF??

Cara,

veja se ajuda:
http://www.guj.com.br/posts/list/41990.java
http://www.guj.com.br/posts/list/127924.java

Verifique se a pasta META-INF(e, dentro dela, o persistence.xml) foi copiada do diretório src para o classes.

[quote=zoren]Os jars do toplink estão no classpath??

o arquivo persistence.xml está na pasta META-INF??[/quote]

e se naum estiver como eu coloco ???