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/*******************************************************************************
* Copyright (c) 2007, 2009 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0, which accompanies this distribution
* and is available at http://www.eclipse.org/legal/epl-v10.html.
*
* Contributors:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.ui.internal.wizards.gen;
import org.eclipse.jpt.gen.internal.Association;
import org.eclipse.jpt.gen.internal.ORMGenCustomizer;
import org.eclipse.jpt.ui.internal.JpaHelpContextIds;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
public class CardinalityPage extends NewAssociationWizardPage {
private Label mtoDescLabel;
private Label otmDescLabel;
private Label otoDescLabel;
private Label mtmDescLabel;
private Button[] cardinalityButtons = new Button[4];
protected CardinalityPage(ORMGenCustomizer customizer) {
super( customizer , "CardinalityPage" );
setTitle(JptUiEntityGenMessages.GenerateEntitiesWizard_newAssoc_cardinalityPage_title);
setDescription( JptUiEntityGenMessages.GenerateEntitiesWizard_newAssoc_cardinalityPage_desc);
}
public void createControl(Composite parent) {
initializeDialogUnits(parent);
Composite composite = new Composite(parent, SWT.NULL);
int nColumns= 1 ;
GridLayout layout = new GridLayout();
layout.numColumns = nColumns;
composite.setLayout(layout);
this.getHelpSystem().setHelp(composite, JpaHelpContextIds.GENERATE_ENTITIES_WIZARD_ASSOCIATION_CARDINALITY);
CardinalitySelectionListener selectionListener = new CardinalitySelectionListener();
cardinalityButtons[0] = createRadioButton( composite, 1, JptUiEntityGenMessages.manyToOne);
cardinalityButtons[0].addSelectionListener( selectionListener );
//Default cardinality is MTO
cardinalityButtons[0].setSelection(true);
getWizardDataModel().put(NewAssociationWizard.ASSOCIATION_CADINALITY, Association.MANY_TO_ONE);
mtoDescLabel = createLabel(composite,1, JptUiEntityGenMessages.manyToOneDesc);
cardinalityButtons[1] = createRadioButton( composite, 1, JptUiEntityGenMessages.oneToMany);
cardinalityButtons[1].addSelectionListener( selectionListener );
otmDescLabel = createLabel(composite,1, JptUiEntityGenMessages.manyToOneDesc);
cardinalityButtons[2] = createRadioButton( composite, 1, JptUiEntityGenMessages.oneToOne);
cardinalityButtons[2].addSelectionListener( selectionListener );
otoDescLabel = createLabel(composite,1, JptUiEntityGenMessages.oneToOneDesc);
cardinalityButtons[3] = createRadioButton( composite, 1, JptUiEntityGenMessages.manyToMany);
mtmDescLabel= createLabel(composite,1, JptUiEntityGenMessages.manyToManyDesc);
setControl(composite);
this.setPageComplete( true );
cardinalityButtons[0].setFocus();
}
public void updateWithNewTables() {
String s1 = getReferrerTableName() ;
String s2 = getReferencedTableName() ;
String joinTableName = getJoinTableName();
if( s1 == null || s2 == null )
return ;
updateDescriptionText(s1, s2);
if( joinTableName == null ){
cardinalityButtons[0].setEnabled(true);
cardinalityButtons[1].setEnabled(true);
cardinalityButtons[2].setEnabled(true);
cardinalityButtons[3].setEnabled(false);
mtmDescLabel.setEnabled(false);
}else{
cardinalityButtons[0].setEnabled(false);
cardinalityButtons[1].setEnabled(false);
cardinalityButtons[2].setEnabled(false);
cardinalityButtons[3].setEnabled(true);
cardinalityButtons[3].setSelection(true);
mtmDescLabel.setEnabled(true);
}
((Composite)this.getControl()).layout() ;
}
private void updateDescriptionText(String s1, String s2) {
//MTO
String msg = String.format(JptUiEntityGenMessages.manyToOneDesc, s2, s1);
mtoDescLabel.setText( msg );
//OTM
msg = String.format(JptUiEntityGenMessages.manyToOneDesc, s1, s2);
otmDescLabel.setText( msg );
msg = String.format(JptUiEntityGenMessages.oneToOneDesc, s1, s2);
otoDescLabel.setText( msg );
msg = String.format(JptUiEntityGenMessages.manyToManyDesc, s1, s2, s2, s1);
mtmDescLabel.setText( msg );
}
public boolean canFlipToNextPage() {
return false;
}
private Label createLabel(Composite container, int span, String text) {
Label label = new Label(container, SWT.NONE);
label.setText(text);
GridData gd = new GridData();
gd.horizontalSpan = span;
gd.horizontalIndent = 30;
label.setLayoutData(gd);
return label;
}
private Button createRadioButton(Composite container, int span, String text ) {
Button btn = new Button(container, SWT.RADIO );
btn.setText(text);
GridData gd = new GridData();
gd.horizontalSpan = span;
btn.setLayoutData(gd);
return btn;
}
private class CardinalitySelectionListener implements SelectionListener {
public void widgetDefaultSelected(SelectionEvent e) {}
public void widgetSelected(SelectionEvent e) {
if( e.getSource() == cardinalityButtons[0]){
getWizardDataModel().put(NewAssociationWizard.ASSOCIATION_CADINALITY, Association.MANY_TO_ONE);
}else if( e.getSource() == cardinalityButtons[1]){
getWizardDataModel().put(NewAssociationWizard.ASSOCIATION_CADINALITY, Association.ONE_TO_MANY );
}else if( e.getSource() == cardinalityButtons[2]){
getWizardDataModel().put(NewAssociationWizard.ASSOCIATION_CADINALITY, Association.ONE_TO_ONE);
}else{
getWizardDataModel().put(NewAssociationWizard.ASSOCIATION_CADINALITY, Association.MANY_TO_MANY);
}
CardinalityPage.this.setPageComplete(true);
}
}
}
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