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/*******************************************************************************
* Copyright (c) 2005, 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.details;
import java.util.ListIterator;
import org.eclipse.jpt.core.context.JoinColumn;
import org.eclipse.jpt.core.context.JoinColumnEnabledRelationshipReference;
import org.eclipse.jpt.core.context.JoinColumnJoiningStrategy;
import org.eclipse.jpt.ui.internal.details.JoinColumnsComposite.JoinColumnsEditor;
import org.eclipse.jpt.ui.internal.widgets.FormPane;
import org.eclipse.jpt.ui.internal.widgets.PostExecution;
import org.eclipse.jpt.utility.internal.model.value.CachingTransformationPropertyValueModel;
import org.eclipse.jpt.utility.internal.model.value.ReadOnlyWritablePropertyValueModelWrapper;
import org.eclipse.jpt.utility.internal.model.value.ValueListAdapter;
import org.eclipse.jpt.utility.model.event.StateChangeEvent;
import org.eclipse.jpt.utility.model.listener.StateChangeListener;
import org.eclipse.jpt.utility.model.value.PropertyValueModel;
import org.eclipse.swt.widgets.Composite;
/**
* Here is the layout of this pane:
* <pre>
* ---------------------------------------------------------------------
* | |
* | JoinColumnsComposite |
* | |
* ---------------------------------------------------------------------
* -------------------------------------------------------------------------</pre>
*
* @see JoinColumnEnabledRelationshipReference
* @see JoinColumnJoiningStrategy
* @see JoinColumnJoiningStrategyPane
* @see JoinColumnInJoiningStrategyDialog
*
* @version 3.0
* @since 2.0
*/
public class JoiningStrategyJoinColumnsComposite
extends FormPane<JoinColumnJoiningStrategy>
{
private JoinColumnsComposite<JoinColumnJoiningStrategy> joinColumnsComposite;
public JoiningStrategyJoinColumnsComposite(
FormPane<?> parentPane,
PropertyValueModel<JoinColumnJoiningStrategy> subjectHolder,
Composite parent) {
super(parentPane, subjectHolder, parent);
}
@Override
protected void initializeLayout(Composite container) {
this.joinColumnsComposite = new JoinColumnsComposite<JoinColumnJoiningStrategy>(this, container, buildJoinColumnsProvider());
this.joinColumnsComposite.installJoinColumnsPaneEnabler(new JoinColumnPaneEnablerHolder());
}
private JoinColumnsEditor<JoinColumnJoiningStrategy> buildJoinColumnsProvider() {
return new JoinColumnsEditor<JoinColumnJoiningStrategy>() {
public void addJoinColumn(JoinColumnJoiningStrategy subject) {
JoiningStrategyJoinColumnsComposite.this.addJoinColumn(subject);
}
public boolean hasSpecifiedJoinColumns(JoinColumnJoiningStrategy subject) {
return subject.hasSpecifiedJoinColumns();
}
public void editJoinColumn(JoinColumnJoiningStrategy subject, JoinColumn joinColumn) {
JoiningStrategyJoinColumnsComposite.this.editJoinColumn(subject, joinColumn);
}
public JoinColumn getDefaultJoinColumn(JoinColumnJoiningStrategy subject) {
return subject.getDefaultJoinColumn();
}
public String getDefaultPropertyName() {
return JoinColumnJoiningStrategy.DEFAULT_JOIN_COLUMN_PROPERTY;
}
public String getSpecifiedJoinColumnsListPropertyName() {
return JoinColumnJoiningStrategy.SPECIFIED_JOIN_COLUMNS_LIST;
}
public void removeJoinColumns(JoinColumnJoiningStrategy subject, int[] selectedIndices) {
for (int index = selectedIndices.length; --index >= 0; ) {
subject.removeSpecifiedJoinColumn(selectedIndices[index]);
}
}
public ListIterator<JoinColumn> specifiedJoinColumns(JoinColumnJoiningStrategy subject) {
return subject.specifiedJoinColumns();
}
public int specifiedJoinColumnsSize(JoinColumnJoiningStrategy subject) {
return subject.specifiedJoinColumnsSize();
}
};
}
private void addJoinColumn(JoinColumnJoiningStrategy joiningStrategy) {
JoinColumnInJoiningStrategyDialog dialog =
new JoinColumnInJoiningStrategyDialog(getShell(), joiningStrategy, null);
dialog.openDialog(buildAddJoinColumnPostExecution());
}
private PostExecution<JoinColumnInJoiningStrategyDialog> buildAddJoinColumnPostExecution() {
return new PostExecution<JoinColumnInJoiningStrategyDialog>() {
public void execute(JoinColumnInJoiningStrategyDialog dialog) {
if (dialog.wasConfirmed()) {
addJoinColumn(dialog.getSubject());
}
}
};
}
private void addJoinColumn(JoinColumnInJoiningStrategyStateObject stateObject) {
JoinColumnJoiningStrategy subject = getSubject();
int index = subject.specifiedJoinColumnsSize();
JoinColumn joinColumn = subject.addSpecifiedJoinColumn(index);
stateObject.updateJoinColumn(joinColumn);
this.setSelectedJoinColumn(joinColumn);
}
public void setSelectedJoinColumn(JoinColumn joinColumn) {
this.joinColumnsComposite.setSelectedJoinColumn(joinColumn);
}
private void editJoinColumn(JoinColumnJoiningStrategy joiningStrategy, JoinColumn joinColumn) {
JoinColumnInJoiningStrategyDialog dialog =
new JoinColumnInJoiningStrategyDialog(getShell(), joiningStrategy, joinColumn);
dialog.openDialog(buildEditJoinColumnPostExecution());
}
private PostExecution<JoinColumnInJoiningStrategyDialog> buildEditJoinColumnPostExecution() {
return new PostExecution<JoinColumnInJoiningStrategyDialog>() {
public void execute(JoinColumnInJoiningStrategyDialog dialog) {
if (dialog.wasConfirmed()) {
updateJoinColumn(dialog.getSubject());
}
}
};
}
private void updateJoinColumn(JoinColumnInJoiningStrategyStateObject stateObject) {
stateObject.updateJoinColumn(stateObject.getJoinColumn());
}
protected CachingTransformationPropertyValueModel<JoinColumnJoiningStrategy, Boolean> buildJoinColumnsPaneEnabledHolder() {
return new CachingTransformationPropertyValueModel<JoinColumnJoiningStrategy, Boolean>(
new ValueListAdapter<JoinColumnJoiningStrategy>(
new ReadOnlyWritablePropertyValueModelWrapper<JoinColumnJoiningStrategy>(getSubjectHolder()),
JoinColumnJoiningStrategy.SPECIFIED_JOIN_COLUMNS_LIST)) {
@Override
protected Boolean transform(JoinColumnJoiningStrategy value) {
if (value == null) {
return Boolean.FALSE;
}
return super.transform(value);
}
@Override
protected Boolean transform_(JoinColumnJoiningStrategy value) {
boolean virtual = value.getRelationshipReference().getRelationshipMapping().getPersistentAttribute().isVirtual();
return Boolean.valueOf(! virtual && value.specifiedJoinColumnsSize() > 0);
}
};
}
private class JoinColumnPaneEnablerHolder
extends CachingTransformationPropertyValueModel<JoinColumnJoiningStrategy, Boolean>
{
private StateChangeListener stateChangeListener;
public JoinColumnPaneEnablerHolder() {
super(
new ValueListAdapter<JoinColumnJoiningStrategy>(
new ReadOnlyWritablePropertyValueModelWrapper<JoinColumnJoiningStrategy>(getSubjectHolder()),
JoinColumnJoiningStrategy.SPECIFIED_JOIN_COLUMNS_LIST));
this.stateChangeListener = buildStateChangeListener();
}
private StateChangeListener buildStateChangeListener() {
return new StateChangeListener() {
public void stateChanged(StateChangeEvent event) {
valueStateChanged(event);
}
};
}
private void valueStateChanged(StateChangeEvent event) {
Object oldValue = this.cachedValue;
Object newValue = transformNew(this.valueHolder.getValue());
firePropertyChanged(VALUE, oldValue, newValue);
}
@Override
protected Boolean transform(JoinColumnJoiningStrategy value) {
if (value == null) {
return Boolean.FALSE;
}
return super.transform(value);
}
@Override
protected Boolean transform_(JoinColumnJoiningStrategy value) {
boolean virtual = value.getRelationshipReference().isParentVirtual();
return Boolean.valueOf(! virtual && value.specifiedJoinColumnsSize() > 0);
}
@Override
protected void engageModel() {
super.engageModel();
this.valueHolder.addStateChangeListener(this.stateChangeListener);
}
@Override
protected void disengageModel() {
this.valueHolder.removeStateChangeListener(this.stateChangeListener);
super.disengageModel();
}
}
}
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