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/*******************************************************************************
* Copyright (c) 2005, 2012 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.jpa.ui.internal.details;
import org.eclipse.jpt.common.ui.internal.widgets.Pane;
import org.eclipse.jpt.common.utility.internal.iterables.ListIterable;
import org.eclipse.jpt.common.utility.internal.iterables.SuperListIterableWrapper;
import org.eclipse.jpt.common.utility.internal.model.value.CachingTransformationPropertyValueModel;
import org.eclipse.jpt.common.utility.internal.model.value.ReadOnlyWritablePropertyValueModelWrapper;
import org.eclipse.jpt.common.utility.internal.model.value.ValueListAdapter;
import org.eclipse.jpt.common.utility.model.event.StateChangeEvent;
import org.eclipse.jpt.common.utility.model.listener.StateChangeListener;
import org.eclipse.jpt.common.utility.model.value.PropertyValueModel;
import org.eclipse.jpt.jpa.core.context.JoinColumn;
import org.eclipse.jpt.jpa.core.context.JoinColumnRelationship;
import org.eclipse.jpt.jpa.core.context.JoinColumnRelationshipStrategy;
import org.eclipse.jpt.jpa.core.context.ReadOnlyJoinColumn;
import org.eclipse.jpt.jpa.core.context.ReadOnlyJoinColumnRelationshipStrategy;
import org.eclipse.jpt.jpa.ui.internal.details.JoinColumnsComposite.JoinColumnsEditor;
import org.eclipse.swt.widgets.Composite;
/**
* Here is the layout of this pane:
* <pre>
* ---------------------------------------------------------------------
* | |
* | JoinColumnsComposite |
* | |
* ---------------------------------------------------------------------
* -------------------------------------------------------------------------</pre>
*
* @see JoinColumnRelationship
* @see JoinColumnRelationshipStrategy
* @see JoinColumnJoiningStrategyPane
* @see JoinColumnInJoiningStrategyDialog
*
* @version 3.0
* @since 2.0
*/
public class JoiningStrategyJoinColumnsComposite
extends Pane<ReadOnlyJoinColumnRelationshipStrategy>
{
private JoinColumnsComposite<ReadOnlyJoinColumnRelationshipStrategy> joinColumnsComposite;
public JoiningStrategyJoinColumnsComposite(
Pane<?> parentPane,
PropertyValueModel<ReadOnlyJoinColumnRelationshipStrategy> subjectHolder,
Composite parent) {
super(parentPane, subjectHolder, parent);
}
@Override
protected void initializeLayout(Composite container) {
this.joinColumnsComposite = new JoinColumnsComposite<ReadOnlyJoinColumnRelationshipStrategy>(this, container, buildJoinColumnsProvider());
this.joinColumnsComposite.installJoinColumnsPaneEnabler(new JoinColumnPaneEnablerHolder());
}
private JoinColumnsEditor<ReadOnlyJoinColumnRelationshipStrategy> buildJoinColumnsProvider() {
return new JoinColumnsEditor<ReadOnlyJoinColumnRelationshipStrategy>() {
public void addJoinColumn(ReadOnlyJoinColumnRelationshipStrategy subject) {
JoiningStrategyJoinColumnsComposite.this.addJoinColumn(subject);
}
public boolean hasSpecifiedJoinColumns(ReadOnlyJoinColumnRelationshipStrategy subject) {
return subject.hasSpecifiedJoinColumns();
}
public void editJoinColumn(ReadOnlyJoinColumnRelationshipStrategy subject, ReadOnlyJoinColumn joinColumn) {
JoiningStrategyJoinColumnsComposite.this.editJoinColumn(subject, joinColumn);
}
public ReadOnlyJoinColumn getDefaultJoinColumn(ReadOnlyJoinColumnRelationshipStrategy subject) {
return subject.getDefaultJoinColumn();
}
public String getDefaultPropertyName() {
return ReadOnlyJoinColumnRelationshipStrategy.DEFAULT_JOIN_COLUMN_PROPERTY;
}
public String getSpecifiedJoinColumnsListPropertyName() {
return ReadOnlyJoinColumnRelationshipStrategy.SPECIFIED_JOIN_COLUMNS_LIST;
}
public void removeJoinColumns(ReadOnlyJoinColumnRelationshipStrategy subject, int[] selectedIndices) {
for (int index = selectedIndices.length; --index >= 0; ) {
((JoinColumnRelationshipStrategy) subject).removeSpecifiedJoinColumn(selectedIndices[index]);
}
}
public ListIterable<ReadOnlyJoinColumn> getSpecifiedJoinColumns(ReadOnlyJoinColumnRelationshipStrategy subject) {
return new SuperListIterableWrapper<ReadOnlyJoinColumn>(subject.getSpecifiedJoinColumns());
}
public int getSpecifiedJoinColumnsSize(ReadOnlyJoinColumnRelationshipStrategy subject) {
return subject.getSpecifiedJoinColumnsSize();
}
};
}
void addJoinColumn(ReadOnlyJoinColumnRelationshipStrategy joiningStrategy) {
JoinColumnInJoiningStrategyDialog dialog =
new JoinColumnInJoiningStrategyDialog(getShell(), joiningStrategy, null);
dialog.setBlockOnOpen(true);
dialog.open();
if (dialog.wasConfirmed()) {
addJoinColumn(dialog.getSubject());
}
}
void addJoinColumn(JoinColumnInJoiningStrategyStateObject stateObject) {
JoinColumnRelationshipStrategy subject = (JoinColumnRelationshipStrategy) getSubject();
JoinColumn joinColumn = subject.addSpecifiedJoinColumn();
stateObject.updateJoinColumn(joinColumn);
this.setSelectedJoinColumn(joinColumn);
}
public void setSelectedJoinColumn(JoinColumn joinColumn) {
this.joinColumnsComposite.setSelectedJoinColumn(joinColumn);
}
void editJoinColumn(ReadOnlyJoinColumnRelationshipStrategy joiningStrategy, ReadOnlyJoinColumn joinColumn) {
JoinColumnInJoiningStrategyDialog dialog =
new JoinColumnInJoiningStrategyDialog(getShell(), joiningStrategy, joinColumn);
dialog.setBlockOnOpen(true);
dialog.open();
if (dialog.wasConfirmed()) {
updateJoinColumn(dialog.getSubject());
}
}
void updateJoinColumn(JoinColumnInJoiningStrategyStateObject stateObject) {
stateObject.updateJoinColumn(stateObject.getJoinColumn());
}
private class JoinColumnPaneEnablerHolder
extends CachingTransformationPropertyValueModel<ReadOnlyJoinColumnRelationshipStrategy, Boolean>
{
private StateChangeListener stateChangeListener;
public JoinColumnPaneEnablerHolder() {
super(
new ValueListAdapter<ReadOnlyJoinColumnRelationshipStrategy>(
new ReadOnlyWritablePropertyValueModelWrapper<ReadOnlyJoinColumnRelationshipStrategy>(getSubjectHolder()),
ReadOnlyJoinColumnRelationshipStrategy.SPECIFIED_JOIN_COLUMNS_LIST));
this.stateChangeListener = buildStateChangeListener();
}
private StateChangeListener buildStateChangeListener() {
return new StateChangeListener() {
public void stateChanged(StateChangeEvent event) {
valueStateChanged();
}
};
}
void valueStateChanged() {
Object oldValue = this.cachedValue;
Object newValue = transformNew(this.valueHolder.getValue());
firePropertyChanged(VALUE, oldValue, newValue);
}
@Override
protected Boolean transform(ReadOnlyJoinColumnRelationshipStrategy value) {
if (value == null) {
return Boolean.FALSE;
}
return super.transform(value);
}
@Override
protected Boolean transform_(ReadOnlyJoinColumnRelationshipStrategy value) {
boolean virtual = value.getRelationship().isVirtual();
return Boolean.valueOf(! virtual && value.getSpecifiedJoinColumnsSize() > 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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