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/*******************************************************************************
* Copyright (c) 2006, 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.HashMap;
import java.util.Map;
import org.eclipse.jpt.common.ui.WidgetFactory;
import org.eclipse.jpt.common.ui.internal.Tracing;
import org.eclipse.jpt.common.ui.internal.util.ControlSwitcher;
import org.eclipse.jpt.common.utility.Filter;
import org.eclipse.jpt.common.utility.internal.Transformer;
import org.eclipse.jpt.common.utility.internal.model.value.FilteringPropertyValueModel;
import org.eclipse.jpt.common.utility.internal.model.value.PropertyAspectAdapter;
import org.eclipse.jpt.common.utility.model.value.PropertyValueModel;
import org.eclipse.jpt.common.utility.model.value.WritablePropertyValueModel;
import org.eclipse.jpt.core.context.AttributeMapping;
import org.eclipse.jpt.core.context.PersistentAttribute;
import org.eclipse.jpt.core.context.ReadOnlyPersistentAttribute;
import org.eclipse.jpt.ui.details.JpaComposite;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.part.PageBook;
/**
* The abstract definition of the details page responsible to show the
* information for an persistent attribute.
*
* @see PersistentAttribute
*
* @version 2.2
* @since 1.0
*/
public abstract class PersistentAttributeDetailsPage<A extends ReadOnlyPersistentAttribute>
extends AbstractJpaDetailsPage<A>
{
private Map<String, JpaComposite> mappingComposites;
private PageBook mappingPageBook;
private PropertyValueModel<AttributeMapping> mappingHolder;
/**
* Creates a new <code>PersistentAttributeDetailsPage</code>.
*
* @param parent The parent container
* @param widgetFactory The factory used to create various common widgets
*/
protected PersistentAttributeDetailsPage(
Composite parent,
WidgetFactory widgetFactory) {
super(parent, widgetFactory);
}
@Override
protected void initialize() {
super.initialize();
this.mappingComposites = new HashMap<String, JpaComposite>();
}
protected PageBook buildMappingPageBook(Composite parent) {
this.mappingPageBook = new PageBook(parent, SWT.NONE);
this.mappingPageBook.showPage(this.addLabel(this.mappingPageBook, "")); //$NON-NLS-1$
GridData gridData = new GridData();
gridData.horizontalAlignment = SWT.FILL;
gridData.verticalAlignment = SWT.TOP;
gridData.grabExcessHorizontalSpace = true;
gridData.grabExcessVerticalSpace = true;
this.mappingPageBook.setLayoutData(gridData);
this.mappingHolder = this.buildMappingHolder();
new ControlSwitcher(this.mappingHolder, this.buildPaneTransformer(), this.mappingPageBook);
return this.mappingPageBook;
}
private Transformer<AttributeMapping, Control> buildPaneTransformer() {
return new Transformer<AttributeMapping, Control>() {
public Control transform(AttributeMapping attributeMapping) {
if (attributeMapping == null) {
return null;
}
return getMappingComposite(attributeMapping.getKey()).getControl();
}
};
}
protected JpaComposite getMappingComposite(String key) {
JpaComposite composite = this.mappingComposites.get(key);
if (composite != null) {
return composite;
}
composite = buildMappingComposite(this.mappingPageBook, key);
if (composite != null) {
this.mappingComposites.put(key, composite);
}
return composite;
}
protected JpaComposite buildMappingComposite(PageBook pageBook, String key) {
return getJpaPlatformUi().buildAttributeMappingComposite(
getSubject().getResourceType(),
key,
pageBook,
buildMappingHolder(key),
getWidgetFactory());
}
private PropertyValueModel<AttributeMapping> buildMappingHolder(final String key) {
return new FilteringPropertyValueModel<AttributeMapping>(
this.mappingHolder,
buildMappingFilter(key)
);
}
private Filter<AttributeMapping> buildMappingFilter(String mappingKey) {
return new MappingFilter(mappingKey);
}
private WritablePropertyValueModel<AttributeMapping> buildMappingHolder() {
return new PropertyAspectAdapter<A, AttributeMapping>(
getSubjectHolder(),
PersistentAttribute.DEFAULT_MAPPING_KEY_PROPERTY,
PersistentAttribute.MAPPING_PROPERTY)
{
@Override
protected AttributeMapping buildValue_() {
return this.subject.getMapping();
}
};
}
@Override
public void dispose() {
log(Tracing.UI_DETAILS_VIEW, "PersistentAttributeDetailsPage.dispose()"); //$NON-NLS-1$
for (JpaComposite mappingComposite : this.mappingComposites.values()) {
mappingComposite.dispose();
}
this.mappingComposites.clear();
super.dispose();
}
@Override
protected void log(String flag, String message) {
super.log(flag, message);
if (Tracing.UI_DETAILS_VIEW.equals(flag) &&
Tracing.booleanDebugOption(Tracing.UI_DETAILS_VIEW))
{
Tracing.log(message);
}
}
private class MappingFilter implements Filter<AttributeMapping> {
private String mappingKey;
MappingFilter(String mappingKey) {
super();
this.mappingKey = mappingKey;
}
public boolean accept(AttributeMapping mapping) {
return (mapping == null || this.mappingKey == null) || this.mappingKey.equals(mapping.getKey());
}
}
}
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