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/*******************************************************************************
* Copyright (c) 2006, 2016 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 java.util.HashMap;
import org.eclipse.jface.resource.ResourceManager;
import org.eclipse.jpt.common.ui.WidgetFactory;
import org.eclipse.jpt.common.ui.internal.swt.bindings.SWTBindingTools;
import org.eclipse.jpt.common.utility.internal.model.value.PropertyAspectAdapter;
import org.eclipse.jpt.common.utility.internal.model.value.PropertyValueModelTools;
import org.eclipse.jpt.common.utility.internal.predicate.CriterionPredicate;
import org.eclipse.jpt.common.utility.internal.transformer.AbstractTransformer;
import org.eclipse.jpt.common.utility.model.value.ModifiablePropertyValueModel;
import org.eclipse.jpt.common.utility.model.value.PropertyValueModel;
import org.eclipse.jpt.common.utility.predicate.Predicate;
import org.eclipse.jpt.common.utility.transformer.Transformer;
import org.eclipse.jpt.jpa.core.context.AttributeMapping;
import org.eclipse.jpt.jpa.core.context.PersistentAttribute;
import org.eclipse.jpt.jpa.ui.JpaPlatformUi;
import org.eclipse.jpt.jpa.ui.details.JpaComposite;
import org.eclipse.jpt.jpa.ui.internal.plugin.JptJpaUiPlugin;
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;
public abstract class PersistentAttributeDetailsPageManager<A extends PersistentAttribute>
extends AbstractJpaDetailsPageManager<A>
{
private final HashMap<String, JpaComposite> mappingComposites = new HashMap<>();
private PageBook mappingPageBook;
private PropertyValueModel<AttributeMapping> mappingModel;
protected PersistentAttributeDetailsPageManager(Composite parent, WidgetFactory widgetFactory, ResourceManager resourceManager) {
super(parent, widgetFactory, resourceManager);
}
@Override
protected void initialize() {
super.initialize();
}
@Override
protected void initializeLayout(Composite container) {
this.mappingPageBook = this.buildMappingPageBook(container);
}
private PageBook buildMappingPageBook(Composite parent) {
PageBook book = new PageBook(parent, SWT.NONE);
GridData gridData = new GridData();
gridData.horizontalAlignment = SWT.FILL;
gridData.verticalAlignment = SWT.TOP;
gridData.verticalIndent = 5;
gridData.grabExcessHorizontalSpace = true;
gridData.grabExcessVerticalSpace = true;
book.setLayoutData(gridData);
this.mappingModel = this.buildMappingModel();
SWTBindingTools.bind(this.mappingModel, this.buildPaneTransformer(), book);
return book;
}
private Transformer<AttributeMapping, Control> buildPaneTransformer() {
return new PaneTransformer();
}
protected class PaneTransformer
extends AbstractTransformer<AttributeMapping, Control>
{
@Override
public Control transform_(AttributeMapping attributeMapping) {
return getMappingComposite(attributeMapping.getKey()).getControl();
}
}
protected JpaComposite getMappingComposite(String key) {
JpaComposite composite = this.mappingComposites.get(key);
if (composite == null) {
composite = this.buildMappingComposite(this.mappingPageBook, key);
if (composite != null) {
this.mappingComposites.put(key, composite);
}
}
return composite;
}
protected JpaComposite buildMappingComposite(PageBook pageBook, String key) {
JpaPlatformUi ui = this.getJpaPlatformUi();
return (ui == null) ? null : ui.buildAttributeMappingComposite(
this.getSubject().getResourceType(),
key,
pageBook,
this.buildMappingModel(key),
this.getMappingCompositeEnabledModel(),
this.getWidgetFactory(),
this.getResourceManager()
);
}
protected abstract PropertyValueModel<Boolean> getMappingCompositeEnabledModel();
private PropertyValueModel<AttributeMapping> buildMappingModel(String key) {
return PropertyValueModelTools.filter_(this.mappingModel, this.buildKeyEquals(key));
}
private Predicate<AttributeMapping> buildKeyEquals(String mappingKey) {
return new KeyEquals(mappingKey);
}
private ModifiablePropertyValueModel<AttributeMapping> buildMappingModel() {
return new PropertyAspectAdapter<A, AttributeMapping>(
getSubjectHolder(),
PersistentAttribute.MAPPING_PROPERTY)
{
@Override
protected AttributeMapping buildValue_() {
return this.subject.getMapping();
}
};
}
@Override
public void controlDisposed() {
JptJpaUiPlugin.instance().trace(TRACE_OPTION, "dispose"); //$NON-NLS-1$
this.mappingComposites.clear();
super.controlDisposed();
}
private static final String TRACE_OPTION = PersistentAttributeDetailsPageManager.class.getSimpleName();
private class KeyEquals
extends CriterionPredicate<AttributeMapping, String>
{
KeyEquals(String mappingKey) {
super(mappingKey);
}
public boolean evaluate(AttributeMapping mapping) {
return ((mapping == null) || (this.criterion == null)) || this.criterion.equals(mapping.getKey());
}
}
}
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