/******************************************************************************* | |
* Copyright (c) 2005, 2012 IBM Corporation and others. | |
* 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: | |
* IBM Corporation - initial API and implementation | |
*******************************************************************************/ | |
package org.eclipse.bpel.ui.adapters; | |
import java.util.List; | |
/** | |
* Adapter for an object which may (or may not) support IContainer. | |
* This class forwards the IContainer methods to a delegate which subclasses | |
* should construct in createContainerDelegate(). | |
*/ | |
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=330813 | |
// https://jira.jboss.org/browse/JBIDE-7526 | |
// push all of the Marker stuff up to MarkerHolderAdapter to avoid duplication | |
public abstract class ContainerAdapter | |
extends MarkerHolderAdapter | |
implements IContainer, IMarkerHolder, AdapterNotification { | |
IContainer containerDelegate = null; | |
protected final IContainer getContainerDelegate(Object object) { | |
if (containerDelegate == null) { | |
containerDelegate = createContainerDelegate(); | |
} | |
return containerDelegate; | |
} | |
/** | |
* Subclasses must override this to create the actual IContainer | |
* implementation. This method should not return null. | |
*/ | |
protected abstract IContainer createContainerDelegate(); | |
/* IContainer */ | |
public boolean addChild(Object object, Object child, Object insertBefore) { | |
return getContainerDelegate(object).addChild(object, child, insertBefore); | |
} | |
public List getChildren(Object object) { | |
return getContainerDelegate(object).getChildren(object); | |
} | |
public boolean removeChild(Object object, Object child) { | |
return getContainerDelegate(object).removeChild(object, child); | |
} | |
public boolean replaceChild(Object object, Object oldChild, Object newChild) { | |
return getContainerDelegate(object).replaceChild(object, oldChild, newChild); | |
} | |
public Object getNextSiblingChild(Object object, Object child) { | |
return getContainerDelegate(object).getNextSiblingChild(object, child); | |
} | |
public boolean canAddObject(Object object, Object child, Object insertBefore) { | |
return getContainerDelegate(object).canAddObject(object, child, insertBefore); | |
} | |
public boolean canRemoveChild (Object object, Object child ) { | |
return getContainerDelegate(object).canRemoveChild(object, child ); | |
} | |
} |