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/***************************************************************************
* Copyright (c) 2004, 2005, 2006 Eike Stepper, Germany.
* 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:
* Eike Stepper - initial API and implementation
**************************************************************************/
package org.eclipse.net4j.util.registry;
import java.util.Map;
import java.util.Set;
/**
* @author Eike Stepper
*/
public abstract class AbstractMappingRegistry<ID, E extends IRegistryElement<ID>> extends
AbstractRegistry<ID, E>
{
public AbstractMappingRegistry()
{
this(DEFAULT_RESOLVING);
}
public AbstractMappingRegistry(boolean resolving)
{
super(resolving);
}
public synchronized void register(E element)
{
E oldElement = getMap().put(element.getID(), element);
if (oldElement != null)
{
fireElementDeregistering(oldElement);
}
fireElementRegistered(element);
}
public synchronized void deregister(ID id)
{
E element = getMap().remove(id);
if (element != null)
{
fireElementDeregistering(element);
}
}
/**
* Synchronized to support {@link #resolveElement(IRegistryElement)}
*/
public synchronized E lookup(ID id, boolean resolve)
{
E element = getMap().get(id);
if (resolve)
{
element = resolveElement(element);
}
return element;
}
public Set<ID> getElementIDs()
{
return getMap().keySet();
}
@Override
public synchronized void dispose()
{
getMap().clear();
}
@Override
protected void replaceElement(ID id, E element)
{
getMap().put(id, element);
}
protected abstract Map<ID, E> getMap();
}
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