/**
* Copyright (c) 2002-2010 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 - Initial API and implementation
*/
package org.eclipse.emf.edit.provider;
import java.util.Collection;
import java.util.HashSet;
/**
* This implements {@link IDisposable} as a set IDisposables that can in turn be disposed.
*/
public class Disposable extends HashSet<Object> implements IDisposable
{
private static final long serialVersionUID = 1L;
/**
* This creates an empty instance.
*/
public Disposable()
{
super();
}
/**
* This creates an instance with containing all the given disposables.
*/
public Disposable(Collection<?> disposables)
{
super(disposables);
}
/**
* This is called to dispose the disposables.
*/
public void dispose()
{
for (Object object : this)
{
IDisposable disposable = (IDisposable)object;
disposable.dispose();
}
clear();
}
@Override
public boolean add(Object object)
{
if (object instanceof IDisposable)
{
return super.add(object);
}
else
{
return false;
}
}
@Override
public boolean addAll(Collection<?> collection)
{
boolean result = false;
for (Object object : collection)
{
if (add(object))
{
result = true;
}
}
return result;
}
}