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/*******************************************************************************
* Copyright (c) 2005 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.wst.common.internal.emfworkbench.edit;
import org.eclipse.jem.internal.util.emf.workbench.nls.EMFWorkbenchResourceHandler;
import org.eclipse.wst.common.internal.emfworkbench.EMFWorkbenchEditResourceHandler;
/**
* This is a readonly version of the editmodel access registry, only uses a weak hash dictionary,
* and because the access is read only, is less concerned with timing of access/release, and will be
* cleaned up on garbage collection if needed.
*
*/
public class ReadOnlyClientAccessRegistry extends ClientAccessRegistry {
public ReadOnlyClientAccessRegistry() {
super();
}
public synchronized void access(Object accessorKey) {
if (!registry.containsKey(accessorKey)) {
this.registry.put(accessorKey, null);
} else
throw new ClientAccessRegistryException(EMFWorkbenchEditResourceHandler.ClientAccessRegistry_ERROR_0, accessorKey);
}
public synchronized void release(Object accessorKey) {
/*
* Error condition: Some one has been naughty and not released the resource
*/
if (this.registry.containsKey(accessorKey)) {
this.registry.remove(accessorKey);
} else
complain(accessorKey);
}
public void complain(Object accessorKey) {
throw new ClientAccessRegistryException(EMFWorkbenchResourceHandler.getString("ClientAccessRegistry_ERROR_1"), accessorKey); //$NON-NLS-1$
}
}
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