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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
*******************************************************************************/
/*
* $$RCSfile: ResourceHandler.java,v $$
* $$Revision: 1.2 $$ $$Date: 2005/02/15 23:04:14 $$
*/
package org.eclipse.jem.util.emf.workbench;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
/**
* Implementers of this interface are provide extension capabilities on resource set. Such as looking or creating in other resource sets for a
* resource or an EObject.
*
* @see org.eclipse.jem.util.emf.workbench.ProjectResourceSet#add(ResourceHandler)
* @since 1.0.0
*/
public interface ResourceHandler {
/**
* Each ResourceHandler for a WorkbenchContext (which holds a ProjectResourceSet) will get an oportunity to get the Resource given the uriString
* prior to the originatingResourceSet getting it in the normal manner.
*
* If this handler loaded a Resource in its create(ResourceSet, uriString) then this method should be able to return it as well.
*
* @param originatingResourceSet
* @param uri
* @return resource if found or <code>nulll/code> if this handler didn't find it.
*
* @since 1.0.0
*/
Resource getResource(ResourceSet originatingResourceSet, URI uri);
/**
* Get the EObject for the given URI, if it can. Load the resource if loadOnDemand is <code>true</code>.
*
* @param originatingResourceSet
* @param uri
* uri of EObject being requested
* @param loadOnDemand
* <code>true</code> if resource should be loaded
* @return eobject if found or <code>null</code> if not.
*/
EObject getEObjectFailed(ResourceSet originatingResourceSet, URI uri, boolean loadOnDemand);
/**
* Create the resource pointed to be the URI if this handler will handle it.
*
* @param originatingResourceSet
* @param uri
* @return resource if created, or <code>null</code> if handler doesn't handle this type.
*/
Resource createResource(ResourceSet originatingResourceSet, URI uri);
}
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