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/*******************************************************************************
* Copyright (c) 2014 S.Boyko and others.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v2.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v20.html
*
* Contributors:
* Sergey Boyko - initial API and implementation
*******************************************************************************/
package org.eclipse.m2m.qvt.oml.blackbox.java;
import java.util.List;
import org.eclipse.emf.ecore.EObject;
/**
* Represents an abstraction of a model content (that is MOF extent corresponding to each parameter)
* passed to Java implementation of a blackbox transformation.
*
* @since 3.4
*/
public interface JavaModelExtent {
/**
* Adds non-null object to the model extent.
*
* @param obj instance to be added to the extent
*/
void addObject(EObject obj);
/**
* Removes non-null object of the model extent. All links that the object have with other objects
* in the extent are deleted.
*
* @param obj instance to be removed from the extent
*/
void removeObject(EObject obj);
/**
* Gets the list of root objects belong to this model extent. Root object is the one that
* either does not have parent object (obj.eContainer() == null)
* or initially appear in the model extent before transformation execution begins.
*
* @return list of root objects or an empty list
*/
List<EObject> getRootObjects();
/**
* Gets the list of all objects belong to this model extent.
*
* @return list of all objects or an empty list
*/
List<Object> getAllObjects();
}
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