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/*******************************************************************************
* Copyright (c) 2008 SAP AG.
* 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:
* SAP AG - initial API and implementation
*******************************************************************************/
package org.eclipse.mat.snapshot;
import java.util.HashMap;
/**
* This class holds the paths from one single object to its GC roots.
*
* @noinstantiate
*/
public final class PathsFromGCRootsTree {
private int ownId;
private int[] objectIds;
private HashMap objectInboundReferers;
public PathsFromGCRootsTree(int ownId, HashMap objectInboundReferers, int[] objectIds) {
this.ownId = ownId;
this.objectInboundReferers = objectInboundReferers;
this.objectIds = objectIds;
}
/**
* Get object being the root for this tree.
*
* @return object being the root for this tree
*/
public int getOwnId() {
return ownId;
}
/**
* Get referencing objects.
*
* @return referencing objects
*/
public int[] getObjectIds() {
return objectIds;
}
/**
* Get sub tree for a referencing object.
*
* @param objId referencing object from which on the sub tree is requested
* @return sub tree for a referencing object
*/
public PathsFromGCRootsTree getBranch(int objId) {
return objectInboundReferers.get(objId);
}
}