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/*******************************************************************************
* Copyright (c) 2004 Peter Nehrer and Composent, Inc.
* 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:
* Peter Nehrer - initial API and implementation
*******************************************************************************/
package org.eclipse.ecf.sdo;
import org.eclipse.ecf.core.identity.ID;
/**
* Interface used by service implementations to notify the application that a
* change has been made to the data graph by a remote group member.
*
* @author pnehrer
*/
public interface IUpdateConsumer {
/**
* Consumes the remote update. The implementor is expected to leave behind
* an empty Change Summary.
*
* @param graph
* shared data graph whose remote changes to consume
* @param containerID
* id of the remote container that made the change
* @return <code>true</code> if the update has been consumed,
* <code>false</code> otherwise (the update will be rejected as a
* result)
*/
boolean consumeUpdate(ISharedDataGraph graph, ID containerID);
/**
* Notifies the implementor that a remote update has been received, but was
* not successfully applied (i.e., cannot be consumed).
*
* @param graph
* shared data graph whose update failed
* @param containerID
* id of the container that sent the update
*/
void updateFailed(ISharedDataGraph graph, ID containerID);
}
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