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/****************************************************************************
* Copyright (c) 2004 Composent, Inc. 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:
* Composent, Inc. - initial API and implementation
*****************************************************************************/
package org.eclipse.ecf.presence;
import org.eclipse.ecf.core.identity.ID;
import org.eclipse.ecf.core.util.ECFException;
/**
* Send presence change events to remotes on buddy list.
*
*/
public interface IPresenceSender {
/**
* Send a presence update to a remote user
*
* @param targetID
* the {@link ID} of the target user for the presence update. If
* <code>null</code>, the presence update is sent to all users
* in current roster. If non-<code>null</code> the presence update
* is sent only to the given <code>targetID</code>.
* @param presence
* the presence information. Should not be <code>null</code>.
*
* @exception ECFException
* thrown if request cannot be sent (e.g. because of previous
* disconnect).
*/
public void sendPresenceUpdate(ID targetID, IPresence presence)
throws ECFException;
}
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