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/**
* $RCSfile$
* $Revision$
* $Date$
*
* Copyright 2003-2007 Jive Software.
*
* All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jivesoftware.smack.packet;
/**
* Interface to represent packet extensions. A packet extension is an XML subdocument
* with a root element name and namespace. Packet extensions are used to provide
* extended functionality beyond what is in the base XMPP specification. Examples of
* packet extensions include message events, message properties, and extra presence data.
* IQ packets cannot contain packet extensions.
*
* @see DefaultPacketExtension
* @see org.jivesoftware.smack.provider.PacketExtensionProvider
* @author Matt Tucker
*/
public interface PacketExtension {
/**
* Returns the root element name.
*
* @return the element name.
*/
public String getElementName();
/**
* Returns the root element XML namespace.
*
* @return the namespace.
*/
public String getNamespace();
/**
* Returns the XML representation of the PacketExtension.
*
* @return the packet extension as XML.
*/
public String toXML();
}
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