/* * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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.apache.vysper.xmpp.protocol; import org.apache.vysper.xmpp.stanza.Stanza; /** * a collection of stanza handlers belonging together in a semantical way for example because they all * handle the same namespace. * @see org.apache.vysper.xmpp.protocol.NamespaceHandlerDictionary * * @author The Apache MINA Project (dev@mina.apache.org) */ public interface HandlerDictionary { /** * adds a new handler to this dictionary * @param stanzaHandler */ void register(StanzaHandler stanzaHandler); /** * no additional handler can be added after invoking this method */ void seal(); /** * retrieves the handler for a stanza by inspecting the stanza. * if the stanza cannot be handled, returns null. * @param stanza * @return NULL, if dictionary contains no handler for this stanza, or the handler otherwise */ StanzaHandler get(Stanza stanza); }