| /* |
| * 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); |
| } |