001    /*
002     * Copyright 2010 Red Hat, Inc.
003     * Red Hat licenses this file to you under the Apache License, version
004     * 2.0 (the "License"); you may not use this file except in compliance
005     * with the License.  You may obtain a copy of the License at
006     *    http://www.apache.org/licenses/LICENSE-2.0
007     * Unless required by applicable law or agreed to in writing, software
008     * distributed under the License is distributed on an "AS IS" BASIS,
009     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
010     * implied.  See the License for the specific language governing
011     * permissions and limitations under the License.
012     */
013    
014    package org.hornetq.spi.core.remoting;
015    
016    import org.hornetq.api.core.HornetQBuffer;
017    
018    /**
019     * A BufferDecoder
020     *
021     * @author tim
022     *
023     *
024     */
025    public interface BufferDecoder
026    {
027       /**
028        * called by the remoting system prior to {@link org.hornetq.spi.core.remoting.BufferHandler#bufferReceived(Object, org.hornetq.api.core.HornetQBuffer)}.
029        * <p/>
030        * The implementation should return true if there is enough data in the buffer to decode. otherwise false.
031        *
032        * @param buffer the buffer
033        * @return true id the buffer can be decoded..
034        */
035       int isReadyToHandle(HornetQBuffer buffer);
036    }