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
014package org.hornetq.spi.core.remoting;
015
016import org.hornetq.api.core.HornetQBuffer;
017
018/**
019 * A BufferDecoder
020 *
021 * @author tim
022 *
023 *
024 */
025public 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}