diff options
Diffstat (limited to 'trunk/qpid/java/common/src/main/java/org/apache/qpid/framing/DeferredDataBlock.java')
-rw-r--r-- | trunk/qpid/java/common/src/main/java/org/apache/qpid/framing/DeferredDataBlock.java | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/trunk/qpid/java/common/src/main/java/org/apache/qpid/framing/DeferredDataBlock.java b/trunk/qpid/java/common/src/main/java/org/apache/qpid/framing/DeferredDataBlock.java new file mode 100644 index 0000000000..f6795ff200 --- /dev/null +++ b/trunk/qpid/java/common/src/main/java/org/apache/qpid/framing/DeferredDataBlock.java @@ -0,0 +1,50 @@ +package org.apache.qpid.framing; + +import org.apache.mina.common.ByteBuffer; + +/* +* +* 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. +* +*/ +public abstract class DeferredDataBlock extends AMQDataBlock +{ + private AMQDataBlock _underlyingDataBlock; + + + public long getSize() + { + if(_underlyingDataBlock == null) + { + _underlyingDataBlock = createAMQDataBlock(); + } + return _underlyingDataBlock.getSize(); + } + + public void writePayload(ByteBuffer buffer) + { + if(_underlyingDataBlock == null) + { + _underlyingDataBlock = createAMQDataBlock(); + } + _underlyingDataBlock.writePayload(buffer); + } + + abstract protected AMQDataBlock createAMQDataBlock(); + +} |