/**
* Copyright 2009 Google Inc.
*
* Licensed 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.waveprotocol.wave.concurrencycontrol.wave;
import org.waveprotocol.wave.model.operation.wave.WaveletOperation;
import org.waveprotocol.wave.model.operation.SilentOperationSink;
/**
* A duplex op sink contains a pair of sinks, incoming and outgoing.
*
*/
public interface DuplexOpSink {
/**
* View of incoming operation stream.
*/
FlushingOperationSink<WaveletOperation> incoming();
/**
* View of outgoing operaton stream.
*/
SilentOperationSink<? super WaveletOperation> outgoing();
}