org.apache.flink.runtime.io.network.partition.NoOpResultSubpartitionView Maven / Gradle / Ivy
/*
* 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.flink.runtime.io.network.partition;
import javax.annotation.Nullable;
/**
* A dummy implementation of the {@link ResultSubpartitionView}.
*/
public class NoOpResultSubpartitionView implements ResultSubpartitionView {
@Nullable
public ResultSubpartition.BufferAndBacklog getNextBuffer() {
return null;
}
@Override
public void notifyDataAvailable() {
}
@Override
public void releaseAllResources() {
}
@Override
public void notifySubpartitionConsumed() {
}
@Override
public boolean isReleased() {
return true;
}
@Override
public Throwable getFailureCause() {
return null;
}
@Override
public boolean nextBufferIsEvent() {
return false;
}
@Override
public boolean isAvailable() {
return false;
}
@Override
public int unsynchronizedGetNumberOfQueuedBuffers() {
return 0;
}
}