org.apache.flink.runtime.state.gemini.engine.page.DataPageHashSubPageImpl 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.state.gemini.engine.page;
import org.apache.flink.runtime.state.gemini.engine.page.bmap.GBinaryHashMap;
/**
* The class DataPageHashSubPageImpl is just for boxing the GBinaryHashMap of sub map into DataPage. By this
* way, we can put the GBuffer address of sub map GBinaryHashMap into PageAddress[] of GBufferAddressMapping and
* PageAddressCompositeImpl.
*/
public class DataPageHashSubPageImpl extends DataPageAbstractSubPage {
private GBinaryHashMap gBinaryHashMap;
public DataPageHashSubPageImpl(GBinaryHashMap gBinaryHashMap) {
this.gBinaryHashMap = gBinaryHashMap;
if (gBinaryHashMap.getGByteBuffer() != null) {
gBinaryHashMap.getGByteBuffer().setWaitSeqId();
}
}
@Override
public int getSize() {
return gBinaryHashMap.bytesSize();
}
@Override
public int getCheckSum() {
return gBinaryHashMap.getOriginChecksum();
}
@Override
public GBinaryHashMap getGBinaryHashMap() {
return gBinaryHashMap;
}
@Override
public void retain() {
if (gBinaryHashMap != null) {
gBinaryHashMap.retain();
}
}
@Override
public void release() {
if (gBinaryHashMap != null) {
gBinaryHashMap.release();
}
}
@Override
public int refCnt() {
return gBinaryHashMap.refCnt();
}
@Override
public void close() {
release();
}
}