org.apache.flink.runtime.state.heap.SyncSnapshotStrategySynchronicityBehavior Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* 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,
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package org.apache.flink.runtime.state.heap;
import org.apache.flink.api.common.typeutils.TypeSerializer;
import org.apache.flink.runtime.state.RegisteredKeyValueStateBackendMetaInfo;
/**
* Synchronous behavior for heap snapshot strategy.
*
* @param The data type that the serializer serializes.
*/
class SyncSnapshotStrategySynchronicityBehavior implements SnapshotStrategySynchronicityBehavior {
@Override
public void finalizeSnapshotBeforeReturnHook(Runnable runnable) {
// this triggers a synchronous execution from the main checkpointing thread.
runnable.run();
}
@Override
public boolean isAsynchronous() {
return false;
}
@Override
public StateTable newStateTable(
InternalKeyContext keyContext,
RegisteredKeyValueStateBackendMetaInfo newMetaInfo,
TypeSerializer keySerializer) {
return new NestedMapsStateTable<>(keyContext, newMetaInfo, keySerializer);
}
}