org.apache.flink.runtime.state.gemini.subkeyed.GeminiSubKeyedMapStateImpl 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.subkeyed;
import org.apache.flink.runtime.state.StateStorage;
import org.apache.flink.runtime.state.gemini.engine.hashtable.GTableSubKeyedMapImpl;
import org.apache.flink.runtime.state.subkeyed.SubKeyedMapState;
import org.apache.flink.runtime.state.subkeyed.SubKeyedMapStateDescriptor;
import java.util.HashMap;
import java.util.Map;
/**
* An implementation of {@link SubKeyedMapState} backed by a state storage.
*
* @param Type of the keys in the state.
* @param Type of the namespaces in the state.
* @param Type of the map keys in the state.
* @param Type of the map values in the state.
*/
public final class GeminiSubKeyedMapStateImpl
extends AbstractGeminiSubKeyedMapStateImpl>
implements SubKeyedMapState {
private final SubKeyedMapStateDescriptor descriptor;
public GeminiSubKeyedMapStateImpl(
SubKeyedMapStateDescriptor descriptor,
GTableSubKeyedMapImpl table) {
super(table);
this.descriptor = descriptor;
}
@Override
public StateStorage> getStateStorage() {
return null;
}
@Override
public SubKeyedMapStateDescriptor getDescriptor() {
return descriptor;
}
@Override
Map createMap() {
return new HashMap<>();
}
}