org.apache.flink.runtime.state.heap.AbstractHeapAppendingState Maven / Gradle / Ivy
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* 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.state.AppendingState;
import org.apache.flink.api.common.typeutils.TypeSerializer;
import org.apache.flink.runtime.state.internal.InternalAppendingState;
/**
* Base class for {@link AppendingState} ({@link InternalAppendingState}) that is stored on the heap.
*
* @param The type of the key.
* @param The type of the namespace.
* @param The type of the input elements.
* @param The type of the values in the state.
* @param The type of the output elements.
*/
abstract class AbstractHeapAppendingState
extends AbstractHeapState
implements InternalAppendingState {
/**
* Creates a new key/value state for the given hash map of key/value pairs.
*
* @param stateTable The state table for which this state is associated to.
* @param keySerializer The serializer for the keys.
* @param valueSerializer The serializer for the state.
* @param namespaceSerializer The serializer for the namespace.
* @param defaultValue The default value for the state.
*/
AbstractHeapAppendingState(
StateTable stateTable,
TypeSerializer keySerializer,
TypeSerializer valueSerializer,
TypeSerializer namespaceSerializer,
SV defaultValue) {
super(stateTable, keySerializer, valueSerializer, namespaceSerializer, defaultValue);
}
@Override
public SV getInternal() {
return stateTable.get(currentNamespace);
}
@Override
public void updateInternal(SV valueToStore) {
stateTable.put(currentNamespace, valueToStore);
}
}