org.apache.flink.migration.state.MigrationKeyGroupStateHandle Maven / Gradle / Ivy
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* 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,
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* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.flink.migration.state;
import org.apache.flink.annotation.Internal;
import org.apache.flink.runtime.state.KeyGroupRangeOffsets;
import org.apache.flink.runtime.state.KeyGroupsStateHandle;
import org.apache.flink.runtime.state.StreamStateHandle;
import org.apache.flink.util.Migration;
/**
* This class is just a KeyGroupsStateHandle that is tagged as migration, to figure out which restore logic to apply,
* e.g. when restoring backend data from a state handle.
*
* @deprecated Internal class for savepoint backwards compatibility. Don't use for other purposes.
*/
@Internal
@Deprecated
public class MigrationKeyGroupStateHandle extends KeyGroupsStateHandle implements Migration {
private static final long serialVersionUID = -8554427169776881697L;
/**
* @param groupRangeOffsets range of key-group ids that in the state of this handle
* @param streamStateHandle handle to the actual state of the key-groups
*/
public MigrationKeyGroupStateHandle(KeyGroupRangeOffsets groupRangeOffsets, StreamStateHandle streamStateHandle) {
super(groupRangeOffsets, streamStateHandle);
}
}