org.apache.flink.runtime.state.KeyGroupsSavepointStateHandle 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;
/** A {@link KeyGroupsStateHandle} that describes a savepoint in the unified format. */
public class KeyGroupsSavepointStateHandle extends KeyGroupsStateHandle
implements SavepointKeyedStateHandle {
private static final long serialVersionUID = 1L;
/**
* @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 KeyGroupsSavepointStateHandle(
KeyGroupRangeOffsets groupRangeOffsets, StreamStateHandle streamStateHandle) {
super(groupRangeOffsets, streamStateHandle);
}
/**
* @param keyGroupRange a key group range to intersect.
* @return key-group state over a range that is the intersection between this handle's key-group
* range and the provided key-group range.
*/
@Override
public KeyGroupsStateHandle getIntersection(KeyGroupRange keyGroupRange) {
KeyGroupRangeOffsets offsets = getGroupRangeOffsets().getIntersection(keyGroupRange);
if (offsets.getKeyGroupRange().getNumberOfKeyGroups() <= 0) {
return null;
}
return new KeyGroupsSavepointStateHandle(offsets, getDelegateStateHandle());
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (!(o instanceof KeyGroupsSavepointStateHandle)) {
return false;
}
return super.equals(o);
}
@Override
public String toString() {
return "KeyGroupsSavepointStateHandle{"
+ "groupRangeOffsets="
+ getGroupRangeOffsets()
+ ", stateHandle="
+ getDelegateStateHandle()
+ '}';
}
}