org.apache.flink.runtime.state.KeyGroupStatePartitionStreamProvider 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;
import org.apache.flink.annotation.PublicEvolving;
import java.io.IOException;
import java.io.InputStream;
/**
* This class provides access to an input stream that contains state data for one key group and the key group id.
*/
@PublicEvolving
public class KeyGroupStatePartitionStreamProvider extends StatePartitionStreamProvider {
/** Key group that corresponds to the data in the provided stream */
private final int keyGroupId;
public KeyGroupStatePartitionStreamProvider(IOException creationException, int keyGroupId) {
super(creationException);
this.keyGroupId = keyGroupId;
}
public KeyGroupStatePartitionStreamProvider(InputStream stream, int keyGroupId) {
super(stream);
this.keyGroupId = keyGroupId;
}
/**
* Returns the key group that corresponds to the data in the provided stream.
*/
public int getKeyGroupId() {
return keyGroupId;
}
}