/*
* 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.core.fs.FSDataInputStream;
import java.io.IOException;
/**
* A {@link StateObject} that represents state that was written to a stream. The data can be read
* back via {@link #openInputStream()}.
*/
public interface StreamStateHandle extends StateObject {
/**
* Returns an {@link FSDataInputStream} that can be used to read back the data that
* was previously written to the stream.
*/
FSDataInputStream openInputStream() throws IOException;
}