/*
* 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.jobgraph.tasks;
import org.apache.flink.annotation.Public;
import org.apache.flink.core.io.InputSplit;
/**
* An input split provider can be successively queried to provide a series of {@link InputSplit} objects a
* task is supposed to consume in the course of its execution.
*/
@Public
public interface InputSplitProvider {
/**
* Requests the next input split to be consumed by the calling task.
*
* @param userCodeClassLoader used to deserialize input splits
* @return the next input split to be consumed by the calling task or <code>null</code> if the
* task shall not consume any further input splits.
* @throws InputSplitProviderException if fetching the next input split fails
*/
InputSplit getNextInputSplit(ClassLoader userCodeClassLoader) throws InputSplitProviderException;
}