/*
* 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.core.io;
import org.apache.flink.annotation.Public;
import java.io.Serializable;
/**
* This interface must be implemented by all kind of input splits that can be assigned to input formats.
*
* <p>Input splits are transferred in serialized form via the messages, so they need to be serializable
* as defined by {@link java.io.Serializable}.</p>
*/
@Public
public interface InputSplit extends Serializable {
/**
* Returns the number of this input split.
*
* @return the number of this input split
*/
int getSplitNumber();
}