org.apache.spark.api.java.function.Function.java Source code

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Here is the source code for org.apache.spark.api.java.function.Function.java

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/*
 * 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.spark.api.java.function;

import java.io.Serializable;

/**
 * Base interface for functions whose return types do not create special RDDs. PairFunction and
 * DoubleFunction are handled separately, to allow PairRDDs and DoubleRDDs to be constructed
 * when mapping RDDs of other types.
 */
@FunctionalInterface
public interface Function<T1, R> extends Serializable {
    R call(T1 v1) throws Exception;
}