/*
* 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.graph.utils;
import org.apache.flink.api.common.functions.MapFunction;
import org.apache.flink.api.java.functions.FunctionAnnotation.ForwardedFields;
import org.apache.flink.api.java.tuple.Tuple2;
import org.apache.flink.graph.Vertex;
/**
* Create a Tuple2 DataSet from a Vertex DataSet
*
* @param <K> vertex ID type
* @param <VV> vertex value type
*/
@ForwardedFields("f0; f1")
public class VertexToTuple2Map<K, VV> implements MapFunction<Vertex<K, VV>, Tuple2<K, VV>> {
private static final long serialVersionUID = 1L;
@Override
public Tuple2<K, VV> map(Vertex<K, VV> vertex) {
return vertex;
}
}