/*********************************************************************************************************************** * * Copyright (C) 2010-2014 by the Stratosphere project (http://stratosphere.eu) * * Licensed 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 eu.stratosphere.streaming.api; import java.util.HashSet; import java.util.Set; import org.junit.Test; import eu.stratosphere.api.java.functions.FlatMapFunction; import eu.stratosphere.api.java.tuple.Tuple2; import eu.stratosphere.util.Collector; public class PrintTest { public static final class MyFlatMap extends FlatMapFunction, Tuple2> { private static final long serialVersionUID = 1L; @Override public void flatMap(Tuple2 value, Collector> out) throws Exception { out.collect(new Tuple2(value.f0 * value.f0, value.f1)); } } @Test public void test() throws Exception { StreamExecutionEnvironment env = new StreamExecutionEnvironment(); env.fromElements(2, 3, 4).print(); env.generateSequence(1, 10).print(); Set a = new HashSet(); a.add(-2); a.add(-100); env.fromCollection(a).print(); env.execute(); } }