/***********************************************************************************************************************
*
* Copyright (C) 2010-2013 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.pact.common;
import eu.stratosphere.api.common.functions.AbstractFunction;
import eu.stratosphere.api.common.functions.GenericMapper;
import eu.stratosphere.sopremo.serialization.SopremoRecord;
import eu.stratosphere.util.Collector;
/**
* Trivial PACT stub which emits the pairs without modifications.
*/
public class IdentityMap extends AbstractFunction implements GenericMapper<SopremoRecord, SopremoRecord> {
/*
* (non-Javadoc)
* @see eu.stratosphere.api.record.functions.MapFunction#map(eu.stratosphere.types.PactRecord,
* eu.stratosphere.api.record.functions.Collector)
*/
@Override
public void map(final SopremoRecord record, final Collector<SopremoRecord> out) {
out.collect(record);
}
}