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/***********************************************************************************************************************
 * 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.api.common.functions;

import eu.stratosphere.util.Collector;


/**
 *
 * @param 
 * @param 
 */
public interface GenericFlatMap extends Function {
	
	/**
	 * User defined function to perform transformations on records.
	 * This method allows to submit an arbitrary number of records
	 * per incoming tuple.
	 * 
	 * @param record incoming record
	 * @param out outgoing collector to return none, one or more records
	 * @throws Exception
	 */
	void flatMap(T record, Collector out) throws Exception;
}