/***********************************************************************************************************************
* 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.compiler.util;
import eu.stratosphere.api.common.operators.BinaryOperatorInformation;
import eu.stratosphere.api.common.operators.DualInputOperator;
import eu.stratosphere.api.common.operators.RecordOperator;
import eu.stratosphere.api.common.operators.util.UserCodeClassWrapper;
import eu.stratosphere.types.Key;
import eu.stratosphere.types.TypeInformation;
public class NoOpBinaryUdfOp<OUT> extends DualInputOperator<OUT, OUT, OUT, NoOpFunction> implements RecordOperator {
public NoOpBinaryUdfOp(TypeInformation<OUT> type) {
super(new UserCodeClassWrapper<NoOpFunction>(NoOpFunction.class), new BinaryOperatorInformation<OUT, OUT, OUT>(type, type, type), "NoContract");
}
@SuppressWarnings("unchecked")
@Override
public Class<? extends Key<?>>[] getKeyClasses() {
return (Class<? extends Key<?>>[]) new Class[0];
}
}