| /* |
| * Copyright 2009-2010 by The Regents of the University of California |
| * 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 from |
| * |
| * 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 edu.uci.ics.hyracks.algebricks.tests.pushruntime; |
| |
| import java.io.DataOutput; |
| import java.io.IOException; |
| |
| import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluator; |
| import edu.uci.ics.hyracks.algebricks.core.algebra.runtime.base.IEvaluatorFactory; |
| import edu.uci.ics.hyracks.algebricks.core.api.exceptions.AlgebricksException; |
| import edu.uci.ics.hyracks.dataflow.common.data.accessors.ArrayBackedValueStorage; |
| import edu.uci.ics.hyracks.dataflow.common.data.accessors.IDataOutputProvider; |
| import edu.uci.ics.hyracks.dataflow.common.data.accessors.IFrameTupleReference; |
| import edu.uci.ics.hyracks.dataflow.common.data.marshalling.IntegerSerializerDeserializer; |
| |
| public class IntegerGreaterThanEvalFactory implements IEvaluatorFactory { |
| |
| private static final long serialVersionUID = 1L; |
| |
| private IEvaluatorFactory evalFact1, evalFact2; |
| |
| public IntegerGreaterThanEvalFactory(IEvaluatorFactory evalFact1, IEvaluatorFactory evalFact2) { |
| this.evalFact1 = evalFact1; |
| this.evalFact2 = evalFact2; |
| } |
| |
| @Override |
| public IEvaluator createEvaluator(final IDataOutputProvider output) throws AlgebricksException { |
| return new IEvaluator() { |
| private DataOutput dataout = output.getDataOutput(); |
| private ArrayBackedValueStorage out1 = new ArrayBackedValueStorage(); |
| private ArrayBackedValueStorage out2 = new ArrayBackedValueStorage(); |
| private IEvaluator eval1 = evalFact1.createEvaluator(out1); |
| private IEvaluator eval2 = evalFact2.createEvaluator(out2); |
| |
| @Override |
| public void evaluate(IFrameTupleReference tuple) throws AlgebricksException { |
| out1.reset(); |
| eval1.evaluate(tuple); |
| out2.reset(); |
| eval2.evaluate(tuple); |
| int v1 = IntegerSerializerDeserializer.getInt(out1.getBytes(), 0); |
| int v2 = IntegerSerializerDeserializer.getInt(out2.getBytes(), 0); |
| boolean r = v1 > v2; |
| try { |
| dataout.writeBoolean(r); |
| } catch (IOException ioe) { |
| throw new AlgebricksException(ioe); |
| } |
| } |
| }; |
| } |
| } |