| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.asterix.external.library; |
| |
| import org.apache.asterix.external.api.IExternalScalarFunction; |
| import org.apache.asterix.external.api.IFunctionHelper; |
| import org.apache.asterix.external.library.java.JObjects.JInt; |
| |
| public class SumFunction implements IExternalScalarFunction { |
| |
| private JInt result; |
| |
| @Override |
| public void deinitialize() { |
| // nothing to do here |
| } |
| |
| @Override |
| public void evaluate(IFunctionHelper functionHelper) throws Exception { |
| int arg0 = ((JInt) functionHelper.getArgument(0)).getValue(); |
| int arg1 = ((JInt) functionHelper.getArgument(1)).getValue(); |
| result.setValue(arg0 + arg1); |
| functionHelper.setResult(result); |
| } |
| |
| @Override |
| public void initialize(IFunctionHelper functionHelper) { |
| result = (JInt) functionHelper.getResultObject(); |
| } |
| |
| } |