/** * Copyright 2007-2008 University Of Southern 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 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 edu.isi.pegasus.planner.namespace.aggregator; /** * An implementation of the Aggregator interface that always takes the * new profile value. Updates the old value with the new value. * * @author Karan Vahi * @version $Revision$ */ public class Update extends Abstract{ /** * Returns the minimum of two values. * * @param oldValue the existing value for the profile. * @param newValue the new value being added to the profile. * @param dflt the default value to be used in case the values * are not of the correct type. * * @return the computed value as a String. */ public String compute( String oldValue, String newValue, String dflt ){ //always return the new value. no sanity checks return newValue; } }