/* * Copyright (c) 1999,2005 Declarative Engineering LLC. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Declarative Engineering LLC * verson 1 which accompanies this distribution, and is available at * http://declarativeengineering.com/legal/DE_Developer_License_v1.txt */ package com.common.event; /** * Performs some task using the passed parameters and returns a value of Object type. */ public abstract class ObjectHandler2 extends ObjectHandler { /** * ObjectHandler2 constructor. */ public ObjectHandler2() { super(); }//ObjectHandler2()// /** * Calls the evaluate method that takes two parameters. * @param parameters The parameters passed to the handler when it is invoked. * @return The object value that is the result of the task handling. */ public final Object evaluate(Object[] parameters) { return evaluate(((parameters != null) && (parameters.length > 0)) ? parameters[0] : null, ((parameters != null) && (parameters.length > 1)) ? parameters[1] : null); }//evaluate()// /** * Performs some action when the handler is invoked. * @param param1 The first parameter passed to the handler when it is invoked. * @param param2 The second parameter passed to the handler when it is invoked. * @return The object value that is the result of the task handling. */ public abstract Object evaluate(Object param1, Object param2); }//ObjectHandler2//