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