/* * Copyright (c) 1998-2011 Caucho Technology -- all rights reserved * * This file is part of Resin(R) Open Source * * Each copy or derived work must preserve the copyright notice and this * notice unmodified. * * Resin Open Source is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * Resin Open Source is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty * of NON-INFRINGEMENT. See the GNU General Public License for more * details. * * You should have received a copy of the GNU General Public License * along with Resin Open Source; if not, write to the * Free SoftwareFoundation, Inc. * 59 Temple Place, Suite 330 * Boston, MA 02111-1307 USA * * @author Scott Ferguson */ package com.caucho.jms.selector; import javax.jms.JMSException; import javax.jms.Message; /** * The base selector. */ public class LiteralSelector extends Selector { private Object _value; LiteralSelector(Object value) { _value = value; } /** * Evaluate the message. The boolean literal selector returns * the value of the boolean. */ Object evaluate(Message message) throws JMSException { return _value; } boolean isUnknown() { return false; } boolean isNumber() { return isNumber(_value); } public String toString() { if (_value instanceof String) return "'" + _value + "'"; else return String.valueOf(_value); } }