/*
* 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;
import java.util.HashMap;
/**
* The base selector.
*/
public class InSelector extends Selector {
private Selector _expr;
private HashMap<String,String> _values;
InSelector(Selector expr)
{
_expr = expr;
_values = new HashMap<String,String>();
}
void addValue(String value)
{
_values.put(value, value);
}
/**
* Evaluate the message. The boolean literal selector returns
* the value of the boolean.
*/
Object evaluate(Message message)
throws JMSException
{
Object lobj = _expr.evaluate(message);
if (! (lobj instanceof String))
return NULL;
return toBoolean(_values.get(lobj) != null);
}
}