Package org.drools.examples.state

Source Code of org.drools.examples.state.StateExample

package org.drools.examples.state;

/*
* $Id: StateExample.java,v 1.7 2005/11/25 02:35:33 mproctor Exp $
*
* Copyright 2002 (C) The Werken Company. All Rights Reserved.
*
* Redistribution and use of this software and associated documentation
* ("Software"), with or without modification, are permitted provided that the
* following conditions are met:
*
* 1. Redistributions of source code must retain copyright statements and
* notices. Redistributions must also contain a copy of this document.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
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* from this Software without prior written permission of The Werken Company.
* For written permission, please contact bob@werken.com.
*
* 4. Products derived from this Software may not be called "drools" nor may
* "drools" appear in their names without prior written permission of The Werken
* Company. "drools" is a registered trademark of The Werken Company.
*
* 5. Due credit should be given to The Werken Company.
* (http://drools.werken.com/).
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* THIS SOFTWARE IS PROVIDED BY THE WERKEN COMPANY AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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*/

import java.io.IOException;
import java.net.URL;

import org.drools.DroolsException;
import org.drools.RuleBase;
import org.drools.WorkingMemory;
import org.drools.examples.fibonacci.FibonacciExample;
import org.drools.examples.helloworld.HelloWorldExample;
import org.drools.io.RuleBaseLoader;
import org.drools.io.RuleSetLoader;
import org.drools.smf.RuleSetPackage;
import org.xml.sax.SAXException;

public class StateExample
{
    public static void main( String[] args ) throws DroolsException,
                                                    SAXException,
                                                    IOException
    {
        if ( args.length != 1 )
        {
            System.out.println(
                "Usage: " + StateExample.class.getName( ) + " [drl file]" );
            return;
        }
        System.out.println( "Using drl: " + args[0] );
       
        RuleSetLoader ruleSetLoader = new RuleSetLoader();          
        ruleSetLoader.addFromUrl( StateExample.class.getResource( args[ 0 ] ) );           
       
        RuleBaseLoader ruleBaseLoader = new RuleBaseLoader();
        ruleBaseLoader.addFromRuleSetLoader(ruleSetLoader);
        RuleBase ruleBase = ruleBaseLoader.buildRuleBase();             

        WorkingMemory workingMemory = ruleBase.newWorkingMemory( );

        State a = new State( "A" );
        State b = new State( "B" );
        State c = new State( "C" );
        State d = new State( "D" );

        // By setting dynamic to TRUE, Drools will use JavaBean
        // PropertyChangeListeners so you don't have to call modifyObject().
        boolean dynamic = true;

        workingMemory.assertObject( a, dynamic );
        workingMemory.assertObject( b, dynamic );
        workingMemory.assertObject( c, dynamic );
        workingMemory.assertObject( d, dynamic );

        workingMemory.fireAllRules( );
    }
}
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