package org.drools.spi;
/*
* $Id: DefaultKnowledgeHelper.java,v 1.2 2005/02/02 00:23:22 mproctor Exp $
*
* Copyright 2004 (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.
*
* 3. The name "drools" must not be used to endorse or promote products derived
* 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 trademark of The Werken Company.
*
* 5. Due credit should be given to The Werken Company. (http://werken.com/)
*
* THIS SOFTWARE IS PROVIDED BY THE WERKEN COMPANY AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE WERKEN COMPANY OR ITS CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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*/
import java.util.List;
import org.drools.FactException;
import org.drools.FactHandle;
import org.drools.rule.Rule;
public class DefaultKnowledgeHelper implements KnowledgeHelper
{
private final Rule rule;
private final Tuple tuple;
public DefaultKnowledgeHelper( Rule rule,
Tuple tuple )
{
this.rule = rule;
this.tuple = tuple;
}
public void assertObject(Object object) throws FactException
{
this.tuple.getWorkingMemory( ).assertObject( object );
}
public void assertObject(Object object,
boolean dynamic ) throws FactException
{
this.tuple.getWorkingMemory( ).assertObject( object,
dynamic );
}
public void modifyObject(Object object) throws FactException
{
FactHandle handle = this.tuple.getFactHandleForObject( object );
this.tuple.getWorkingMemory( ).modifyObject( handle,
object );
}
public void modifyObject( Object oldObject,
Object newObject ) throws FactException
{
FactHandle handle = this.tuple.getFactHandleForObject( oldObject );
this.tuple.getWorkingMemory( ).modifyObject( handle,
newObject );
}
public void retractObject( Object object ) throws FactException
{
FactHandle handle = this.tuple.getFactHandleForObject( object );
this.tuple.getWorkingMemory( ).retractObject( handle );
}
public String getRuleName()
{
return this.rule.getName( );
}
public List getObjects()
{
return this.tuple.getWorkingMemory( ).getObjects( );
}
public List getObjects( Class objectClass )
{
return this.tuple.getWorkingMemory( ).getObjects( objectClass );
}
public void clearAgenda()
{
this.tuple.getWorkingMemory( ).clearAgenda( );
}
}