org.apache.servicemix.drools
Class DroolsExecutionContext

java.lang.Object
  org.drools.event.DefaultAgendaEventListener
      org.apache.servicemix.drools.DroolsExecutionContext

All Implemented Interfaces:

EventListener, org.drools.event.AgendaEventListener

public class DroolsExecutionContext
extends org.drools.event.DefaultAgendaEventListener

Represents the execution context of the Drools rules for a single MessageExchange

Field Summary

static String

JBI_HELPER_KEY

Constructor Summary

DroolsExecutionContext(DroolsEndpoint endpoint, javax.jbi.messaging.MessageExchange exchange)
Start a new execution context for the specified exchange.

Method Summary

void	activationCreated(org.drools.event.ActivationCreatedEvent event, org.drools.WorkingMemory workingMemory)
javax.jbi.messaging.MessageExchange	getExchange() Return the MessageExchange we are evaluating rules on
JbiHelper	getHelper() Access the JbiHelper object that is being exposed to the .drl file
int	getRulesFired() Get the number of rules that were fired
boolean	isExchangeHandled() Returns true if the MessageExchange was handled by the rules themselves (e.g. by answering or faulting the exchange}
void	start() Start the execution context.
void	stop() Stop the context, disposing of all event listeners and working memory contents
void	update() Update the working memory, potentially triggering additional rules

Methods inherited from class org.drools.event.DefaultAgendaEventListener

activationCancelled, afterActivationFired, agendaGroupPopped, agendaGroupPushed, beforeActivationFired

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

JBI_HELPER_KEY

public static final String JBI_HELPER_KEY

See Also:

Constant Field Values

Constructor Detail

DroolsExecutionContext

public DroolsExecutionContext(DroolsEndpoint endpoint,
                              javax.jbi.messaging.MessageExchange exchange)

Start a new execution context for the specified exchange. This will create and fill WorkingMemory and register listeners on it to keep track of things.

Parameters:

endpoint -

exchange -

Method Detail

start

public void start()

Start the execution context. This will fire all rules in the rule base.

update

public void update()

Update the working memory, potentially triggering additional rules

stop

public void stop()

Stop the context, disposing of all event listeners and working memory contents

getRulesFired

public int getRulesFired()

Get the number of rules that were fired

isExchangeHandled

public boolean isExchangeHandled()

Returns true if the MessageExchange was handled by the rules themselves (e.g. by answering or faulting the exchange}

getExchange

public javax.jbi.messaging.MessageExchange getExchange()

Return the MessageExchange we are evaluating rules on

activationCreated

public void activationCreated(org.drools.event.ActivationCreatedEvent event,
                              org.drools.WorkingMemory workingMemory)

Specified by:

activationCreated in interface org.drools.event.AgendaEventListener

Overrides:

activationCreated in class org.drools.event.DefaultAgendaEventListener

getHelper

public JbiHelper getHelper()

Access the JbiHelper object that is being exposed to the .drl file