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19.5. HelloWorld Example: System.out in the Console Window
Hello Goodbye
==>[ActivationCreated(0): rule=Hello World;
tuple=[fid:1:1:org.drools.examples.helloworld.HelloWorldExample$Message@17cec96]]
[ObjectInserted: handle=[fid:1:1:org.drools.examples.helloworld.HelloWorldExample$Message@17cec96];
object=org.drools.examples.helloworld.HelloWorldExample$Message@17cec96]
[BeforeActivationFired: rule=Hello World;
tuple=[fid:1:1:org.drools.examples.helloworld.HelloWorldExample$Message@17cec96]]
==>[ActivationCreated(4): rule=Good Bye;
tuple=[fid:1:2:org.drools.examples.helloworld.HelloWorldExample$Message@17cec96]]
[ObjectUpdated: handle=[fid:1:2:org.drools.examples.helloworld.HelloWorldExample$Message@17cec96];
old_object=org.drools.examples.helloworld.HelloWorldExample$Message@17cec96;
new_object=org.drools.examples.helloworld.HelloWorldExample$Message@17cec96]
[AfterActivationFired(0): rule=Hello World]
[BeforeActivationFired: rule=Good Bye;
tuple=[fid:1:2:org.drools.examples.helloworld.HelloWorldExample$Message@17cec96]]
[AfterActivationFired(4): rule=Good Bye]- By putting a breakpoint on the
fireAllRules()method and select theksessionvariable, you can see that the "Hello World" rule is already activated and on the Agenda, confirming that all the pattern matching work was already done during the insert. - The application print outs go to
System.outwhile the debug listener print outs go toSystem.err.

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