[rules-users] Detecting what fact/event properties have changed.

[rp2]

Currently drools supports listening to events when objects are inserted,
updated or retracted. I would like to get information about a what
properties have changed when the object was updated. Is there a way to do
that? 

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Re: [rules-users] Temporal reasoning with external persistence not working

[rp2]

Could someone please provide an answer?

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Re: [rules-users] Temporal reasoning with external persistence not working

[rp2]

Thanks. 
Basically I am trying to retrieve (and store) events from an external store
like in http://magazine.redhat.com/2008/07/11/jboss-drools-meets-hibernate/
expect that the backing store in not a relational db but a custom key-value
store. 

This example also does not show the facts/events being inserted. Is this
incorrect?

All it does is 
... ...
workingMemory.setGlobal(hibernateSession, session); // sets a hibernate
session
workingMemory.fireAllRules();



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Re: [rules-users] Temporal reasoning with external persistence not working

[rp2]

Wolfgang Laun-2 wrote:
 
 The example does not use events, as in @role(event). You can maintain
 a value of type java.util.Date in your hibernated facts, but don't make
 them events the way you do.
 
 
It is important for me to use temporal reasoning and CEP, and hence HAD to
define these as @events. 

In addition I wanted to load and persist these events from/in a custom non
JPA compliant key-value store because I will be running multiple instances
of drools as opposed to only one server. Therefore relying on  RAM based
working memory is not enough.

What would be your suggestion in that regard?  

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