[jboss-jira] [JBoss JIRA] (DROOLS-2961) Existence and Data Driven rule firing

[Mark Proctor (JIRA)]

    [ https://issues.jboss.org/browse/DROOLS-2961?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13628496#comment-13628496 ] 

Mark Proctor commented on DROOLS-2961:
--------------------------------------

In the games I use a Run() last pattern to create waterfall type execution. This is where a rule that remains true will fire every time the control loop repeats, and every time a agenda-group (soon to be unit) is entered.

This is similar to what ROSIE calls data-driven and existence-driven rules.
http://www.dtic.mil/dtic/tr/fulltext/u2/a074544.pdf

Here it differentiates between the two using "if" for existence driven and "when" for data driven rules.

We could add to our keywords too, or have an annotation. I'm in preference of the later.

> Existence and Data Driven rule firing
> -------------------------------------
>
>                 Key: DROOLS-2961
>                 URL: https://issues.jboss.org/browse/DROOLS-2961
>             Project: Drools
>          Issue Type: Feature Request
>            Reporter: Mark Proctor
>            Assignee: Mario Fusco
>




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