[rules-users] Create rules programatically

Mark Proctor mproctor at codehaus.org
Wed Jun 1 10:52:14 EDT 2011


You can also just generate strings at runtime, either via StringBuilder 
or templating, and compile them at runtime.

Mark
On 01/06/2011 14:43, Edson Tirelli wrote:
>
>    David,
>
>    For 5.2 we are introducing a high level API for rule authoring. 
> Documentation is not ready yet, but you can see the API here:
>
> https://github.com/droolsjbpm/drools/tree/master/drools-compiler/src/main/java/org/drools/lang/api
>
>    DescrFactory is your entry point.
>
>    Before 5.2, the options are to generate DRL string using templates 
> or build the *Descr AST manually. Please note that the *Descr classes 
> are internal and might change from version to version.
>
>    Edson
>
> 2011/6/1 David Godfrey <davidgodf at gmail.com <mailto:davidgodf at gmail.com>>
>
>     Hi,
>
>     Can someone point me in the direction of documentation or code
>     examples for the following? I want to programatically create rules
>     for execution, e.g. within my application I will hold criteria
>     which users will define, at runtime I would like to build a
>     component to extract these values (from my app database) and build
>     rules based on those values. Everything I've seen so far seems to
>     talk about using DRL files, ideally I want to programatically
>     create the entire rule in Java, and then call Drools to execute my
>     rule set.
>
>     Thanks,
>
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>
>
>
>
> -- 
>   Edson Tirelli
>   JBoss Drools Core Development
>   JBoss by Red Hat @ www.jboss.com <http://www.jboss.com>
>
>
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