[rules-users] How to create a drl file or decision table dynamically?

[Michael Anstis]

Yes.

If the data "defines" the rules then there are numerous options:-

   - Construct a DRL String yourself and pass this to a KnowledgeBuilder
   - Use the fluent API to build rules programmatically
   - Construct an XLS decision table using your favourite XLS (Java) API
   and look at drools-decisiontables
   - Construct a Guvnor decision table using classes in
   droolsjbpm-ide-common (bundled with Guvnor)

If the data is to be plugged into place-holders in statically defined
rules:-

   - Look at the use of Drools Expert Templates

Decision tables do not lend themselves well to "OR" as there is an implicit
"AND" between columns.

There might be other solutions, these are those that came readily to mind.

With kind regards,

Mike

On 24 February 2012 14:31, shawn <youngxiao121 at hotmail.com> wrote:

> If it is possible to create a drl file or decision table dynamically in
> drool
> or java?
> Like the drool received data then create drl or decision table based on the
> data?
> Data: Condition 1 AND Condition 2 OR Condition 3 .....
> Can the above data be stored in the rule file which also contains the
> operators "AND", "OR"?
>
>
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