You need to create the DSL first.
Follow these steps:
1.- Add java.util.Map to package imports (I think you already did this)
2.- Create a new Enumeration with the following content:
*'Map.properties': ['prop1', 'prop2', 'prop3']*
3.- Create a new DSL with this content:
*[when]The property {key:ENUM:Map.properties} of the map is
{value}=Map((this["{key}"] == "{value}"))*
4.- Create a new Rule and add the DSL sentence to the WHEN part. You should
see the drop down.
Note the name of the enumeration and how the variable {key} is defined in
the DSL. I think you can also read the enumerations from a Java Enum present
on your model, but I'm not sure about it. Does anyone know about this?
Best Regards,
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Esteban Aliverti
- Developer @
Yes but for this i will be obliged to create a POJO of an object. And
for
attributes of that object in DSL i can define values that can take this
attribute?
Maybe i don't understand but i don't see how to do with this.
My case :
I have Maps in the session. Each Map has for example 5 properties ("prop1",
"prop2", "prop3", "prop4", "prop51") and the
value is a string. The Map is
Map<String, Object> but generally Object is a String.
So in the When clause i have something like that :
$m : Map((this["prop1"] == "test1"))
I have included java.utils.Map in Guvnor. So when i add a when clause i can
choose Map in the list but impossible to have "prop1" to "prop5" in a
drop
down list for attributes of the Map.
Would it be possible to create a Pojo for Map or would it be in conflict
with the Map of Java?
Thank you for your time
Le 1/03/2011 17:55, Vincent Legendre [via Drools - Java Rules Engine] a
écrit :
Le 01/03/2011 15:39, ioda100 a écrit :
Thanks for your quick answer Esteban.
1) Ok i will have a look at DSL. In fact in my map i know all the
properties (about 200). It would be cool to be able to have a drop down list
with all these attributes as when we do it with objects for which we gave
Pojo to Guvnor.
You can define enumerations for a particular attribute.
Inside a DSL you can constrain a placeholder with that enumeration.
And finally, enums can be static, or dynamic (a interface to implement that
returns a list of values).
search the Guvnor's doc in these chapters
1.4.2.4.8. Data enumerations (drop down list configurations)
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