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 @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com
2011/3/1 ioda100 <eddyhautot@gmail.com>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.You can define enumerations for a particular attribute.
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.
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)
_______________________________________________
rules-users mailing list
[hidden email]
https://lists.jboss.org/mailman/listinfo/rules-users
http://drools-java-rules-engine.46999.n3.nabble.com/Guvnor-and-drools-implementation-questions-tp2602641p2604255.htmlIf you reply to this email, your message will be added to the discussion below:To unsubscribe from Guvnor and drools implementation - questions, click here.
View this message in context: Re: Guvnor and drools implementation - questions
Sent from the Drools - User mailing list archive at Nabble.com._______________________________________________
rules-users mailing list
rules-users@lists.jboss.org