Re: [rules-users] Guvnor and drools implementation - questions

Really thank you, it's working fine. I will see if it's working for my more difficult case. On Tue, Mar 1, 2011 at 11:28 PM, Esteban [via Drools - Java Rules Engine] <[hidden email] </user/SendEmail.jtp?type=node&node=2613230&i=0&by-user=t>> wrote: 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 <http://www.plugtree.com> - Blog @ http://ilesteban.wordpress.com 2011/3/1 ioda100 <[hidden email] <http://user/SendEmail.jtp?type=node&node=2607065&i=0>> 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. 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