[rules-users] PackageBuilderConfiguration

Wed Mar 2 10:49:26 EST 2011

Got it fixed. Thanks for looking.

saleem

From: rules-users-bounces at lists.jboss.org [mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Saleem Lakhani
Sent: Wednesday, March 02, 2011 9:53 AM
To: Rules Users List
Subject: [rules-users] PackageBuilderConfiguration

HI,

Has anyone seen this before on Drools 5:

java.lang.NoSuchMethodError: org/drools/compiler/PackageBuilderConfiguration.<init>(Ljava/util/Properties;)V

any insight?

saleem

From: rules-users-bounces at lists.jboss.org [mailto:rules-users-bounces at lists.jboss.org] On Behalf Of ioda100
Sent: Wednesday, March 02, 2011 8:06 AM
To: rules-users at lists.jboss.org
Subject: 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]> 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 
- 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. Data enumerations (drop down list configurations)

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