Re: [rules-users] how to import function in drl file on guvnor
Hi Avneesh (guessing your name from your email address),
I'm curious what you're actually trying to do. Especially as you refer to
"companyDivision" as a rule and as a function in different parts of your email.
If you intend to apply a function to all objects, is there any reason for it to be a
guided rule in Guvnor? As Mike mentions, you could create a free-format DRL
"technical rule" exactly as you wrote it below. It's perfectly fine to mix
the two up. Some rules suit management by a 'business' person within a guided
editor and others suit being hard-coded by a developer.
With the example you provide, it looks like you're trying to clone a fact when it is
inserted and call a function using the cloned fact as an argument.
If you have a guided rule or decision table which inserts a fact, and you wish to apply a
rule/function to the fact after being processed by the first rule, you can do things like
set a flag on that fact or insert a new fact type, which the technical free-form DRL rule
matches.
As a very trivial example:
when
$company: CompanyBean(!companyDivisionValidated)
then
companyDivision($company);
Steve
On 5 Sep 2012, at 10:02, Michael Anstis <michael.anstis(a)gmail.com> wrote:
Forwarded to mailing list.
You would have to consider use of free-format DRL in this scenario.
---------- Forwarded message ----------
From: <avneesh.sisodia(a)intelegencia.com>
Date: 4 September 2012 12:33
Subject: how to import function in drl file on guvnor
To: michael.anstis(a)gmail.com
Hello mantis,
I am very new in drools and guvnor users. I have a problem during making rules. I want to
use my predefined functions in rule execution.
Suppose I have a rule "companyDivision" and i want to import it into my rule
file like this:
package com.exp.test
import com.abc.bean.CompanyBean
import function
com.abc.util.Validation.companyDivision;
rule "CompanyInfo"
dialect "mvel"
when
CompanyBean( businessType == "ABC" , insuranceProgram ==
"XYZ" )
then
CompanyBean fact0 = new CompanyBean();
fact0.setBusinessType( "ABC" );
fact0.setInsuranceProgram( "XYZ" );
companyDivision(fact0 );
end
How I can do this.
I am doing following steps to c\generate rules::
1. creating com.exp.test package
2. uploading jar(model) file which included all pojo files of application
3. creating "CompanyInfo" rule
rule file generated by guvnor is like this:::
package com.exp.test
import com.abc.bean.CompanyBean
rule "CompanyInfo"
dialect "mvel"
when
CompanyBean( businessType == "ABC" , insuranceProgram ==
"XYZ" )
then
CompanyBean fact0 = new CompanyBean();
fact0.setBusinessType( "ABC" );
fact0.setInsuranceProgram( "XYZ" );
insert(fact0 );
end
I have only two options there 1. insert and 2. insert logically.
but on place of insert and insert logically I want to use "companyDivision"
function.
Please guys tell me how it is possible.
Thanks
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