[rules-users] What may go in the Action when dialect is java

[Kris Verlaenen]

Have you defined the imports for all your classes (including the helper
class)? And defined your global and variable correctly?

I tried something similar with a simple process as pasted below, and
that seems to working.

Might want to check for any differences ...

Kris

<?xml version="1.0" encoding="UTF-8"?> 
<process xmlns="http://drools.org/drools-5.0/process"
         xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
         xs:schemaLocation="http://drools.org/drools-5.0/process
drools-processes-5.0.xsd"
         type="RuleFlow" name="ruleflow" id="com.sample.ruleflow"
package-name="com.sample" >

  <header>
    <imports>
      <import name="com.test.Campaign" />
      <import name="com.test.CampaignHelper" />
      <import name="com.test.CampaignInfo" />
    </imports>
    <globals>
      <global identifier="result" type="com.test.CampaignResult" />
    </globals>
    <variables>
      <variable name="msg" >
        <type
name="org.drools.process.core.datatype.impl.type.ObjectDataType"
className="com.test.jpa.Message" />
      </variable>
    </variables>
  </header>

  <nodes>
    <actionNode id="2" name="Hello" x="96" y="16" width="80" height="48" >
        <action type="expression" dialect="java" >Campaign c =
msg.getCampaign();
CampaignInfo info = CampaignHelper.getCampaignInfo(c);
result.setCampaignInfo(info);</action>
    </actionNode>
    <start id="1" name="Start" x="16" y="16" width="48" height="48" />
    <end id="3" name="End" x="208" y="16" width="48" height="48" />
  </nodes>

  <connections>
    <connection from="1" to="2" />
    <connection from="2" to="3" />
  </connections>

</process>

Quoting jsk at orwtech.dk:

> Hi
> 
> For some time I have been struggling to complete my Drools workflow
> without succes.
> 
> I am trying to access static methods on som java classes but for
> some
> reason i keep getting NoSuchMethodException when switching the
> dialect
> from "mvel" to "java" to be able to call this methods.
> 
> What I have at runtime is a message variable containing a campaign
> class
> instance which I want to parse on to my static method for it to
> return an
> campaign information class instance to me.
> 
> Which I then set in a global variable that I read outside the
> knowledge
> session.
> 
> The global variable is defined like this:
> 
> global com.test.CampaignResult result
> 
> The flow variable is defined like this:
> 
> com.test.jpa.Message msg;
> 
> My code lookes like this:
> 
> Campaign c = msg.getCampaign();
> CampaignInfo info = CampaignHelper.getCampaignInfo(c);
> result.setCampaignInfo(info);
> 
> My Drools is 5.0.1
> 
> Can anybody help me on getting this to work?
> 
> Best regards
> 
> Jesper
> 
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
> 




Disclaimer: http://www.kuleuven.be/cwis/email_disclaimer.htm