14.3. jBPM プロセス定義からのルールの使用

<decision name="approval">         
  <handler class="org.jboss.seam.drools.DroolsDecisionHandler">
    <workingMemoryName>orderApprovalRulesWorkingMemory</workingMemoryName>
    <assertObjects>
      <element>#{customer}</element>
      <element>#{order}</element>
      <element>#{order.lineItems}</element>
    </assertObjects>
  </handler>
    
  <transition name="approved" to="ship">
    <action class="org.jboss.seam.drools.DroolsActionHandler">
      <workingMemoryName>shippingRulesWorkingMemory</workingMemoryName>
      <assertObjects>
        <element>#{customer}</element>
        <element>#{order}</element>
        <element>#{order.lineItems}</element>
      </assertObjects>
    </action>
  </transition>  
  <transition name="rejected" to="cancelled"/> 
</decision>

<task-node name="review">
  <task name="review" description="Review Order">
    <assignment handler="org.jboss.seam.drools.DroolsAssignmentHandler">
      <workingMemoryName>
        orderApprovalRulesWorkingMemory
      </workingMemoryName>
      <assertObjects>
        <element>#{actor}</element>
        <element>#{customer}</element>
        <element>#{order}</element>
        <element>#{order.lineItems}</element>
      </assertObjects>
    </assignment>
  </task>
  <transition name="rejected" to="cancelled"/>
  <transition name="approved" to="approved"/>
</task-node>

package org.jboss.seam.examples.shop
import org.jboss.seam.drools.Decision 
global Decision decision 
rule "Approve Order For Loyal Customer" 
  when 
    Customer( loyaltyStatus == "GOLD" ) 
    Order( totalAmount <= 10000 ) 
  then 
    decision.setOutcome("approved"); 
end

package org.jboss.seam.examples.shop 
import org.jbpm.taskmgmt.exe.Assignable 
global Assignable assignable 
rule "Assign Review For Small Order" 
  when 
    Order( totalAmount <= 100 ) 
  then 
    assignable.setPooledActors( new String[] {"reviewers"} ); 
end