[rules-users] Why a split node constraint always is true.

[liuzhikun]

Fllow rule flow split node toNodeId=2 always is true.Please help me.

<process >
 <header>
  <imports>
   <import name="t2.state.User"/>
  </imports>
  <variables>
    <variable name="user" >
      <type name="org.drools.process.core.datatype.impl.type.ObjectDataType" className="User" />
    </variable>
  </variables>
 </header>
 
 <nodes>
  <start id="1" name="Start"/>
  <join id="2" name="Restart" type="2"/>
  <actionNode id="3" name="changeAge">
   <action type="expression" dialect="mvel">System.out.println("age: "+user.age);System.in.read();user.age+=1;</action>
  </actionNode>
  <split id="4" name="decide" type="2">
   <constraints>
    <constraint toNodeId="2" toType="DROOLS_DEFAULT" name="go to rest" type="rule" priority="1" dialect="mvel">User(age &lt; 3)</constraint>
    <constraint toNodeId="100" toType="DROOLS_DEFAULT" name="go to end" type="rule" priority="2" dialect="mvel">eval(true)</constraint>
   </constraints>
  </split>
  <end id="100" name="End"/>
 </nodes>
 
 <connections>
  <connection from="1" to="2"/>
  <connection from="2" to="3"/>
  <connection from="3" to="4"/>
  <connection from="4" to="2"/>
  <connection from="4" to="100"/>
 </connections>
 
</process>




liuzhikun
2009-10-30
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