Need help with action config-type field and List property

[michaelholtzman]

I have an action that requires a List property to be populated in the process definition.

<node name="InitializeVariables">
 <action class="com.olf.workflowmgr.action.VariableInitActionHandler">
 <VarList>TranNum|Int|</VarList>
 <VarList>InExcession|Boolean|False</VarList>
 <VarList>Approved|Boolean|False</VarList>
 </action>
 <transition name="StartProcess" to="Summary" />
 </node>

And the corresponding action class:

public class VariableInitActionHandler implements ActionHandler {

 private static final long serialVersionUID = 1L;

 private List VarList;

 public void execute(ExecutionContext executionContext) {

 log.info("Processing variables...");
 for (Iterator it = VarList.iterator(); it.hasNext();) {
 String varDef = (String)it.next();
 log.info(varDef);
 }
 log.info("Finished");

 executionContext.leaveNode();
 } // execute

 private static final Log log = LogFactory.getLog(VariableInitActionHandler.class);

}

My list (VarList) is not being set. Can someone post an example of setting a multi-valued field from the process definition? Thanx.

[enazareno]

Hi,

Have you tried

 private String[] VarList;

instead? Not sure if this works but I also would like to know. Thanks.

Regards,

Elmo

[michaelholtzman]

Nope, String[] did NOT work:

14:39:14,851 ERROR FieldInstantiator : couldn't parse the bean property value '<VarList>Approved|Boolean|False</VarList>
' to a '[Ljava.lang.String;'
14:39:14,851 ERROR FieldInstantiator : couldn't parse set field 'VarList' to value '<VarList>Approved|Boolean|False</VarList>'
org.jbpm.JbpmException: java.lang.NoSuchMethodException: [Ljava.lang.String;.<init>(java.lang.String)

It did, at least, complain :)

Surely someone has figured this out? Anyone?

Thanx.

[michaelholtzman]

Got it!!

The field xml to populate a List must be specified as

<node name="InitializeVariables">
 <action class="com.olf.workflowmgr.action.VariableInitActionHandler">
 <VarList>
 <el>TranNum|Int|</el>
 <el>InExcession|Boolean|False</el>
 <el>Approved|Boolean|False</el>
 </VarList>
 </action>
 <transition name="StartProcess" to="Summary" />
 </node>

The inner element name ("el" in this example) is arbitrary.