create a task without task node

[abhikal]

hi
i am trying to understand the work flow of websale demo.
Please help me to know that how to create task in the state when no task node tag is given.

<process-definition name="pay raise process">
 <swimlane name="requester" />
 <swimlane name="boss">
 <delegation class="ActorAssignmentHandler">cg</delegation>
 </swimlane>

 <swimlane name="erp operator">
 <delegation class="ActorAssignmentHandler">pf</delegation>
 </swimlane>


 <start-state name="request a payraise">
 <transition to="evaluating">
 </transition>
 </start-state>

 <state name="evaluating">
 <assignment swimlane="boss" />
 <transition name="approve" to="fork"></transition>
 <transition name="disapprove" to="done"></transition>
 </state>


 <fork name="fork">
 <transition to="updating erp asynchronously"></transition>
 <transition to="treating collegues on cake and pie"></transition>
 </fork>


 <state name="updating erp asynchronously">
 <assignment swimlane="erp operator" />
 <transition to="join"></transition>
 </state>

 <state name="treating collegues on cake and pie">
 <assignment swimlane="requester" />
 <transition to="join"></transition>
 </state>


 <join name="join">
 <transition to="done"></transition>
 </join>


 <end-state name="done"></end-state>

</process-definition>

CODE IS

public class WebSale
{

 static JbpmSessionFactory jsf =
 JbpmSessionFactory.buildJbpmSessionFactory();

 static
 {
 jsf.getJbpmSchema().createSchema();
 }


 public WebSale()
 {

 ProcessDefinition pd =ProcessDefinition.parseXmlResource("sale2.par/processdefinition.xml" );
 JbpmSession js = jsf.openJbpmSession();
 js.beginTransaction();
 js.getGraphSession().saveProcessDefinition(pd);
 js.commitTransaction();
 js.close();

 }

 public void func1()
 {

 JbpmSession js = jsf.openJbpmSession();
 js.beginTransaction();
 ProcessDefinition pd =js.getGraphSession()
 .findLatestProcessDefinition("pay raise process");

 ProcessInstance pi = new ProcessInstance(pd);

 ContextInstance ci =pi.getContextInstance();
 ci.setVariable("amount", new Integer(500));
 ci.setVariable("reason", "i met my deadline");


 System.out.println("-----"+pi.getRootToken().getNode().getName());
 pi.signal();

 Collection tasks = pi.getTaskMgmtInstance().getTaskInstances();
 if(tasks!=null)
 {
 for (Iterator taskIterator =
 tasks.iterator (); taskIterator.hasNext();)
 {
 TaskInstance task = (TaskInstance)
 tasks.iterator().next ();
 System.out.println("+++++========"+ equals(task.getName()));
 }
 }



 System.out.println("-----"+pi.getRootToken().getNode().getName());

 js.getGraphSession().saveProcessInstance(pi);
 js.commitTransaction();
 js.close();

 }

 public void func2()
 {

 JbpmSession js = jsf.openJbpmSession();
 js.beginTransaction();
 ProcessDefinition pd =js.getGraphSession()
 .findLatestProcessDefinition("pay raise process");

 GraphSession graphSession = js.getGraphSession();

 List all_pi=graphSession.findProcessInstances(pd.getId());
 System.out.println("+++++"+ all_pi);
 ProcessInstance pi =(ProcessInstance) all_pi.get(0);


 ContextInstance ci =pi.getContextInstance();
 System.out.println(" AMOUNT ###="+ci.getVariable("amount"));
 System.out.println(" REASON ###="+ci.getVariable("reason"));


 System.out.println("-----"+pi.getRootToken().getNode().getName());
 pi.signal();

 System.out.println("-----"+pi.getRootToken().getNode().getName());


 pi.signal();
 System.out.println("-----"+pi.getRootToken().getNode().getName());

 pi.signal();
 System.out.println("-----"+pi.getRootToken().getNode().getName());

 pi.signal();
 System.out.println("-----"+pi.getRootToken().getNode().getName());


 js.getGraphSession().saveProcessInstance(pi);
 js.commitTransaction();
 js.close();
 }
 public static void main(String a[])
 {
 WebSale sale=new WebSale();
 System.out.println("Going to start the process");
 sale.func1();
 sale.func2();
 }
}