Re: task in start state

[debnathm]

Hi

I have the following state definition (fragment):

<process-definition>
<start-state name='start'>
<task name='StartStateTask'>
<controller>
<variable access='read,write,required' name='variable1' mapped-name='Var1'></variable>
</controller>
</task>
<transition to='task-node1' name='to_task_node1'></transition>
</start-state>
...

I use the following code to create a process Instance:

ProcessDefinition processDefinition = ProcessDefinition.parseXmlString(
<xml string above>);

ProcessInstance processInstance = new ProcessInstance(processDefinition);


Later, I call the following code:

TaskMgmtInstance taskmgmtInstance = processInstance.getTaskMgmtInstance();
Token token = processInstance.getRootToken();
if (taskmgmtInstance.hasUnfinishedTasks(token) == false)
{
...
}
else
{
...
}

However, even though the start state has a task, it seems to
enter the "if" block, not the "else" part.

Any suggestions would be appreciated.

Thanks,

Debnath

[kukeltje]

please create a unit test that demonstrates the problem

[debnathm]

Hi

Here is the JUnit test case. Please check if the APIs have
been used correctly

Thanks,

Debnath

package org.jbpm.tutorial.startstatetask;

import org.jbpm.graph.def.ProcessDefinition;
import org.jbpm.graph.exe.ProcessInstance;
import org.jbpm.graph.exe.Token;
import org.jbpm.taskmgmt.exe.TaskMgmtInstance;

import junit.framework.TestCase;

public class StartStateTask extends TestCase {
 public void testStartStateTask() {

 ProcessDefinition processDefinition = ProcessDefinition.parseXmlString(
 "<process-definition> " +
 " <start-state name='start'>" +
 " <task name='StartStateTask'> " +
 " <controller> " +
 " <variable access='read,write,required' name='variable1' mapped-name='Var1'></variable> " +
 " </controller> " +
 " </task> " +
 " <transition to='task-node1' name='to_task_node1'></transition>" +
 " </start-state> " +
 " <task-node name='task-node1'> " +
 " <task name='SecondTask'>" +
 " <controller> " +
 " <variable access='read,write,required' name='variable2' mapped-name='Var2'></variable>" +
 " </controller> " +
 " </task> " +
 "<transition to='end' name='to_end'></transition>" +
 "</task-node>" +
 "<end-state name='end'></end-state>" +
 "</process-definition>");

 ProcessInstance processInstance =
 new ProcessInstance(processDefinition);

 Token token = processInstance.getRootToken();
 TaskMgmtInstance taskmgmtInstance = processInstance.getTaskMgmtInstance();
 assertEquals(true, taskmgmtInstance.hasUnfinishedTasks(token));
 }

}

[kukeltje]

jbpm contains many unittests. If you look at the test (code below for convenience) you'll quickly see the difference

package org.jbpm.taskmgmt.exe;

import org.jbpm.graph.def.ProcessDefinition;
import org.jbpm.graph.exe.ProcessInstance;

import junit.framework.TestCase;

public class StartTaskTest extends TestCase {

 public void testStartTaskPresent() {
 ProcessDefinition processDefinition = ProcessDefinition.parseXmlString(
 "<process-definition>" +
 " <start-state>" +
 " <task name='lets get it started' />" +
 " <transition to='going steady' />" +
 " </start-state>" +
 " <state name='going steady' />" +
 "</process-definition>"
 );

 ProcessInstance processInstance = new ProcessInstance(processDefinition);

 TaskInstance taskInstance = processInstance.getTaskMgmtInstance().createStartTaskInstance();
 assertNotNull(taskInstance);
 assertEquals("lets get it started", taskInstance.getName());
 taskInstance.end();

 assertEquals("going steady", processInstance.getRootToken().getNode().getName());
 }

 public void testStartTaskAbsent() {
 ProcessDefinition processDefinition = ProcessDefinition.parseXmlString(
 "<process-definition>" +
 " <start-state>" +
 " <transition to='going steady' />" +
 " </start-state>" +
 " <state name='going steady' />" +
 "</process-definition>"
 );

 ProcessInstance processInstance = new ProcessInstance(processDefinition);

 TaskInstance taskInstance = processInstance.getTaskMgmtInstance().createStartTaskInstance();
 assertNull(taskInstance);
 }

}

[debnathm]

It worked. Thanks,

Debnath

[kukeltje]

you see... there is so much documentation and api examples....