Examples of org.jbpm.graph.exe.Token

org.jbpm.graph.exe.Token
represents one path of execution and maintains a pointer to a node in the {@link org.jbpm.graph.def.ProcessDefinition}. Most common way to get a hold of the token objects is with {@link ProcessInstance#getRootToken()} or {@link org.jbpm.graph.exe.ProcessInstance#findToken(String)}.

      "  </task-node>" +
      "  <state name='b' />" +
      "</process-definition>"
    );
    ProcessInstance processInstance = new ProcessInstance(processDefinition);
    Token token = processInstance.getRootToken();
    processInstance.signal();
    assertSame(processDefinition.getNode("a"), token.getNode());
    try {
      processInstance.signal();
      fail("expected exception");
    } catch (IllegalStateException e) {
      // OK

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      "  <state name='a' />" +
      "  <state name='b' />" +
      "</process-definition>"
    );
    ProcessInstance processInstance = new ProcessInstance(processDefinition);
    Token token = processInstance.getRootToken();
    processInstance.signal();
    assertSame(processDefinition.getNode("t"), token.getNode());


    TaskMgmtInstance tmi = (TaskMgmtInstance) processInstance.getInstance(TaskMgmtInstance.class);
    TaskInstance taskInstance = (TaskInstance) tmi.getUnfinishedTasks(token).iterator().next();
    taskInstance.end("messed all over the floor");
    
    assertSame(processDefinition.getNode("b"), token.getNode());
  }

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      "  <state name='a' />" +
      "  <state name='b' />" +
      "</process-definition>"
    );
    ProcessInstance processInstance = new ProcessInstance(processDefinition);
    Token token = processInstance.getRootToken();
    processInstance.signal();
    assertSame(processDefinition.getNode("t"), token.getNode());


    TaskMgmtInstance tmi = (TaskMgmtInstance) processInstance.getInstance(TaskMgmtInstance.class);
    TaskInstance taskInstance = (TaskInstance) tmi.getUnfinishedTasks(token).iterator().next();
    
    Transition messedTransition = processDefinition.getNode("t").getLeavingTransition("messed all over the floor");
    taskInstance.end(messedTransition);
    
    assertSame(processDefinition.getNode("b"), token.getNode());
  }

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      "    <task name='change nappy' priority='highest' />" +
      "  </task-node>" +
      "</process-definition>"
    );
    ProcessInstance processInstance = new ProcessInstance(processDefinition);
    Token token = processInstance.getRootToken();
    processInstance.signal();
    assertSame(processDefinition.getNode("t"), token.getNode());


    TaskMgmtInstance tmi = (TaskMgmtInstance) processInstance.getInstance(TaskMgmtInstance.class);
    TaskInstance taskInstance = (TaskInstance) tmi.getUnfinishedTasks(token).iterator().next();
    
    assertEquals(Task.PRIORITY_HIGHEST, taskInstance.getPriority());

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      "    <task name='change nappy' priority='1' />" +
      "  </task-node>" +
      "</process-definition>"
    );
    ProcessInstance processInstance = new ProcessInstance(processDefinition);
    Token token = processInstance.getRootToken();
    processInstance.signal();
    assertSame(processDefinition.getNode("t"), token.getNode());


    TaskMgmtInstance tmi = (TaskMgmtInstance) processInstance.getInstance(TaskMgmtInstance.class);
    TaskInstance taskInstance = (TaskInstance) tmi.getUnfinishedTasks(token).iterator().next();
    
    assertEquals(1, taskInstance.getPriority());

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    jbpmContext.save(breadTaskInstance);
    long breadTokenId = breadTaskInstance.getToken().getId();


    newTransaction();


    Token breadToken = jbpmContext.loadToken(breadTokenId);
    ContextInstance contextInstance = breadToken.getProcessInstance().getContextInstance();
    assertNull(contextInstance.getVariable("hero", breadToken));


    newTransaction();


    breadTaskInstance = jbpmContext.loadTaskInstance(breadTaskInstance.getId());
    assertEquals("asterix", breadTaskInstance.getVariable("hero"));


    newTransaction();


    TaskInstance monopolyTaskInstance = findTask("play monopoly");
    monopolyTaskInstance.setVariable("hero", "obelix");
    jbpmContext.save(monopolyTaskInstance);
    long monopolyTokenId = monopolyTaskInstance.getToken().getId();


    newTransaction();


    monopolyTaskInstance = jbpmContext.loadTaskInstance(monopolyTaskInstance.getId());
    assertEquals("obelix", monopolyTaskInstance.getVariable("hero"));


    newTransaction();


    Token monopolyToken = jbpmContext.loadToken(monopolyTokenId);
    contextInstance = monopolyToken.getProcessInstance().getContextInstance();
    assertNull(contextInstance.getVariable("hero", monopolyToken));
    
    newTransaction();
    
    breadTaskInstance = jbpmContext.loadTaskInstanceForUpdate(breadTaskInstance.getId());

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      "  <state name='first things first' />" +
      "</process-definition>"
    );
    
    ProcessInstance processInstance = new ProcessInstance(processDefinition);
    Token rootToken = processInstance.getRootToken();
    processInstance.signal();
    List unfinishedTasks = new ArrayList(processInstance.getTaskMgmtInstance().getUnfinishedTasks(rootToken));
    assertNotNull(unfinishedTasks);
    assertEquals(1, unfinishedTasks.size());
    TaskInstance startTaskInstance = (TaskInstance) unfinishedTasks.get(0);

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      "  <state name='first things first' />" +
      "</process-definition>"
    );
    
    ProcessInstance processInstance = new ProcessInstance(processDefinition);
    Token rootToken = processInstance.getRootToken();
    processInstance.signal();
    List unfinishedTasks = new ArrayList(processInstance.getTaskMgmtInstance().getUnfinishedTasks(rootToken));
    assertNotNull(unfinishedTasks);
    assertEquals(1, unfinishedTasks.size());
    TaskInstance startTaskInstance = (TaskInstance) unfinishedTasks.get(0); 
    startTaskInstance.end("relaxed");


    Node ftf = processDefinition.getNode("first things first");
    assertEquals(ftf, rootToken.getNode());
  }

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      "  <state name='next phase' />" +
      "</process-definition>"
    );
    
    ProcessInstance processInstance = new ProcessInstance(processDefinition);
    Token rootToken = processInstance.getRootToken();
    processInstance.signal();


    assertEquals("review", rootToken.getNode().getName());
    
    Collection unfinishedTasks = processInstance.getTaskMgmtInstance().getUnfinishedTasks(rootToken);
    assertNotNull(unfinishedTasks);
    assertEquals(3, unfinishedTasks.size());
    TaskInstance taskInstance = findTaskInstance("primary review", unfinishedTasks); 
    taskInstance.end();


    assertEquals("review", rootToken.getNode().getName());


    unfinishedTasks = processInstance.getTaskMgmtInstance().getUnfinishedTasks(rootToken);
    assertNotNull(unfinishedTasks);
    assertEquals(2, unfinishedTasks.size());
    taskInstance = findTaskInstance("required secondary review", unfinishedTasks); 
    taskInstance.end();


    assertEquals("next phase", rootToken.getNode().getName());
  }

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public class RuntimeTaskCreationTest extends TestCase {
  
  public static class CreateTasks implements ActionHandler {
    private static final long serialVersionUID = 1L;
    public void execute(ExecutionContext executionContext) throws Exception {
      Token token = executionContext.getToken();
      TaskMgmtInstance tmi = executionContext.getTaskMgmtInstance();
      
      TaskNode taskNode = (TaskNode) executionContext.getNode();
      Task changeNappy = taskNode.getTask("change nappy");

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