Examples of org.jbpm.JbpmContext

org.jbpm.JbpmContext
ase you update a process object that was not fetched // with a ...ForUpdate method, you have to save it. jbpmContext.save(processInstance); finally { jbpmContext.close(); }
A JbpmContext separates jBPM from a sprecific environment. For each service that jBPM uses, there is an interface specified in the jBPM codebase. jBPM also includes implementations that implement these services by using services in a specific environment. e.g. a hibernate session, a JMS asynchronous messaging system, ...

A JbpmContext can demarcate a transaction. When a PersistenceService is fetched from the JbpmContext, the default implementation for the persistence service will create a hibernate session and start a transaction. So that transactions can be configured in the hibernate configuration.

A JbpmContext allows the user to overwrite (or make complete) the configuration by injecting objects programmatically. like e.g. a hibernate session factory or a hibernate session or any other resource that can be fetched or created from the configuration.

Last but not least, JbpmContext provides convenient access to the most common operations such as {@link #getTaskList(String)}, {@link #newProcessInstance(String)}{@link #loadTaskInstanceForUpdate(long)} and {@link #save(ProcessInstance)}.

All the ...ForUpdate(...) methods will automatically save the loaded objects at jbpmContext.close();


  public String signal() {


    selectToken();


    JbpmContext jbpmContext = JbpmContext.getCurrentJbpmContext();
    GraphSession graphSession = jbpmContext.getGraphSession();


    Token token = graphSession.loadToken(this.tokenInstanceId);


    if (token.getNode().getLeavingTransitions().size() > 1) {
      initializeAvailableTransitions(token);

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    String transitionName;


    transitionName = JsfHelper.getParameter("transitionName");
    ProcessInstance processInstance = null;


    JbpmContext jbpmContext = JbpmContext.getCurrentJbpmContext();
    if (this.taskInstanceId > 0) {
      TaskMgmtSession taskMgmtSession = jbpmContext.getTaskMgmtSession();
      TaskInstance taskInstance = taskMgmtSession.loadTaskInstance(this.taskInstanceId);
      if (transitionName.equals("")) {
        taskInstance.end();
      } else {
        taskInstance.end(transitionName);
      }
      processInstance = taskInstance.getToken().getProcessInstance();
    } else if (this.tokenInstanceId > 0) {
      GraphSession graphSession = jbpmContext.getGraphSession();
      Token token = graphSession.loadToken(this.tokenInstanceId);
      if (transitionName.equals("")) {
        token.signal();
      } else {
        token.signal(transitionName);
      }
      processInstance = token.getProcessInstance();
    }


    jbpmContext.save(processInstance);


    this.initializeTasksList(processInstance);
    this.initializeTokensList(processInstance);


    return "inspectInstance";

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  public String endTask() {


    selectTask();


    JbpmContext jbpmContext = JbpmContext.getCurrentJbpmContext();
    TaskMgmtSession taskMgmtSession = jbpmContext.getTaskMgmtSession();


    TaskInstance taskInstance = taskMgmtSession.loadTaskInstance(this.taskInstanceId);


    if (taskInstance.getAvailableTransitions().size() > 1) {
      initializeAvailableTransitions(taskInstance);
      return "showTransitions";
    }


    taskInstance.end();


    ProcessInstance processInstance = taskInstance.getToken().getProcessInstance();
    jbpmContext.save(processInstance);


    this.initializeTasksList(processInstance);
    this.initializeTokensList(processInstance);


    return "";

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    return EqualsUtil.equals(this, o);
  }
  
  protected Service getService(String serviceName) {
    Service service = null;
    JbpmContext jbpmContext = JbpmContext.getCurrentJbpmContext();
    if (jbpmContext!=null) {
      service = jbpmContext.getServices().getService(serviceName);
    }
    return service; 
  }

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    jbpmConfiguration.createSchema();
    connection.commit();
    connection.close();
    
    connection = DriverManager.getConnection("jdbc:hsqldb:.");
    JbpmContext jbpmContext = jbpmConfiguration.createJbpmContext();
    jbpmContext.setConnection(connection);
    ProcessDefinition processDefinition = ProcessDefinition.parseXmlString(
      "<process-definition name='hello' />"
    );
    jbpmContext.deployProcessDefinition(processDefinition);
    jbpmContext.close();
    connection.commit();
    connection.close();


    connection = DriverManager.getConnection("jdbc:hsqldb:.");
    jbpmContext = jbpmConfiguration.createJbpmContext();
    jbpmContext.setConnection(connection);
    jbpmContext.newProcessInstanceForUpdate("hello");
    jbpmContext.close();
    connection.commit();
    connection.close();
  }

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    processInstance = saveAndReload(processInstance);
    processInstance.signal();
    jbpmContext.save(processInstance);
    
    JbpmContext concurrentContext = jbpmConfiguration.createJbpmContext();
    ProcessInstance sameProcessInstanceInDifferentSession = concurrentContext.loadProcessInstance(processInstance.getId());
    sameProcessInstanceInDifferentSession.end();
    concurrentContext.save(sameProcessInstanceInDifferentSession);
    log.debug("closing concurrent context");
    concurrentContext.close();
    
    try {
      log.debug("closing default test method context");
      commitAndCloseSession();
      fail("expected exception");

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      "</jbpm-configuration>"
    );
    
    DbPersistenceServiceFactory dbPersistenceServiceFactory = (DbPersistenceServiceFactory) jbpmConfiguration.getServiceFactory("persistence");
    assertFalse(dbPersistenceServiceFactory.isTransactionEnabled());
    JbpmContext jbpmContext = (JbpmContext) jbpmConfiguration.createJbpmContext();
    try {
      DbPersistenceService dbPersistenceService = (DbPersistenceService) jbpmContext.getServices().getPersistenceService();
      assertFalse(dbPersistenceService.isTransactionEnabled());
      assertNull(dbPersistenceService.getTransaction());
    } finally {
      jbpmContext.close();
    }
  }

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      "  <string name='resource.hibernate.properties' value='org/jbpm/persistence/db/custom.hibernate.properties' />" +
      "</jbpm-configuration>"
    );
    
    DbPersistenceServiceFactory dbPersistenceServiceFactory = (DbPersistenceServiceFactory) jbpmConfiguration.getServiceFactory("persistence");
    JbpmContext jbpmContext = (JbpmContext) jbpmConfiguration.createJbpmContext();
    try {
      DbPersistenceService dbPersistenceService = (DbPersistenceService) jbpmContext.getServices().getPersistenceService();
      assertEquals(0, dbPersistenceService.getSessionFactory().getAllClassMetadata().size());
      assertEquals("org.hibernate.dialect.PostgreSQLDialect", dbPersistenceServiceFactory.configuration.getProperty("hibernate.dialect"));
    } finally {
      jbpmContext.close();
    }
  }

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    this.version = version;
    this.instancesCount = instancesCount;
  }


  private void initialize() {
    JbpmContext jbpmContext = JbpmContext.getCurrentJbpmContext();
    GraphSession graphSession = jbpmContext.getGraphSession();
    ProcessDefinition processDefinition = graphSession.loadProcessDefinition(id);
    this.name = processDefinition.getName();
    this.version = processDefinition.getVersion();
    this.instancesCount = graphSession.findProcessInstances(this.id).size();
  }

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    this.instancesCount = graphSession.findProcessInstances(this.id).size();
  }


  public List getProcessInstances() {


    JbpmContext jbpmContext = JbpmContext.getCurrentJbpmContext();
    GraphSession graphSession = jbpmContext.getGraphSession();


    ArrayList processInstancesList = new ArrayList();


    List listProcessInstance = graphSession.findProcessInstances(this.id);

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