Example usage for org.hibernate Session getCacheMode

Introduction

In this page you can find the example usage for org.hibernate Session getCacheMode.

Prototype

CacheMode getCacheMode();

Source Link

Document

Get the current cache mode.

Usage

From source file:org.alfresco.repo.workflow.jbpm.JBPMEngine.java

License:Open Source License

@SuppressWarnings("unchecked")
public List<WorkflowInstance> cancelWorkflows(final List<String> workflowIds) {
    return (List<WorkflowInstance>) jbpmTemplate.execute(new JbpmCallback() {
        public Object doInJbpm(JbpmContext context) {
            // Bypass the cache making sure not to flush it
            Session session = context.getSession();
            CacheMode cacheMode = session.getCacheMode();
            FlushMode flushMode = session.getFlushMode();
            session.setCacheMode(CacheMode.GET);
            session.setFlushMode(FlushMode.MANUAL);
            try {
                List<WorkflowInstance> workflowInstances = new ArrayList<WorkflowInstance>(workflowIds.size());
                Map<String, ProcessInstance> processInstances = new HashMap<String, ProcessInstance>(
                        workflowIds.size() * 2);
                GraphSession graphSession = context.getGraphSession();

                // retrieve and cancel process instances
                for (String workflowId : workflowIds) {
                    try {
                        ProcessInstance processInstance = getProcessInstance(graphSession, workflowId);
                        processInstance.getContextInstance().setVariable("cancelled", true);
                        processInstance.end();
                        processInstances.put(workflowId, processInstance);
                    } catch (JbpmException e) {
                        String msg = messageService.getMessage(ERR_CANCEL_WORKFLOW, workflowId);
                        throw new WorkflowException(msg, JbpmAccessor.convertJbpmException(e));
                    }/*from  w ww .  j a  v a 2  s. c  o m*/
                }

                // Flush at the end of the batch
                session.flush();

                for (String workflowId : workflowIds) {
                    try {
                        // retrieve process instance
                        ProcessInstance processInstance = processInstances.get(workflowId);
                        // TODO: Determine if this is the most appropriate way to cancel workflow...
                        //       It might be useful to record point at which it was cancelled etc
                        try {
                            workflowInstances.add(createWorkflowInstance(processInstance));
                        } catch (Exception ex) {
                            logger.warn("Unable to load workflow instance: '" + processInstance
                                    + "' due to exception.", ex);
                        }

                        // delete the process instance
                        graphSession.deleteProcessInstance(processInstance, true, true);
                    } catch (JbpmException e) {
                        String msg = messageService.getMessage(ERR_CANCEL_WORKFLOW, workflowId);
                        throw new WorkflowException(msg, JbpmAccessor.convertJbpmException(e));
                    }
                }

                // Flush at the end of the batch
                session.flush();
                return workflowInstances;
            } finally {
                session.setCacheMode(cacheMode);
                session.setFlushMode(flushMode);
            }
        }
    });
}

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From source file:org.alfresco.repo.workflow.jbpm.JBPMEngine.java

License:Open Source License

@SuppressWarnings("unchecked")
public List<WorkflowTask> queryTasks(final WorkflowTaskQuery query, final boolean sameSession) {
    try {/*from w w w. j  a v  a  2s.co  m*/
        return (List<WorkflowTask>) jbpmTemplate.execute(new JbpmCallback() {
            public List<WorkflowTask> doInJbpm(JbpmContext context) {
                // Bypass the cache making sure not to flush it
                Session session = context.getSession();
                CacheMode cacheMode = session.getCacheMode();
                try {
                    session.setCacheMode(CacheMode.GET);
                    Criteria criteria = createTaskQueryCriteria(session, query);
                    List<TaskInstance> tasks = criteria.list();
                    return getWorkflowTasks(tasks, sameSession);
                } finally {
                    session.setCacheMode(cacheMode);
                }
            }
        });
    } catch (JbpmException e) {
        String msg = messageService.getMessage(ERR_QUERY_TASKS, query);
        throw new WorkflowException(msg, e);
    }
}

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From source file:org.alfresco.repo.workflow.jbpm.JBPMEngine.java

License:Open Source License

@SuppressWarnings("unchecked")
public List<WorkflowTask> getStartTasks(final List<String> workflowInstanceIds, final boolean sameSession) {
    try {/*from  ww w .j a va 2 s  . c om*/
        return (List<WorkflowTask>) jbpmTemplate.execute(new JbpmCallback() {
            public Object doInJbpm(JbpmContext context) {
                List<Long> jbpmIds = new ArrayList<Long>(workflowInstanceIds.size());
                Set<String> startTaskNames = new TreeSet<String>();
                for (String workflowInstanceId : workflowInstanceIds) {
                    // retrieve process instance
                    GraphSession graphSession = context.getGraphSession();
                    ProcessInstance processInstance = getProcessInstanceIfExists(graphSession,
                            workflowInstanceId);
                    if (processInstance != null) {
                        jbpmIds.add(processInstance.getId());
                        Task startTask = processInstance.getProcessDefinition().getTaskMgmtDefinition()
                                .getStartTask();
                        startTaskNames.add(startTask.getName());
                    }
                }

                if (jbpmIds.isEmpty()) {
                    return Collections.emptyList();
                }

                // retrieve tasks
                Session session = context.getSession();
                Criteria taskCriteria = session.createCriteria(TaskInstance.class);
                taskCriteria.add(Restrictions.in("name", startTaskNames));
                Criteria process = taskCriteria.createCriteria("processInstance");
                process.add(Restrictions.in("id", jbpmIds));

                // Bypass the cache making sure not to flush it
                CacheMode cacheMode = session.getCacheMode();
                try {
                    session.setCacheMode(CacheMode.GET);
                    List<TaskInstance> tasks = process.list();
                    return getWorkflowTasks(tasks, sameSession);
                } finally {
                    session.setCacheMode(cacheMode);
                }
            }
        });
    } catch (JbpmException e) {
        String msg = messageService.getMessage(ERR_QUERY_TASKS, workflowInstanceIds);
        throw new WorkflowException(msg, e);
    }
}

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From source file:org.hyperic.hq.events.server.session.EventLogDAO.java

License:Open Source License

/**
 * Insert the event logs in batch, with batch size specified by the
 * <code>hibernate.jdbc.batch_size</code> configuration property.
 * /* ww w .j a  va2 s .  com*/
 * @param eventLogs The event logs to insert.
 */
void insertLogs(EventLog[] eventLogs) {
    Session session = getSession();

    FlushMode flushMode = session.getFlushMode();
    CacheMode cacheMode = session.getCacheMode();

    try {
        session.setFlushMode(FlushMode.MANUAL);

        // We do not want to update the 2nd level cache with these event
        // logs
        session.setCacheMode(CacheMode.IGNORE);

        for (int i = 0; i < eventLogs.length; i++) {
            create(eventLogs[i]);
        }

        session.flush();
        session.clear();
    } finally {
        session.setFlushMode(flushMode);
        session.setCacheMode(cacheMode);
    }
}

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From source file:org.xchain.namespaces.hibernate.DebugSessionCommand.java

License:Apache License

private void logSession(Session session) {
    log.debug("Connected, Dirty, Open:  {}",
            new boolean[] { session.isConnected(), session.isDirty(), session.isOpen() });
    log.debug("CacheMode:  {}", session.getCacheMode().toString());
    log.debug("EntityMode: {}", session.getEntityMode().toString());
    log.debug("FlushMode:  {}", session.getFlushMode().toString());
}

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