July 2010 - jboss-dev-forums - Jboss List Archives

Re: [jboss-dev-forums] [jBPM Development] - Using expression as process duedate value

by Zhangqi Xiao

Zhangqi Xiao [http://community.jboss.org/people/Xiaozhangqi] replied to the discussion "Using expression as process duedate value" To view the discussion, visit: http://community.jboss.org/message/551832#551832 -------------------------------------------------------------- Hi HuiSheng, Is it still need me to open an issue on this problem? in fact I didn't find link to report issue. :D -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/551832#551832] Start a new discussion in jBPM Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 10 months

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Re: [jboss-dev-forums] [jBPM Development] - Using expression as process duedate value

by HuiSheng Xu

HuiSheng Xu [http://community.jboss.org/people/rebody] replied to the discussion "Using expression as process duedate value" To view the discussion, visit: http://community.jboss.org/message/551822#551822 -------------------------------------------------------------- Hi Maciej, Test passed. Good work. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/551822#551822] Start a new discussion in jBPM Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 10 months

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Re: [jboss-dev-forums] [jBPM Development] - JBPM-2792 allow update with hql/sql

by HuiSheng Xu

HuiSheng Xu [http://community.jboss.org/people/rebody] replied to the discussion "JBPM-2792 allow update with hql/sql" To view the discussion, visit: http://community.jboss.org/message/551819#551819 -------------------------------------------------------------- Hi Maciej, I think the Hql/Sql activity is intended to used by developers. People who want to use these activities should be familiar with how to write a hql/sql query. And they must know the database structures. So the developer-oriented activities could expose all of operations that hql/sql could do. Not only select, but also update/insert/delete. In my opinion, if we provide this feature in jBPM 4, it will be only used by developer, not end-user. So I think we could wait for other people's advices. :) -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/551819#551819] Start a new discussion in jBPM Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 10 months

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Re: [jboss-dev-forums] [jBPM Development] - JBPM-2792 allow update with hql/sql

by Maciej Swiderski

Maciej Swiderski [http://community.jboss.org/people/swiderski.maciej] replied to the discussion "JBPM-2792 allow update with hql/sql" To view the discussion, visit: http://community.jboss.org/message/551788#551788 -------------------------------------------------------------- Hi HuiSheng, in general it looks good, just have one comment - is it ok to allow update queries on jBPM schema? What would be a use case for this? Shouldn't we protect it and expose api for accessing it? -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/551788#551788] Start a new discussion in jBPM Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 10 months

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Re: [jboss-dev-forums] [jBPM Development] - Using expression as process duedate value

by Maciej Swiderski

Maciej Swiderski [http://community.jboss.org/people/swiderski.maciej] replied to the discussion "Using expression as process duedate value" To view the discussion, visit: http://community.jboss.org/message/551787#551787 -------------------------------------------------------------- Hi guys, please find attached patch for this issue. Please have a look at it and let me know you you think. Cheers -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/551787#551787] Start a new discussion in jBPM Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 10 months

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Re: [jboss-dev-forums] [jBPM Development] - Using expression as process duedate value

by HuiSheng Xu

HuiSheng Xu [http://community.jboss.org/people/rebody] replied to the discussion "Using expression as process duedate value" To view the discussion, visit: http://community.jboss.org/message/551706#551706 -------------------------------------------------------------- Hi Zhangqi, Good investigation. Could you open an issue on JIRA for this problem? Thank you very much. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/551706#551706] Start a new discussion in jBPM Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 10 months

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[jBPM Development] - JBPM-2792 allow update with hql/sql

by HuiSheng Xu

HuiSheng Xu [http://community.jboss.org/people/rebody] created the discussion "JBPM-2792 allow update with hql/sql" To view the discussion, visit: http://community.jboss.org/message/551658#551658 -------------------------------------------------------------- Hi guys, Here is an interesting issue. It allow we using update/insert/delete in hql/sql. I uploaded a patch and related testcase. Any comments will be appreciated. Thank you very much. https://jira.jboss.org/browse/JBPM-2792 https://jira.jboss.org/browse/JBPM-2792 -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/551658#551658] Start a new discussion in jBPM Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 10 months

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[jBPM Development] - Using expression as process duedate value

by Zhangqi Xiao

Zhangqi Xiao [http://community.jboss.org/people/Xiaozhangqi] created the discussion "Using expression as process duedate value" To view the discussion, visit: http://community.jboss.org/message/551657#551657 -------------------------------------------------------------- Hi all, When I configured process dudate as below, <?xml version="1.0" encoding="UTF-8"?> <process name="TimerRepeat" xmlns="http://jbpm.org/4.3/jpdl"> <on event="timeout"> <timer duedate="#{process_duedate}"/> <event-listener /> </on> <start g="19,50,48,48"> <transition to="guardedWait" /> </start> <state name="guardedWait" g="98,46,127,52"> <on event="timeout"> <timer duedate="#{node_duedate}"/> <event-listener /> </on> <transition name="go on" to="next step" g="-16,-17"/> </state> <state name="next step" g="283,46,83,53"/> </process> List 1 And I started process as: Map<String, String> variables = new HashMap<String, String>(); variables.put("process_duedate", "24 business minutes"); variables.put("node_duedate", "12 business minutes"); ProcessInstance processInstance = executionService.startProcessInstanceByKey("TimerRepeat", variables) List 2 But an exception happend as below: javax.script.ScriptException: javax.el.PropertyNotFoundException: Cannot find property process_duedate at org.jbpm.pvm.internal.script.JuelScriptEngine.evalExpr(JuelScriptEngine.java:180) at org.jbpm.pvm.internal.script.JuelScriptEngine.eval(JuelScriptEngine.java:64) at javax.script.AbstractScriptEngine.eval(AbstractScriptEngine.java:247) at org.jbpm.pvm.internal.script.ScriptManager.evaluate(ScriptManager.java:126) at org.jbpm.pvm.internal.script.ScriptManager.evaluate(ScriptManager.java:118) at org.jbpm.pvm.internal.script.ScriptManager.evaluateExpression(ScriptManager.java:90) at org.jbpm.pvm.internal.job.TimerImpl.setDueDateDescription(TimerImpl.java:76) at org.jbpm.pvm.internal.model.ScopeInstanceImpl.createTimer(ScopeInstanceImpl.java:303) at org.jbpm.pvm.internal.model.ScopeInstanceImpl.initializeTimers(ScopeInstanceImpl.java:323) at org.jbpm.pvm.internal.model.ExecutionImpl.initializeScopes(ExecutionImpl.java:238) at org.jbpm.pvm.internal.model.ExecutionImpl.start(ExecutionImpl.java:213) at org.jbpm.pvm.internal.cmd.StartProcessInstanceCmd.execute(StartProcessInstanceCmd.java:61) at org.jbpm.pvm.internal.cmd.StartProcessInstanceCmd.execute(StartProcessInstanceCmd.java:37) at org.jbpm.pvm.internal.svc.DefaultCommandService.execute(DefaultCommandService.java:42) at org.jbpm.pvm.internal.tx.SpringCommandCallback.doInTransaction(SpringCommandCallback.java:45) at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:128) at org.jbpm.pvm.internal.tx.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:55) at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.executeInNewEnvironment(EnvironmentInterceptor.java:53) at org.jbpm.pvm.internal.svc.EnvironmentInterceptor.execute(EnvironmentInterceptor.java:40) at org.jbpm.pvm.internal.svc.RetryInterceptor.execute(RetryInterceptor.java:55) at org.jbpm.pvm.internal.svc.ExecutionServiceImpl.startProcessInstanceById(ExecutionServiceImpl.java:58) List 3 In order to find the reason for this issue, I removed process duedate part from List 1, this resulting is: <?xml version="1.0" encoding="UTF-8"?> <process name="TimerRepeat" xmlns="http://jbpm.org/4.3/jpdl"> <start g="19,50,48,48"> <transition to="guardedWait" /> </start> <state name="guardedWait" g="98,46,127,52"> <on event="timeout"> <timer duedate="#{node_duedate}"/> <event-listener /> </on> <transition name="go on" to="next step" g="-16,-17"/> </state> <state name="next step" g="283,46,83,53"/> </process> List 4 Then I started process as below : Map<String, String> variables = new HashMap<String, String>(); variables.put(node_duedate, 12 business minutes); ProcessInstance processInstance = executionService.startProcessInstanceByKey(TimerRepeat, variables) List 5 To my surprised is there was no any error happened and the timer of guardedWait was correctly initialized. why? After my investigating,I found that when ScriptManger caculate expression value, it search from some context scopes,such as excution context,process engine context transactioon, spring context and so on. but when initialize the process timer duedate,the excution context has not been added to Environment, the source code from class ExecutionImpl as: public void start() { if (!STATE_CREATED.equals(state)) { throw new JbpmException(toString() + " is already begun: " + state); } this.state = STATE_ACTIVE_ROOT; ExecutionImpl scopedExecution = initializeScopes(); fire(Event.START, getProcessDefinition()); if (getActivity() != null) { scopedExecution.performAtomicOperation(AtomicOperation.EXECUTE_ACTIVITY); } } List 6 This " initializeScopes()" method is excuted before "scopedExecution.performAtomicOperation(AtomicOperation.EXECUTE_ACTIVITY);" if enter accitiy it is ok, but when start process,it is wrong. so I changed method "initializeProcessInstance" from class "ExecutionImpl" as below: public void initializeProcessInstance(ProcessDefinitionImpl processDefinition, String key) { setProcessDefinition(processDefinition); setActivity((ActivityImpl) processDefinition.getInitial()); this.processInstance = this; this.state = STATE_CREATED; this.key = key; save(); composeIds(); //Added by me to add excution context to environment ExecutionContext originalExecutionContext = null; ExecutionContext executionContext = null; EnvironmentImpl environment = EnvironmentImpl.getCurrent(); if (environment != null) { originalExecutionContext = (ExecutionContext) environment.getContext(Context.CONTEXTNAME_EXECUTION); if ((originalExecutionContext != null) && (originalExecutionContext.getExecution() == this)) { originalExecutionContext = null; } else { executionContext = new ExecutionContext(this); environment.setContext(executionContext); } //ended add } HistoryEvent.fire(new ProcessInstanceCreate(), this); } List 7 By doing so,when I configured process duedate as list1 and start process as list 2.it was ok! I konw the way I used is not the best one! but can any one tell me the best way or is it a bug need to be fixed? -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/551657#551657] Start a new discussion in jBPM Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 10 months

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Re: [jboss-dev-forums] [jBPM Development] - JBPM-1453 merge job notification of MessageSession and TimerSession

by HuiSheng Xu

HuiSheng Xu [http://community.jboss.org/people/rebody] replied to the discussion "JBPM-1453 merge job notification of MessageSession and TimerSession" To view the discussion, visit: http://community.jboss.org/message/551583#551583 -------------------------------------------------------------- Done, Checked in r6472. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/551583#551583] Start a new discussion in jBPM Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 10 months

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Re: [jboss-dev-forums] [jBPM Development] - JBPM-1453 merge job notification of MessageSession and TimerSession

by HuiSheng Xu

HuiSheng Xu [http://community.jboss.org/people/rebody] replied to the discussion "JBPM-1453 merge job notification of MessageSession and TimerSession" To view the discussion, visit: http://community.jboss.org/message/551582#551582 -------------------------------------------------------------- Hi Alejandro, Thank you for the work. I will try it. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/551582#551582] Start a new discussion in jBPM Development at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&cont...]

13 years, 10 months

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jboss-dev-forums July 2010