August 2012 - jboss-user - Jboss List Archives

[jBPM] - Proposed temporary and limited approach to supporting excluded owners

by jemmerling

jemmerling [https://community.jboss.org/people/jemmerling] created the discussion "Proposed temporary and limited approach to supporting excluded owners" To view the discussion, visit: https://community.jboss.org/message/646719#646719 -------------------------------------------------------------- I have been looking at way to do the following within jBPM: Have a node in a process definition be associated with a particular group (or groups), however due to the history of a given process, to exclude some actor(s) who might be members of that group. Now the WS-HumanTask specification supports something called excluded owners. Here is a snippet from one version of this specification (not certain if it is the latest one): +"Potential owners of a task are persons who receive the task so that they can claim and complete it. A potential owner becomes the actual owner of a task by explicitly claiming it. Before the task has been claimed, potential owners can influence the progress of the task, for example by changing the priority of the task, adding ad-hoc attachments or comments. All excluded owners are implicitly removed from the set of potential owners. A WS-HumanTask Definition MAY define assignment for this generic human role.+ +Excluded owners are are people who cannot become an actual or potential owner and thus they cannot reserve or start the task. A WS-HumanTask Definition MAY define assignment for this generic human role. "+ Although the jBPM5 schema supports the existence of excluded owners, I have seen no explicit mechanism to support this when developing an application. If there is something I am missing, please point this out. In the meantime, I can see a way that a developer could add this functionality without the need to directly modify jBPM5, using the following approach. I would like to know whether it is believed this would work. I am not completely comfortable with this for reasons I will give (although these reasons should be more or less obvious): 1.) First, define a new work item parameter (or analogous mechanism) that represents users who will be excluded from the next node. Let's assume we can correctly identify the next node. 2.) Create a class that extends WSHumanTaskHandler. This class will override the executeWorkItem method. This method will populate excluded owners in the people assignments from having inspected the new parameter. It will otherwise be the same as the method it overrides except for this one additional logic step. 3.) Replace the existing Taskorm.xml with a modified version in which the TasksAssignedAsPotentialOwnerByGroup named query (and possibly some similar named queries) is modified so that excluded owners are not able to claim the task. I believe all the above is feasible because a.) there is nothing to stop the developer from extending WSHumanTaskHandler in the described manner, and using it in the application code and b.) the ORM file is specified in persistence.xml which is a developer-configurable file, so the developer should be at liberty to specify a different file. So all this could be done without "hacking" jBPM directly. However I am uncomfortable with this approach because the overridden executeWorkItem method as well as the replacement ORM file would be created using a copy-and-paste methodology so that when progressing to a later version of jBPM it would be necessary to modify these to reflect the original logic. Nevertheless, if there is some intention to support this type of functionality in a future release of jBPM (and assuming I am right to conclude it is not currently supported) this might be a justifiable short-term solution. -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/646719#646719] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&con...]

11 years, 6 months

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[jBPM] - Re: InvocationTargetException when creating StatefulKnowledgeSession

by Maciej Swiderski

Maciej Swiderski [https://community.jboss.org/people/swiderski.maciej] created the discussion "Re: InvocationTargetException when creating StatefulKnowledgeSession" To view the discussion, visit: https://community.jboss.org/message/722779#722779 -------------------------------------------------------------- Could you paste complete stack trace that is produced when you run it? another question, what is jtaManager - do you look it up from JBoss AS JNDI? Cheers -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/722779#722779] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&con...]

11 years, 6 months

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[jBPM] - Re: Adding new workitems programmatically, without repacking the application ?

by Mauricio Salatino

Mauricio Salatino [https://community.jboss.org/people/salaboy21] created the discussion "Re: Adding new workitems programmatically, without repacking the application ?" To view the discussion, visit: https://community.jboss.org/message/717138#717138 -------------------------------------------------------------- Exactly! You are right with the method name.. I didn't have the code infront of me.. but you find it ;) -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/717138#717138] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&con...]

11 years, 6 months

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[EJB3] - Re: EJB 2.1 BMP with CMT and RequiresNew in JBoss AS 7.1.0 Final

by Daniel Zhelyazkov

Daniel Zhelyazkov [https://community.jboss.org/people/dzhelyazkov] created the discussion "Re: EJB 2.1 BMP with CMT and RequiresNew in JBoss AS 7.1.0 Final" To view the discussion, visit: https://community.jboss.org/message/728546#728546 -------------------------------------------------------------- Fixed my problem, after debug session of JBoss code it turned out that the code that parses TX attributes produces wrong info. we had the folowing in ejb-jar.xml <method> <ejb-name>SomeEjb</ejb-name> <method-name>*</method-name> </method> ... <trans-attribute>RequiresNew</trans-attribute> Specified like that JBoss set default TX attribute Required to all LOCAL_HOME methods (ejbCreate/Find/Select/Home) and RequiresNew to all Bean methods such as toString(), hashCode()... by adding <method-intf>LocalHome</method-intf> <method> <ejb-name>SomeEjb</ejb-name> <method-intf>LocalHome</method-intf> <method-name>*</method-name> </method> all went to normal, my ejbCreate() started new transaction, and getProperties() method did not use TX interceptor. So it looks like different or wrong loginc in JBoss, the code itself states it has some problems, and it looks targeted at EJB 3.x, it is not a separate code for 2.x daniel -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/728546#728546] Start a new discussion in EJB3 at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&con...]

11 years, 6 months

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[jBPM] - What is responseHandler.waitTillDone(1000) suppose to do?

by TC ONG

TC ONG [https://community.jboss.org/people/devilkazuya99] created the discussion "What is responseHandler.waitTillDone(1000) suppose to do?" To view the discussion, visit: https://community.jboss.org/message/734424#734424 -------------------------------------------------------------- ... System.out.println("Hello"); responseHandler.waitTillDone(5000); System.out.println("World"); ... Does it means: Print "Hello", wait 5000ms, print "World"? What is the affect to te processinstance? -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/734424#734424] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&con...]

11 years, 6 months

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[jBPM] - JBPM Guvnor- TOMCAT Integration

by Mahi M

Mahi M [https://community.jboss.org/people/jbpm_new] created the discussion "JBPM Guvnor- TOMCAT Integration" To view the discussion, visit: https://community.jboss.org/message/714695#714695 -------------------------------------------------------------- Hi Everyone, In JBPM 5.2 we are deploying the jbpm process definitions in JBOSS AS server, likewise is it possible to do the deployment in TOMCAT server. Please give me the solution. Please provide the document if you have, to deploy the same and TOMCAT as deployment tool for JBPM. Thanks -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/714695#714695] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&con...]

11 years, 6 months

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[jBPM] - jBPM BPMN Pool and Lanes?

by Abdulaziz Al-Humam

Abdulaziz Al-Humam [https://community.jboss.org/people/aziz.humam] created the discussion "jBPM BPMN Pool and Lanes?" To view the discussion, visit: https://community.jboss.org/message/736587#736587 -------------------------------------------------------------- Hi all, Can anyone let me know when jBPM will release BPMN with supports pool and lanes? Many thanks -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/736587#736587] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&con...]

11 years, 6 months

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[JBoss Messaging] - Re: Failed to replay transaction

by joe_boy12

joe_boy12 [https://community.jboss.org/people/joe_boy12] created the discussion "Re: Failed to replay transaction" To view the discussion, visit: https://community.jboss.org/message/747883#747883 -------------------------------------------------------------- I have a same problem - have you found any answer? -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/747883#747883] Start a new discussion in JBoss Messaging at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&con...]

11 years, 7 months

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[jBPM] - Getting ***java.net.SocketException: Too many open files*** when running JBPM 5.2 in linux OS

by uvijayreddy657

uvijayreddy657 [https://community.jboss.org/people/uvijayreddy657] created the discussion "Getting ***java.net.SocketException: Too many open files*** when running JBPM 5.2 in linux OS" To view the discussion, visit: https://community.jboss.org/message/714888#714888 -------------------------------------------------------------- 2012-02-07 13:53:48,754 ERROR [org.apache.tomcat.util.net.JIoEndpoint] (http-0.0.0.0-8080-Acceptor-0) Socket accept failed java.net.SocketException: Too many open files at java.net.PlainSocketImpl.socketAccept(Native Method) at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:390) at java.net.ServerSocket.implAccept(ServerSocket.java:462) at java.net.ServerSocket.accept(ServerSocket.java:430) at org.apache.tomcat.util.net.DefaultServerSocketFactory.acceptSocket(DefaultServerSocketFactory.java:61) at org.apache.tomcat.util.net.JIoEndpoint$Acceptor.run(JIoEndpoint.java:314) at java.lang.Thread.run(Thread.java:662) -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/714888#714888] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&con...]

11 years, 7 months

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[Snowdrop] - Snowdrop projects for GSoC

by Marius Bogoevici

Marius Bogoevici [https://community.jboss.org/people/marius.bogoevici] created the discussion "Snowdrop projects for GSoC" To view the discussion, visit: https://community.jboss.org/message/727783#727783 -------------------------------------------------------------- For GSoC, I have a new proposal, for students who are interested in the marriage of JBoss AS7 and Spring: Provide an extension to the Spring Framework that can take advantage of AS7 annotation indexing support for deployments and apply it for speeding up the startup of Spring applications in JBoss AS 7. Its goal is as simple as it sounds, but involves dealing with JBoss AS7 and Spring internals, and requires a significant amount of research. I'm opening the discussion on this! Also, if you have other ideas regarding Snowdrop, feel free to discuss! -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/727783#727783] Start a new discussion in Snowdrop at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&con...]

11 years, 7 months

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jboss-user August 2012