Can I determine datatype of a control from it's reference??

that's pretty much the question...
for example. if I'm using an dynamic event structure, and an event fires.... I'd like to use the control ref that is given in the event structure to determine what type of control (numeric, boolean, array, etc.) changed...
is this possible...
more simply, if I have a reference to a control, can I determine it's type?
thanks
-z

Thank you Darren,
I should be more specific. Is there any way to accomplish what I will describe below?
I have an event structure fire on an dynamic event. The eventData node (on the left of the structure) has several outputs including "CtlRef" and "NewVal". For a dynamic event, the data is of type varient and must be cast into the proper type using the "Varient to Data" function. Unfortunately, this requires that I put a constant in the code that is equivalent to the actual data type and wire it to the "Varient to Data" function.... What I would prefer is to somehow use the "CtlRef" value and wire that into the top of the "Varient to Data" function in order to properly cast the data.
ideas?
thanks
-z

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Plz any 1 can explain what read form and control from do in alv

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Hi,
READ_FORM is used to get the form related data like WINDOWS, PAGE WINDOWS, etc
CONTROL_FORM
SAPscript control commands can be carried out with CONTROL_FORM. The
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Hi,
I am getting the same error. Did you got any solution for this?
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Hello,
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Attachments:
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Recent Technet articles:
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In the context help, enable "Show Optional Terminals and Full Path ", then just hover over your VI, either on the diagram on in the hierarchy view.
LabVIEW Champion . Do more with less code and in less time .

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Can't invoke a process control from a pageflow

I create a simple pageflow that invokes a process control (jpd file) to start a
business process. I created a process control from the jpd and added it as a control
to the pageflow. I can run the process indepedently in the test harness, but cannot
invoke from my pageflow.
Any ideas what what could be wrong?
When I invoke a method on the process control I get the following in the test
browser:
An error has occurred:
EJB Exception: ; nested exception is:
com.bea.control.ProcessControlException: [WLI-Core:530214]ProcessControl invocation
failed[null]
caused by: : com.bea.control.ProcessControlException: [WLI-Core:530214]ProcessControl
invocation failed[null]
In the server console I have the following exceptions:
<Dec 9, 2003 8:16:01 AM GMT-05:00> <Warning> <WLW> <000000> <Id=top-level; Metho
d=processes.customerNeed.SubmitNeed_wf.$__clientRequest(); Failure=java.lang.Cla
ssCastException [ServiceException]>
<Dec 9, 2003 8:16:01 AM GMT-05:00> <Warning> <WLW> <000000> <Id=top-level; Metho
d=processes.customerNeed.SubmitNeedControl.clientRequest(); Failure=com.bea.cont
rol.ProcessControlException: [WLI-Core:530214]ProcessControl invocation failed[n
ull]>
[IDSSPortal] Unhandled exception caught in Global.app:
java.rmi.RemoteException: EJB Exception: ; nested exception is:
com.bea.control.ProcessControlException: [WLI-Core:530214]ProcessControl
invocation failed[null]
at weblogic.ejb20.internal.EJBRuntimeUtils.throwRemoteException(EJBRunti
meUtils.java:103)
at weblogic.ejb20.internal.BaseEJBHome.handleSystemException(BaseEJBHome
.java:295)
at weblogic.ejb20.internal.BaseEJBObject.postInvoke(BaseEJBObject.java:2
53)
at weblogic.ejb20.internal.StatelessEJBObject.postInvoke(StatelessEJBObj
ect.java:141)
at com.bea.wlw.runtime.core.bean.SyncDispatcher_k1mrl8_EOImpl.invoke(Syn
cDispatcher_k1mrl8_EOImpl.java:110)
at com.bea.wlw.runtime.core.dispatcher.ServiceHandleImpl.invoke(ServiceH
andleImpl.java:285)
at com.bea.wlw.runtime.core.dispatcher.WlwProxyImpl.invoke(WlwProxyImpl.
java:240)
at $Proxy8.clientRequest(Unknown Source)
at pageFlows.customerNeed.customerNeedController.submitNeed(customerNeed
Controller.jpf:128)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.bea.wlw.netui.pageflow.FlowController.invokeActionMethod(FlowCont
roller.java:1262)
at com.bea.wlw.netui.pageflow.FlowController.getActionMethodForward(Flow
Controller.java:1214)
at com.bea.wlw.netui.pageflow.FlowController.execute(FlowController.java
:650)
at com.bea.wlw.netui.pageflow.PageFlowController.execute(PageFlowControl
ler.java:278)
at org.apache.struts.action.RequestProcessor.processActionPerform(Reques
tProcessor.java:480)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.ja
va:274)
at com.bea.wlw.netui.pageflow.PageFlowRequestProcessor.process(PageFlowR
equestProcessor.java:429)
at com.bea.wlw.netui.pageflow.DynamicSubappActionServlet.process(Dynamic
SubappActionServlet.java:405)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:520)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run
(ServletStubImpl.java:1053)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:387)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:28)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.ja
va:27)
at com.bea.p13n.servlets.PortalServletFilter.doFilter(PortalServletFilte
r.java:313)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.ja
va:27)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationActio
n.run(WebAppServletContext.java:6316)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(Authenticate
dSubject.java:317)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:
118)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppSe
rvletContext.java:3622)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestIm
pl.java:2569)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)
Caused by: com.bea.control.ProcessControlException: [WLI-Core:530214]ProcessCont
rol invocation failed[null]
at com.bea.control.ProcessControlImpl.invoke(ProcessControlImpl.jcs:369)
at com.bea.wlw.runtime.core.dispatcher.DispMethod.invoke(DispMethod.java
:359)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:42
0)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:39
3)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:24
5)
at com.bea.wlw.runtime.jcs.container.JcsContainer.invoke(JcsContainer.ja
va:85)
at com.bea.wlw.runtime.core.bean.BaseContainerBean.invokeBase(BaseContai
nerBean.java:185)
at com.bea.wlw.runtime.core.bean.SLSBContainerBean.invoke(SLSBContainerB
ean.java:103)
at com.bea.wlwgen.SubmitNeedControlSLSBContImpl.clientRequest(SubmitNeed
ControlSLSBContImpl.java:25)
at com.bea.wlwgen.StatelessContainer_a0ubma_ELOImpl.clientRequest(Statel
essContainer_a0ubma_ELOImpl.java:423)
at com.bea.wlwgen.SubmitNeedControlSLSBContAdpt.invokeOnBean(SubmitNeedC
ontrolSLSBContAdpt.java:62)
at com.bea.wlw.runtime.core.bean.BaseDispatcherBean.runAsInvoke(BaseDisp
atcherBean.java:160)
at com.bea.wlw.runtime.core.bean.BaseDispatcherBean.invoke(BaseDispatche
rBean.java:54)
at com.bea.wlw.runtime.core.bean.SyncDispatcherBean.invoke(SyncDispatche
rBean.java:159)
at com.bea.wlw.runtime.core.bean.SyncDispatcher_k1mrl8_EOImpl.invoke(Syn
cDispatcher_k1mrl8_EOImpl.java:100)
... 32 more
Caused by: java.lang.ClassCastException [ServiceException]
at com.bea.wlw.runtime.core.dispatcher.DispMethod.invoke(DispMethod.java
:379)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:42
0)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:39
3)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:24
5)
at com.bea.wlw.runtime.core.bean.BaseContainerBean.invokeBase(BaseContai
nerBean.java:185)
at com.bea.wlw.runtime.core.bean.BMPContainerBean.invoke(BMPContainerBea
n.java:1530)
at com.bea.wlwgen.SubmitNeedBMPContImpl.clientRequest(SubmitNeedBMPContI
mpl.java:25)
at com.bea.wlwgen.PersistentContainer_cfepz3_ELOImpl.clientRequest(Persi
stentContainer_cfepz3_ELOImpl.java:207)
at com.bea.wlwgen.SubmitNeedBMPContAdpt.invokeOnBean(SubmitNeedBMPContAd
pt.java:80)
at com.bea.wlw.runtime.core.bean.BaseDispatcherBean.runAsInvoke(BaseDisp
atcherBean.java:160)
at com.bea.wlw.runtime.core.bean.BaseDispatcherBean.invoke(BaseDispatche
rBean.java:54)
at com.bea.wlw.runtime.core.bean.SyncDispatcherBean.invoke(SyncDispatche
rBean.java:159)
at com.bea.wlw.runtime.core.bean.SyncDispatcher_k1mrl8_EOImpl.invoke(Syn
cDispatcher_k1mrl8_EOImpl.java:100)
at com.bea.wlw.runtime.core.dispatcher.ServiceHandleImpl.invoke(ServiceH
andleImpl.java:285)
at com.bea.wlw.runtime.core.call.JavaCall.invoke(JavaCall.java:57)
at com.bea.wli.bpm.runtime.SubFlowCall.invoke(SubFlowCall.java:42)
at com.bea.wlw.runtime.core.control.ServiceControlImpl.invoke(ServiceCon
trolImpl.jcs:873)
at com.bea.control.ProcessControlImpl.invoke(ProcessControlImpl.jcs:421)
at com.bea.wlw.runtime.core.control.ServiceControlImpl.invoke(ServiceCon
trolImpl.jcs:754)
at com.bea.control.ProcessControlImpl.invoke(ProcessControlImpl.jcs:359)
... 46 more
Caused by: java.lang.ClassCastException
at processes.customerNeed.SubmitNeed_wf.$__clientRequest(SubmitNeed_wf.j
ava:114)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.bea.wlw.runtime.core.dispatcher.DispMethod.invoke(DispMethod.java
:353)
... 65 more

Some additional information:
The problem seems to be related to a custom object that I am passing to the exposed
clientRequest(String, CustomObj) method in the process control. If I remove the
CustomObj parameter, all works fine. Unfortunately, I need to pass that object
to the workflow. I have the CustomObj define within my project "Project/com/omeninc/package/CustomObj",
my process file located at "Project/processes/customerNeed/SubmitNeed.jpd" and
my pageflow define at "Project/pageFlows/customerNeed/customerNeedController.jpf".
The entire project builds without error, but when I run it I get the ClassCastException.
Thanks in advance for any assistance!!
<Dec 9, 2003 9:39:59 AM GMT-05:00> <Warning> <WLW> <000000> <Id=top-level; Metho
d=processes.customerNeed.SubmitNeed_wf.$__clientRequest(); Failure=java.lang.ClassCastException
[ServiceException]>
<Dec 9, 2003 9:39:59 AM GMT-05:00> <Warning> <WLW> <000000> <Id=top-level; Metho
d=processes.customerNeed.SubmitNeedControl.clientRequest(); Failure=com.bea.cont
rol.ProcessControlException: [WLI-Core:530214]ProcessControl invocation failed[null]>
[IDSSPortal] Unhandled exception caught in Global.app:
java.rmi.RemoteException: EJB Exception: ; nested exception is:
com.bea.control.ProcessControlException: [WLI-Core:530214]ProcessControl
invocation failed[null]
"Jim Anzaldi" <[email protected]> wrote:
>
I create a simple pageflow that invokes a process control (jpd file)
to start a
business process. I created a process control from the jpd and added
it as a control
to the pageflow. I can run the process indepedently in the test harness,
but cannot
invoke from my pageflow.
Any ideas what what could be wrong?
When I invoke a method on the process control I get the following in
the test
browser:
An error has occurred:
EJB Exception: ; nested exception is:
com.bea.control.ProcessControlException: [WLI-Core:530214]ProcessControl
invocation
failed[null]
caused by: : com.bea.control.ProcessControlException: [WLI-Core:530214]ProcessControl
invocation failed[null]
In the server console I have the following exceptions:
<Dec 9, 2003 8:16:01 AM GMT-05:00> <Warning> <WLW> <000000> <Id=top-level;
Metho
d=processes.customerNeed.SubmitNeed_wf.$__clientRequest(); Failure=java.lang.Cla
ssCastException [ServiceException]>
<Dec 9, 2003 8:16:01 AM GMT-05:00> <Warning> <WLW> <000000> <Id=top-level;
Metho
d=processes.customerNeed.SubmitNeedControl.clientRequest(); Failure=com.bea.cont
rol.ProcessControlException: [WLI-Core:530214]ProcessControl invocation
failed[n
ull]>
[IDSSPortal] Unhandled exception caught in Global.app:
java.rmi.RemoteException: EJB Exception: ; nested exception is:
com.bea.control.ProcessControlException: [WLI-Core:530214]ProcessControl
invocation failed[null]
at weblogic.ejb20.internal.EJBRuntimeUtils.throwRemoteException(EJBRunti
meUtils.java:103)
at weblogic.ejb20.internal.BaseEJBHome.handleSystemException(BaseEJBHome
.java:295)
at weblogic.ejb20.internal.BaseEJBObject.postInvoke(BaseEJBObject.java:2
53)
at weblogic.ejb20.internal.StatelessEJBObject.postInvoke(StatelessEJBObj
ect.java:141)
at com.bea.wlw.runtime.core.bean.SyncDispatcher_k1mrl8_EOImpl.invoke(Syn
cDispatcher_k1mrl8_EOImpl.java:110)
at com.bea.wlw.runtime.core.dispatcher.ServiceHandleImpl.invoke(ServiceH
andleImpl.java:285)
at com.bea.wlw.runtime.core.dispatcher.WlwProxyImpl.invoke(WlwProxyImpl.
java:240)
at $Proxy8.clientRequest(Unknown Source)
at pageFlows.customerNeed.customerNeedController.submitNeed(customerNeed
Controller.jpf:128)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.bea.wlw.netui.pageflow.FlowController.invokeActionMethod(FlowCont
roller.java:1262)
at com.bea.wlw.netui.pageflow.FlowController.getActionMethodForward(Flow
Controller.java:1214)
at com.bea.wlw.netui.pageflow.FlowController.execute(FlowController.java
:650)
at com.bea.wlw.netui.pageflow.PageFlowController.execute(PageFlowControl
ler.java:278)
at org.apache.struts.action.RequestProcessor.processActionPerform(Reques
tProcessor.java:480)
at org.apache.struts.action.RequestProcessor.process(RequestProcessor.ja
va:274)
at com.bea.wlw.netui.pageflow.PageFlowRequestProcessor.process(PageFlowR
equestProcessor.java:429)
at com.bea.wlw.netui.pageflow.DynamicSubappActionServlet.process(Dynamic
SubappActionServlet.java:405)
at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:520)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run
(ServletStubImpl.java:1053)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubIm
pl.java:387)
at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:28)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.ja
va:27)
at com.bea.p13n.servlets.PortalServletFilter.doFilter(PortalServletFilte
r.java:313)
at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.ja
va:27)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationActio
n.run(WebAppServletContext.java:6316)
at weblogic.security.acl.internal.AuthenticatedSubject.doAs(Authenticate
dSubject.java:317)
at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:
118)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppSe
rvletContext.java:3622)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestIm
pl.java:2569)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:197)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:170)
Caused by: com.bea.control.ProcessControlException: [WLI-Core:530214]ProcessCont
rol invocation failed[null]
at com.bea.control.ProcessControlImpl.invoke(ProcessControlImpl.jcs:369)
at com.bea.wlw.runtime.core.dispatcher.DispMethod.invoke(DispMethod.java
:359)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:42
0)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:39
3)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:24
5)
at com.bea.wlw.runtime.jcs.container.JcsContainer.invoke(JcsContainer.ja
va:85)
at com.bea.wlw.runtime.core.bean.BaseContainerBean.invokeBase(BaseContai
nerBean.java:185)
at com.bea.wlw.runtime.core.bean.SLSBContainerBean.invoke(SLSBContainerB
ean.java:103)
at com.bea.wlwgen.SubmitNeedControlSLSBContImpl.clientRequest(SubmitNeed
ControlSLSBContImpl.java:25)
at com.bea.wlwgen.StatelessContainer_a0ubma_ELOImpl.clientRequest(Statel
essContainer_a0ubma_ELOImpl.java:423)
at com.bea.wlwgen.SubmitNeedControlSLSBContAdpt.invokeOnBean(SubmitNeedC
ontrolSLSBContAdpt.java:62)
at com.bea.wlw.runtime.core.bean.BaseDispatcherBean.runAsInvoke(BaseDisp
atcherBean.java:160)
at com.bea.wlw.runtime.core.bean.BaseDispatcherBean.invoke(BaseDispatche
rBean.java:54)
at com.bea.wlw.runtime.core.bean.SyncDispatcherBean.invoke(SyncDispatche
rBean.java:159)
at com.bea.wlw.runtime.core.bean.SyncDispatcher_k1mrl8_EOImpl.invoke(Syn
cDispatcher_k1mrl8_EOImpl.java:100)
... 32 more
Caused by: java.lang.ClassCastException [ServiceException]
at com.bea.wlw.runtime.core.dispatcher.DispMethod.invoke(DispMethod.java
:379)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:42
0)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:39
3)
at com.bea.wlw.runtime.core.container.Invocable.invoke(Invocable.java:24
5)
at com.bea.wlw.runtime.core.bean.BaseContainerBean.invokeBase(BaseContai
nerBean.java:185)
at com.bea.wlw.runtime.core.bean.BMPContainerBean.invoke(BMPContainerBea
n.java:1530)
at com.bea.wlwgen.SubmitNeedBMPContImpl.clientRequest(SubmitNeedBMPContI
mpl.java:25)
at com.bea.wlwgen.PersistentContainer_cfepz3_ELOImpl.clientRequest(Persi
stentContainer_cfepz3_ELOImpl.java:207)
at com.bea.wlwgen.SubmitNeedBMPContAdpt.invokeOnBean(SubmitNeedBMPContAd
pt.java:80)
at com.bea.wlw.runtime.core.bean.BaseDispatcherBean.runAsInvoke(BaseDisp
atcherBean.java:160)
at com.bea.wlw.runtime.core.bean.BaseDispatcherBean.invoke(BaseDispatche
rBean.java:54)
at com.bea.wlw.runtime.core.bean.SyncDispatcherBean.invoke(SyncDispatche
rBean.java:159)
at com.bea.wlw.runtime.core.bean.SyncDispatcher_k1mrl8_EOImpl.invoke(Syn
cDispatcher_k1mrl8_EOImpl.java:100)
at com.bea.wlw.runtime.core.dispatcher.ServiceHandleImpl.invoke(ServiceH
andleImpl.java:285)
at com.bea.wlw.runtime.core.call.JavaCall.invoke(JavaCall.java:57)
at com.bea.wli.bpm.runtime.SubFlowCall.invoke(SubFlowCall.java:42)
at com.bea.wlw.runtime.core.control.ServiceControlImpl.invoke(ServiceCon
trolImpl.jcs:873)
at com.bea.control.ProcessControlImpl.invoke(ProcessControlImpl.jcs:421)
at com.bea.wlw.runtime.core.control.ServiceControlImpl.invoke(ServiceCon
trolImpl.jcs:754)
at com.bea.control.ProcessControlImpl.invoke(ProcessControlImpl.jcs:359)
... 46 more
Caused by: java.lang.ClassCastException
at processes.customerNeed.SubmitNeed_wf.$__clientRequest(SubmitNeed_wf.j
ava:114)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at com.bea.wlw.runtime.core.dispatcher.DispMethod.invoke(DispMethod.java
:353)
... 65 more

Can I determine datatype of a control from it's reference??

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