BPEL / BAM problem scope variable

Hi,
I try to notice BAM from a BPEL Process.
Actually my DataObject in BAM make lookups on the another one. So i have to notice 2 times BAM :
- 1 for the DataObject which is the target of the lookup of the 2nd DataObject (that i call genericDO)
- 1 for the DataObject which make lookups (specificDO)
The reason for these 2 notifications is that lookup fields are readonly. I can't set values using my specificDO. So i have to insert 1 genericDO and then a sspecificDO.
So to have to do 2 notifications.
Now the real problem :
On the activity, i place 1 Sensor which use 2 BAMSensorAction.
Sensor (use 1 simple variable which contains 3 strings) :
*<sensor sensorName="BAM_KO_Sensor" classname="oracle.tip.pc.services.reports.dca.agents.BpelActivitySensorAgent" kind="activity" target="Invoke_signalerErreur">*
*<activityConfig evalTime="all">*
*<variable outputDataType="notification" outputNamespace="http://xmlns.oracle.com/NotificationBAM" target="$notification"/>*
*</activityConfig>*
*</sensor>*
My 2 BAMSensorAction :
*<action name="BAM_KO_SensorAction" publishName="OracleBam" publishType="BAM" enabled="true">*
*<property name="bamDataObjectKey"></property>*
*<property name="batchStatus">false</property>*
*<property name="batchLowerLimit">100</property>*
*<property name="batchTimeout">500</property>*
*<property name="bamTransform">bam/BAM_SensorAction.xsl</property>*
*<property name="bamServer">http://s-bam-dev:80/OracleBAM/DataObject/DataObjectOperations.asmx</property>*
*<property name="batchDefault">true</property>*
*<property name="bamOperation">Insert</property>*
*<property name="bamDataObject">/DE/Activation/IntegrationProcess</property>*
*<property name="batchUpperLimit">500</property>*
*<sensorName>BAM_KO_Sensor</sensorName>*
*</action>*
*<action name="BAM_KO_Process_SensorAction" publishName="OracleBam" publishType="BAM" enabled="true">*
*<property name="bamDataObjectKey"></property>*
*<property name="batchStatus">false</property>*
*<property name="batchLowerLimit">100</property>*
*<property name="batchTimeout">500</property>*
*<property name="bamTransform">bam/BAM_Process_SensorAction.xsl</property>*
*<property name="bamServer">http://s-bam-dev:80/OracleBAM/DataObject/DataObjectOperations.asmx</property>*
*<property name="batchDefault">true</property>*
*<property name="bamOperation">Insert</property>*
*<property name="bamDataObject">/DE/ProcessTransverse/Process</property>*
*<property name="batchUpperLimit">500</property>*
*<sensorName>BAM_KO_Sensor</sensorName>*
*</action>*
I deploy the process without compilation problem.
And at runtime, the instance works well, i can see the 1st Insert in BAM, but the 2nd one is never done. In the log i can see that the 1st one is flushed, but i have this error for the 2nd one :
*<2009-05-12 14:17:20,775> <ERROR> <default.collaxa.cube.sensor> <DataRouter::send> error*
ORABPEL-20301
Echec du Data Publisher.
Echec du Reporting Data Publisher BAM_KO_Process_SensorAction.
Pour plus dinformations, consultez le fichier journal.
at com.collaxa.cube.engine.sensor.sa.DataRouter.send(DataRouter.java:101)
at com.collaxa.cube.engine.sensor.sa.DataRouter.send(DataRouter.java:133)
at com.collaxa.cube.engine.sensor.dca.DataCaptureAgency.send(DataCaptureAgency.java:181)
at com.collaxa.cube.engine.sensor.dca.DataCaptureAgency.sendActivityData(DataCaptureAgency.java:153)
at com.collaxa.cube.engine.sensor.dca.DataCaptureAgency.onActivityComplete(DataCaptureAgency.java:227)
at com.collaxa.cube.engine.ext.wmp.BPELActivityWMP.perform(BPELActivityWMP.java:205)
at com.collaxa.cube.engine.CubeEngine.performActivity(CubeEngine.java:3698)
at com.collaxa.cube.engine.CubeEngine.handleWorkItem(CubeEngine.java:1655)
at com.collaxa.cube.engine.dispatch.message.instance.PerformMessageHandler.handleLocal(PerformMessageHandler.java:75)
at com.collaxa.cube.engine.dispatch.DispatchHelper.handleLocalMessage(DispatchHelper.java:217)
at com.collaxa.cube.engine.dispatch.DispatchHelper.sendMemory(DispatchHelper.java:314)
at com.collaxa.cube.engine.CubeEngine.endRequest(CubeEngine.java:5765)
at com.collaxa.cube.engine.CubeEngine.handleWorkItem(CubeEngine.java:1722)
at com.collaxa.cube.engine.ejb.impl.CubeEngineBean.handleWorkItem(CubeEngineBean.java:307)
at sun.reflect.GeneratedMethodAccessor209.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at com.evermind.server.ejb.interceptor.joinpoint.EJBJoinPointImpl.invoke(EJBJoinPointImpl.java:35)
at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)
at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
at com.evermind.server.ejb.interceptor.system.JAASInterceptor$1.run(JAASInterceptor.java:31)
at com.evermind.server.ThreadState.runAs(ThreadState.java:693)
at com.evermind.server.ejb.interceptor.system.JAASInterceptor.invoke(JAASInterceptor.java:34)
at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
at com.evermind.server.ejb.interceptor.system.TxRequiredInterceptor.invoke(TxRequiredInterceptor.java:50)
at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
at com.evermind.server.ejb.interceptor.system.DMSInterceptor.invoke(DMSInterceptor.java:52)
at com.evermind.server.ejb.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:119)
at com.evermind.server.ejb.InvocationContextPool.invoke(InvocationContextPool.java:55)
at com.evermind.server.ejb.StatelessSessionEJBObject.OC4J_invokeMethod(StatelessSessionEJBObject.java:87)
at CubeEngineBean_LocalProxy_4bin6i8.handleWorkItem(Unknown Source)
at com.collaxa.cube.engine.dispatch.message.instance.PerformMessageHandler.handle(PerformMessageHandler.java:45)
at com.collaxa.cube.engine.dispatch.DispatchHelper.handleMessage(DispatchHelper.java:140)
at com.collaxa.cube.engine.dispatch.BaseDispatchTask.run(BaseDispatchTask.java:58)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:650)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:675)
at java.lang.Thread.run(Thread.java:595)
Caused by: ORABPEL-20301
Echec du Data Publisher.
Echec du Reporting Data Publisher BAM_KO_Process_SensorAction.
Pour plus dinformations, consultez le fichier journal.
at com.collaxa.cube.engine.sensor.sa.BpelPublisher.publish(BpelPublisher.java:137)
at com.collaxa.cube.engine.sensor.registry.BpelSensorActionInfo.publish(BpelSensorActionInfo.java:178)
at com.collaxa.cube.engine.sensor.sa.DataRouter.send(DataRouter.java:93)
*... 37 more*
Caused by: ORABPEL-02117
Variable dÃ©jÃ dÃ©clarÃ©e.
Une variable portant la clÃ© "bamserver.hostname" a dÃ©jÃ Ã©tÃ© dÃ©clarÃ©e dans le scope en cours.
Enlevez du code linstruction de dÃ©claration de variable.
at com.collaxa.cube.engine.core.Scope.__checkVariantDecl(Scope.java:1411)
at com.collaxa.cube.engine.core.Scope.declareAndSet(Scope.java:800)
at com.collaxa.cube.engine.sensor.dca.data.BpelCapturedData.getHeaderProperties(BpelCapturedData.java:199)
at com.collaxa.cube.engine.sensor.sa.FilteredDataPublisher.publish(FilteredDataPublisher.java:105)
at com.collaxa.cube.engine.sensor.sa.BpelPublisher.publish(BpelPublisher.java:129)
*... 39 more*
All what i can say is that i never declare any variable with bamserver.hostname key. The only spot in all my process where this value can be seen is the bpel.xml :
*<preferences>*
*<property name="bamserver.hostname" encryption="plaintext">s-bam-dev</property>*
*<property name="bamserver.protocol" encryption="plaintext">http</property>*
*</preferences>*
Seems like a variable is declared by the 1st SensorAction, and the 2nd one try to declare it again...
Any ideas on the problem ?

Hi,
Thx for the response.
Actually there's no variable declaration visible in the bpel.xml. It was the first thing that i have look for, regarding to the exeption.
That's why i suppose that there's some sort of runtime variable declaration by the BAM sensor. No certitude on this...
And yes, when you place the two BAMSensorAction on two Sensors which are on activities in separate scopes... it works.
Finally i avoid the problem doing something like that :
<ScopeForBAMNotification>
<ScopeForNotification1>Empty activity 1 with 1 sensor activity which use 1 sensorBAMAction</ScopeForNotification1>
<ScopeForNotification2>Empty activity 1 with 1 sensor activity which use 1 sensorBAMAction</ScopeForNotification2>
</ScopeForBAMNotification>
Not pretty, but works...

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Repost:
Problem with variables in dynamic SQL/PLSQL

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&c2date1=15 September 2006&
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Problem with Variable screen in WAD

Hi ,
I have a problem with variable screen in WAD , in the varable seen it is displaying only Key , it is not giving any description , but in BEX is is displaying both Key and Description , can any only have an idea why is this happening . this is occuring only for one variable , rest are working fine .
Thanks,
Abraham

Hi Abraham,
thsi could be a problem from the specisic setting of the infocube. Please check the BEx Settings from the infocube. You can find them by the following steps:
- search for the infocube
- doubleclick on the infocube
- choose an specific infoobjekt
- right mousebutton and click "specific dataprovider settings"
- check if the right entries are set
Hope this will help.
André

Method Scope variables controls Multi-Threading !

Hye there Experts !
First, let me thank you all for such a brain-stuff sharing around; feel nice to be a part here.
While browsing through the below article, found something confusing...kindly clarify.
http://www.javaworld.com/javaworld/jw-07-2004/jw-0712-threadsafe.html?page=1
Extract from the above discussion I understand :
when a variable is moved to method scope instead of instance scope, synchronization is achieved.
How is this true for servlets ???
Method scope variables are available only during method call I think...here, since this is a servlet, there will be only one instance and if many (lets say 10) requests hits this servlet object, all these threads will read same counter as all of them enter into this only one method of this object,
so...this should be still not thread safe I guess.
I didn't want to execute and see results of this code, but I am trying to understand the key at first.
Please guide me before brain blows... :-)
Would also appreciate any references that really says true things about
'synchronization for enterprize (handle huge requests) web apps - technques for servlets and any other stuff'
Thanks again guys, have a wonderful time.

feel nice to be a part here.Welcome to the mad-house ;-)
Method scope variables are available only during method callWARNING: I'm no guru, so this may be misleading or just plain wrong.. but as I understand it:
Yep a "local" variable exists only the context of the execution of it's containing method... so a local variable is implicitly bound to the thread that created it (by invoking the method in which the local is declared)... a local variable can't be accessed directly by another thread simply because the other thread has no access-path to the variable (you can't expose a local through getters & setters)... hence locals are thread safe.
The important bit is that it's the thread which "owns" the local variable... not the declaring method... if the method is executed concurrently by two threads, each thread will have its own private copy of all the local variables.
One other question though: are locals in static methods still thread safe? I'm not sure.
package forums;
class NonfinalLocalVariableInThreadTest
public static void main(String[] args) {
    try {
      new Thread(new Runnable() {
        public void run() {
          System.out.println(args[0]);
      }).start();
    } catch (Exception e) {
      e.printStackTrace();
compiler error
C:\Java\home\src\forums>"C:\Program Files\Java\jdk1.6.0_07\bin\javac.exe" -Xlint -d c:\java\home\classes -cp c:\java\home\src;.;c:\java\home\classes c:\java\home\src\forums\NonfinalLocalVariableInThreadTest.java
C:\Java\home\src\forums\NonfinalLocalVariableInThreadTest.java:9: local variable args is accessed from within inner class; needs to be declared final
          System.out.println(args[0]);
                             ^
1 error
Output completed (0 sec consumed)

How long is the life time of process scope variable ?

Hi All,
How long is the life time of process scope variable befoer it expires ?
Is it the same with the life time of session scope ?
How can we set the value in OAS when deployment ?
Thank you,
xtanto

Hi,
http://www.oracle.com/technology/products/jdev/htdocs/partners/addins/exchange/jsf/doc/devguide/communicatingBetweenPages.html
" Finally, processScope never empties itself; the only way to clear processScope is to manually force it to clear:
AdfFacesContext afContext = AdfFacesContext.getCurrentInstance();
afContext.getProcessScope().clear();
Otherwise the variable lives for the duration of the window process. The referenced document above also shows how to set a variable to process scope
Frank

Suggestion: JavaScript scope variables and event listeners

Invoking Java from JavaScript in ADF Mobile is surprisingly efficient although it is still relatively expensive compared to plain HTML5/JavaScript/CSS stuff in the native UIWebView. But whenever you want to do something "dynamic" you have to revert to invoking Java, even for simple use cases. As far as I can see it as soon as you use listeners on components, managed beans or data controls you're in the Java world.
Why not add similar concepts that are pure JavaScript implementations for performance. As an example I want to have a SelectOneButton component and depending on its state I want to enable/disable an InputText component. As far as I can see it I would need Java to make this happen. First, I would need a Java managed bean to keep the enabled/disabled state. Then I would set the value property of the SelectOneButton with an EL expression to this managed bean property, or for other scenarios use a Java based ActionListener to change the state. Then the InputText component could use an EL expression in its Disabled property.
For this simple use case this would still perform fast, but real applications grow more complex.
Why not have the option of creating JavaScript based managed "beans"? The could live on javaScriptPageFlowScope or javaScriptViewScope. Then the AMX components could reference this from EL and it would be even better if we can create pure javascript ActionListeners (or other listeners). This would make it similar to the choice with ADF Faces application between doing a server roundtrip with partial-page-rendering and using pure clientListeners and clientAttributes for optimal performance.
For situations where we do need to power of Java, it would be great if we can access these javascript scope variables from Java.

This is a good suggestion, Wilfred. We haven't gotten to this level of optimization in the framework yet. At some point it's likely we'll have an option for the developer to specify the layer to handle the method.
Thanks

Dataype of cfdocument scope variables

Hello,
It seems that since I installed the 8.0.1 updater the
datatype of the cfdocument scope variables (eg totalpagecount and
currentpagenumber) has been changed. Before the update the datatype
was numeric, but now it seems unknown. This means I can't use
mathematical expressions to these variables. Is this a new bug in
CF 8.0.1 or....??
Frank

I have done some tests and it seems that the variables are
replaced by {currentpagenumber} and {totalpagecount} and I think
these variables are filled in by the pdf reader. I think we need
some pdf programming guide to find out how to manipulate these
variables.
I have no clue why Adobe decided to change this behaviour in
CF 8.0.1.

BPEL / BAM problem scope variable

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