Global variables in Java Mapping

Hi,
I have a java mapping function in PI 7.1 that transforms an XML document to a legacy data structure which eventually is written to a flat file. The file name is required to be sequenced for each mapping run. For example,
1. The first message generates FILE_001.dat
2. the second message generates FILE_002.dat
3. the counter resets to 001 after 999.
Due to the complexity of the mapping, I have to use a Java class to map this.
What is the best way possible to achieve this? I wonder this can be achieved using the GlobalContainer, but I am not sure whether I can access this class from within AbstractTransformation class.
Any pointers?
Thanks and best regards,
Kapila

Thanks Udo,
Due to the complexity, I have to use Java Mapping class. The question that I am pondering is around maintaining the sequence as the class is called per execution.
I have now a not-so-elegant solution, where I retain the sequence value in the file system that gets updated everytime. This way, I can maintain a lock on the file in the unlikely event that the interface is invoked parallely.
I plan to look at creating a java table on the database to maintain the sequence value using JDBC/JDO. The GlobalContainer is out of the quesion, as far as I see.
Thanks for your input Udo.
Best regards,
Kapila

Similar Messages

Global Variable in JAVA

Hi I am new to Java but have been programming in other languages for sometime.
What I want to achieve is to have some global variables that I can use in other classes. This was particularly difficult because I want to use these global variable in Switch/Case statements. I thought this was solved by creating the following class
public final class IntObj {
public static final int ftsefut_contract_id = 2;
so in another class i would use IntObj.ftsefut_contract_id in the switch/case and it worked. However, i now am begining to think this is not working. Usng NetBeans, if I change the value of ftsefut_contract_id from 2 to 3 and "clean and rebuild", I am still seeing the value of ftsefut_contract_id to be 2 and not the new value (ie 3) that I have inputed. Can someone please explain is there a better method of having global variables and if not how do I get NetBean or the project to flush itself and reload the new values each time I rebuild.
Thanks

That behaviour is explicitly permitted by the Java specifications.
Use an enum.

GlobalContainer x Global Variable Java Section

Guys,
My requirement: I have a variable that'll be read from message header with DynamicConfiguration and will be used in several UDFs in a message mapping.
Are there any problems in using either GlobalContainer object or Global Variable in Message Mapping Java Section for storing/recovering this variable?
And in the case I use Java Sections, suppose I have the following:
Global Variables
String param = null;
Initialization Section
param = "value";
Then, what do I need to use in Clean-up Section? Should I give it a null value or an empty string value? I mean, I can't understand the necessity of this section, since garbage collector would handle that variable (and supposing it will be valid only during this message mapping thread).
Any thoughts?
Thanks in advance,
Henrique.

Hey William,
thank you for your input.
Yeah, I thought that too, that clean-up section would be useful when I needed to use .close() methods on the open objects.
And since java sections are newer, I think they are the prefered way too.
Regards,
Henrique.

Mapping global variables

Hi,
I have written a UDF which returns data in the form of a string with comma ',' seperated.
I wanted to get each value seperately and directly map them to the output data type.
Is it possible to seperate the string that is comma seperated and pass them into Global variables and use global variables to directly map with reciever datatype?
Or is there any other method to handle this using other existing functions to split the returned value?
Please help. Thanks in Advance
Rohan.

Hi,
Is it possible to seperate the string that is comma seperated and pass them into Global variables and use global variables to directly map with reciever datatype?
I think Java mapping is good for this scenario....
Regards,
Vivek LR

Global variable in Mapping

Hi,
Is there a way to declare a global variable in a mapping? e.g if I want to use a counter variable...
Zahid

Hi again,
I've previously used the mapping input parameters successfully to bind a name (read-only) to the value of an expression, which is particularly effective when you want to filter an ODBC source with a non-trivial expression, which otherwise means the filtering is done on the target side (expensive).
Unfortunately, Zahid wants to change the global variable within a transformation, and that is a side effect I believe is not allowed in SQL (set mode). Also, transformations live in a separate PL/SQL package, which means that the transformations have no access to the mapping input parameters. Hence my (untested) suggestion that using row mode and developing a separate "global variable" package might do the trick.
Regards, Hans Henrik

Reg Global Variable in PI 7.1

Dear All
We have a scenario where we need to validate contents of variuos fields in an xml file. As the validations are complex we want to store the exceptions inside a global variable so that all the exceptions can be segregated at a single point.
Consider the following source structure
Vendor No.
Order No.
Invoice No.
Claim No.
Customer No.
CustomerName
Needs to be maaped to following target structure
Vendor No.
Order No.
ClientName
Exception
Text
if in the Sender side, Vendor no/orderno/invoice no is not there then the text fied should be populated in the Reciever side with the exception , this challenge has to to be achived using the Global Variable.
Regrads,
Sourabh

Hi Nirmal,
The exception you are going to send is a Type of Text message or its like java exceptions??
If you are validating 5 or 6 fields then its better to do it at Message mapping level,use Global variale ,first create a global variable and check the condition if Vendor not exists pass exception message to Global Variable.
Then map this global variable to Text message segment in Receiver side.
I had done validating Two CIDX Orderchange documents using JAVA Mapping,its worked perfectly for my requirement(bit complex requirement).
Regards,
Raj

Global Variable as an array

Hi All,
Culd you please tell me where I can declare a global variable as an array in PI 7.1.
In PI 7.O we used to store global variables in java sections and it was recognized across mapping in message mapping
In PI 7.1 I have declared a variable in init function in functions tab in message mapping but its not recognized in my mapping.
Could you please help me with this?
Where I have to declare a global variable so that I can use it anywhere in mapping?
Thanks in advance
Best Regards,
Harleen Kaur Chadha

Please refer to the below link about how to use global variables in PI 7.1.
/people/william.li/blog/2008/02/13/sap-pi-71-mapping-enhancements-series-using-graphical-variable
This link will help you understand how to use graphical valiable as a global variable.
Thanks,
Hetal

Global Container in Java Class of Interface Mapping

I have written a Java Class that implements the StreamTransformation interface for use in an Interface Mapping. I would like to cache information read from a file between message processing calls of this mapping.
It appears that maybe the GlobalContainer object can be used to perform this caching. How do I access the GlobalContainer object from a class that implements StreamTransformation?
The examples all show container.getGlobalContainer() method call to get access to this object. However container is not a variable in this interface. Any ideas on how to do this?
Thanks,
Jay

Hi Jay,
if you want to link data from different messages you must use BPM, you cannot do this with GlobalContainer because it is instantiated at the begin of the mapping and is flushed at the end of the mapping (e.g. graphical mapping).
2 files for the same scenario will use 2 different instances of the same message mapping program and they will not share the container.
The container is shared inside the same instance of the mapping program.
So it is shared for example between two UDF in the same mapping
So if you are using Java mapping you do not need to use the global container, you can use an Object to store data, but keep in mind that all this data will be lost at the end of the mapping.
Hope it helps,
Kind Regards,
Sergio

How to go to java section global variable declaration

Hi all
i am following this scenario
http://www.sdn.sap.com/irj/scn/weblogs;jsessionid=(J2EE3417100)ID0446700150DB10376299506581707969End?blog=/pub/wlg/11287
in this scenario 3rd screen shot is about global variable declaration:
In order to build the content of the attachment (for this particular requirement) we use a global variable declared and initialized in the global sections :
can any body tell me how to go to this java section screen , as i am unable to find this java screen....
Thanks
sandeep

even i cant see this edit java section
i am working on PI 7.1. has this feature been removed in pi 7.1
this is replaced in PI7.1 ... check this blog on how to use the "global" variable in PI7.1:
/people/william.li/blog/2008/02/13/sap-pi-71-mapping-enhancements-series-using-graphical-variable
Regards,
Abhishek.

Java Threads vs. Native Global Variables

A brief description of the problem:
I am trying to integrate a multi-threaded Java app with legacy Fortran code. The Fortran code in question makes extensive use of global variables in the form of Fortran's Common Block data structure.
If multiple threads were allowed access to a native routine, they would over write each others data which is stored in global variables.
If only one thread at a time can have access to the native routine for the duration of the native routine, the whole advantage of using threads is completely nullified.
These native routines cannot be rewritten (3rd party code) and must be used.
One solution I envisioned was to load a new copy of the native shared object code for each Java object that used the native code. However, it seems System.loadLibrary() can only be used in a static context.
Is there any known solution to this problem?

Here is an elaboration on the earlier suggestions. It's a high overhead solution, because you have to start a bunch of JVMs.
1. You have a java control program, which will start up a pool of "services", make requests to them, and gather the results.
2. Each service is a small java program with a native method:
o java communications front-end.
o native method declaration.
o native - in your case fortran - method implementation.
3. Each service is started using "exec". That puts it in a separate process.
4, Since each service is a java program, you can use java to do communications between the control program and the service.
o You could use RMI.
o You could - perhaps - use java Process communications, i.e., have the services write to stdout, and have the control program capture the output.
o You could use socket communications.

XI 3.0: Using global variables in mapping

Hi everybody
Since it seems that during mapping you have only access to messages fields, does anybody has got idea or a workaround to use global/external variables or constants during mapping??
Example: i would like to store the mail address where i send my error mails outside each mapping program (something like using a properties file or something like that).
Any idea???

Hi,
U can refer to the following links in help.sap.com
GlobalContainer Object
http://help.sap.com/saphelp_nw04/helpdata/en/75/8e0f8f3b0c2e4ea5f8d8f9faa9461a/content.htm
Container Object
http://help.sap.com/saphelp_nw04/helpdata/en/78/b4ea10263c404599ec6edabf59aa6c/content.htm
Also some of the RUN TIME CONSTANTS are available in your BPM. So if you are trying to retrieve those variables in your Mapping(that is used in BPM), also read the following thread.
Re: Message id in BPM
Cheers,
Siva Maranani.

Jdev+ADF Mobile : Error java.lang.NullPointerException,need global variable

hi, i am using jdeveloper version 11.1.1.1.0.
i try to get value of field "id" from a table "customer" from input value from "username" and "password" form in welcome / login page.
the value of field "id" that logged on will be used for further operation like determine relationship with other table for showing data.
to accomplish that, i create a new java class "bean.java"
the content is simple, just a few variable like : eeid,eeuser,eepass, and more else.
each variable have accessors.
after create "bean.java", i register that class to faces-config.xml in managed beans tab. i give it description like below :
- name : beanku
- class : mvc.bean
- scope : session
to login, i check the login button with code like this :
public String cmdSigninee_action() throws ClassNotFoundException, SQLException {
String tuser = (String) inputUseree.getValue(); --> value of username
String tpass = (String) inputPassee.getValue(); --? value of password
bean ong = (bean) FacesContext.getCurrentInstance().getExternalContext().getSessionMap().get("beanku"); --> it's ok here
ong.setSeeid("testing"); --> here is the error
i got an error message like shown below :
Target URL -- http://127.0.0.1:7101/madf-mvc-context-root/faces/welcome.jsp
Dec 4, 2009 11:39:26 PM oracle.jbo.uicli.mom.CpxUtils$Visitor logMainApplicationCpx
INFO: file:/C:/Documents and Settings/Ong/Application Data/JDeveloper/system11.1.1.1.33.54.07/o.j2ee/drs/madf/madf-mvc-webapp/WEB-INF/classes/mvc/DataBindings.cpx
Dec 4, 2009 11:39:27 PM oracle.adfinternal.controller.faces.lifecycle.JSFLifecycleImpl setLifecycleContextBuilder
INFO: ADFc: Initializing ADF Page Lifecycle for the JSF environment, LifecycleContextBuilder is 'oracle.adfinternal.controller.application.model.JSFDataBindingLifecycleContextBuilder'.
Dec 4, 2009 11:40:21 PM com.sun.faces.application.ActionListenerImpl processAction
SEVERE: java.lang.NullPointerException
javax.faces.el.EvaluationException: java.lang.NullPointerException
     at org.apache.myfaces.trinidad.component.MethodExpressionMethodBinding.invoke(MethodExpressionMethodBinding.java:51)
     at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
     at org.apache.myfaces.trinidad.component.UIXCommand.broadcast(UIXCommand.java:190)
     at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:475)
     at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:756)
     at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:82)
     at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
     at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
     at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
     at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
     at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:292)
     at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:191)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:247)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:157)
     at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.security.jps.wls.JpsWlsFilter$1.run(JpsWlsFilter.java:96)
     at java.security.AccessController.doPrivileged(Native Method)
     at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)
     at oracle.security.jps.wls.util.JpsWlsUtil.runJaasMode(JpsWlsUtil.java:146)
     at oracle.security.jps.wls.JpsWlsFilter.doFilter(JpsWlsFilter.java:140)
     at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:70)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.dms.wls.DMSServletFilter.doFilter(DMSServletFilter.java:202)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3588)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
     at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2200)
     at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2106)
     at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1428)
     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
     at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
Caused by: java.lang.NullPointerException
     at mvc.backing.Welcome.cmdSigninee_action(Welcome.java:380)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at com.sun.el.parser.AstValue.invoke(AstValue.java:157)
     at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:283)
     at org.apache.myfaces.trinidad.component.MethodExpressionMethodBinding.invoke(MethodExpressionMethodBinding.java:46)
     ... 38 more
Dec 4, 2009 11:40:21 PM com.sun.faces.lifecycle.InvokeApplicationPhase execute
WARNING: #{backing_welcome.cmdSigninee_action}: java.lang.NullPointerException
javax.faces.FacesException: #{backing_welcome.cmdSigninee_action}: java.lang.NullPointerException
     at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:118)
     at org.apache.myfaces.trinidad.component.UIXCommand.broadcast(UIXCommand.java:190)
     at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:475)
     at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:756)
     at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:82)
     at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100)
     at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118)
     at javax.faces.webapp.FacesServlet.service(FacesServlet.java:265)
     at weblogic.servlet.internal.StubSecurityHelper$ServletServiceAction.run(StubSecurityHelper.java:227)
     at weblogic.servlet.internal.StubSecurityHelper.invokeServlet(StubSecurityHelper.java:125)
     at weblogic.servlet.internal.ServletStubImpl.execute(ServletStubImpl.java:292)
     at weblogic.servlet.internal.TailFilter.doFilter(TailFilter.java:26)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:191)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl._doFilterImpl(TrinidadFilterImpl.java:247)
     at org.apache.myfaces.trinidadinternal.webapp.TrinidadFilterImpl.doFilter(TrinidadFilterImpl.java:157)
     at org.apache.myfaces.trinidad.webapp.TrinidadFilter.doFilter(TrinidadFilter.java:92)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.security.jps.wls.JpsWlsFilter$1.run(JpsWlsFilter.java:96)
     at java.security.AccessController.doPrivileged(Native Method)
     at oracle.security.jps.util.JpsSubject.doAsPrivileged(JpsSubject.java:313)
     at oracle.security.jps.wls.util.JpsWlsUtil.runJaasMode(JpsWlsUtil.java:146)
     at oracle.security.jps.wls.JpsWlsFilter.doFilter(JpsWlsFilter.java:140)
     at oracle.security.jps.ee.http.JpsFilter.doFilter(JpsFilter.java:70)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at oracle.dms.wls.DMSServletFilter.doFilter(DMSServletFilter.java:202)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at weblogic.servlet.internal.RequestEventsFilter.doFilter(RequestEventsFilter.java:27)
     at weblogic.servlet.internal.FilterChainImpl.doFilter(FilterChainImpl.java:56)
     at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:3588)
     at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)
     at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:121)
     at weblogic.servlet.internal.WebAppServletContext.securedExecute(WebAppServletContext.java:2200)
     at weblogic.servlet.internal.WebAppServletContext.execute(WebAppServletContext.java:2106)
     at weblogic.servlet.internal.ServletRequestImpl.run(ServletRequestImpl.java:1428)
     at weblogic.work.ExecuteThread.execute(ExecuteThread.java:201)
     at weblogic.work.ExecuteThread.run(ExecuteThread.java:173)
Caused by: javax.faces.el.EvaluationException: java.lang.NullPointerException
     at org.apache.myfaces.trinidad.component.MethodExpressionMethodBinding.invoke(MethodExpressionMethodBinding.java:51)
     at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
     ... 37 more
Caused by: java.lang.NullPointerException
     at mvc.backing.Welcome.cmdSigninee_action(Welcome.java:380)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     at com.sun.el.parser.AstValue.invoke(AstValue.java:157)
     at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:283)
     at org.apache.myfaces.trinidad.component.MethodExpressionMethodBinding.invoke(MethodExpressionMethodBinding.java:46)
     ... 38 more
Dec 4, 2009 11:40:21 PM com.sun.faces.lifecycle.Phase doPhase
SEVERE: JSF1054: (Phase ID: INVOKE_APPLICATION 5, View ID: /welcome.jsp) Exception thrown during phase execution: javax.faces.event.PhaseEvent[source=com.sun.faces.lifecycle.LifecycleImpl@8aa35b]
<Dec 4, 2009 11:40:21 PM ICT> <Error> <HTTP> <BEA-101017> <[ServletContext@14855001[app:madf module:madf-mvc-context-root path:/madf-mvc-context-root spec-version:2.5], request: weblogic.servlet.internal.ServletRequestImpl@5a2f7[
POST /madf-mvc-context-root/faces/welcome.jsp?_adf.ctrl-state=4p5g40az1_4 HTTP/1.1
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/x-shockwave-flash, application/vnd.ms-excel, application/vnd.ms-powerpoint, application/msword, */*
Referer: http://127.0.0.1:7101/madf-mvc-context-root/faces/welcome.jsp;jsessionid=vs4JLZ7ppccm9mdq4z1RJn31c1Qj9ZpLmdHhT2BGTThzP7JnZfmJ!1909271282?_adf.ctrl-state=4p5g40az1_4
Accept-Language: en-us
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727)
Content-Length: 346
Connection: Keep-Alive
Cache-Control: no-cache
Cookie: JSESSIONID=vs4JLZ7ppccm9mdq4z1RJn31c1Qj9ZpLmdHhT2BGTThzP7JnZfmJ!1909271282
]] Root cause of ServletException.
javax.faces.FacesException: #{backing_welcome.cmdSigninee_action}: java.lang.NullPointerException
     at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:118)
     at org.apache.myfaces.trinidad.component.UIXCommand.broadcast(UIXCommand.java:190)
     at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:475)
     at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:756)
     at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:82)
     Truncated. see log file for complete stacktrace
javax.faces.el.EvaluationException: java.lang.NullPointerException
     at org.apache.myfaces.trinidad.component.MethodExpressionMethodBinding.invoke(MethodExpressionMethodBinding.java:51)
     at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)
     at org.apache.myfaces.trinidad.component.UIXCommand.broadcast(UIXCommand.java:190)
     at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:475)
     at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:756)
     Truncated. see log file for complete stacktrace
java.lang.NullPointerException
     at mvc.backing.Welcome.cmdSigninee_action(Welcome.java:380)
     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
     at java.lang.reflect.Method.invoke(Method.java:597)
     Truncated. see log file for complete stacktrace
>
anyone can help me with those errors? i just need global variable, so i can use it for check relationship with other table.
or if anyone of you can give me another way to get the value of field "id" from a table?
thank you so much before! and i am sorry if my english is bad.

If you select the JSP page in the graphical stuts-config.xml overview in JDeveloper, you should see the properties of the JSP page in the property inspector. One of those properties defines the Java class that handles the action/forwarding/etc.
Then you should create a new Java-class that extends the original action handling class. Change the property in the graphical stuts-config.xml overview in JDeveloper to this new class.
Then add an event attribute to the submitbutton element in the form of your JSP page, e.g. seeDetails.
In your newly created class you can then create a new method: onSeeDetails. This method should be invoked when the submit button is pressed and the form is submitted.
In the ADF ToyStore demo there are some examples of Java classes that extend the standard action handler. There in the ViewController project.
ROnald

How to: Transform Activity: Read global/local variable, execute java code

Could anyone please show me how to do that???

could you please elaborate your usecase? yes you can read global variable using getVariableData( ) xpath function and pass them as an argument to the processXSLT ( ) xpath function.
You can read the global or local variables inside java exec using, please refer samples/references/javaexec sample.

Global Variables declaration in PI 7.1

Hi All,
In message mapping where can I declare global variables in PI 7.1.
Thanks and regards
Uma

Hi Sarvesh,
Thank you for the response.
The blog given by you is on PI 7.0, But icon(Java Sections) is not present in PI 7.1 mapping editor .
Please guide me how can I proceed further.
Thanks & regards
Uma
Edited by: Uma Balasubramanya on Mar 20, 2009 1:11 PM

Global Variable in entity beans

Dear Friends,
For example let us think that we have an entity bean for Customer.
and we created an instance of that bean for customer A and then for customer B.
So will the global variables in Customer bean be shared across Customer A and Customer B or will there be seperate instances for both Customers.
Thanking You,
Chamal.

Your concepts seem to be a little messed up.
For entity bean, remember the following:
1. each object/instance of entity bean represents a record in a database
2. when a client looks up an entity bean (typcially by using findByPrimaryKey method on home object), the record from database is searched and its values are stored in Entity Beans variables (this is probably what you mean by Global Variable. But thats an incorrect terminology in Java/J2EE. Class attribute is the correct word)
3. In step 2, you fetched a record and that record is represented by a java object, which is nothing but entity bean.
4. Now if you make changes to this java object, these changes will persist in the database. That is the essence of entity bean.
5. If you use the home object's findByPrimaryKey method and look for the same record, no new object will be created. The 2 remote objects will point to the same entity bean on the server.
6. If yo use the home object's findByPrimaryKey method and look for another record/customer, a new object will be created on the server. This new entity bean will map to the new record.
Note taht the attribtues of CustomerA and customerB will never be shared.
hope that helps

Global variables in Java Mapping

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