Problem to remove an EJB
Hi,
i have an exception when i want to remove my EJB :
"java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
javax.transaction.TransactionRolledbackException"
What is the problem ??
Thanks in advance
Steve
Hi Steve
i think You are using BMP.In that case Check SQLs in Remove , Load , Store.
For this
First comment Code Completely in Load and Store method. and check if the same error is coming or not.
Also you check you can delete same Record without using bean(I mean check that there is no security).
Viren Jasani
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Hello ! Could anybody assist me to solve this problem ?
When I try to create EJB Control I can't receive list of application EJB. I'm receiving message no resources found in corresponding dialog for ejb's list. I can't understand what happened with application because some days before I created ejb controls without any problems.Hi
Which version of workshop are you on? Version: 9.2.1
Also do you have ejb projects in the application that
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For the application EJB list, we are looking through
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>
Do you see any error in the error log view when you
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Design problem involving Wildcards and EJB-QL.
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Integer bedrooms = ??; // same here for Integer....
String realtorName = "*"; //i think this is valid wildcard for strings
*snip*
//if price supplied set price to input value
if (myObject.getPrice() != null){
price = myObject.getPrice();
//if bedrooms supplied set bedrooms to input value
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Collection c = findByFullMonty (price, bedrooms, realtorName, *snip*); What i'm tyring to achieve is a single query that will work no matter how many of the input paramaters are supplied. Any supplied parameters are used, and those that are not supplied will use wildcard instead. I don't want to make a seperate query for every possible permutaion of supplied input parameters. Can this be done? If so, am I even close or out in left field? Is there a design pattern I should look into for this problem?
Thanks for any help guys!
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private Object getRemoteObject(Context pCtx, String pJNDIName, String pHomeBean)
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String homeCreate = "create";
Class []homeCreateParam = { };
Object []homeCreateParamValues = {};
try {
//This call seems to work and doesn't throw an exception
Object home = pCtx.lookup(pJNDIName);
//However this call throws a java.lang.ClassNotFoundException
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Congratulations! I'm very happy that you've managed to fix your problem. It's
always essential to understand how to package applications when deploying on BEA
WebLogic. Usually, by throwing everything into an EAR file solves just about all
the class loader problems. :-) Let us know if you have any further problems that
we can assist you with.
Best regards,
Ryan LeCompte
[email protected]
http://www.louisiana.edu/~rml7669
"Joanne Corless" <[email protected]> wrote:
>
>
I've fixed it!!!!!!!!
Thanks to everyone who gave me help!!!!
The class loader was the culprit which is what I suspected all along.
As soon
as I put the 2 jar files I was using into an EAR file the problem went
away!!!!!
Thanks again
Jo Corless
"Ryan LeCompte" <[email protected]> wrote:
Hello Joanne,
As Mr. Woollen mentioned, I also believe it's a problem with the class
loader.
You need to be careful how you arrange your EJBs, because WebLogic has
a specific
method in which it loads classes in an EAR, JAR, and WAR file(s). Please
refer
to http://dev2dev.bea.com/articles/musser.jsp for more information about
BEA WebLogic
class loading mechanisms and caveats. Also, try printing out the various
methods
that are available on the object that was returned to you via reflection.
For
example, use the getMethods() method, which returns an array of Method
objects
that you can subsequently cycle through and print out the various method
names.
This way you can discover if the class found/returned to you is indeed
the one
you intend to locate.
Hope this helps,
Ryan LeCompte
[email protected]
http://www.louisiana.edu/~rml7669
Rob Woollen <[email protected]> wrote:
I believe the issue is the home interface class for this EJB is not
available in the class loader which is doing the reflection.
If you do:
getClass().getClassLoader().loadClass(homeInterfaceClassName)
I suspect it will fail. Reflection still requires that the class be
loadable.
-- Rob
Joanne Corless wrote:
Hi Slava,
If I make my code look like you describe below I get a compliationerror telling
me that
home.getMethod() is not recognised (no such method)
If I change it slightly and use
Method homeCreateMethod =
home.getClass().getMethod(homeCreate,homeCreateParam);
The code will compile OK but when executed it still throws a NoSuchMethodException
Any ideas ?
Thanks for your help so far
Regards
Jo Corless
Your code should look like
Object home = pCtx.lookup(pJNDIName);
Method homeCreateMethod =
home.getMethod(homeCreate,homeCreateParam);
return homeCreateMethod.invoke(home, homeCreateParamValues);
Regards,
Slava Imeshev
"Joanne Corless" <[email protected]> wrote in message
news:[email protected]...
Hi Ryan,
I also wanted to mention that if you do a "header search" in this
particular
newsgroup
with the search query as "reflection", you will see many previousmessages
regarding
reflection and EJBs. I believe you could learn a lot from thedifficulties
that
others have faced and solved.I tried that and although there was a number of similar cases noneof them
actually
seem to fix my issue. Thanks for the suggestion though
Are the EJBs that you are trying to access accessible via your
system
classpath?
Try to avoid having them accessible via the main system classpath,and
only bundle
them in your appropriate EJB jar files (contained in an EAR file,for
example).Maybe I should have laid the problem out a little clearer.
I have a number of EJB's bundled up in a JAR file which is hot deployedto
the
server. Within this first JAR file is an EJB (SSB) component that
needs
to
be
able to invoke a known method on another EJB. This second EJB may
or
may
not be
within the first JAR file but it also will be hot deployed.
The component trying to invoke the method on the 2nd EJB has to
be
able to
create
an instance of the 2nd EJB without actually knowing anything bar
a
JNDI
Name which
is passed in at runtime.
I can get as far as doing the
Object home = pCtx.lookup(pJNDIName);
This returned a class with the name
"com.csc.edc.projects.allders.httppostoffice.postman.PostmanBean_mp8qy2_Home
Impl_WLStub"
My problem seems to occur when I try and invoke the create method
Method homeCreate = home.getClass().getMethod("create", new Class[0]);
My code throws a java.lang.NoSuchMethodException at this point so
I
am
unable
to progress to the next step of :
Object bean = homeCreate.invoke(home, null);
So I can return the instantiated bean back to the calling client.
Why am I getting the NoSuchMethodException, is is because I am gettinga
stub
back rather than the home interface and if so how do I get the truehome
interface
from the bean
Thanks in advance
Jo Corless -
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Thanks a lotWe don't recommend explicitly instantiating the CosNaming provider within a stand-alone java client when accessing beans within the Java EE SDK. We have a simpler approach that involves just instantiating the no-arg InitialContext. Details are in our EJB FAQ :
https://glassfish.dev.java.net/javaee5/ejb/EJB_FAQ.html
--ken -
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Final Cut Express to Final Cut X
I have started what is turning out to be the most difficult project ever in Final Cut Express HD. It involved using the logging and transfer function because there was AD video involved and AVCHD footage. I am thinking of getting Final Cut Pro X. It
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EXECUTE IMMEDIATE within Procedure doesn't work!!
Hi, I have a code in which the procedure is successfully created, but when I try to check if the table TEST_TABLE is created (ex, DESC TEST_TABLE) it generates an error: ORA-04043: object TEST_TABLE does not exist Which means that my EXECUTE IMMEDIAT
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Can I get the free version of OS X Lion for my new Macbook beyond the US?
Hi, I've purchased my Macbook end of June, so I've read that the new OS X Lion is for free. But it seem so that this is only possible in the US, becuase I have no chance to indicate my homeland and town (which is in Europe). Any cahnces? Thanks. Gree
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The question says it all. If the answer is no, is there a work around? I'd really appreciate help with this - very frustrating (but possibly simple when you know how)