Mvc cant access repository classes from static functions in controller(mvc net c# Entity Frame work)

I working on .net MVC Entity Framework (Code First).
I am not able to get Datacontext in repository classes functions when i call these functions from a static function in controller . I am getting the Exception
"An exception of type 'System.NullReferenceException'
occurred in YYYYYY.Web.dll(Default
project dll) but was not handled in user code
Additional information: Object reference not set to an instance of an object."
i need to call static functions since i had to call some functions asynchronously.Like Report generation
This works perfectly fine when called from a non static function in controller.
Thanks in advance
Punnoose

But when i call a function in repository class, With dependency Injection(NInject).
eg:-
public Batch GetBatchDetail(string batchID)
return this.db.Batches.Where(x => x.ID=batchID).FirstOrDefault();
Db is Datacontext
I am getting the Exception "An exception of type 'System.NullReferenceException'
occurred in YYYYYY.Web.dll(Default
project dll) but was not handled in user code
Please do help me
regards
punnoose

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"L. W. Xu" wrote:
I have a session bean trying to access a utility class in the lib directory(same
directory as weblogic.jar). I have packaged it into a jar file and
set
the classpath
pointing to the file in the startWeblogic.cmd file. I compiled and
depolyed
the session
bean and it runs fine until it starts to access the class. I got NoClassFoundException.
I have tried to shut down and restart the server without any success.Anyone can
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don't
want to
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it?
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L.W.Xu--
AVAILABLE NOW!: Building J2EE Applications & BEA WebLogic Server
by Michael Girdley, Rob Woollen, and Sandra Emerson
http://learnWebLogic.com
<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
If your utility.jar is standalone, then your approach is fine. However,
it sounds like it is referencing a class that's only
 available in your ejb.jar. That won't work.
-- Rob
"L. W. Xu" wrote:
<blockquote TYPE=CITE>I have a session bean trying to access a utility
class in the lib directory (same
 directory as weblogic.jar). I have packaged it into a jar file and
set the classpath
 pointing to the file in the startWeblogic.cmd file. I compiled and
depolyed the session
 bean and it runs fine until it starts to access the class. I gotNoClassFoundException.
 I have tried to shut down and restart the server without any success.
Anyone can
 help me this this?
I know I can package the utility into the same jar as my ejb. ButI
don't want to
 do it because it is going to be everywhere. What is the right wayof
doing it?
Thanks in advance.
L.W.Xu</blockquote>
<pre>--
AVAILABLE NOW!: Building J2EE Applications & BEA WebLogic Server
by Michael Girdley, Rob Woollen, and Sandra Emerson
http://learnWebLogic.com</pre>
</html>
AVAILABLE NOW!: Building J2EE Applications & BEA WebLogic Server
by Michael Girdley, Rob Woollen, and Sandra Emerson
http://learnWebLogic.com
<!doctype html public "-//w3c//dtd html 4.0 transitional//en">
<html>
If it's in the server classpath, the ejb will have no problem finding it.
Either you have a typo and the class is not in the classpath.
You can prove this by running javap on the class using the same classpath
as your startWebLogic script.
Or, as I suggested in the last response, it's not really standalone.
The jar probably has a dependence on some classes in the ejb.jar.
-- Rob
 
"L. W. Xu" wrote:
<blockquote TYPE=CITE>Rob,
It is a standalone generic jar which has some classes in it. The ejb
just can't find
 it.
I have a simple java program which uses it and it runs fine.
Thanks.
L. W. Xu
Rob Woollen <[email protected]> wrote:
 >
 >
 >If your utility.jar is standalone, then your approach is fine.
However,
 >it sounds like it
 >is referencing a class that's only
 >available in your ejb.jar. That won't work.
 >
 >-- Rob
 >
 >"L. W. Xu" wrote:
 >
 >> I have a session bean trying to access a utility class in the lib
directory
 >(same
 >> directory as weblogic.jar). I have packaged it into a jar file and
set
 >the classpath
 >> pointing to the file in the startWeblogic.cmd file. I compiled and
depolyed
 >the session
 >> bean and it runs fine until it starts to access the class. I got
NoClassFoundException.
 >> I have tried to shut down and restart the server without any success.
 >Anyone can
 >> help me this this?
 >>
 >> I know I can package the utility into the same jar as my ejb. But
I don't
 >want to
 >> do it because it is going to be everywhere. What is the right way
of doing
 >it?
 >>
 >> Thanks in advance.
 >>
 >> L.W.Xu
 >
 >--
 >
 >----------------------------------------------------------------------
 >
 >AVAILABLE NOW!: Building J2EE Applications & BEA WebLogic Server
 >
 >by Michael Girdley, Rob Woollen, and Sandra Emerson
 >
 >http://learnWebLogic.com
 >
 >
 >
 >
 ><!doctype html public "-//w3c//dtd html 4.0 transitional//en">
 ><html>
 >If your utility.jar is standalone, then your approach is fine.
However,
 >it sounds like it is referencing a class that's only
 > available in your ejb.jar. That won't work.
 >-- Rob
 >"L. W. Xu" wrote:
 ><blockquote TYPE=CITE>I have a session bean trying to access a
utility
 >class in the lib directory (same
 > directory as weblogic.jar). I have packaged it into a jar file
and
 >set the classpath
 > pointing to the file in the startWeblogic.cmd file. I compiled
and
 >depolyed the session
 > bean and it runs fine until it starts to access the class.
I got NoClassFoundException.
 > I have tried to shut down and restart the server without any
success.
 >Anyone can
 > help me this this?
 >I know I can package the utility into the same jar as my ejb.
But I
 >don't want to
 > do it because it is going to be everywhere. What is the right
way of
 >doing it?
 >Thanks in advance.
 >L.W.Xu</blockquote>
 >
 ><pre>--
 >
 >----------------------------------------------------------------------
 >
 >AVAILABLE NOW!: Building J2EE Applications & BEA WebLogic Server
 >
 >by Michael Girdley, Rob Woollen, and Sandra Emerson
 >
 >http://learnWebLogic.com"><a
href="http://learnWebLogic.com">http://learnWebLogic.com</a></A></pre>
 > </html>
 >
 ></blockquote>
<pre>--
AVAILABLE NOW!: Building J2EE Applications & BEA WebLogic Server
by Michael Girdley, Rob Woollen, and Sandra Emerson
<A HREF="http://learnWebLogic.com">http://learnWebLogic.com</A></pre>
</html>

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