RE: Help calling java from RPG

["Dan Kimmel" <dkimmel@xxxxxxxxxxxxxxx>]

Chris,

I don't see where you're instantiating the em object. You have declared
it, but not filled it. I would think your find would throw a null
pointer exception.

Dan Kimmel 

-----Original Message-----
From: java400-l-bounces@xxxxxxxxxxxx
[mailto:java400-l-bounces@xxxxxxxxxxxx] On Behalf Of Chris Beck
Sent: Monday, August 24, 2009 10:01 AM
To: java400-l@xxxxxxxxxxxx
Subject: Help calling java from RPG

Hello, 

I am creating a RPG program that calls multiple Java method from RPG and
am having problems with one of them.  In the code snippet below I am
wondering how to set the hxplvl6Class field to the propper value? in
Java I would just use the following: "Hxplvl6 hxplvl6 =
em.find(Hxplvl6.class, l6number);"

     D em...
     D                 S               O   CLASS(*JAVA:
'javax.persistence.En+
     D                                     tityManager' )
     
     D HxpLvl6         S               O   CLASS(*JAVA :
'java.lang.Object' )

     D hxplvl6Class    S               O   CLASS(*JAVA :
'java.lang.Class' )
     D l6Number        S               O   CLASS(*JAVA :
'java.lang.Object' )
     
     D find            PR              O   CLASS(*JAVA :
'java.lang.Object' )
     D                                     EXTPROC(*JAVA :
'javax.persistence+
     D                                     .EntityManager' : 'find' )
     D  pmClass                        O   CLASS(*JAVA :
'java.lang.Class' )
     D  pmKey                          O   CLASS(*JAVA :
'java.lang.Object' )
     

      /Free
        HxpLvl6 = find(em:hxplvl6Class:l6Number)
 
Thanks for any help, 

Chris


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