EJB Callout from Oracle 9i (9.2.0.5.0 database)

I've been reading up on this topic over the last few days but still haven't come to a definitive conclusion
Is it possible to deploy a java stored procedure on Oracle 9i Database R2 (9.2.5.0) to connect to a EJB on a remote OC4J instance (10g app server)?
I have successfully written a standalone client which runs under the same jvm as oracle db and can connect to my ejb (running later version of java). But using various combinations of loadjava, I still cannot get the libraries and classes to load into the database with a VALID status, specifically RMIInitialContextFactory.
This document doesn't specifically rule it in or out as far as I can make out:
http://www.oracle.com/technology/tech/java/htdocs/9idb2_java.html
Others posts refer to getting this working using iiop but from 10g database, can this work in 9i R2? I don't have the book mentioned in these posts by Kuassi Mensah but the examples didn't have the code that I was looking for.
Re: com.sun.jndi.cosnaming.CNCtxFactory in java stored, makes ORA-03113
Re: Can I call an EJB from the database?
This paper sets out an example but it is based on Oracle 9i R1, so I am not sure if it is relevant:
http://www.oracle.com/technology/tech/java/java_db/pdf/OW_30820_JAVA_STORED_PROC_paper.PDF
Any help (are you listening Mr Mensah) would be appreciated.
Message was edited by:
skinsella

Hi,
Yes, i am listeneing :-)
It is not straightforward, you need to hack a bit the client code to use CosNaming lookup and start OC4J to listen to RMI/IIOP requests.
I am not trying to make you purchase my book but this is where i put all the details (chapter 4).
Kuassi http://db360.blogspot.com

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Decrypting data from Oracle 8.1.7.4 outside the database

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From what I have gathered, the obfuscation toolkit encrypts the data using
* CBC
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1)
================================================================================
FUNCTION des_encrypt
( string_in in VARCHAR2) RETURN VARCHAR2
IS
l_data varchar2(2000);
key_check_flag number;
l_encrypted_string varchar2(2000);
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-- the key and the input data must have a length
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l_data := RPAD(string_in,(TRUNC(LENGTH(string_in)/8)+1)*8,CHR(32));
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FUNCTION des_encrypt_hex
( string_in in VARCHAR2) RETURN VARCHAR2
IS
l_encrypted_string varchar2(2000);
BEGIN
l_encrypted_string := des_encrypt(string_in);
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END;
===============================================================================
And the way I call it:
DECLARE
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     STRING_IN VARCHAR2(2000) := '12345678901';
BEGIN
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GO
===============================================================================
2)
<?php
$space = chr(32);
$null = chr(0);
$key = "xxxxxxxx";
$input = "12345678901$space$space$space$space$space";
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?>

I might have been unclear in my initial post, but I do have the DES encryption key used on the Oracle side. If you got that part, then my question would be: Is the Oracle 8.1.7.4 DES encryption incompatible with every other DES encryption implementation out there?

Call a web services from oracle forms 10

I have to call a web services from oracle forms.
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obj ORA_JAVA.JOBJECT,
a0 ORA_JAVA.JOBJECT,
a1 ORA_JAVA.JOBJECT,
a2 ORA_JAVA.JOBJECT,
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2.
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TYPE opciones_obj AS OBJECT
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nombrecompleto VARCHAR2 (4000),
nombre VARCHAR2 (4000),
strtipodato VARCHAR2 (4000),
codigoopcion NUMBER,
floatval FLOAT,
strtipo VARCHAR2 (4000),
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nombrecompleto VARCHAR2 (4000)
PATH 'ns2:mapEntry[ns2:key="nombreCompleto"]/ns2:value',
nombre VARCHAR2 (4000)
PATH 'ns2:mapEntry[ns2:key="nombre"]/ns2:value',
strtipodato VARCHAR2 (4000)
PATH 'ns2:mapEntry[ns2:key="strTipoDato"]/ns2:value',
codigoopcion NUMBER
PATH 'ns2:mapEntry[ns2:key="codigoOpcion"]/ns2:value',
floatval FLOAT
PATH 'ns2:mapEntry[ns2:key="floatVal"]/ns2:value',
strtipo VARCHAR2 (4000)
PATH 'ns2:mapEntry[ns2:key="strTipo"]/ns2:value',
strval VARCHAR2 (4000)
PATH 'ns2:mapEntry[ns2:key="strVal"]/ns2:value') x;
xquery / xmltype aparently is not an option because the xml is too big.
I will appreciate your answers.
Thanks.
Edited by: user13058213 on 26-ene-2012 16:02

i created jar file to call it from forms
Could you be a little bit less vague about what you exactly did?
Anyway; see here http://bit.ly/10VVoMR
cheers

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Hi,
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Edited by: [email protected] on Mar 17, 2009 2:26 AM

Share with us exception trace for the same via email [email protected]/[email protected]
Before that, please try with access your EJBBean by creating simple java utility- may be webapplication or standalone.
If EJBBean possible to access means, we have to look into what went wrong. :)

Error while retreiving data from oracle using EJB.

HII All,
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Set-Cookie: <value is hidden>
Date: Mon, 24 Jul 2006 10:50:11 GMT
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Hi Devendra,
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Call EJB From Oracle Stored proc or Database loaded Java?

Are there any examples of calling an EJB, residing in the OC4J on a machine separate from the DB server,
from an Oracle PL/SQL stored proc.
The Stored proc can call java loaded into the DB. That java makes the intial bean context. Or another way if suggested.
The reason is that I need to use some drivers that I have so far been unable to load directly into the DB using
loadjava util. I plan on using the driver in the EJB, located on a different machine. But I'd like so know if its possible to
make the IntialContext call to the EJB container from PL/SQL. Are the OC4J drivers loadable to be
able to be called from a database loaded java class? ( I might be a little off on my terminology)
Bob
[email protected]

Hi Bob,
Your question has been previously asked on this forum many times already.
You can probably find the relevant postings by doing a search of the
forum archives.
To summarize those posts, as I understand it, the latest version of OC4J
(version 9.0.3) contains a "oc4jclient.jar" file (I think that's the name
of the file), that can be loaded into the Oracle database (using the
"loadjava" utility), and which allows a java stored procedure to invoke
methods on an EJB residing in OC4J.
Please note that I have not tried any of the above -- I am only summarizing
for you what has already been posted. And like I said before, a search
of the forum archives will probably give you more details.
Good Luck,
Avi.

Calling EJB from Oracle via IIOP

I've spent the last two days trying to figure out how I can call an
EJB from an Oracle Stored Procedure. I first looked into WLS JNDI
(Using WLInitialContextFactory ), but my collegue recommended I look
into IIOP because it is "less proprietary". I was able to get a WL
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object...so it looked promissing, but then I tried to load the JAR
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the Oracle ORB using session-iiop, but I don't know if Weblogic will
be able to work with this. I don't know how I'd even call it because
the URL requires an Oracle SID...so now what? I see three options.
Please let me know which would be best (or another option that I'm
missing)
1. Try connecting with Weblogic "T3"
2. Try to get the right combination of classes loaded so 1.2 can work
like 1.3
3. Use the Oracle IIOP (I have no examples for connecting to other
ORBs so I have no idea how to lookup objects).
Chris

[email protected] (Chris Snyder) writes:
Andy Piper <[email protected]> wrote in message news:<[email protected]>...
[email protected] (Chris Snyder) writes:
1. Try connecting with Weblogic "T3"It depends on what version of WLS you are using. If you are using 6.1
then you are out-of-luck because this only support JDK 1.3.1.We are using WLS 6.1 and Oracle 8.1.6. There's got to be a way to
connect what is essentially a 1.2 JVM to a 1.3.1 JVM. On my way home
yesterday I was wondering if just straight RMI would work...although
we need to encrypt the connection. I've seen several people talk
about calling EJB's from stored procedures so it seems like there is a
way. Any other ideas?The really gross way is HTTP. In a previous life I had a customer use
oracle's HTTP plug-in to do this. You could probably invert the
problem also. I.e. write CORBA objects that sit inside an Orb hosted
in WLS and invoke on those using oracle's CORBA support. But HTTP is
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over HTTP either - you would have to write a servlet that delegated to
your beans.
andy

How to get resultset from oracle procedure use ejb3

how to get resultset from oracle procedure use ejb3
i know oracle procedure should like this
Create or replace PROCEDURE resultset_test(
aaa IN NUMBER,
bbb OUT sys_refcursor) ....
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ths

- there are no EJB3 scripts, only compiled application code
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The classloader hierarchy in WLS looks like this (arrows denote inheritance direction):
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The Connection Manager is loaded by the web app classloader while the EJBs are loaded by the application classloader so the EJBs have no visibility to the classes loaded by the child (web app) classloader.
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Robert

Problems deploying EJB on a oracle 8i server

We are trying to deploy a EJB on a oracle 8i server. We crossposted this question in BI Beans forum also.
For doing so we are using the following command:
"deployejb -republish -temp temp -u sys -p sys -s sess_iiop://NLWS122:2481:
LOKAAL -descriptor AQServerReceive.ejb AQServerReceive.jar"
It seems that everything goes allright (we can trace the classes in the database) but we get this message:
Reading Deployment Descriptor...done
Verifying Deployment Descriptor...done
Gathering users...done
Generating Comm Stubs.............................................done
Compiling Stubs...done
Generating Jar File...done
Loading EJB Jar file and Comm Stubs Jar file...Exception in thread "main" org.om
g.CORBA.COMM_FAILURE: java.io.IOException: Peer disconnected socket minor code:
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at com.visigenic.vbroker.orb.TcpConnection.read(TcpConnection.java, Compiled Code)
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at oracle.aurora.server.tools.sess_iiop.Loadjar.invoke(Loadjar.java, Compiled Code)
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at oracle.aurora.server.tools.sess_iiop.Loadjar.<init>(Loadjar.java:52)
at oracle.aurora.ejb.deployment.GenerateEjb.invoke(GenerateEjb.java:560)
at oracle.aurora.server.tools.sess_iiop.ToolImpl.invoke(ToolImpl.java:143)
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What could be the problem?
More info:
We are trying to get the example in the white paper 275199.pdf (Building Internet Applications with Oracle Forms 6i and Oracle8i) working.
Thx for helping.

Hi Ralph,
I don't know if you are aware of this, but Oracle has replaced
the database embedded EJB container (a.k.a. "aurora") with an
external EJB container named OC4J (Oracle Containers for J2EE).
OC4J is available in both stand-alone version and as part of Oracle's
application server product: 9iAS. Although the database embedded
EJB container still exists in the latest database versions (as
far as I know), Oracle has -- for a long time, now -- been discouraging
its use in favour of OC4J.
More information on OC4J is available from:
http://technet.oracle.com/tech/java/oc4j/content.html
Good Luck,
Avi.

URGENT : ejb client in Oracle 8

We developed a EJB client. This client should be called from an Oracle Database 8.1 (ejb compliant). But, each time we tried to load weblogic.jar, we have several errors into Oracle (ie : ORA-29534 NamingContext could not be resolved)
Do you have an idea why ? Someone already developed an ejb client into Oracle 8.1 ?

They are reccomended because the next step going from your simple single EJB
to anything interesting, like adding more EJB's adding web-apps, adding
web-services etc etc involves ears. If the setup and overhead for an EAR is
easy, then just start there.
But no if you just doing helloworld you of course dont have to ears.
cheers
mbg
"Christopher R. Gardner" <[email protected]> wrote in message
news:3fc0560e$[email protected]..
>
"Mark Griffith" <[email protected]> wrote:
You can still run ejbc from the command line its still there. And you
can
still run weblogic.Deployer. (I dont ever reccomend jaring up in dev,
it
just takes longer, do exploded its easier and faster).
But ear's are easy, see:So ears are recommended even if you're just doing EJBs (e.g., a simpleHello World)
and no web apps (none needed for the Hello World or a PC client)?
http://www.niffgurd.com/mark/work/blog/
Cheers
mbg
"Christopher R. Gardner" <[email protected]> wrote in message
news:3fbfd6c6$[email protected]..
My understanding is ejbc has been deprecated and replaced with appc.Moreover,
BEA is encourgaging developers to deploy ear files. All I want todo is
to use
ant to deploy a jar file with a single EJB in it. I'm not findingthe WL
documentation
very helpful. Hopefully, you'll have better luck than I.
"skmurali" <[email protected]> wrote:
Hi
In order deploy EJB application in Weblogic 8.1, is it necessary
to compile
the application in WebLogic.ejbc. I did not find such files in
WebLogic
8.1
In weblogic 7.0 versiion has such files.
The present procedure is as follows.
1. Create a jar file contains all class files.
2. Create a jar file contains class jar files, plus .xml files
3. Deploy into weblogic 8.1 server EJB Deployment utility.
==================
Please help me.
Murali

Java callouts from bpel - 11g

I had Oracle Soa Suite 10.1.3 with Toplink/WSIF. I used to generate classes using bpel/schemac and place them in systems/classes directory.
But we migrated to Oracle Soa suite 11g. In 11g we don't see bpel folder. Are there any examples to handle the above in 11g?
Questions are:
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Hello globo,
if you have a synchronous process you simple use
NormalizedMessage nmRet = deliveryService.request(processName, processMethod, normalizedMessage);
nmRet.getPayload();
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For callbacks and values from an asynchronous process have a look at clemens' blog:
http://clemensblog.blogspot.com/2006/04/bpel-implementing-async-callback-with.html
Greets Jens

EJB Callout from Oracle 9i (9.2.0.5.0 database)

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