Import java class that uses DbConnection

How to import java class that uses DbConnection? I don't want to write my own PluginDataSource.
It is possible to get Connection in imported java classes?

This is not possible. Even connection used by individual PDS are only limited to those individaul PDS only and are not shared across them.
Thanks
Rohit

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Deploying java class that uses oraclexmlsql.jar

Hi,
I'm trying to deploy a java class that I wrote. It simply gets some data out of my oracle database as xml using the oraclexmlsql package. It works fine when I compile it within JDeveloper.
When I try to deploy it JDeveloper gives out the following error:
Errors in xmlquerydb:
ORA-29521: refferenced name oracle/xml/sql/query/OracleXMLQuery could not be found
loadjava: 1 errors
I can't figure out why that happens. I have used other classes and deployed them as Java stored Procedure and they work fine.
Thanks for help
Andre

I tried to load the oraclexmlsql.jar into the shema where I put my class. The classes from this jar were loaded but can not be compiled( apart from 3 ). I also tried loading my class into sys but I still can't compile it or the oraclexmlsql.jar classes.
Is the xsu12.jar a collection of all the classes that are allready in Sys after the database install?
I have noticed that on expanding the oraclexmlsql.jar file has a strange format and two classes classes are in the directory from which I expanded the jar. These two classes do not get a synonym on loading into the db. Could that have anything to do with it?
Thanks for more help
Andre

Only to import JAVA CLASS and JAVA SOURCE from .DMP file using IMPDP

hi,
I have a schema X, In that schema some of the *"JAVA CLASS" and "JAVA SOURCE"* objects are missing ..
The procedures ,functions..etc objects were updated at X schema..
I have 1 dmp file of Y schema , containing the missing "JAVA CLASS" and "JAVA SOURCE" s.. Can I import the the same to the schema X using IMPDP
i tried using INCLUDE clause but it is not working
eg:
impdp john1/john1@me11g22 directory=datadump dumpfile=DEVF2WAR.DMP remap_schema=devf2war:john INCLUDE="JAVA CLASS","JAVA CLASS"but error..
ORA-39001: invalid argument value
ORA-39041: Filter "INCLUDE" either identifies all object types or no object types.regards,
jp

Double post: IMPDP to import JAVA CLASS and JAVA SOURCE from .DMP file
Already replied.
Regards
Gokhan

Error while importing java class into oracle forms 10g

Hi
I have generated a web service client using jdeveloper 10g. It consists of complex type methods. I am trying to import the class files using java importer in oracle form 10g. I am able import all of them successfully except one. That one is the main method. Please see the error and suggest me how to overcome this error.
Exception occurred: java.lang.NoClassDefFoundError: oracle/jdeveloper/webservices/runtime/WrappedDocLiteralStub
Thanks in advance

Do you see oracle/jdeveloper listed in "Import Java Classes" when you try to import?
If not, make sure you add C:\DevSuiteHome_1\jdev\lib\jdev.jar to FORMS_BUILDER_CLASSPATH in registry
Also excetion indicates: oracle/jdeveloper/webservices/runtime/WrappedDocLiteralStub
If you typing it - type: oracle.jdeveloper.webservices.runtime.WrappedDocLiteralStub

How to import java Classes in report Builder

Hi, I want to import classes from a jar file into Report Builder (10 g). I'm not able to find my JAR in -- Program --> Import Java Classes option.
I have set the classpath pointing to my JAR.

Hello,
To import the Java classes:
Add your jar in the REPORTS_CLASSPATH
Launch Reports Builder.
Note:
You must launch Reports Builder now so that the new REPORTS_CLASSPATH is used.
Choose Program > Import Java Classes to display the Import Java Classes dialog box.
Regards

How to import java Classes in report Builder 10g

How to import java Classes in report Builder 10g .....
Arshad

Hello,
To import the Java classes:
Add your jar in the REPORTS_CLASSPATH
Launch Reports Builder.
Note:
You must launch Reports Builder now so that the new REPORTS_CLASSPATH is used.
Choose Program > Import Java Classes to display the Import Java Classes dialog box.
Regards

"Import Java Classes"in Oracle6i Forms

Hello
I have two questions regarding importing java classes in Forms 6i
1- How we can add my own class to this list, so that I can import it directly in form 6i and use it?
2- When these classes are used in form development, are they fully imported to client side or only class wrapper is ported to forms. I m asking this question, cuz I want to develop my application with all bussiness logic(Java classes) in middle tier ie Form Server.
Can anyone guide me in this regard
Thanks in advance
Asif

OK answers to the questions are:
1) If your class is on the classpath it will be picked up by the Java importer but you have to restart Forms if you add the class to the path
2) THe java importer is for middle tier. In Forms, all ofthe application logic is on the middle tier and if you want it integrate this with Java the importer will create a PLSQL wrapper to call the Java - in pretty much the same way as ORA_FFI. (So NOT imported into the client)
There are some white papers on OTN.
Regards
Grant

PDE-UJ1001, while trying to import java classes.

Hi,
When I try to import java classes into forms using the java
importer, I get an error stating PDE-UJ1001-Failed to create
JVM. I tried installing a patch in Developer 2000(Path 4a). But
still it doesnt work. Could anybody guide me in this?
Thanks,
Karthick.

am getting similar error - my dba has suggested that oracle developer uses the jvm from ie4 but i'm sure that cant be true as i thought the jvm was built in.
could somebody out there clarify this or inform me whats missing..
error
from dev 6i forms builder (6.0.8.11.3) on 8i (8.1.7.2.0) when trying to select option 'import java classes' from program menu returns error 'PDE-UJ1001 Failed to create the JVM.'
regards and thanks in anticipation....
vin ferguson

Problem When Import Java Class -compilation error

Hi all
I made a java class that has methods to return Screen width and Height .
package tarek;
import java.awt.Dimension;
import java.awt.Toolkit;
public class Screen
Dimension dim ;
public Screen()
dim = Toolkit.getDefaultToolkit().getScreenSize();
public double getWidth()
double w = dim.getWidth();
return w;
public double getHeight()
double h=dim.getHeight();
return h;
I made the jar file " screen.jar" and make it ready to use in form builder
I opened form builder and make import java class (From program>import java class>choose the class anc click import)
The class now imported successfully and the PL/SQL package body is:
PACKAGE Screen /* tarek.Screen */ IS
-- DO NOT EDIT THIS FILE - it is machine generated!
-- Constructor for signature ()V
FUNCTION new RETURN ORA_JAVA.JOBJECT;
-- Method: getHeight ()D
FUNCTION getHeight(
obj ORA_JAVA.JOBJECT) RETURN NUMBER;
-- Method: getWidth ()D
FUNCTION getWidth(
obj ORA_JAVA.JOBJECT) RETURN NUMBER;
END;
Now I made a button on the form and i WRITE THIS CODE TO INVOKE THE CLASS on when_button_pressed
DECLARE
vScreen_Class ORA_JAVA.JOBJECT;
BEGIN
vScreen_Class := SCREEN.NEW;
END;
My problem is I have compilation error
error 306 AT LINE 5 , COLUMN 25
wrong number or types of argument in call to "NEW"
I do not know what is the reason of this compilation error?
Is it because the method in java return "double datatype" while in oracle return "number datatype"
Please help
Edited by: [email protected] on Dec 28, 2009 10:24 AM

Sarah, I ca not move my thread to JDeveloper because it is not java issue. The problem is with my PL/SQL code and the way I make Import Java class to forms Builder. The Java code is OK.
Andreas Thank you so much for replying. In fact I made a full compile "Ctrl+Alt+K". but still error
The following is the package Body
PACKAGE BODY Screen IS
-- DO NOT EDIT THIS FILE - it is machine generated!
args JNI.ARGLIST;
-- Constructor for signature ()V
FUNCTION new RETURN ORA_JAVA.JOBJECT IS
BEGIN
args := NULL;
RETURN (JNI.NEW_OBJECT('tarek/Screen', '()V', args));
END;
-- Method: getHeight ()D
FUNCTION getHeight(
obj ORA_JAVA.JOBJECT) RETURN NUMBER IS
BEGIN
args := NULL;
RETURN JNI.CALL_DOUBLE_METHOD(FALSE, obj, 'tarek/Screen', 'getHeight', '()D', args);
END;
-- Method: getWidth ()D
FUNCTION getWidth(
obj ORA_JAVA.JOBJECT) RETURN NUMBER IS
BEGIN
args := NULL;
RETURN JNI.CALL_DOUBLE_METHOD(FALSE, obj, 'tarek/Screen', 'getWidth', '()D', args);
END;
BEGIN
NULL;
END;
---------------------------------------------------------------------------------

Importing Java Classes for Bussiness Logic in Forms6i

I have created a Java Class with some bussiness logic in it and i m able to impotr it in Forms 6i BUT when it converts my java method into program unit it automatically changes the name of the method with some code ..like method name is "increment" it will make it as "increment_3137" and also one parameter of Ora_java.object type will be added ....WHY is THAT ???and how to work for hat ...even when i m executing the method with the parameter it gives some Exception that Non-Oracle Exception ...and my class individually runs perfectly fine ...CAN U HELP ME ASAP ...Please as its urgent
Thanx..

Once you have imported java class files on forms throgh java import class option..
it creates a pl/sql for the java class that you have imported.
names for the procedures are assigned by machine code, so dont worry about it..
for eg. if the name of a method in java class is Increment and after loading java class file the name of ur pl/sql is increment_1254.
when u call increment_1254 and pass parameter to the procedure ur class incerement will be called and desired operation will be performed.
ora_java.object is the objec that will be used to access the the class file.
as java is object oriented it requires a object to execute method of class.
so u have to initialize the object..
e.g. increment_1234 (ora_java.object,a,b) is ur procedure
to call this procedure do the following
declare
PASS ORA_JAVA.JOBJECT;
a,b integer;
begin
pass := <classname>.new; --new will be created if ur class is public or u got public constructor in ur class.
increment_1234 (pass,a,b) ; -- increment_1234 (ora_java.object,a,b) ;
end;

Weird behaviour on imported java classes - what am i doing wrong?

Hello.
I am working on a java application in Jdeveloper 11g. I thought i'd re-use a few java classes that i had from an earlier project. I went File->import->Java source and pointed out the .java files. They popped into my Jdeveloper project perfectly like i expected. I opened up one of them and spent some time making changes to it. I then opened a second one and changed it too. Upon returning to the first one, i noticed that all my changes were gone and the original version was back. I also notied that by clicking on the history tab, i could see a list of revisions - i guess one for every time i saved the file. What i fail to understand is why the latest revision says "Load External State" and is back to square one.
Am i using this in the wrong way?
M@s

Hi,
I tried the same but this doesn't happen to me. Which version of JDeveloper do you use ?
Frank

ORA-105100 Import Java Class (Not a class path error)

i have a problem while using java imported class
java class
import java.io.*;
import java.lang.*;
import java.util.*;
public class externalCall{
public static String Run(String One, String Two){
String commandOutput = null;
commandOutput = concat(One,Two);
return commandOutput;
public static String concat(String One, String Two){
return One+Two;
the problem is that when using externalCall.run from oracle forms it is generating
error ORA-105100 err.
This is not a class path error as we are able to access concat function of java
class using Import Java Class.
Any Clues?...
Best Regards
Ashish

ORA-105101 when using Java Importer

Than how can i get java class by using it's class file?

Hi
After compilation of a java program, it creates a class file.
After getting class file suppose class file has been deleted.
Than how can i get java class by using it's class file?
Thanks in advance.

get a decompiler and run your class file through it--I'll assume you want the source code back and that you are not trying to recover a missing class file by attempting to use the class file that is missing--if it's missing, then I've not a clue on how to get it back by using what is already missing.
BTW: many of your compilers have source control--if it does, just restore your missing file.

How to run the imported java class in form

Help!!!!!
Pls help me to run the imported java class in forms.
Package is created in forms while imported one class called
singlexml.class and that package has one procedure and one
function.
I just wanted to run that class.I mean the new package.
Thanks
Anil

Hi,
It is because the converter works on byte code and it only supports a subset of the Java language (see the JC specifications). It is kind of like compiling you code on Java 6 and trying to run it on Java 5. The JCDK outlines the required compiler version.
Cheers,
Shane

Importing Java class problem!

Hello
I have problem by Importing java class into form. When I select in Forms Builder from menu: Programs/Import Java Classes it returns error: PDE-UJI001 JVM not able to create!
Can someone know what I must do to fix that problem?
Thanks, Chrity

It is a shame because it, probably, contains no special 1.5 new instruction at all.
Maybe it would be possible to try replacing the current JDK/JRE of your <ORACLE_HOME>/jdk installation after a safe backup of course.
You probably have a very little chance that it works, and it also won't be supported.
Francois

Import java class that uses DbConnection

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