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How to call a java function from Oracle forms? [message #265148]

Wed, 05 September 2007 09:45

kelvinora
Messages: 16
Registered: September 2007
Location: India

Junior Member

Hi
I am new to Oracle Forms..
I am having Oracle 9.2.0.1.0 client in my PC and jdk version is 1.6

I had configured below tools in my PC. (windows 2000)
I am having Oracle 9.2 with Oracle Developer Suite 10g (10.1.2.0.2)
which contains Oracle JDeveloper 10g (10.1.2.1) also.

How to call a java function from Oracle forms?
Can you give me the code samples and how to integrate those thing?

Thanks

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Re: How to call a java function from Oracle forms? [message #265159 is a reply to message #265148]

Wed, 05 September 2007 10:08

Soumen Kamilya
Messages: 128
Registered: August 2007
Location: Kolkata

Senior Member

First go to the Program -> Import Java Classes. /forum/fa/3003/0/

It will shows you the classes to import dialog box.
See the next post.

Attachment: java.bmp
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Re: How to call a java function from Oracle forms? [message #265161 is a reply to message #265159]

Wed, 05 September 2007 10:09

Soumen Kamilya
Messages: 128
Registered: August 2007
Location: Kolkata

Senior Member

Now choose the class which you want to import.
It will imoprt the classes on Program Units section.
/forum/fa/3004/0/

Cheers
Soumen

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Re: How to call a java function from Oracle forms? [message #265172 is a reply to message #265161]

Wed, 05 September 2007 10:40

kelvinora
Messages: 16
Registered: September 2007
Location: India

Junior Member

Hi Thanks for your screen shots..

After that what i can do?

How can i test it?

Thanks

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Re: How to call a java function from Oracle forms? [message #265190 is a reply to message #265161]

Wed, 05 September 2007 12:56

Littlefoot
Messages: 21823
Registered: June 2005
Location: Croatia, Europe

Senior Member
Account Moderator

@Soumen Kamilya:

As you chose not to accept private messages, here it is: I've seen that you have posted a few screenshots in the Forms forum. That's fine as long as you keep them small in size; therefore, use JPG or PNG instead of BMP which is HUGE and opens very slowly.

For other useful suggestions, please, read the OraFAQ Forum Guide.

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Re: How to call a java function from Oracle forms? [message #265351 is a reply to message #265148]

Thu, 06 September 2007 02:57

kelvinora
Messages: 16
Registered: September 2007
Location: India

Junior Member

Hi Thanks for ur sugesstions..

How can i proceed further ?

Thanks

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Re: How to call a java function from Oracle forms? [message #265436 is a reply to message #265351]

Thu, 06 September 2007 05:42

Soumen Kamilya
Messages: 128
Registered: August 2007
Location: Kolkata

Senior Member

Littlefoot Thanks for the information.
Actually I was out of my mind while posting this screen shorts and forgot to convert it to JPG. In Further posts I'll not post .bmp format (Promise) Razz

Now to the Topic:

kelvinora, You can now call the java functions from any forms trigger as it is converted to PL/SQL Packages.
Just call them in your trigger and it will work fine.

Cheers
Soumen

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Re: How to call a java function from Oracle forms? [message #265462 is a reply to message #265436]

Thu, 06 September 2007 06:46

kelvinora
Messages: 16
Registered: September 2007
Location: India

Junior Member

Hi thanks for your quick response
Can you give the Syntax for calling java functions in Oracle forms..

I had created one Module (FIRSTFRM) in forms,
there are many triggering events are there..
I choose key-f7..

----
The below is java code
package samples;

import java.sql.*;

public class DBTest {

public static String callDB(int id,String name){

String ss="Hai";
Connection con=null;

try{
Class.forName("oracle.jdbc.driver.OracleDriver");
con = DriverManager.getConnection("connection url","userid","pwd");
Statement st=con.createStatement();
System.out.println("Connected...");
con.setAutoCommit(true);

int r=st.executeUpdate("Insert into FORM_TEST VALUES('"+id+"','"+name+"')");

if(r==1){
ss="Inserted";
}
else{
ss="Insertion Filed";
}
}catch(final Exception e){
System.out.println(e);
}
return ss;
}

public static void main(String[] args) {

int empid=102;
String empname="welocme";

String resultStr=callDB(empid,empname);
System.out.println(resultStr);

}

}

---
You had mentioned that call java functions from Trigger..
So i had opened the PL/SQL Editor...
Is it correct?
If correct means how to code in that?
How can i call this callDB() from forms?

Pls help

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Re: How to call a java function from Oracle forms? [message #266427 is a reply to message #265462]

Mon, 10 September 2007 21:28

djmartin
Messages: 10181
Registered: March 2005
Location: Surges Bay TAS Australia

Senior Member
Account Moderator

Do you have to use Java? What's wrong with PL/SQL? Have you considered storing the Java in the database as a procedure and then just calling that procedure from your Form?

I suggest going to the Oracle Forms website and reviewing the contents of the Java page which is referenced on it. Then download the Java examples and work through a couple.

David

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Re: How to call a java function from Oracle forms? [message #388154 is a reply to message #265159]

Mon, 23 February 2009 09:05

waqasmadani
Messages: 1
Registered: August 2008
Location: Block 9, House 22-A, Stre...

Junior Member

I want to use Java bean using Oracle Forms 6i But I don't know that how to use. I use your given steps then this error raise.

"PDE-UJI001 Failed to create thr JVM."

What is it?

Attachment: error_snapshots.png
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Re: How to call a java function from Oracle forms? [message #388499 is a reply to message #388154]

Wed, 25 February 2009 00:55

djmartin
Messages: 10181
Registered: March 2005
Location: Surges Bay TAS Australia

Senior Member
Account Moderator

Google 'PDE-UJI001 Failed to create the JVM'. There are some goods threads. Remember to go to the BOTTOM of each thread to get the last response.

David

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Re: How to call a java function from Oracle forms? [message #438973 is a reply to message #388499]

Wed, 13 January 2010 05:28

krish_hipl
Messages: 1
Registered: January 2010
Location: India

Junior Member

Hello,
I am facing the similar Issue as I created New form using Import Java Classes... and trying to call java code through "WHEN-BUTTON-PRESSED" Created on form. Code written on Trigger as below.

declare
		obj ORA_JAVA.JOBJECT;
		class_path varchar2(4000);
begin
	obj := FedexAddressValidationMain.New;
	class_path:= FedexAddressValidationMain.getClassPath;
	fnd_message.set_string(class_path);
	fnd_message.show;
		exception
			when ORA_JAVA.JAVA_ERROR then
					message('Unable to call out to Java, ' ||ORA_JAVA.LAST_ERROR);
			when others then
		  	fnd_message.set_string('Exception : '||SQLERRM);
		  	fnd_message.Show;
end;

after deploying Form on application server, when the form is run from oracle application, i m getting following java exception-
"Unable to call out to Java".

I have followed the steps given above but still i m not able to fine the solution.Can anyone help me to explain the further steps that needs to be taken ahead.

Any help would be appriciated.

Thanks
Krishn..

[EDITED by DJM: applied [code] tags]

[Updated on: Wed, 13 January 2010 23:09] by Moderator

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