How to call java class in jstl core

Hi,
Can any one guide me how to call a java method using jstl core library

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How to call java class from pl/sql procedure ?

Hello everyone,
My query is..
There is one pl/sql stored procedure which is doing some business logic and storing data in some columns of one table, suppose the table name is 'ABC' .. and the rest of columns of table ABC are getting updated using java class. Now my problem is whenever I insert data in ABC using store proc.. i have to call that java class so that it will update the rest columns ( why java class for updating the columns in ABC is ..because that logic cant be done from pl/sql proc.. it has to be done using java )
and the other thing is.. oracle is in one machine and java is in another .. :(
hope ..u can help me out !!
Thank in advance !!

but that updation have to be done from java code only.. we are using GIS tools .. have to create some shape files and update the column with that shape file.. so creation of shape file has to be done from java code only..
so how to call java class file which is on another machine and oracle in another..

How to call java class file from jsp

hi
we need to call java classes (which are written separately in .java file )from jsp file. we need it for our project if anyone knows about please reply us.
bye
siva sankari

you can call the methods in a lot of ways. you could use scriptlets with the
<%@ page import="package.class"%> and then inside instantiate an object
<%
MyClass mc = new MyClass(parameters if any);
mc.theMethodYouWantToCall();
%>or as Madathil has stated,
or use the JSP tags
<jsp:useBean id="anyname" class="classname"/>and then use the getProperty tag
or even Custom Tags

How to call java classes from javascript?

i have a button which calls javascript i need to access a class to update the values in the database.. how do you call the java code from within the javascript?
the class is stored under tomcats classes directory and is accessed:
com.Database.Employee
the method is called : UpdateEmployeeDetails
the button
<input type="button" value="Save" onclick="submitForm('save')" />the javascript
<script language="javascript">
        function submitForm(process){
            document.myForm.action="update.jsp";
            document.myForm.submit();
</script>

is it not possible?
do i have to refresh the page and read in the values like...
<%
String ename = request.getParameter( "EmployeeName");
     session.setAttribute( "ename", ename);
%>and then call the class from here?
looking around ive come across ajax but i dont know how to use it and what you need to install and if its compatable with tomcat and jsp?
is ajax better or not really worth it?
i have anything up to 100 fields that need saving at one save click

How to call Java class from Forms 6i?

Hi friends,
I need to call a Java class from my Forms 6i application.
(It runs under WIndows XP. It's a client/server application and I have only the client and the Form builder installed on my PC)
I don't know almost anything about Java's world so your help would be very useful for me.
Could you tell me exactly what i have to do?
I've read in metalink several Notes, but they supposed that the Java architecture is already installed in the computer.... I only have the default installation of Developer 6i... so I would need to know:
- How to install/configure the neccesary to execute Java classes without problem
- How to invoke the .class from Forms 6i.
Thanks a lot
Jose.

And also this one:
Problem Description
Installed Forms 6i Rel 2 on a MS Windows machine. When trying to Import the Java
Classes getting the errors
PDE-UJI0001 Failed to create the JVM
Solution Description
You need to to install JDK 1.2.2 to run the Java Importer. And set the PATH's
and classpath's correctly.
Explanation
1. Download and install the JDK 1.2.2.
Possibly available at: http://java.sun.com/products/archive/
2. Assuming the JDK 1.2.2 is installed in c:\jdk1.2.2 directory and the JRE in
C:\PROGRA~1\JAVASOFT\JRE\1.2 directory; ORACLE_HOME=C:\Dev6iR2.
Set the PATH to
set PATH=c:\jdk1.2.2\bin;C:\PROGRA~1\JAVASOFT\JRE\1.2\bin;C:\PROGRA~1\JAVASOFT\JRE\1.2\bin\classic;%PATH%
( If you are using ias9i then the JDK 1.2.2 comes with the ias installtion ,
in this case please set the PATH to
D:\ias9i\Apache\jdk\bin;D:\ias9i\Apache\jdk\jre\bin;D:\ias9i\Apache\jdk\jre\bin\classic;%PATH% )
3. Set the CLASSPATH to set CLASSPATH=%CLASSPATH%;C:\Dev6iR2\TOOLS\COMMON60\JAVA\IMPORTER.JAR;.
(If you do not set the CLASSPATH correctly you will get the error
PDE-UJI002 Unable to find the required java importer classes)
4. Now run the Forms Builder by using the command.
C:\Dev6iR2\bin\ifbld60.exe
Now the Java Importer Should Run fine.
Francois

How to call java classed in forms 10g

Hi
I am using forms 10g
There is a java class email_class (to send emails and attachments). this java class (email_class) has further used two moere .jar files (activation.jar & mail.jar).
Now I want to use this java class (email_class) in my form to send email and attachment.
Could you please help me how can I do that?
regards

The jar file must be included in CLASSPATH which is set in the Forms default.env (or your own custom env if you created one). If you have not jar'd the class files, then the path to the class files should be included in CLASSPATH. Here is a simple example. Your CLASSPATH will contain many more entries.
CLASSPATH=D:\oracle10g\iDS1012\j2ee\OC4J_BI_Forms\applications\formsapp\formsweb\WEB-INF\lib\frmsrv.jar;D:\oracle10g\iDS1012\jlib\share.jar;D:\oracle10g\iDS1012\jlib\utj.jar;D:\oracle10g\iDS1012\jlib\zrclient.jar;D:\oracle10g\iDS1012\forms\java\frmall.jar;D:\oracle10g\iDS1012\jlib\importer.jar;D:\oracle10g\iDS1012\forms\javaNotice that jar files are included in the path and the last entry is just a directory. In this case, if there are any class files which are not in a jar, they could be stored individually in the \java directory.
Verify that you have at least the following included in your CLASSPATH:
frmsrv.jar
importer.jar
share.jar
utj.jar
zrclient.jar
Do not remove other entries which may exist as they are needed, but ensure that the list includes the above.

How to use java class in pl/sql

Hai Guys,
here is my java class:
import java.io.*;
public class ListFiles
public static void main (String[] args)
File file=new File("C:\\");
File[] files=file.listFiles();
for(int fileInList=0; fileInList<files.length; fileInList++ )
System.out.println(files[fileInList].toString() );
i want to use this class in pl/sql, i am new about this topic my concern are following
how to load java class
how to use in pl/sql
Guys i'll be great-full to you if you could help me out or share link or document .

First Read https://forums.oracle.com/forums/ann.jspa?annID=432
Check this link...
1. http://www.devshed.com/c/a/Oracle/Extending-PLSQL-with-Java-Libraries-concluded/
2. calling java from pl/sql in oracle 10g?its very urgent.
3. http://qamarsyed.blogspot.com/2010/07/calling-java-from-plsql-inside-oracle.html
4. http://home.c2i.net/toreingolf/oracle/java_and_plsql.htm
Hope this helps...
If someone response is helpful or correct, please mark it accordingly.

Calling java class from jsp page

Dear Friends.
I wrote jsp page and java class.
Am calling java class from jsp page. after processing result,
I have to refresh jsp page from java class.
processing time may take 5 minutes or 1 minute etc. that depends on user.
Can It be possible ? if possible , How ?

Ok, I get a very strange error now:
org.apache.jasper.JasperException: Unable to compile class for JSPerror: An error has occurred in the compiler; please file a bug report (http://java.sun.com/cgi-bin/bugreport.cgi).
What is this??? Anyone?

How to call Java Objects from ESB?

I don't know whether its possible but if there is a way please let me know I'd really appreciate.
I'm sending message to the JMS queue and I've created JMS adapter that I expect to be triggered when message gets into the queue. The message is an xml file that I read and look up some values that are Java classes and methods that I want to call. So how do I configure ESB to call Java Classes. I tried to look at the routing rules.
Regards

You could create the wsdl yourself and instead of the soap:binding use the java:binding
not sure if this works...just a guess.

How to call Java API from BSP?

I have a requirement to call Java API from BSP application.
I have checked the forum and found that it is possible by using some ABAP codes.
However there is no pointer on how this is done.
Can someone explain the details on how to call Java API from BSP is done?
I found class CL_EJB_JAVA_OBJECT_METHODS to call a method in EJB but can't find function or SAP class to call Java API.
Actually is there any BSP extention which can used to call Java API?
Thanks,
Hendri

check out these weblogs, it should give you an idea how to go about it.
/people/ignacio.hernndez/blog/2006/12/04/speech-synthesis-listen-the-application-server-is-talking-to-you
/people/puru.govind/blog/2006/12/20/let-abap-speak
Regards
Raja

How to call java program by HTML page

Hi guys,
I'm new java programer and want to build an HTML page to access to ORACLE database on NT server by JDBC, Can anyone give me a sample?
I already know how to access database by JDBC, but I don't know how to call java program by HTML page.
If you have small sample,pls send to me. [email protected], thanks in advance
Jian

This code goes with the tutorial from this web page
http://java.sun.com/docs/books/tutorial/jdbc/basics/applet.html
good luck.
* This is a demonstration JDBC applet.
* It displays some simple standard output from the Coffee database.
import java.applet.Applet;
import java.awt.Graphics;
import java.util.Vector;
import java.sql.*;
public class OutputApplet extends Applet implements Runnable {
private Thread worker;
private Vector queryResults;
private String message = "Initializing";
public synchronized void start() {
     // Every time "start" is called we create a worker thread to
     // re-evaluate the database query.
     if (worker == null) {
     message = "Connecting to database";
worker = new Thread(this);
     worker.start();
* The "run" method is called from the worker thread. Notice that
* because this method is doing potentially slow databases accesses
* we avoid making it a synchronized method.
public void run() {
     String url = "jdbc:mySubprotocol:myDataSource";
     String query = "select COF_NAME, PRICE from COFFEES";
     try {
     Class.forName("myDriver.ClassName");
     } catch(Exception ex) {
     setError("Can't find Database driver class: " + ex);
     return;
     try {
     Vector results = new Vector();
     Connection con = DriverManager.getConnection(url,
                              "myLogin", "myPassword");
     Statement stmt = con.createStatement();
     ResultSet rs = stmt.executeQuery(query);
     while (rs.next()) {
          String s = rs.getString("COF_NAME");
          float f = rs.getFloat("PRICE");
          String text = s + " " + f;
          results.addElement(text);
     stmt.close();
     con.close();
     setResults(results);
     } catch(SQLException ex) {
     setError("SQLException: " + ex);
* The "paint" method is called by AWT when it wants us to
* display our current state on the screen.
public synchronized void paint(Graphics g) {
     // If there are no results available, display the current message.
     if (queryResults == null) {
     g.drawString(message, 5, 50);
     return;
     // Display the results.
     g.drawString("Prices of coffee per pound: ", 5, 10);
     int y = 30;
     java.util.Enumeration enum = queryResults.elements();
     while (enum.hasMoreElements()) {
     String text = (String)enum.nextElement();
     g.drawString(text, 5, y);
     y = y + 15;
* This private method is used to record an error message for
* later display.
private synchronized void setError(String mess) {
     queryResults = null;
     message = mess;
     worker = null;
     // And ask AWT to repaint this applet.
     repaint();
* This private method is used to record the results of a query, for
* later display.
private synchronized void setResults(Vector results) {
     queryResults = results;
     worker = null;
     // And ask AWT to repaint this applet.
     repaint();

Call Java Class and Methods from ABAP

Hi
I install de JCo, But how i can call java class and methods from ABAP?. somebody has an example?
The tutorial say that's is possible, but don't explain how do that?
Thanks.
Angel G. Hurtado

If you need only simple java program, you do not need to install JCo. The following codes can call java class.
DATA: COMMAND TYPE STRING VALUE 'C:\j2sdk1.4.2_08\bin\java',
      DIR TYPE STRING VALUE D:\eclipse\workspace',
      PARAMETER TYPE STRING VALUE 'Helloworld'. "here the name of your java program
CALL METHOD CL_GUI_FRONTEND_SERVICES=>EXECUTE
   EXPORTING
     APPLICATION = COMMAND
     PARAMETER = PARAMETER
     DEFAULT_DIRECTORY = DIR
   MAXIMIZED =
     MINIMIZED = 'X'     "If you need the DOS window to be minimized
EXCEPTIONS
    CNTL_ERROR = 1
    ERROR_NO_GUI = 2
    BAD_PARAMETER = 3
    FILE_NOT_FOUND = 4
    PATH_NOT_FOUND = 5
    FILE_EXTENSION_UNKNOWN = 6
    ERROR_EXECUTE_FAILED = 7
    OTHERS = 8.
Tell me if it works.
Nuno.

How to call a class that extends a frame from a panel ?

How to call a class that extends a frame from a panel ?
I am trying to create an application say "Videoshow"
Videoshow has a panel which in turn consists of 2 components : 1]a textarea( to show the contents of a page) and 2] a mediaclip(to show the video).
Now I have an application "MediaApplication"(to show the videoclip) which extends Frame (Code from Java 2 Unleashed, Chap 21). I want to show this MediaApplication in Component 2 of the above panel. But when I do this, I only see the MediaApplication frame instead of the whole SlideShow.
I want to do something likethis.
VideoShow :
|---------------------------------|-------------------|
| |
| (Comp 1) | (Comp 2)
| TEXTAREA | Video Clip
| |(MediaApp entends Frame)
|---------------------------------|-------------------|
What is the best way to achieve this ? Also which component can I use to show the videoclip ?

im not familiar with the code you mention from Java 2 Unleashed, but your best bet is to read up on Swing a bit - so you get an idea of how Swing containers and components work - then im sure you'll find a solution to your problems. Then if you encounter any difficulties whilst your attempting to do that, post your code in the Swing forum and im sure someone will help you.

How to call java method having array as argument from c++ ?

Hello sir,
how to call java method having array as arguments from c++;
here is java code which is called from c++
class PQR {
     public void xyz(int[] ia) {
     System.out.println("hi");
          for (int i = 0; i < ia.length; i++)
               System.out.println(ia);
suppose all jvm invocation is done...

For someone well versed in java, C++ and JNI although tedious that should be obvious.
For someone not well versed in all three it is going to be very difficult.
Even for someone that does have knowledge in all of those areas coming up with a C++ interface that reflects that functionality in a dynamic way such that anyone is will to use it is going to be quite an adventure.
At any rate to start building it you do exactly the same thing that you would in java.
1. Extract everything in the jar via the zip package
2. For each found instance extract all of the methods, return types, parameters, etc and build a description tree for each class.
Doing all of that in C++ is going to take a LOT of code. If someone wanted an estimate from me it would take me 6 months to do it. And before I would even attempt it I would get them to explain to me in detail exactly how they thought they were going to use it when I was done because I can't see any reasonable way to do that.
I left out the description tree itself. I suppose you could duplicate the entire reflection api in C++.
Now perhaps if it was much, much more constrained, like to only those classes that implement a single interface then that would be more reasonable.

B1if Call Java Class

I am attempting to call a java class using the Call Java Class atom.
Java Class Name: full name of the java class to be called (boldjar must be available in the B1i base pathbold)
Where is the B1i base path?
I have created a simple java class the implements Callable that simply returns 1.
The exception I get com.sap.b1i.xcellerator.XcelleratorException: XCE001 Nested exception: com.sap.b1i.bizprocessor.BizProcException: BPE027 Could not get an instance for 'Callable'-class
I have pasted the jar file in just about every path I can think of and still get this exception.
Does anyone have a simple example of what the class should look like? The callable interface only has a single function named call which does not take parameters. How do we create a class that accepts parameters?

Well I found this under Control Center -> Development -> BPC Reference
User defined Java-Classes for the Call-Atom via the 'Callable' interface
com.sap.b1i.bizprocessor.Callable
This interface must be implemented by classes intended to be called by the B1iBizProcessor via the Call-Atom. Instances of these classes are subject of internal pooling if they do not indicate after a usage that they should be destroyed. In order to be able to create them internally in a generic way, they have to implement a parameterless initializer !!!
I just searched the entire BizStore for com.sap.b1i.bizprocessor.Callable but was unable to find it.
I also searched Google for com.sap.b1i.bizprocessor.Callable and it only come up with my posts.
I also searched the SAP Partner Portal, and SAP SDN with no avail.
Is this functionality only for internal SAP use?

How to call java class in jstl core

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