Can I call my own custom java class from JavaScript?

You can instantiate a "JavObject" from client-side JavaScript:
http://developer.netscape.com/docs/manuals/js/client/jsref/javobj.htm#1193137
What I don't know is, does JavaObject mean only the browser's JRE classes? Can I instantiate a class I wrote?

Also, does this even work in IE anymore? I'm trying it and it doesn't seem to work! Anyone know if this feature was removed? I have the latest Java plug-in.

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Calling Custom Java Class from WCC?

How do I call a custom Java class from WCC when a certain metadata field is set to 'On' and at the time of check-in?
Thank you,
Randy

Randy,
You would only use the Intradoc classes if running as a service, service handler, filter or class alias as a component within WebCenter Content. In this case, since it is running inside WebCenter Content, you do not need to bundle the Intradoc classes since they are already on the classpath.
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Jonathan
http://jonathanhult.com

Accessing java classes from javascript

Hi,
I have the following javascript function
function testjava {
    var myString = new java.lang.String("Hello world"); // line 1
    alert("len:"+myString.length()); // line 2
}It gives me a error at line 1 saying "'java' is undefined" in IE browser 5.5 sp2. But, both the lines execute correctly in netscape 6.
Can someone please help..
Thanks,
Vijay.

It seems that IE 5.5 doesn't support accessing java classes in JavaScript, so try to install IE 6 to see if it works or maybe, you doesn't have installed propertly support for JVM in IE.

Clearing custom java classes from cache

Hi,
I've written some java classes and am accessing them via the "cfobject" tag.
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found the answers here
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Hello there everyone! I really hope that someone can help me. I am writing a program that must be able to compile and run other java classes that are in different files, much like development environments like Kawa or Forte allow you to do.
There has to be a way of doing this ( I hope!! ), but i can't seem to find it!!
I have tried using this command to compile:
Runtime.getRuntime().exec ("c:\\programs\\javac className.java");
...and this one to run:
Runtime.getRuntime().exec ("c:\\programs\\java className");
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PLEASE, PLEASE, PLEASE help me - i've run out of ideas, and i need this to be working in 3 days!!!
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Adrian ( ...in distress!! )

public class JavaCompiler{
   public static void main(String[] args)throws Exception{ //sorry bout the laziness
      if(args == null || args.length != 1){
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         System.exit(0);
      String className = args[0];
      Runtime rt = Runtime.getRuntime();
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      p.waitFor();
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}This should get you going. You may consider looking into the System.getProperty() method in order to determine the type of OS it is running on in order to findo out what command to run. I know that the sun tool listed above is nice, but by my understanding the sun tools provided are not guaranteed to stay the same. I'm no expert on this matter, but that is one of the reasons there is no API documentation for those tools. Also, I don't believe those tools come packaged with the JRE. (Of course if you are making an IDE it will be expected that the user has an sdk installed. Good luck with figuring this thing out.

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");
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%>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?
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I can't call more than 1 Java method from C

Hi friends,
I my program written in C i call two Java methods, but the first method execute correct but the second display a error message:
Unexpected Signal : EXCEPTION_ACCESS_VIOLATION occurred at PC=0x6d475879
Function name=JVM_FindSignal
Library=d:\jdk1.3.1\jre\bin\hotspot\jvm.dll
I inverted the functions, but ever the second function makes a error.
This is my C program:
#include "jni.h"
#include <stdio.h>
#include <windows.h>
#include <stdlib.h>
#include <string.h>
char *getclasspath()
char ambiente[100000];
static char result[200000];
strcpy(ambiente,"-Djava.class.path=");
strcat(ambiente,getenv("CLASSPATH"));
int tam=strlen(ambiente),i,tamresult=0;
for(i=0;i<tam;i++)
if(ambiente!='\\')
result[tamresult++]=ambiente[i];
else
result[tamresult++]='\\';
result[tamresult++]='\\';
result[tamresult]=0;
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char **__stdcall getServerList(int sessionId)
     JavaVM *vm;
     JNIEnv *env;
     JavaVMInitArgs vm_args;
     JavaVMOption options[1];
     options[0].optionString = getclasspath();
     vm_args.version = JNI_VERSION_1_2;
     vm_args.options = options;
     vm_args.nOptions = 1;
     vm_args.ignoreUnrecognized = 1;
     jclass cls;
     jmethodID mid;
     char *retorno;
     int i=0;
     int k=0;
     int j=0;
     char aux[100][100];
     char *lista_server[20];
     char **lista_server_ret;
     /* Invoca a m�quina virtual Java */
     jint res = JNI_CreateJavaVM(&vm, (void **)&env, &vm_args);
     if (res < 0)
          printf("Can't create Java VM\n");
          exit(1);
     /* Procura pela classe */
     cls = (jclass) env->NewGlobalRef(env->FindClass("br.com.cpqd.sagre.security.argus.SagreWebWrapper"));
     if (cls == 0)
          printf("Can't found br.com.cpqd.sagre.security.argus.SagreWebWrapper class\n");
          exit(1);
     /* Procurando o metodo Java getListServerStr */
     if ((mid = env->GetStaticMethodID (cls,"getServerListStr","(I)Ljava/lang/String;")) == 0)
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     vm->DestroyJavaVM ();
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     for(i=0;i<len;i++)
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          aux[k][j]= retorno[i];
          j++;
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          aux[k][j]='\0';
          k++;
          j=0;
     for(i=0;i<k;i++)
          lista_server[i] = aux[i];
     lista_server_ret=(char**)lista_server;
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char __stdcall encrypt(char clearText)
static JavaVM *vm;
static JNIEnv *env;
JavaVMInitArgs vm_args;
JavaVMOption options[1];
options[0].optionString = getclasspath();
/*     "-Djava.class.path=.;.\\SagreUtil.jar";*/
vm_args.version = JNI_VERSION_1_2;
vm_args.options = options;
vm_args.nOptions = 1;
vm_args.ignoreUnrecognized = 1;
jclass cls;
jobject obj;
jmethodID mid;
char *retorno;
/* Invoca a m�quina virtual Java */
jint res = JNI_CreateJavaVM(&vm, (void **)&env, &vm_args);
if (res < 0)
printf("Can't create Java VM\n");
/* Procura pela classe */
cls = env->FindClass("br.com.cpqd.sagre.security.argus.SagreWebWrapper");
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printf("Can't find br.com.cpqd.sagre.security.argus.SagreWebWrapper class\n");
/* Procurando o metodo Java encrypt */
if ((mid = env->GetMethodID (cls,"encrypt","(Ljava/lang/String;)Ljava/lang/String;")) == 0)
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obj = env->NewObject(cls,mid,param);
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if(str_java!=0)
retorno = (char *) env->GetStringUTFChars(str_java, 0);
else
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I appreciate for any reply.
[ ]'s
Bruno

vikram ..
if u r using ms vc++ then there is an option in the directories tab to specify various include files.
if this doesn't work then u can use the command line compiler for vc++ , cl.exe. using cl u can give the -I option and specify the path of whatever file u want to add.
as for the specific file <jni.h> u can find it at :
driveletter:\jdk1.x\include
though i have never used this file as an include statement in .c files that i use for jni.
Dum Spiro Spero

Can we call Java class from LiveCycle Process?

hi..
I have a general query, is it possible to call customeized java class from Workbench Process?
I found dat we can invoke a web service... is there some operation like that for calling a java class...
Thanks and Regards,
Ambika

Yes.
You can use the Script service and put your Java code in there
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Calling Custom XSLT java class from BPEL in SOA Suite 11g

Hi All,
Morning...need some help with this issue...we are currently on SOA Suite 11g (11.1.1.4) version.
Earlier while we were on SOA Suite version 10g (10.1.3.3) we were calling the custom java classes from the xsl mapping for complex transformation and for this we were placing the .class file as .jar file at the location mentioned here $OC4J_HOME/j2ee/home/applib directory and then mentioning the namespace as http://www.oracle.com/XSL/Transform/java/{$classname$} in the XSLT mapping file.
Now in SOA Suite 11g if we need to retain similar functionality for external custom java calls could someone please help us where do we need to put the .jar file now ..
exactly at which directory location/path and on which instance/server (application server instance or middle tier instance ) we need to put this .jar file
Currently we are stuck and need some help with this.
With thanks & Regards

Hi Eric & Anuj,
Thanks for replying , sorry for checking on this now...
here at this path /opt101/app/oracle/SOAD/SOA11gR1/fmw/Oracle_SOA1/soa/modules/oracle.soa.ext_11.1.1
we got the ora.soa.ext.jar file and extracted it to get the MANIFEST.mf file ..have mentioned below.
Now if we need to link our custom .jar file named customfunctions.jar so we need to mention it as below is this correct :
Manifest-Version: 1.0
Ant-Version: Apache Ant 1.7.1
Created-By: 17.0-b17 (Sun Microsystems Inc.)
Implementation-Vendor: Oracle
Implementation-Title: Oracle SOA EXT
Implementation-Version: 11.1.1
Product-Name: Oracle SOA EXT
Product-Version: 11.1.1.4.0
Specification-Version: 11.1.1
Extension-Name: oracle.soa.ext
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Class-Path:customfunctions.jar classes/ -- is this the way to mention (means we need to add this additional line or we need to add to the existing line at Class-Path: classes/)
2.
Eric the Alternative method mentioned in your update :
Open a command prompt and change the current directory to the oracle.soa.ext_11.1.1 directory ,
then execute the build.xml file in the oracle.soa.ext_11.1.1 folder using Ant
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Is there an easy way to call a java class from an applet?

Does anyone know of an easy way to call a server based java class from an applet? Has anyone done it or came across it? If yes how/where?
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I'm not sure about the issue. Are you talking about "servelets"? "RMI"? Take a look at those issues.

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You can use the standard JMS Session API available to create a Queue or Topic identity object.
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Further, this only creates the Destination identity object and not the physical Destination object.
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11g iBots(Agents) calling custom java class?

We upgraded from 10g to 11g and we have iBots that call a custom java class in the form of a jar file.
This all worked fine in 10g.
I followed all configuration steps in the documentation, but we are unable to get our iBots(Agents) to work in 11g.
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Hi glova,
The document refers to the RPD and catalog migration....what ever customization used in 10g wont effect in 11g i suppose most of the things.
i would suggest you to copy the java class of ibots and do the copy paste or manually do it in 11g and see if it works ...this is the only alternative.
hope helps you.
Cheers,
KK

How can I call a java class from within my program?

I was wondering if there's a platform independent way to call a java class from my program.

Here's my scenario. I'm working on a platform independent, feature rich, object-oriented command prompt program. The way I'm designing it is that users can drop classes they write into my bin directory and gain access to the class through my program. For example, they drop a class named Network.class in the bin directory. They would type Network network at my command prompt and gain access to all the methods available in that class. They can then type system.echo network.ipaddress() at my prompt and get the system's ip address. I have it designed that there's a server running in the background and the clients connect to my port. Once connected the end-user can enter their user name and password and gain access to the system. When they type a command they actually call another java program which connects to my server using a seperate thread. They can then communicate back and forth. I have it set that everything has a process id and it's used to keep track of who called what program. Once the program is done it disconnects and closes. Rather than getting into the nitty gritty (I didn't want to get into heavy detail, I know how everything will work) I'm really interested in finding out how I can call a java program from my program. I don't want it to be part of the app in any way.

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Hi All,
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Radhika.

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Can I call my own custom java class from JavaScript?

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