Calling java class from ipl

HI,

I need to call one custom java class file from the ipl file.is it possible to do like that.
please through some light on it.

Thanks
Rathina

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Migrateduser

Do you know how to write a Java application (i.e., a class with a "main" method)? This should be covered within the first couple of chapters of any basic Java book.

You can invoke a Java application just as you can run any other program from Perl (ex., exec, system, backtick, etc.)

Brinko Kobrin
Interwoven Staff Engineer

megamala

When we execute the Java from perl , some times that command is not executing.
$cmd = qq(java -cp ....................);
Some times its not executing the command , just it througin an error (return code is either 256 or 3XXXX). Is there any way in unix like Win32: Smiley Tongue

rocess in windows.

MM Guptha

Migrateduser

You said that sometimes the command is not working. Does that mean that other times it does work? I would start by trying to find some pattern among the failures.

Make sure that "java" is in the PATH of the Perl process, or better yet specify the fully-qualified path.

You might find IPC: Smiley Surprised

pen3 to be useful.

Brinko Kobrin
Interwoven Staff Engineer

megamala

80% of the time it executes the that Java command , but some times its just skips that command and goes to the next step in the program . In our Java program we bunch of debug statments, it not returning any output . I thing this is happening when multiple users executing that perl program. (from work flow)

MM Guptha

nipper

>we [have a] bunch of debug statments

>I thing this is happening when multiple users executing that perl program

Is there an area where these java programs can collide ? two trying to wrtire to teh same file at the same time ? Can you run the java from Unix & do it several times from different shells, see if you can duplicate the environment.

Andy

herald10

I suggest you run that java program from a seperate perl program and see how its working ... after that we can think of your current settings....

megamala

That java program updates the Database. I tried running serveral times from different shells, i didn't get any error. It worked fine.

MM Guptha