Library To Call Java From Perl

What is usual library to call java from Perl?

Answer:

Inline-Java is the usual library to call java from Perl, and this propose a org.perl.java module which should allow calling Perl from Java.

However, because of the unpredictability of the JNI implementations for different JVMs it is difficult to say what combinations of JVM and Perl will work. Typically, what is required is Perl with MULTIPLICITY, and threads compiled in. That means he uses a custom built Perl.

Otherwise, Inline::Java::Callback allows you to call Perl functions from Java. To do this you need to create an org.perl.inline.java.InlinePerlCaller object. 

Here is a example of a typical use:

use Inline Java => <<END ; 

import java.util.* ; 

import org.perl.inline.java.* ; 
 

class Pod_regexp extends InlineJavaPerlCaller { 

    public Pod_regexp() throws InlineJavaException { 

    } 

 
    public boolean match(String target, String pattern) 

        throws InlineJavaException { 

        try { 

            String m = (String)CallPerlSub("main::regexp", 

            new Object [] {target, pattern}) ; 

 
            if (m.equals("1")){ 

            return true ; 

        } 

    } 

    catch (InlineJavaPerlException pe){ 

        // $@ is in pe.GetObject() 

    } 
 

    return false ; 

    } 

END 
 

my $re = new Pod_regexp() ; 

my $match = $re->match("Inline::Java", "^Inline") ; 

print($match . "n") ; # prints 1 
 

sub regexp { 

    my $target = shift ; 

    my $pattern = shift ; 
 

    return ($target =~ /$pattern/) ; 

Java Tips

See also
Creating New, Extending class and Implementing interface

Do you have a Java Problem?
Ask It in The Java Forum

Java Books
Java Certification, Programming, JavaBean and Object Oriented Reference Books

Return to : Java Programming Hints and Tips

All the site contents are Copyright © www.erpgreat.com and the content authors. All rights reserved.
All product names are trademarks of their respective companies.
The site www.erpgreat.com is not affiliated with or endorsed by any company listed at this site.
Every effort is made to ensure the content integrity.  Information used on this site is at your own risk.
 The content on this site may not be reproduced or redistributed without the express written permission of
www.erpgreat.com or the content authors.