Groups > comp.lang.java.programmer > #18998

JNI return jobjectArray

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From	Philipp Kraus <philipp.kraus@flashpixx.de>
Newsgroups	comp.lang.java.programmer
Subject	JNI return jobjectArray
Date	Sun, 30 Sep 2012 22:23:48 +0200
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Hello,

I hope this question is not OT.

I create a JNI call for this Java method

class myclass {

    void native mymethod( Double[] x )
}

so the parameter x should be a call-by-reference, I would set x in the 
native JNI function:

void mymethod( JNIEnv *jenv, jclass jcls, jobjectArray& jarg )
{
   // do something
   jobjectArray t = .....

   jarg = t;
}

How can I set the jobjectArray& back, so the data is return in the parameter x?
IMHO I need jenv->NewGlobalRef, os this the correct use jarg = 
(jobjectArray)jenv->NewGlobalRef( (jobject*) &t ) ?

Thanks

Phil

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JNI return jobjectArray Philipp Kraus <philipp.kraus@flashpixx.de> - 2012-09-30 22:23 +0200
  Re: JNI return jobjectArray markspace <-@.> - 2012-09-30 14:56 -0700
    Re: JNI return jobjectArray Philipp Kraus <philipp.kraus@flashpixx.de> - 2012-10-01 00:23 +0200
      Re: JNI return jobjectArray markspace <-@.> - 2012-09-30 19:21 -0700
        Re: JNI return jobjectArray Lew <lewbloch@gmail.com> - 2012-09-30 21:14 -0700
          Re: JNI return jobjectArray markspace <-@.> - 2012-10-01 08:32 -0700
      Re: JNI return jobjectArray "Chris Uppal" <chris.uppal@metagnostic.REMOVE-THIS.org> - 2012-10-01 09:39 +0100
  Re: JNI return jobjectArray Roedy Green <see_website@mindprod.com.invalid> - 2012-10-01 10:21 -0700
  Re: JNI return jobjectArray Steven Simpson <ss@domain.invalid> - 2012-10-01 23:46 +0100

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