bugGNU Octave - Bugs: bug #47679, native java object creation and...


bug #47679: native java object creation and static method calls

Submitted by:  Ivo <icouckuy>
Submitted on:  Tue 12 Apr 2016 04:47:22 PM UTC  
Category:  Interpreter Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Matlab Compatibility
Status:  Duplicate Assigned to:  None
Originator Name:  Open/Closed:  Closed
Release:  dev Operating System:  Any

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Tue 12 Apr 2016 05:53:51 PM UTC, comment #1:

See here:

Octave's Java implementations isn't complete yet. Volunteers needed.

OS -> Any
Release -> dev

Philip Nienhuis <philipnienhuis>
Project Member
Tue 12 Apr 2016 04:47:22 PM UTC, original submission:

In Matlab you can directly use java calls in the code to construct java objects, get and set fields and call static methods:
% static method call
logger = java.util.logging.Logger.getLogger('myLogger');
% object CTor
obj = java.lang.String('hello');

In octave I have to go through javaMethod, javaObject and java_set/get. This wouldn't be a problem except Matlab doesn't have these and thus I need to add a lot of if/else clauses to our code.

How hard would it be to enable support for this ? I realize this would create some disambiguation as the interpreter would need to try and execute the statement as either a 'Matlab' or 'java' call before it knows the class actually exists in either environment (VM).

As a sidenote, Matlab supports the import statement too:
import java.lang.*;
obj = String('hello');

Ivo <icouckuy>


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    Follow 6 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2016-05-16 mtmiller StatusConfirmed => Duplicate
        Open/ClosedOpen => Closed
        Dependencies- => Depends on task #12601
    2016-04-12 philipnienhuis StatusNone => Confirmed
        Release4.0.1 => dev
        Operating SystemGNU/Linux => Any

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