Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.lang.java.programmer > #11796

Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia

From Lew <lewbloch@gmail.com>
Newsgroups comp.lang.java.programmer
Subject Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia
Date 2012-02-06 17:13 -0800
Organization http://groups.google.com
Message-ID <9766239.3.1328577231113.JavaMail.geo-discussion-forums@pbcov1> (permalink)
References (4 earlier) <0e8b5554-d19e-4a0b-9840-409d893b6ac7@1g2000yqv.googlegroups.com> <8457013.1958.1328471129375.JavaMail.geo-discussion-forums@prmu37> <25138740-03d5-4668-a243-6994eb43dbd5@1g2000yqv.googlegroups.com> <7144029.385.1328521805784.JavaMail.geo-discussion-forums@prfs3> <a8d0ca47-4744-44d3-9f76-71ad2d53f484@y10g2000vbn.googlegroups.com>

Show all headers | View raw


Paka Small wrote:
> Example code proving beyond any doubt that a method is an instance of
> the class java.lang.reflect.Method in Java:

No, it doesn't. Again, the Java Language Specification defines methods and 
objects, and they are not the same thing. I have pointed you to it.

>   public final void setValue(BaseObject baseObject, Object value) {
>     java.lang.reflect.Method setMethod = null;

'setMethod' is a variable, not a method.

>     try {
>       setMethod =
> baseObjectClass.getJavaClass().getMethod(this.getSetMethodName(), new
> Class[]{this.type});
>       } catch (NoSuchMethodException ex) {
>  
> Logger.getLogger(BaseObjectAttribute.class.getName()).log(Level.SEVERE,
> null, ex);
>       } catch (SecurityException ex) {
>  
> Logger.getLogger(BaseObjectAttribute.class.getName()).log(Level.SEVERE,
> null, ex);
>       }
>     try {
>       setMethod.invoke(baseObject, new Object[]{value});

'invoke()' is a method.

>     } catch (IllegalAccessException ex) {
>  
> Logger.getLogger(BaseObjectAttribute.class.getName()).log(Level.SEVERE,
> null, ex);
>     } catch (IllegalArgumentException ex) {
>  
> Logger.getLogger(BaseObjectAttribute.class.getName()).log(Level.SEVERE,
> null, ex);
>     } catch (InvocationTargetException ex) {
>  
> Logger.getLogger(BaseObjectAttribute.class.getName()).log(Level.SEVERE,
> null, ex);
>     }
>   }

How exactly do you imagine that this proves a method is a class instance? 

All your code proves is that there exists a class instance that can describe 
and invoke a particular method. There is nothing in your code that shows, let 
alone proves "beyond any doubt", that a method is an instance of a class. It 
couldn't, because a Java method is not an instance of a class.

-- 
Lew

Back to comp.lang.java.programmer | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-01-25 11:23 -0800
  Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Jeff Higgins <jeff@invalid.invalid> - 2012-01-25 15:07 -0500
  Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Paka Small <paka-en@tumia.org> - 2012-02-04 08:43 -0800
    Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-02-07 08:22 -0500
  Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Paka Small <paka-en@tumia.org> - 2012-02-04 08:48 -0800
    Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Lew <lewbloch@gmail.com> - 2012-02-04 23:08 -0800
      Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Paka Small <paka-en@tumia.org> - 2012-02-05 03:13 -0800
        Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Lew <lewbloch@gmail.com> - 2012-02-05 11:45 -0800
          Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Paka Small <paka-en@tumia.org> - 2012-02-05 14:44 -0800
            Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Lew <lewbloch@gmail.com> - 2012-02-06 01:50 -0800
              Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Paka Small <paka-en@tumia.org> - 2012-02-06 12:00 -0800
                Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Lew <lewbloch@gmail.com> - 2012-02-06 17:13 -0800
                Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Paka Small <paka-en@tumia.org> - 2012-02-06 22:20 -0800
                Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Mayeul <mayeul.marguet@free.fr> - 2012-02-07 14:03 +0100
                Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Lew <lewbloch@gmail.com> - 2012-02-07 10:54 -0800
                Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Paka Small <paka-en@tumia.org> - 2012-02-07 12:38 -0800
                Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Lew <lewbloch@gmail.com> - 2012-02-07 16:42 -0800
                Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Patricia Shanahan <pats@acm.org> - 2012-02-07 12:53 -0800
                Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-02-07 13:32 -0800
        Re: Instance java.lang.Object.getClass() of Class Java Method on OO Tumia Lew <lewbloch@gmail.com> - 2012-02-05 11:51 -0800

csiph-web