Re: Problem in defining a Java method for RPG/ILE

[Scott Klement <rpg400-l@xxxxxxxxxxxxxxxx>]

Hi Marvin,

As Barbara pointed out, the "not enough parameters" message is because 
you have forgotten the 'static' keyword.  Without 'static', it expects 
you to pass the object to operate on as the first parameter...   but 
static methods operate at the class level, not the object level, so add 
the 'static' keyword.

Sorry, I missed that on the first attempt.  This a problem with 
desk-checking...  you don't necessarily catch every single bug with a 
glance.


On 10/27/2010 1:03 PM, Marvin Radding wrote:
> Scott,
>
> When I included the InputStream parameter in the definition, the
> compiler tells me that there are fewer parameters than the definitions
> calls for. What is the assumed parameter that I need to pass it?
>
> My C specs are:
>
> c                   eval      logoimage = new_String('/mr0473/logo.jpg')
>
> c                   eval      InputStream =
> new_FileInputStream(logoimage)
> c                   eval      picarray = toByteArray(InputStream)
>
>
> Now I am getting more confused. If I define it without the InputStream,
> I can call it as I have before. If I define the InputStream as part of
> the definition, then I don't know what to use as the assumed parameter.
> This is suppose to create an object. What parameter is there that I need
> to pass it?
>
> Thanks,
>
> Marvin
>
> ------------------------------
>
> message: 2
> date: Tue, 26 Oct 2010 19:19:03 -0500
> from: Scott Klement<rpg400-l@xxxxxxxxxxxxxxxx>
> subject: Re: Problem in defining a Java method for RPG/ILE
>
> You appear to have forgotten the InputStream parameter.
>
>
> On 10/26/2010 6:12 PM, Marvin Radding wrote:
> > I am trying to put a picture into a Excel spreadsheet using the POI
> > classes.
> >
> > The method I am having problems with is toByteArray. This method is
> > defined:
> >
> > public static byte[] toByteArray(InputStream stream)
> >
> > I have defined it in RPG/ILE as
> >
> > D toByteArray...
> > D                 pr          4096a
> > D                                     extproc(*java
> > D                                     :'org.apache.poi.util.IOUtils'
> > D                                     :'toByteArray')
> >
> > When I execute the program, I get a
> >
> > Java exception received when calling Java method.
> >
> > Which expands to
> >
> > Message . . . . :   Java exception received when calling Java method.
> >
> > Cause . . . . . :   RPG procedure SETUP_ANP_ in program MR0473/AHM190R
> >
> >     received Java exception "java.lang.NoSuchMethodError: toByteArray"
> > when
> >     calling method "toByteArray" with signature "()[B" in class
> >
> >     "org.apache.poi.util.IOUtils".
> >
> >
> > I think this means that I have not defined the method properly in the
> > RPG/ILE but I am at a loss as to how to define it so the signature
> > matches. Does anyone have any idea what I need to do so it matches?
> >
> > HELP!
> >
> > Marvin