Re: How to write or reconfigure values of variables in o:xml?

Hi Francisco,

you could perhaps try returning an object of a user-defined type from  
the o:XML program, then calling functions on that object from Java.
As I don't know the context it's a little bit difficult for me to  
offer more advice. Maybe you could try to explain  how your different  
Java and o:XML components fit together, and how they are called.

best regards,

/m


On 11 Mar 2007, at 14:59, Francisco wrote:

> Dear Martin,
>
> How have  you been recently? Since I got your kind help weeks ago,  
> I have been working on the project and it seems there is another  
> problem arise when I come into the setVariableValue() methods which  
> are defined into the o:xml.
>
> In the example you provided, the method "plus" just read the values  
> and sum them together, it is mainly a "read" process, however, we  
> also need "write" process in the project, which means, the defined  
> method setVariableValue() should be able to reconfigure the values  
> of the variables whenever needed. As we know,  Java could "read"  
> and "write" xml files via DOM tree, but I don't know how o:xml  
> achieve this goal and couldn't find an example of it from all the  
> currently available documents. I sincerely hope you can help me  
> out. I appreciate your help very much always.
>
> Looking forward to hearing from you.
>
> Kind regards,
> Francisco
>
>
>
>
>
> Martin Klang <[email protected]> wrote:
> Francisco,
>
> You need to match the function name and signature, in the same way as
> when you call Class.getMethod(String, Class[]) in Java.
>
> For example, if your function definition looks like this:
>
>
>
>
>
>
>
>
> ie you've defined the function 'plus(Number, Number)', then you can
> look up the function like this:
>
> Function func = program.getResolver().getFunction(new Name("plus"),
> new Type[]{NumberNode.TYPE, NumberNode.TYPE});
>
> I have put together a couple of working examples that you can
> download from here:
> http://mars.pingdynasty.com/CallObjectboxExamples.zip
>
> You need to have the latest objectbox.jar on your classpath to
> compile and run the Java program.
>
> best of luck, I look forward to hearing of your success!
>
> /m
>
>
> On 26 Feb 2007, at 16:16, Francisco wrote:
>
> > Dear Martin,
> >
> > Sorry to bother you again. I have the difficulty in following your
> > example to call the functions. The problem is mainly on this line
> > -----
> >
> > Function func = program.getResolver().getFunction
> > (functionName,signature);
> >
> > I always get "null" as return, I don't know how to solve it. I
> > checked the API but couldn't find more details on how to pass the
> > arguments or signatures for designated functions? I tried to put
> > signatures inside. But still not succeed. Could you please kindly
> > give a further explaination on this? Thank you very much for your
> > help.
> >
> > Looking forward to your email.
> >
> > Kind regards,
> > Francisco
> >
>
>
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