Re: Changes in the JavaPlatform API

Svata Dedic wrote:

> Hi, Tomas,
>
> I happen to think slowly these days, there's a couple of things, which 
> I forgot about :-(
>
> Tomas Zezula wrote:
>
>> Proposal:     1.  Rename the JavaPlatform class to the 
>> GenericJavaPlatform class and
>> remove from it all the J2SE specific methods  (getSecificationVersion())
>
>
> Is the rename necessary if there will be a new specific J2SEPlatform 
> subtype ? 

No it is not necessary, it was designed only to point out that new 
JavaPlatform is
no more compatible with old implementation. But the names can stay the same.

>
>
>>     4. Rename the PlatformService into the GenericPlatformService 
>> without
>> any J2SE specific method.
>
>
> [the same question about rename]
>
>>        
>> The changes are shown on the attached UML diagram.
>
>
> Would it be possible to have EditionType with no tags defined, and the 
> tags would be defined on J2SEPlatform, J2MEPlatform and J2EEPlatform, 
> respectively ? Then adding an edition (not much probable, though) 
> would not require to change the base API (EditionType). 

Yes it is possible. The EditionType is not a final class, so it can be 
extended by any module by other edition types. So adding new edition will
not require changes of API, just a platform returns a subclass of 
EditionType.
The question is what to put into base EditionType, according to me it 
should have at least SE type.

>
>
> Another thought -- what all functions will the tag serve for ? Isn't 
> "aPlatform instanceof the_edition_specific_subtype" expression 
> sufficient to lurk for a specific platform edition ? 


I don't want to have a test of edition type using instanceof, for me it 
seems better to define an explicit method for that.

Tomas

>
>
> Thanks!
> -Svata
>
>
>
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