Re: [Tm4j-developers] Interface changes

[Kal A. <ka...@te...>]

At 09:38 25/10/2001 +0200, Gerd Mueller wrote:
> > 2) Added the VariantContainer interface. This is the interface for an
> > object which contains a list of child Variants. It is a subclass of
> > ScopedObject and a superclass of both Variant and BaseName. It provides 
> the
> > operations getVariants(), setVariants() and addVariant(). Also, Variant
> > will return a Variant Container from its getParent() method.
>
>Where is this interface used ? To model names of topics ?

Essentially, yes. The issue that this interface addresses is that Variants 
can be nested inside other Variants. This means that a Variant might be a 
child of either a BaseName or a Variant. So two things need to happen:

1) Both BaseName and Variant must have methods to add/remove/update the 
list of child Variants
2) The Variant.getParent() method might return either a Variant or a BaseName

Adding this interface encapsulates the common functionality of (1), and 
enables getParent() to return something slightly more type-safe than 
TopicMapObject.

Cheers,

Kal