[rules-dev] Declared types - extension

[Wolfgang Laun]

Subsection 5.7.7 discusses 'extends' and describes how it is done for types
declared in Java.

One finesse is apparently not documented: Java types must be proper
JavaBeans; otherwise the construction of the accessors will fail. (Try, for
instance, a property with a getter but no matching setter.)

HTH
-W


On 10 July 2011 22:29, Michael Anstis <michael.anstis at gmail.com> wrote:

> What's the rules around declared types extending another (declared) type?
>
> I've been asked to provide for declared type extension in Guvnor (by
> Prakash) but the Expert user-guide doesn't say it exists at the engine
> level.
>
> I tried "declare MyType extends java.util.ArrayList" and received a
> parser\compiler error stating "java.util.ArrayList was not a declared type"
> (or words to that effect) so some form of extension appears possible.
>
> Thanks,
>
> Mike
>
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