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@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

_______________________________________________
rules-dev mailing list
rules-dev@lists.jboss.org
https://lists.jboss.org/mailman/listinfo/rules-dev