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XMI 2.0 spec. questions [message #586834]

Fri, 07 May 2004 13:29

Eclipse User

Originally posted by: arno.leist.io-software.com

Hi all,

can someone explain the meaning of the <xsd:element ref='xmi:extension'
/> tag to me, which is included in every class content (see rule 4c in
the XMI 2.0 spec.), regardless whether the enclosing complex type is
derived or not?

Another point is, that I think the XMI 2.0 spec is not clear about how
attributes and compositions are inherited. On page 34 point 1.8.7 is
stated, that for attributes and compositions copy-down inheritance is
required. Contrarily is rule 4c on page 57, which states that only local
attributes, references, and compositions are included if the
org.omg.xmi.useSchemaExtensions is set to true.
What do you think about this?

Thanks,
Arno

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