jsr338-experts@jpa-spec.java.net

[jsr338-experts] XSD (was Re: Re: JPA 2.1 specification draft)

From: Rainer Kwesi Schweigkoffer <kwesi_at_sap.com>
Date: Wed, 25 May 2011 10:24:20 +0200

Pinaki Poddar, am 24 May 2011 hast Du um 11:07 zum Thema "[jsr338-experts] Re: JPA 2.1 specification draft" geschrieben :

> [1] http://openjpa.apache.org/jest-representation.html

Hi Pinaki,

actually I am a bit confused by the example given on the web page. In
the example I would have expected a uri element to be present within
the instances element (due to minOccurs=1) and the element singular to
be replaced by many-to-one at its first and by one-one at its second
appearance. Also, in the definition of singular-attr-type, to me, there
seems something like <xsd:element name="instance" type="instance-type">
to be missing within the choice. Or was the first singular meant to be
an embedded instead ?

More generally speaking, I am wondering whether you start redoing SDO
here to some extent. (One begins thinking of serialising the metamodel
of a persistence unit to an xsd and its entities to an xml following
that xsd; if we extend the metamodel by OR mapping information...).

Best regards
Rainer

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