XSD design of an xml element of dynamic sub-structure
Question
I guess the word dynamic is misleading. The element of my interest could have three possible substructures. An example could be:
<body>
<date></date>
<addr></addr>
</body>
or
<body>
<loc></loc>
<time> </time>
<city> </city>
</body>
or
<body>
//a whole lot of different sub elements
</body>
I am stuck in design the XSD that can be used to validate the three structures above (the three structures are known and fixed). I am not sure if I have put this question properly. Please shed any light on the solution, or even on the feasibility of it.
2 answers
solution1
2 ACCPTED 2014-01-16 10:03:36
Something like this would work I think:
<xs:group name="group_one">
<xs:sequence>
<xs:element name="date"/>
<xs:element name="addr"/>
</xs:sequence>
</xs:group>
<xs:group name="group_two">
<xs:sequence>
<xs:element name="loc"/>
<xs:element name="time"/>
<xs:element name="city"/>
</xs:sequence>
</xs:group>
<xs:complexType name="body">
<xs:choice>
<xs:group ref="group_one" />
<xs:group ref="group_two"/>
</xs:choice>
</xs:complexType>
You can of course add more groups, and have more choices.
solution2
0 2014-01-16 10:09:52
You can define your <body> to contain arbitrary xml fragment using CDATA.
<xs:element name="body" type="xs:CDATA"/>
More info, please refer http://www.w3.org/TR/2000/CR-xmlschema-2-20001024/#CDATA
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