unique integer id as attribute

[Mario]

Hi,

I want to use a unique ID attribute, which should be an integer value.
I tried the solution below with xpath, but the xml seems to be valid,
even if there are two equal ids. Any idea why?


My XSD
---------------------------------------------------------------------
<xs:element name="sample">
<xs:complexType >
<xs:choice maxOccurs="unbo unded">
<xs:element name="one" maxOccurs="10">
<xs:complexType >
<xs:attribute name="anothertx t" type="xs:string "/>
<xs:attribute name="sequencei d" type="xs:intege r" use="required"/>
</xs:complexType>
</xs:element>
<xs:element name="two" maxOccurs="10">
<xs:complexType >
<xs:attribute name="sequencei d" type="xs:intege r" use="required"/>
</xs:complexType>
</xs:element>
<xs:element name="three" maxOccurs="10">
<xs:complexType >
<xs:attribute name="sequencei d" type="xs:intege r" use="required"/>
</xs:complexType>
</xs:element>
</xs:choice>
</xs:complexType>
<xs:key name="seqid">
<xs:selector xpath=".//sample"/>
<xs:field xpath="@sequenc eid"/>
</xs:key>
</xs:element>
---------------------------------------------------------------------

My XML
---------------------------------------------------------------------
<sample xmlns:xsi="http ://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespace SchemaLocation= "sample.xsd ">
<one sequenceid="1"/>
<one sequenceid="2"/>
<two sequenceid="3"/>
<two sequenceid="3"/>
</sample>
---------------------------------------------------------------------

[Martin Honnen]

Re: unique integer id as attribute



Mario wrote:

[color=blue]
> I want to use a unique ID attribute, which should be an integer value.
> I tried the solution below with xpath, but the xml seems to be valid,
> even if there are two equal ids. Any idea why?
>
>
> My XSD
> ---------------------------------------------------------------------
> <xs:element name="sample">[/color]
[color=blue]
> <xs:key name="seqid">
> <xs:selector xpath=".//sample"/>[/color]

Why the path to sample if the sequenceid attribute is on the other
elements, e.g. one or two?
[color=blue]
> <xs:field xpath="@sequenc eid"/>[/color]
[color=blue]
> My XML
> ---------------------------------------------------------------------
> <sample xmlns:xsi="http ://www.w3.org/2001/XMLSchema-instance"
> xsi:noNamespace SchemaLocation= "sample.xsd ">
> <one sequenceid="1"/>
> <one sequenceid="2"/>
> <two sequenceid="3"/>
> <two sequenceid="3"/>
> </sample>[/color]



--

Martin Honnen

http://JavaScript.FAQTs.com/

[Mario]

Re: unique integer id as attribute

I thought this might be the only possibility to get the sequence ID
unique for all element-attributes below <sample>... is this wrong?

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[Martin Honnen]

Re: unique integer id as attribute



Mario wrote:
[color=blue]
> I thought this might be the only possibility to get the sequence ID
> unique for all element-attributes below <sample>... is this wrong?[/color]

You should be able to use
<xs:selector xpath=".//*">
to match any descendant element, at least that is my current reading of
the XML schema specification. Try that.
It should also be possible to list alternatives e.g.
<xs:selector xpath="one | two | three">
--

Martin Honnen

http://JavaScript.FAQTs.com/

[Mario]

Re: unique integer id as attribute

Hey cool, that way it rocks. Thx a lot!!

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