Nivaldo,
Namespaces are very useful when working with schemas. However, I find
that this works: note that the root xs:schema element has no
targetNamespace attribute.
(: in Schemas :)
xdmp:document-insert(
'test.xsd',
<xs:schema
attributeFormDefault="unqualified"
elementFormDefault="unqualified"
xmlns:xs="http://www.w3.org/2001/XMLSchema";
xmlns="http://marklogic.com/tutorial";>
<xs:element name="name" type="xs:token"
abstract="false" nillable="false"/>
<xs:element name="qualification" type="xs:token"
abstract="false" nillable="false"/>
<xs:element name="born" type="xs:date"
abstract="false" nillable="false"/>
<xs:element name="dead" type="xs:date"
abstract="false" nillable="false"/>
<xs:element name="isbn" type="xs:unsignedLong"
abstract="false" nillable="false"/>
<xs:attribute name="id" type="xs:ID"/>
<xs:attribute name="available" type="xs:boolean"/>
<xs:attribute name="lang" type="xs:language"/>
<xs:element name="title" abstract="false" nillable="false">
<xs:complexType mixed="false">
<xs:simpleContent>
<xs:extension base="xs:token">
<xs:attribute ref="lang" use="optional"/>
</xs:extension>
</xs:simpleContent>
</xs:complexType>
</xs:element>
<xs:element name="library" abstract="false" nillable="false">
<xs:complexType mixed="false">
<xs:sequence minOccurs="1" maxOccurs="1">
<xs:element ref="book" maxOccurs="unbounded" minOccurs="1"/>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="author" abstract="false" nillable="false">
<xs:complexType mixed="false">
<xs:sequence minOccurs="1" maxOccurs="1">
<xs:element ref="name" minOccurs="1" maxOccurs="1"/>
<xs:element ref="born" minOccurs="1" maxOccurs="1"/>
<xs:element ref="dead" minOccurs="0" maxOccurs="1"/>
</xs:sequence>
<xs:attribute ref="id" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="book" abstract="false" nillable="false">
<xs:complexType mixed="false">
<xs:sequence minOccurs="1" maxOccurs="1">
<xs:element ref="isbn" minOccurs="1" maxOccurs="1"/>
<xs:element ref="title" minOccurs="1" maxOccurs="1"/>
<xs:element ref="author" minOccurs="0"
maxOccurs="unbounded"/>
<xs:element ref="character" minOccurs="0"
maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute ref="id" use="optional"/>
<xs:attribute ref="available" use="optional"/>
</xs:complexType>
</xs:element>
<xs:element name="character" abstract="false" nillable="false">
<xs:complexType mixed="false">
<xs:sequence minOccurs="1" maxOccurs="1">
<xs:element ref="name" minOccurs="1" maxOccurs="1"/>
<xs:element ref="born" minOccurs="1" maxOccurs="1"/>
<xs:element ref="qualification" minOccurs="1"
maxOccurs="1"/>
</xs:sequence>
<xs:attribute ref="id" use="optional"/>
</xs:complexType>
</xs:element>
</xs:schema>
)
(: in content database :)
import schema ''
at 'test.xsd';
xdmp:describe(data(<book available="0"/>/@available))
=> false()
Without the schema, the query would return xs:untypedAtomic("0"). Note
that the 'import schema...' prologue declaration isn't strictly
necessary, but might be helpful if you have more than one namespace-free
schema in your Schemas database.
-- Mike
On 2009-08-21 13:31, Fernandes, Nivaldo wrote:
Hi Michael,
In your tutorial at
http://developer.marklogic.com/howto/tutorials/2007-04-schema.xqy you write:
“Before we get started, there's one more thing we should know about XML Schema
and MarkLogic Server. They work best when our XML uses a default element
namespace. Schemas can have a target namespace, so setting a default element
namespace allows us to have multiple schemas, and automatically apply the
correct schema to the correct content.”
Since you did not say it was NOT possible to use a schema without a target
namespace (sorry for the double negative), I looked it up in the Admin and
Developer’s guide for a way to do it…but could not find it (or perhaps it was
there and I did not see it). Could you clarify if is possible to make use of a
schema without a target namespace in ML 4.1 and if so, how?
Thanks!
Nivaldo
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