Greetings,
Is there any way to read XML schemas and generate a tree structure for an
element given a doctype. I have used the validation facilities of xerces
with W3c schemas but I am not familiar with with the API used for reading
schemas.
I could not find any helpful information from the API documentation.
After reading <Source>personal.xsd</Source> schema supplied with Xerces and
selecting the root element as <RootElement>personnel</RootElement>.
I want to show a tree generated by reading the schema as
personnel
|
+----person
|
+----(At) id
|
+---(,)
|
+----(1) name
|
+----(1) email
|
+----(1) link
| |
| +-----(At) Manager
and So on........
Personal.xsd
--------------------
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs='http://www.w3.org/2001/XMLSchema'>
<xs:element name="personnel">
<xs:complexType>
<xs:sequence>
<xs:element ref="person" minOccurs='1' maxOccurs='unbounded'/>
</xs:sequence>
</xs:complexType>
<xs:unique name="unique1">
<xs:selector xpath="person"/>
<xs:field xpath="name/given"/>
<xs:field xpath="name/family"/>
</xs:unique>
<xs:key name='empid'>
<xs:selector xpath="person"/>
<xs:field xpath="@id"/>
</xs:key>
<xs:keyref name="keyref1" refer='empid'>
<xs:selector xpath="person"/>
<xs:field xpath="link/@manager"/>
</xs:keyref>
</xs:element>
<xs:element name="person">
<xs:complexType>
<xs:sequence>
<xs:element ref="name"/>
<xs:element ref="email" minOccurs='0' maxOccurs='unbounded'/>
<xs:element ref="url" minOccurs='0' maxOccurs='unbounded'/>
<xs:element ref="link" minOccurs='0' maxOccurs='1'/>
</xs:sequence>
<xs:attribute name="id" type="xs:ID" use='required'/>
<xs:attribute name="note" type="xs:string"/>
<xs:attribute name="contr" default="false">
<xs:simpleType>
<xs:restriction base = "xs:string">
<xs:enumeration value="true"/>
<xs:enumeration value="false"/>
</xs:restriction>
</xs:simpleType>
</xs:attribute>
<xs:attribute name="salary" type="xs:integer"/>
</xs:complexType>
</xs:element>
<xs:element name="name">
<xs:complexType>
<xs:all>
<xs:element ref="family"/>
<xs:element ref="given"/>
</xs:all>
</xs:complexType>
</xs:element>
<xs:element name="family" type='xs:string'/>
<xs:element name="given" type='xs:string'/>
<xs:element name="email" type='xs:string'/>
<xs:element name="url">
<xs:complexType>
<xs:attribute name="href" type="xs:string" default="http://"/>
</xs:complexType>
</xs:element>
<xs:element name="link">
<xs:complexType>
<xs:attribute name="manager" type="xs:IDREF"/>
<xs:attribute name="subordinates" type="xs:IDREFS"/>
</xs:complexType>
</xs:element>
<xs:notation name='gif' public='-//APP/Photoshop/4.0'
system='photoshop.exe'/>
</xs:schema>
Any insight into this would be of great help.
Regards,
Suresh
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