howto extract type pattern from xsd shema file / or DOM Document object from JAVA

[andrzej.gdula]

I'd like to extract the value "[a-z]{1,10} " from
<pattern value="[a-z]{1,10}"></pattern>
For given Node of JDOM

how to deal with this problem. Do i have to parse the xsd file using
SAX or JDOM, and get the pattern form Document ?
Is there any other way to do this ?

here is the code of schema file
home.xsd :
_________________________________________________________

<?xml version="1.0" encoding="UTF-8"?>
<schema xmlns="http://www.w3.org/2001/XMLSchema"
targetNamespace="http://www.java3d.gkiro.zti.iinf.ps/budynek"
xmlns:b="http://www.java3d.gkiro.zti.iinf.ps/budynek"
xmlns:Q1="http://www.java3d.gkiro.zti.iinf.ps/budynek">
[...]
<complexType name="TypeWall">
[...]
<attribute name="color" type="b:Color" use="optional"
default="0.0">
</attribute>
</complexType>
[...]
<simpleType name="Color">
<restriction base="string">
<pattern value="[a-z]{1,10}"></pattern>
</restriction>
</simpleType>
[...]
</schema>
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