/dv/DatatypeValidator.html">DatatypeValidator</A></DD>
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<DT>public class <B>XML11IDREFDatatypeValidator</B><DT>extends <A HREF="../../../../../../org/apache/xerces/impl/dv/dtd/IDREFDatatypeValidator.html">IDREFDatatypeValidator</A></DL>

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<P>IDREFDatatypeValidator - represents the IDREFS
 attribute type from XML 1.1 recommendation. The
 Value Space of IDREF is the set of all strings
 that match the NCName production and have been
 used in an XML Document as the value of an element 
 or att