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CollationURIResolver
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net.sf.saxon.lib</FONT>
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Interface CollationURIResolver</H2>
<DL>
<DT><B>All Superinterfaces:</B> <DD><A HREF="http://download.oracle.com/javase/6/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</A></DD>
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<DT><B>All Known Implementing Classes:</B> <DD><A HREF="../../../../net/sf/saxon/lib/StandardCollationURIResolver.html" title="class in net.sf.saxon.lib">StandardCollationURIResolver</A></DD>
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<DT><PRE>public interface <B>CollationURIResolver</B><DT>extends <A HREF="http://download.oracle.com/javase/6/docs/api/java/io/Serializable.html?is-external=true" title="class or interface in java.io">Serializable</A></DL>
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<P>
A CollationURIResolver accepts a collation name as input, and returns
a collation (represented by a <A HREF="../../../../net/sf/saxon/lib/StringCollator.html" title="interface in net.sf.saxon.lib"><CODE>StringCollator</CODE></A> as output. A CollationURIResolver
can be registered with the Configuration (or with a TransformerFactory)
to resolve all collation URIs used in a stylesheet or query.
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<CODE> <A HREF="../../../../net/sf/saxon/lib/StringCollator.html" title="interface in net.sf.saxon.lib">StringCollator</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../net/sf/saxon/lib/CollationURIResolver.html#resolve(java.lang.String, java.lang.String, net.sf.saxon.Configuration)">resolve</A></B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> relativeURI,
<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> baseURI,
<A HREF="../../../../net/sf/saxon/Configuration.html" title="class in net.sf.saxon">Configuration</A> config)</CODE>
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Resolve a collation URI (expressed as a string) and return
the corresponding collation.</TD>
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<A NAME="resolve(java.lang.String, java.lang.String, net.sf.saxon.Configuration)"><!-- --></A><H3>
resolve</H3>
<PRE>
<A HREF="../../../../net/sf/saxon/lib/StringCollator.html" title="interface in net.sf.saxon.lib">StringCollator</A> <B>resolve</B>(<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> relativeURI,
<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</A> baseURI,
<A HREF="../../../../net/sf/saxon/Configuration.html" title="class in net.sf.saxon">Configuration</A> config)</PRE>
<DL>
<DD>Resolve a collation URI (expressed as a string) and return
the corresponding collation.
<P>
<DD><DL>
</DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>relativeURI</CODE> - the collation URI as written in the query or stylesheet<DD><CODE>baseURI</CODE> - The base URI of the static context where the collation URI
appears. The base URI is available only in cases where the collation URI is resolved
at compile time; in cases where the collation URI is not resolved until execution
time (typically because it is supplied as an expression rather than as a string literal)
this parameter is currently set to null.<DD><CODE>config</CODE> - The configuration. Provided in case the collation URI resolver
needs it.
<DT><B>Returns:</B><DD>a StringCollator, representing the collation to be used. Note that although
any StringCollator may be returned, functions such as contains() that need to break
a string into its collation units will work only if the returned StringCollator
is a <A HREF="../../../../net/sf/saxon/lib/SubstringMatcher.html" title="interface in net.sf.saxon.lib"><CODE>SubstringMatcher</CODE></A>.
<p>If the Collation URI cannot be resolved, return null.
Note that unlike the JAXP URIResolver, returning null does not cause the default
CollationURIResolver to be invoked; if this is required, the user-written CollationURIResolver
should explicitly instantiate and invoke the <A HREF="../../../../net/sf/saxon/lib/StandardCollationURIResolver.html" title="class in net.sf.saxon.lib"><CODE>StandardCollationURIResolver</CODE></A> before
returning null.</p><DT><B>Since:</B></DT>
<DD>8.5/8.9 (this interface was introduced provisionally in 8.5, and modified in 8.9 to return
a StringCollator rather than a Comparator).</DD>
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