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AlphanumericCollator
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net.sf.saxon.expr.sort</FONT>
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Class AlphanumericCollator</H2>
<PRE>
<A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</A>
<IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>net.sf.saxon.expr.sort.AlphanumericCollator</B>
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<DT><B>All Implemented Interfaces:</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>, <A HREF="../../../../../net/sf/saxon/lib/StringCollator.html" title="interface in net.sf.saxon.lib">StringCollator</A></DD>
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<DT><PRE>public class <B>AlphanumericCollator</B><DT>extends <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A><DT>implements <A HREF="../../../../../net/sf/saxon/lib/StringCollator.html" title="interface in net.sf.saxon.lib">StringCollator</A>, <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>
</PRE>
<P>
A Comparer that treats strings as an alternating sequence of alpha parts and numeric parts. The
alpha parts are compared using a base collation supplied as a parameter; the numeric parts are
compared numerically. "Numeric" here means a sequence of consecutive ASCII digits 0-9.
<p>
Note: this StringCollator produces an ordering that is not compatible with equals().
</p>
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<DT><B>See Also:</B><DD><A HREF="../../../../../serialized-form.html#net.sf.saxon.expr.sort.AlphanumericCollator">Serialized Form</A></DL>
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<TD><CODE><B><A HREF="../../../../../net/sf/saxon/expr/sort/AlphanumericCollator.html#AlphanumericCollator(net.sf.saxon.lib.StringCollator)">AlphanumericCollator</A></B>(<A HREF="../../../../../net/sf/saxon/lib/StringCollator.html" title="interface in net.sf.saxon.lib">StringCollator</A> base)</CODE>
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Create an alphanumeric collation</TD>
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<CODE> boolean</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/saxon/expr/sort/AlphanumericCollator.html#comparesEqual(java.lang.String, java.lang.String)">comparesEqual</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> s1,
<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> s2)</CODE>
<BR>
Compare two strings for equality.</TD>
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<CODE> int</CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/saxon/expr/sort/AlphanumericCollator.html#compareStrings(java.lang.String, java.lang.String)">compareStrings</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> s1,
<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> s2)</CODE>
<BR>
Compare two objects.</TD>
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<CODE> <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/saxon/expr/sort/AlphanumericCollator.html#getCollationKey(java.lang.String)">getCollationKey</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> s)</CODE>
<BR>
Get a collation key for two Strings.</TD>
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<A NAME="AlphanumericCollator(net.sf.saxon.lib.StringCollator)"><!-- --></A><H3>
AlphanumericCollator</H3>
<PRE>
public <B>AlphanumericCollator</B>(<A HREF="../../../../../net/sf/saxon/lib/StringCollator.html" title="interface in net.sf.saxon.lib">StringCollator</A> base)</PRE>
<DL>
<DD>Create an alphanumeric collation
<P>
<DL>
<DT><B>Parameters:</B><DD><CODE>base</CODE> - the collation used to compare the alphabetic parts of the string</DL>
</DL>
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<A NAME="compareStrings(java.lang.String, java.lang.String)"><!-- --></A><H3>
compareStrings</H3>
<PRE>
public int <B>compareStrings</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> s1,
<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> s2)</PRE>
<DL>
<DD>Compare two objects.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../net/sf/saxon/lib/StringCollator.html#compareStrings(java.lang.String, java.lang.String)">compareStrings</A></CODE> in interface <CODE><A HREF="../../../../../net/sf/saxon/lib/StringCollator.html" title="interface in net.sf.saxon.lib">StringCollator</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>s1</CODE> - the first string<DD><CODE>s2</CODE> - the second string
<DT><B>Returns:</B><DD><0 if a<b, 0 if a=b, >0 if a>b</DL>
</DD>
</DL>
<HR>
<A NAME="comparesEqual(java.lang.String, java.lang.String)"><!-- --></A><H3>
comparesEqual</H3>
<PRE>
public boolean <B>comparesEqual</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> s1,
<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> s2)</PRE>
<DL>
<DD>Compare two strings for equality. This may be more efficient than using compareStrings and
testing whether the result is zero, but it must give the same result
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../net/sf/saxon/lib/StringCollator.html#comparesEqual(java.lang.String, java.lang.String)">comparesEqual</A></CODE> in interface <CODE><A HREF="../../../../../net/sf/saxon/lib/StringCollator.html" title="interface in net.sf.saxon.lib">StringCollator</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>s1</CODE> - the first string<DD><CODE>s2</CODE> - the second string
<DT><B>Returns:</B><DD>true if and only if the strings are considered equal,</DL>
</DD>
</DL>
<HR>
<A NAME="getCollationKey(java.lang.String)"><!-- --></A><H3>
getCollationKey</H3>
<PRE>
public <A HREF="http://download.oracle.com/javase/6/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</A> <B>getCollationKey</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> s)</PRE>
<DL>
<DD>Get a collation key for two Strings. The essential property of collation keys
is that if two values are equal under the collation, then the collation keys are
compare correctly under the equals() method.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../net/sf/saxon/lib/StringCollator.html#getCollationKey(java.lang.String)">getCollationKey</A></CODE> in interface <CODE><A HREF="../../../../../net/sf/saxon/lib/StringCollator.html" title="interface in net.sf.saxon.lib">StringCollator</A></CODE></DL>
</DD>
<DD><DL>
<DT><B>Parameters:</B><DD><CODE>s</CODE> - the string whose collation key is required
<DT><B>Returns:</B><DD>the collation key</DL>
</DD>
</DL>
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