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DecimalSortComparer
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net.sf.saxon.expr.sort</FONT>
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Class DecimalSortComparer</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 "><A HREF="../../../../../net/sf/saxon/expr/sort/ComparableAtomicValueComparer.html" title="class in net.sf.saxon.expr.sort">net.sf.saxon.expr.sort.ComparableAtomicValueComparer</A>
<IMG SRC="../../../../../resources/inherit.gif" ALT="extended by "><B>net.sf.saxon.expr.sort.DecimalSortComparer</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/expr/sort/AtomicComparer.html" title="interface in net.sf.saxon.expr.sort">AtomicComparer</A></DD>
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<DT><PRE>public class <B>DecimalSortComparer</B><DT>extends <A HREF="../../../../../net/sf/saxon/expr/sort/ComparableAtomicValueComparer.html" title="class in net.sf.saxon.expr.sort">ComparableAtomicValueComparer</A></DL>
</PRE>
<P>
An AtomicComparer used for sorting values that are known to be instances of xs:decimal (including xs:integer),
It also supports a separate method for getting a collation key to test equality of items
<P>
<P>
<DL>
<DT><B>Author:</B></DT>
<DD>Michael H. Kay</DD>
<DT><B>See Also:</B><DD><A HREF="../../../../../serialized-form.html#net.sf.saxon.expr.sort.DecimalSortComparer">Serialized Form</A></DL>
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<B>Method Summary</B></FONT></TH>
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<CODE> <A HREF="../../../../../net/sf/saxon/expr/sort/ComparisonKey.html" title="class in net.sf.saxon.expr.sort">ComparisonKey</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/saxon/expr/sort/DecimalSortComparer.html#getComparisonKey(net.sf.saxon.value.AtomicValue)">getComparisonKey</A></B>(<A HREF="../../../../../net/sf/saxon/value/AtomicValue.html" title="class in net.sf.saxon.value">AtomicValue</A> a)</CODE>
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Get a comparison key for an object.</TD>
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<CODE>static <A HREF="../../../../../net/sf/saxon/expr/sort/DecimalSortComparer.html" title="class in net.sf.saxon.expr.sort">DecimalSortComparer</A></CODE></FONT></TD>
<TD><CODE><B><A HREF="../../../../../net/sf/saxon/expr/sort/DecimalSortComparer.html#getDecimalSortComparerInstance()">getDecimalSortComparerInstance</A></B>()</CODE>
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<TH ALIGN="left"><B>Methods inherited from class net.sf.saxon.expr.sort.<A HREF="../../../../../net/sf/saxon/expr/sort/ComparableAtomicValueComparer.html" title="class in net.sf.saxon.expr.sort">ComparableAtomicValueComparer</A></B></TH>
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<TD><CODE><A HREF="../../../../../net/sf/saxon/expr/sort/ComparableAtomicValueComparer.html#compareAtomicValues(net.sf.saxon.value.AtomicValue, net.sf.saxon.value.AtomicValue)">compareAtomicValues</A>, <A HREF="../../../../../net/sf/saxon/expr/sort/ComparableAtomicValueComparer.html#comparesEqual(net.sf.saxon.value.AtomicValue, net.sf.saxon.value.AtomicValue)">comparesEqual</A>, <A HREF="../../../../../net/sf/saxon/expr/sort/ComparableAtomicValueComparer.html#getCollator()">getCollator</A>, <A HREF="../../../../../net/sf/saxon/expr/sort/ComparableAtomicValueComparer.html#getInstance()">getInstance</A>, <A HREF="../../../../../net/sf/saxon/expr/sort/ComparableAtomicValueComparer.html#provideContext(net.sf.saxon.expr.XPathContext)">provideContext</A></CODE></TD>
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<A NAME="getDecimalSortComparerInstance()"><!-- --></A><H3>
getDecimalSortComparerInstance</H3>
<PRE>
public static <A HREF="../../../../../net/sf/saxon/expr/sort/DecimalSortComparer.html" title="class in net.sf.saxon.expr.sort">DecimalSortComparer</A> <B>getDecimalSortComparerInstance</B>()</PRE>
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<DD><DL>
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<A NAME="getComparisonKey(net.sf.saxon.value.AtomicValue)"><!-- --></A><H3>
getComparisonKey</H3>
<PRE>
public <A HREF="../../../../../net/sf/saxon/expr/sort/ComparisonKey.html" title="class in net.sf.saxon.expr.sort">ComparisonKey</A> <B>getComparisonKey</B>(<A HREF="../../../../../net/sf/saxon/value/AtomicValue.html" title="class in net.sf.saxon.value">AtomicValue</A> a)</PRE>
<DL>
<DD>Get a comparison key for an object. This must satisfy the rule that if two objects are equal as defined
by the XPath eq operator, then their comparison keys are equal as defined by the Java equals() method,
and vice versa. There is no requirement that the comparison keys should reflect the ordering of the
underlying objects.
<P>
<DD><DL>
<DT><B>Specified by:</B><DD><CODE><A HREF="../../../../../net/sf/saxon/expr/sort/AtomicComparer.html#getComparisonKey(net.sf.saxon.value.AtomicValue)">getComparisonKey</A></CODE> in interface <CODE><A HREF="../../../../../net/sf/saxon/expr/sort/AtomicComparer.html" title="interface in net.sf.saxon.expr.sort">AtomicComparer</A></CODE><DT><B>Overrides:</B><DD><CODE><A HREF="../../../../../net/sf/saxon/expr/sort/ComparableAtomicValueComparer.html#getComparisonKey(net.sf.saxon.value.AtomicValue)">getComparisonKey</A></CODE> in class <CODE><A HREF="../../../../../net/sf/saxon/expr/sort/ComparableAtomicValueComparer.html" title="class in net.sf.saxon.expr.sort">ComparableAtomicValueComparer</A></CODE></DL>
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