net.sf.saxon.expr.sort
Class DecimalSortComparer

java.lang.Object
  net.sf.saxon.expr.sort.ComparableAtomicValueComparer
      net.sf.saxon.expr.sort.DecimalSortComparer

All Implemented Interfaces:

Serializable, AtomicComparer

public class DecimalSortComparer
extends ComparableAtomicValueComparer

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

Author:

Michael H. Kay

See Also:

Serialized Form

Method Summary

ComparisonKey	getComparisonKey(AtomicValue a) Get a comparison key for an object.
static DecimalSortComparer	getDecimalSortComparerInstance()

Methods inherited from class net.sf.saxon.expr.sort.ComparableAtomicValueComparer

compareAtomicValues, comparesEqual, getCollator, getInstance, provideContext

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

getDecimalSortComparerInstance

public static DecimalSortComparer getDecimalSortComparerInstance()

getComparisonKey

public ComparisonKey getComparisonKey(AtomicValue a)

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.

Specified by:

getComparisonKey in interface AtomicComparer

Overrides:

getComparisonKey in class ComparableAtomicValueComparer