Package net.sf.saxon.sort
Interface SortKeyEvaluator
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- All Known Implementing Classes:
ForEachGroup
,SortExpression
,XPathExpressionImpl
public interface SortKeyEvaluator
Callback interface used to evaluate sort keys. An instance of this class is passed to the SortedIterator, and is used whenever a sort key value needs to be computed.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description Item
evaluateSortKey(int n, XPathContext context)
Evaluate the n'th sort key
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Method Detail
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evaluateSortKey
Item evaluateSortKey(int n, XPathContext context) throws XPathException
Evaluate the n'th sort key- Throws:
XPathException
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