net.sf.saxon.sort

Interface SortKeyEvaluator

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.
Method Summary
ItemevaluateSortKey(int n, XPathContext context)
Evaluate the n'th sort key of the context item

Method Detail

evaluateSortKey

public Item evaluateSortKey(int n, XPathContext context)
Evaluate the n'th sort key of the context item