net.sf.saxon.functions

Class DistinctValues

public class DistinctValues extends CollatingFunction

The XPath 2.0 distinct-values() function

Nested Class Summary
static class	DistinctValues.DistinctIterator Iterator class to return the distinct values in a sequence

Method Summary
void	checkArguments(ExpressionVisitor visitor)
AtomicComparer	getAtomicComparer() Get the AtomicComparer allocated at compile time.
SequenceIterator	iterate(XPathContext context) Evaluate the function to return an iteration of selected values or nodes.

Method Detail

public void checkArguments(ExpressionVisitor visitor)

public AtomicComparer getAtomicComparer()

Get the AtomicComparer allocated at compile time.

Returns: the AtomicComparer if one has been allocated at compile time; return null if the collation is not known until run-time

Evaluate the function to return an iteration of selected values or nodes.