com.saxonica.deploy
Interface ContextPredicateFunction

public interface ContextPredicateFunction

ContextPredicateFunction is an interface that must be satisfied by an object passed to a ContextFilterIterator. It represents an object which, given the context, returns a boolean indicating whether the context item satisfies a predicate.

Method Summary

boolean

matches(XPathContext context) Test whether the context item satisfies a predicate.

Method Detail

matches

boolean matches(XPathContext context)
                throws XPathException

Test whether the context item satisfies a predicate.

Parameters:

context - The processing context. The item to be tested is the context item identified from this context: the values of position() and last() also relate to the set of items being filtered

Returns:

true if the item is to be included in the result, otherwise false

Throws:

XPathException