Package net.sf.saxon.expr
Interface ItemMappingFunction
- All Known Implementing Classes:
AtomicSequenceConverter.AtomicSequenceMappingFunction,AtomicSequenceConverter.ToStringMappingFunction,EmptyTextNodeRemover,ForExpression.MappingAction,FunctionSequenceCoercer.Coercer,IntegratedFunctionCall.ConfigurationCheckingFunction,ItemTypeCheckingFunction,KeyFn.SubtreeFilter,WherePopulated
public interface ItemMappingFunction
ItemMappingFunction is an interface that must be satisfied by an object passed to a
ItemMappingIterator. It represents an object which, given an Item, can return either
another Item, or null.
-
Method Summary
-
Method Details
-
mapItem
Map one item to another item.- Parameters:
item- The input item to be mapped.- Returns:
- either the output item, or null.
- Throws:
XPathException- if a dynamic error occurs
-