Package net.sf.saxon.expr
Interface ItemMappingFunction
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- All Known Implementing Classes:
AtomicSequenceConverter.AtomicSequenceMappingFunction,AtomicSequenceConverter.ToStringMappingFunction,CompiledItemMappingFunction,EmptyTextNodeRemover,ForExpression.MappingAction,ForItemMappingAction,FunctionSequenceCoercer.Coercer,IntegratedFunctionCall.ConfigurationCheckingFunction,ItemTypeCheckingFunction,KeyFn.SubtreeFilter,WherePopulated
public interface ItemMappingFunctionItemMappingFunction 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.
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description ItemmapItem(Item item)Map one item to another item.
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Method Detail
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mapItem
Item mapItem(Item item) throws XPathException
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
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