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.
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Method Summary
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Method Details
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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
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