Package net.sf.saxon.expr
Interface ContextMappingFunction
- All Known Implementing Classes:
ForEach
,ForEachGroup
,PathExpression
,SimpleMappingExpression
public interface ContextMappingFunction
ContextMappingFunction is an interface that must be satisfied by an object passed to a
ContextMappingIterator. It represents an object which, given an Item, can return a
SequenceIterator that delivers a sequence of zero or more Items.
This is a specialization of the more general MappingFunction class: it differs in that each item being processed becomes the context item while it is being processed.
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Method Summary
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Method Details
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map
Map one item to a sequence.- Parameters:
context
- The processing context. The item to be mapped is the context item identified from this context: the values of position() and last() also relate to the set of items being mapped- Returns:
- a SequenceIterator over the sequence of items that the supplied input item maps to
- Throws:
XPathException
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