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public interface ContextMappingFunction<T extends Item>
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.
Method Summary | |
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SequenceIterator<T> |
map(XPathContext context)
Map one item to a sequence. |
Method Detail |
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SequenceIterator<T> map(XPathContext context) throws XPathException
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
XPathException
- if a dynamic error is detected
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