net.sf.saxon.expr
Class ForExpression.EventMappingAction
java.lang.Object
net.sf.saxon.expr.ForExpression.EventMappingAction
- All Implemented Interfaces:
- EventMappingFunction
- Enclosing class:
- ForExpression
protected static class ForExpression.EventMappingAction
- extends Object
- implements EventMappingFunction
The EventMappingAction represents the action to be taken for each item in the
source sequence. It acts as the EventMappingFunction for the mapping iterator, and
also provides the Binding of the position variable (at $n) in XQuery, if used.
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
ForExpression.EventMappingAction
public ForExpression.EventMappingAction(XPathContext context,
int slotNumber,
PositionVariable positionBinding,
Expression action)
map
public EventIterator map(Item item)
throws XPathException
- Description copied from interface:
EventMappingFunction
- Map one item to a sequence of pull events.
- Specified by:
map
in interface EventMappingFunction
- Parameters:
item
- The item to be mapped.
- Returns:
- one of the following: (a) an EventIterator over the sequence of items that the supplied input
item maps to, or (b) null if it maps to an empty sequence.
- Throws:
XPathException
Copyright (c) 2004-2011 Saxonica Limited. All rights reserved.