Package net.sf.saxon.expr.flwor
Class ForClauseOuterPull
- java.lang.Object
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- net.sf.saxon.expr.flwor.TuplePull
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- net.sf.saxon.expr.flwor.ForClausePull
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- net.sf.saxon.expr.flwor.ForClauseOuterPull
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public class ForClauseOuterPull extends ForClausePull
This class represents the tuple stream returned by a "for" clause in a FLWOR expression
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Field Summary
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Fields inherited from class net.sf.saxon.expr.flwor.ForClausePull
base, currentIteration, forClause
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Constructor Summary
Constructors Constructor Description ForClauseOuterPull(TuplePull base, ForClause forClause)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description void
close()
Close the tuple stream, indicating that although not all tuples have been read, no further tuples are required and resources can be releasedboolean
nextTuple(XPathContext context)
Deliver the next output tuple.
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Method Detail
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nextTuple
public boolean nextTuple(XPathContext context) throws XPathException
Deliver the next output tuple. Before returning, this method must set all the variables corresponding to the output tuple in the local stack frame associated with the context object- Overrides:
nextTuple
in classForClausePull
- Parameters:
context
- the dynamic evaluation context- Returns:
- true if another tuple has been generated; false if the tuple stream is exhausted. If the method returns false, the values of the local variables corresponding to this tuple stream are undefined.
- Throws:
XPathException
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close
public void close()
Close the tuple stream, indicating that although not all tuples have been read, no further tuples are required and resources can be released- Overrides:
close
in classForClausePull
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