Package net.sf.saxon.expr.flwor
Class OrderByClausePull
- java.lang.Object
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- net.sf.saxon.expr.flwor.TuplePull
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- net.sf.saxon.expr.flwor.OrderByClausePull
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public class OrderByClausePull extends TuplePull
Represents the tuple stream delivered by an "order by" clause. This sorts the tuple stream supplied as its input, and outputs the same tuples but in sorted order.
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Constructor Summary
Constructors Constructor Description OrderByClausePull(TuplePull base, TupleExpression tupleExpr, OrderByClause orderBy, XPathContext context)
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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)
Move on to the next tuple.
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Constructor Detail
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OrderByClausePull
public OrderByClausePull(TuplePull base, TupleExpression tupleExpr, OrderByClause orderBy, XPathContext context)
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Method Detail
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nextTuple
public boolean nextTuple(XPathContext context) throws XPathException
Move on to the next tuple. Before returning, this method must set all the variables corresponding to the "returned" tuple in the local stack frame associated with the context object- Specified by:
nextTuple
in classTuplePull
- 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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