Package net.sf.saxon.expr.flwor
Class WhereClausePush
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- net.sf.saxon.expr.flwor.TuplePush
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- net.sf.saxon.expr.flwor.WhereClausePush
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public class WhereClausePush extends TuplePush
This class represents the tuple stream delivered as the output of a where clause in a FLWOR expression: that is, it supplies all the tuples in its input stream that satisfy a specified predicate. It does not change the values of any variables in the tuple stream.
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Constructor Summary
Constructors Constructor Description WhereClausePush(Outputter outputter, TuplePush destination, Expression predicate)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description voidclose()Close the tuple stream, indicating that no more tuples will be suppliedvoidprocessTuple(XPathContext context)Notify the availability of the next tuple.-
Methods inherited from class net.sf.saxon.expr.flwor.TuplePush
getOutputter
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Constructor Detail
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WhereClausePush
public WhereClausePush(Outputter outputter, TuplePush destination, Expression predicate)
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Method Detail
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processTuple
public void processTuple(XPathContext context) throws XPathException
Description copied from class:TuplePushNotify the availability of the next tuple. Before calling this method, the supplier of the tuples must set all the variables corresponding to the supplied tuple in the local stack frame associated with the context object- Specified by:
processTuplein classTuplePush- Parameters:
context- the dynamic evaluation context- Throws:
XPathException- if a dynamic error occurs
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close
public void close() throws XPathExceptionDescription copied from class:TuplePushClose the tuple stream, indicating that no more tuples will be supplied- Overrides:
closein classTuplePush- Throws:
XPathException- if a dynamic error occurs
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