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java.lang.Objectnet.sf.saxon.expr.flwor.TuplePull
com.saxonica.expr.flwor.WindowClausePull
public class WindowClausePull
Implement a sliding or tumbling window clause of a FLWOR expression in tuple-pull mode. The entire window processing is activated once for each input tuple, and it generates one output tuple for each identified window.
| Constructor Summary | |
|---|---|
WindowClausePull(TuplePull source,
WindowClause windowClause,
XPathContext context)
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| Method Summary | |
|---|---|
void |
close()
Close the tuple stream, indicating that no more tuples will be supplied |
boolean |
nextTuple(XPathContext context)
Move on to the next tuple. |
void |
processWindow(WindowClause.Window w,
XPathContext context)
Despatch a window to the output tuple stream. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
|---|
public WindowClausePull(TuplePull source,
WindowClause windowClause,
XPathContext context)
| Method Detail |
|---|
public boolean nextTuple(XPathContext context)
throws XPathException
nextTuple in class TuplePullcontext - the dynamic evaluation context
XPathException
public void processWindow(WindowClause.Window w,
XPathContext context)
throws XPathException
w - the window to be despatchedcontext - the dynamic evaluation context
XPathExceptionpublic void close()
close in class TuplePull
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