public class XPLAINDefaultVisitor extends java.lang.Object implements XPLAINVisitor
Constructor and Description |
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XPLAINDefaultVisitor() |
Modifier and Type | Method and Description |
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void |
doXPLAIN(RunTimeStatistics rss,
Activation activation)
This method is the hook method which is called from the TopResultSet.
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void |
reset()
Call this method to reset the visitor for a new run over the
statistics.
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void |
setNumberOfChildren(int noChildren)
This method informs the visitor about the number of children.
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void |
visit(ResultSetStatistics statistics)
This is the Visitor hook method, which gets called from each
ResultSetStatistics.
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public void visit(ResultSetStatistics statistics)
XPLAINVisitor
visit
in interface XPLAINVisitor
statistics
- the statistics, which want to get explained.public void reset()
XPLAINVisitor
reset
in interface XPLAINVisitor
public void doXPLAIN(RunTimeStatistics rss, Activation activation)
XPLAINVisitor
doXPLAIN
in interface XPLAINVisitor
public void setNumberOfChildren(int noChildren)
XPLAINVisitor
setNumberOfChildren
in interface XPLAINVisitor
noChildren
- the number of children of the current explained node.Apache Derby V10.13 Internals - Copyright © 2004,2016 The Apache Software Foundation. All Rights Reserved.