XPLAINDefaultVisitor
, XPLAINSystemTableVisitor
public interface XPLAINVisitor
Modifier and Type | Method | Description |
---|---|---|
void |
doXPLAIN(RunTimeStatistics rss,
Activation activation) |
This method is the hook method which is called from the TopResultSet.
|
void |
reset() |
Call this method to reset the visitor for a new run over the
statistics.
|
void |
setNumberOfChildren(int noChildren) |
This method informs the visitor about the number of children.
|
void |
visit(ResultSetStatistics statistics) |
This is the Visitor hook method, which gets called from each
ResultSetStatistics.
|
void reset()
void doXPLAIN(RunTimeStatistics rss, Activation activation) throws StandardException
StandardException
void visit(ResultSetStatistics statistics)
statistics
- the statistics, which want to get explained.void setNumberOfChildren(int noChildren)
noChildren
- the number of children of the current explained node.Apache Derby V10.14 Internals - Copyright © 2004,2018 The Apache Software Foundation. All Rights Reserved.