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public interface XPLAINFactoryIF
This is the factory interface of the XPLAINFactory facility. It extends the possibilities and provides a convenient protocol to explain queries on basis of the query execution plan. This plan manfifests in Derby in the different ResultSets and their associated statistics. The introduction of this factory interface makes it possible to switch to another implementation or to easily extend the API.
Field Summary | |
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static java.lang.String |
MODULE
Module name for the monitor's module locating system. |
Method Summary | |
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void |
freeResources()
This method gets called when the user switches off the explain facility. |
XPLAINVisitor |
getXPLAINVisitor()
This method returns an appropriate visitor to traverse the ResultSetStatistics. |
Field Detail |
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static final java.lang.String MODULE
Method Detail |
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XPLAINVisitor getXPLAINVisitor() throws StandardException
StandardException
XPLAINVisitor
void freeResources()
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Built on Thu 2010-12-23 20:49:13+0000, from revision ??? | ||||||||
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