public class OptimizerTracer extends java.lang.Object implements OptionalTool
OptionalTool to create wrapper functions and views for all of the user tables in a foreign database.
Constructor and Description |
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OptimizerTracer()
0-arg constructor required by the OptionalTool contract
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Modifier and Type | Method and Description |
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void |
loadTool(java.lang.String... configurationParameters)
Turns on optimizer tracing.
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void |
unloadTool(java.lang.String... configurationParameters)
Dump the optimizer trace and turn off tracing.
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private java.sql.SQLException |
wrap(java.lang.Throwable t)
Wrap an exception in a SQLException
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public OptimizerTracer()
public void loadTool(java.lang.String... configurationParameters) throws java.sql.SQLException
Turns on optimizer tracing.
loadTool
in interface OptionalTool
java.sql.SQLException
public void unloadTool(java.lang.String... configurationParameters) throws java.sql.SQLException
Dump the optimizer trace and turn off tracing. Takes optional parameters:
unloadTool
in interface OptionalTool
java.sql.SQLException
private java.sql.SQLException wrap(java.lang.Throwable t)
Apache Derby V10.10 Internals - Copyright © 2004,2014 The Apache Software Foundation. All Rights Reserved.