net.sf.farrago.defimpl
Class FarragoVolcanoPersonalityFactory

java.lang.Object
  net.sf.farrago.defimpl.FarragoVolcanoPersonalityFactory

All Implemented Interfaces:

FarragoSessionPersonalityFactory

public class FarragoVolcanoPersonalityFactory
extends Object
implements FarragoSessionPersonalityFactory

FarragoVolcanoPersonalityFactory implements the FarragoSessionPersonalityFactory interface by using Volcano to implement cost-based optimization.

Version:

$Id: //open/dev/farrago/src/net/sf/farrago/defimpl/FarragoVolcanoPersonalityFactory.java#6 $

Author:

John V. Sichi

Nested Class Summary

private static class

FarragoVolcanoPersonalityFactory.FarragoVolcanoSessionPersonality

Constructor Summary

FarragoVolcanoPersonalityFactory()

Method Summary

FarragoSessionPersonality

newSessionPersonality(FarragoSession session, FarragoSessionPersonality defaultPersonality) Creates a new session personality.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FarragoVolcanoPersonalityFactory

public FarragoVolcanoPersonalityFactory()

Method Detail

newSessionPersonality

public FarragoSessionPersonality newSessionPersonality(FarragoSession session,
                                                       FarragoSessionPersonality defaultPersonality)

Description copied from interface: FarragoSessionPersonalityFactory

Creates a new session personality.

Specified by:

newSessionPersonality in interface FarragoSessionPersonalityFactory

Parameters:

session - session for which personality is being created; note that the personality may be used for other sessions as well, so no reference to this session should be retained

defaultPersonality - a default personality to which the new personality may delegate, or null if no default is available

Returns:

personality