net.sf.farrago.session
Interface FarragoSessionPlanner

All Superinterfaces:

RelOptPlanner

All Known Implementing Classes:

FarragoDefaultHeuristicPlanner, FarragoDefaultPlanner, FarragoMiniplanPersonalityFactory.FarragoVolcanoMiniplanner, FarragoTestPlanner, LucidDbSessionPersonality.LucidDbPlanner

public interface FarragoSessionPlanner
extends RelOptPlanner

FarragoSessionPlanner represents a query planner/optimizer associated with a specific FarragoPreparingStmt.

Version:

$Id: //open/dev/farrago/src/net/sf/farrago/session/FarragoSessionPlanner.java#10 $

Author:

stephan

Field Summary

Fields inherited from interface org.eigenbase.relopt.RelOptPlanner

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Method Summary

void	beginMedPluginRegistration(String serverClassName) Notifies this planner that registration for a particular SQL/MED plugin is about to start, meaning the plugin might call the planner via methods such as RelOptPlanner.addRule(org.eigenbase.relopt.RelOptRule).
void	endMedPluginRegistration() Notifies this planner that registration has ended for the SQL/MED plugin whose identity was last passed to beginMedPluginRegistration.
FarragoSessionPreparingStmt	getPreparingStmt()

Methods inherited from interface org.eigenbase.relopt.RelOptPlanner

addListener, addRelTraitDef, addRule, changeTraits, chooseDelegate, ensureRegistered, findBestExp, getCost, getJavaRelImplementor, getRelMetadataTimestamp, getRoot, isRegistered, makeCost, makeHugeCost, makeInfiniteCost, makeTinyCost, makeZeroCost, register, registerMetadataProviders, registerSchema, removeRule, setCancelFlag, setImportance, setRoot, setRuleDescExclusionFilter

Method Detail

getPreparingStmt

FarragoSessionPreparingStmt getPreparingStmt()

Returns:

the FarragoSessionPreparingStmt associated with this planner.

beginMedPluginRegistration

void beginMedPluginRegistration(String serverClassName)

Notifies this planner that registration for a particular SQL/MED plugin is about to start, meaning the plugin might call the planner via methods such as RelOptPlanner.addRule(org.eigenbase.relopt.RelOptRule).

Parameters:

serverClassName - name of class implementing FarragoMedDataServer

endMedPluginRegistration

void endMedPluginRegistration()

Notifies this planner that registration has ended for the SQL/MED plugin whose identity was last passed to beginMedPluginRegistration.