Package se.liu.ida.hefquin.engine.queryproc.impl.poptimizer.rewriting

Interface RuleApplication

All Superinterfaces:

RandomizedSelection.WeightedObject

All Known Implementing Classes:

AbstractRuleApplicationImpl

public interface RuleApplication
extends RandomizedSelection.WeightedObject

Method Summary

Modifier and Type	Method	Description
PhysicalPlan	getPlan()	Returns the (complete) original plan to which the rule is meant to be applied.
PhysicalPlan	getResultingPlan()	Returns the complete rewritten plan.
RewritingRule	getRule()	Returns the actual rewriting rule to be applied.

Methods inherited from interface se.liu.ida.hefquin.base.utils.RandomizedSelection.WeightedObject

getWeight

Method Details

getRule

RewritingRule getRule()

Returns the actual rewriting rule to be applied.@return

getPlan

PhysicalPlan getPlan()

Returns the (complete) original plan to which the rule is meant to be applied. Note that this is really the whole original plan, not just the specific subplan that is meant to be modified by the rule application.

getResultingPlan

PhysicalPlan getResultingPlan()

Returns the complete rewritten plan.