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

Interface RewritingRule

All Known Implementing Classes:

AbstractRewritingRuleImpl, GenericRuleChangeOrderOfTwoUnaryOp, GenericRuleMergeBGPAddOfReqIntoOneBGPReq, GenericRuleMergeJoinOfTwoReqIntoOneBGPReq, RuleChangeOrderAndMergeJoinOfBGPReqIntoBGPAdd, RuleChangeOrderAndMergeJoinOfTPReqIntoTPAdd, RuleChangeOrderOfBGPAddAndTPAdd, RuleChangeOrderOfThreeSubPlansOfJOIN, RuleChangeOrderOfThreeSubPlansOfUNION, RuleChangeOrderOfTPAddAndBGPAdd, RuleChangeOrderOfTwoBGPAdd, RuleChangeOrderOfTwoSubPlansOfJOIN, RuleChangeOrderOfTwoSubPlansOfUNION, RuleChangeOrderOfTwoTPAdd, RuleConvertBGPAddToBJFILTER, RuleConvertBGPAddToBJUNION, RuleConvertBGPAddToBJVALUES, RuleConvertBGPAddToHashJoin, RuleConvertBGPAddToIndexNLJ, RuleConvertBGPAddToSymmetricHashJoin, RuleConvertGBPAddToNaiveNLJ, RuleConvertTPAddToBindJoin, RuleConvertTPAddToBJFILTER, RuleConvertTPAddToBJUNION, RuleConvertTPAddToBJVALUES, RuleConvertTPAddToHashJoin, RuleConvertTPAddToIndexNLJ, RuleConvertTPAddToNaiveNLJ, RuleConvertTPAddToSymmetricHashJoin, RuleConvertUnionOfTwoJoinsToJoinOfUnion, RuleDistributeJOINOverUNION, RuleDivideBGPAddToMultiTPAdd, RuleDivideBGPReqIntoJoinOfTPReqs, RuleDivideBGPReqIntoMultiTPAdds, RuleDivideMultiwayJoinToJoinOfSubPlans, RuleDivideMultiwayUnionToUnionOfSubPlans, RuleMergeBGPAddOfBGPReqIntoOneBGPReq, RuleMergeBGPAddOfGraphPatternReqIntoOneRequest, RuleMergeBGPAddOfTPReqIntoOneBGPReq, RuleMergeChildJoinIntoMultiwayJoin, RuleMergeChildUnionIntoMultiwayUnion, RuleMergeJoinOfOneBGPReqIntoBGPAdd, RuleMergeJoinOfOneTPReqIntoTPAdd, RuleMergeJoinOfTPReqAndBGPReqIntoOneBGPReq, RuleMergeJoinOfTwoBGPReqIntoOneReq, RuleMergeJoinOfTwoPatternReqIntoOneReq, RuleMergeJoinOfTwoTPReqIntoOneBGPReq, RuleMergeMultiwayJoinOfMultiIdenticalSubPlansIntoOne, RuleMergeMultiwayUnionOfMultiIdenticalSubPlansIntoOne, RuleMergeTPAddOfBGPAddIntoBGPAdd, RuleMergeTPAddOfBGPReqIntoOneRequest, RuleMergeTPAddOfGraphPatternReqIntoOneRequest, RuleMergeTwoBGPAddIntoOneBGPAdd, RuleMergeUnionOfTwoIdenticalSubPlansIntoOne, RuleMergeUNIONOfTwoPatternReqIntoOneReq

public interface RewritingRule

Method Summary

Modifier and Type	Method	Description
Set<RuleApplication>	determineAllPossibleApplications(PhysicalPlan plan)	Returns all possible applications of this rule for the given plan.
double	getPriority()

Method Details

getPriority

double getPriority()

determineAllPossibleApplications

Set<RuleApplication> determineAllPossibleApplications(PhysicalPlan plan)

Returns all possible applications of this rule for the given plan. Each of the returned RuleApplication objects will return the given plan when calling RuleApplication.getPlan() and it will return this rule when calling RuleApplication.getRule().