Interface LogicalPlanWithUnaryRoot

All Superinterfaces:

LogicalPlan, QueryPlan

All Known Implementing Classes:

LogicalPlanWithUnaryRootImpl

public interface LogicalPlanWithUnaryRoot
extends LogicalPlan

Method Summary

Modifier and Type	Method	Description
UnaryLogicalOp	getRootOperator()	Returns the root operator of this plan.
LogicalPlan	getSubPlan()	Convenience method that always should return the same as what is returned by calling LogicalPlan.getSubPlan(int) with a value of 0.

Methods inherited from interface se.liu.ida.hefquin.engine.queryplan.logical.LogicalPlan

getSubPlan

Methods inherited from interface se.liu.ida.hefquin.engine.queryplan.base.QueryPlan

getExpectedVariables, getID, getQueryPlanningInfo, hasQueryPlanningInfo, isSamePlan, numberOfSubPlans

Method Details

getRootOperator

UnaryLogicalOp getRootOperator()

Description copied from interface: QueryPlan

Returns the root operator of this plan.

Specified by:

getRootOperator in interface LogicalPlan

Specified by:

getRootOperator in interface QueryPlan

getSubPlan

LogicalPlan getSubPlan()

Convenience method that always should return the same as what is returned by calling LogicalPlan.getSubPlan(int) with a value of 0.