Package se.liu.ida.hefquin.engine.queryplan.logical

Interface LogicalPlanWithNaryRoot

All Superinterfaces:

LogicalPlan

All Known Implementing Classes:

LogicalPlanWithNaryRootImpl

public interface LogicalPlanWithNaryRoot
extends LogicalPlan

Method Summary

Modifier and Type	Method	Description
NaryLogicalOp	getRootOperator()	Returns the root operator of this plan.
Iterator<LogicalPlan>	getSubPlans()	Convenience method that always should return an iterator over the same sub-plans that can be accessed via LogicalPlan.getSubPlan(int).

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

getExpectedVariables, getSubPlan, numberOfSubPlans

Method Details

getRootOperator

NaryLogicalOp getRootOperator()

Description copied from interface: LogicalPlan

Returns the root operator of this plan.

Specified by:

getRootOperator in interface LogicalPlan

getSubPlans

Iterator<LogicalPlan> getSubPlans()

Convenience method that always should return an iterator over the same sub-plans that can be accessed via LogicalPlan.getSubPlan(int).