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

Class LogicalToPhysicalPlanConverterImpl.Worker

java.lang.Object

se.liu.ida.hefquin.engine.queryplan.utils.LogicalToPhysicalPlanConverterImpl.Worker

Enclosing class:

LogicalToPhysicalPlanConverterImpl

protected class LogicalToPhysicalPlanConverterImpl.Worker
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
protected final Map<LogicalPlan,PhysicalPlan>	convertedSubPlans

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	Worker()

Method Summary

Modifier and Type	Method	Description
PhysicalPlan	convert(LogicalPlan lp, boolean keepMultiwayJoins)
protected List<PhysicalPlan>	convertChildren(LogicalPlan lp, boolean keepMultiwayJoins)	Converts the sub-plans of the given logical plan (if any) and returns a list of the resulting physical plans.
protected PhysicalPlan	createPhysicalPlan(LogicalOperator lop, List<PhysicalPlan> children, boolean keepMultiwayJoins)
protected PhysicalPlan	createPhysicalPlanForMultiwayJoin(LogicalOpMultiwayJoin lop, List<PhysicalPlan> children, boolean keepMultiwayJoins)
protected PhysicalPlan	createPhysicalPlanForMultiwayLeftJoin(LogicalOpMultiwayLeftJoin lop, List<PhysicalPlan> children, boolean keepMultiwayJoins)
protected PhysicalPlan	createPhysicalPlanForMultiwayUnion(LogicalOpMultiwayUnion lop, List<PhysicalPlan> children)
protected PhysicalPlan	createPhysicalPlanWithBinaryRoot(BinaryLogicalOp lop, PhysicalPlan child1, PhysicalPlan child2)
protected PhysicalPlan	createPhysicalPlanWithNaryRoot(NaryLogicalOp lop, List<PhysicalPlan> children, boolean keepMultiwayJoins)
protected PhysicalPlan	createPhysicalPlanWithNullaryRoot(NullaryLogicalOp lop)
protected PhysicalPlan	createPhysicalPlanWithUnaryRoot(UnaryLogicalOp lop, PhysicalPlan child)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

convertedSubPlans

protected final Map<LogicalPlan,PhysicalPlan> convertedSubPlans

Constructor Details

Worker

protected Worker()

Method Details

convert

public PhysicalPlan convert(LogicalPlan lp,
 boolean keepMultiwayJoins)

convertChildren

protected List<PhysicalPlan> convertChildren(LogicalPlan lp,
 boolean keepMultiwayJoins)

Converts the sub-plans of the given logical plan (if any) and returns a list of the resulting physical plans. The order of the physical plans in the returned list is such that the i-th physical plan in the list is the physical plan that has been created for the i-th sub-plan of the given logical plan. For logical plans that do not contain any sub-plans, an empty list is returned.

createPhysicalPlan

protected PhysicalPlan createPhysicalPlan(LogicalOperator lop,
 List<PhysicalPlan> children,
 boolean keepMultiwayJoins)

createPhysicalPlanWithNullaryRoot

protected PhysicalPlan createPhysicalPlanWithNullaryRoot(NullaryLogicalOp lop)

createPhysicalPlanWithUnaryRoot

protected PhysicalPlan createPhysicalPlanWithUnaryRoot(UnaryLogicalOp lop,
 PhysicalPlan child)

createPhysicalPlanWithBinaryRoot

protected PhysicalPlan createPhysicalPlanWithBinaryRoot(BinaryLogicalOp lop,
 PhysicalPlan child1,
 PhysicalPlan child2)

createPhysicalPlanWithNaryRoot

protected PhysicalPlan createPhysicalPlanWithNaryRoot(NaryLogicalOp lop,
 List<PhysicalPlan> children,
 boolean keepMultiwayJoins)

createPhysicalPlanForMultiwayJoin

protected PhysicalPlan createPhysicalPlanForMultiwayJoin(LogicalOpMultiwayJoin lop,
 List<PhysicalPlan> children,
 boolean keepMultiwayJoins)

createPhysicalPlanForMultiwayLeftJoin

protected PhysicalPlan createPhysicalPlanForMultiwayLeftJoin(LogicalOpMultiwayLeftJoin lop,
 List<PhysicalPlan> children,
 boolean keepMultiwayJoins)

createPhysicalPlanForMultiwayUnion

protected PhysicalPlan createPhysicalPlanForMultiwayUnion(LogicalOpMultiwayUnion lop,
 List<PhysicalPlan> children)