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

Interface NullaryPhysicalOpForLogicalOp

All Superinterfaces:

NullaryPhysicalOp, PhysicalOperator, PhysicalOperatorForLogicalOperator

All Known Implementing Classes:

PhysicalOpRequest

public interface NullaryPhysicalOpForLogicalOp
extends PhysicalOperatorForLogicalOperator, NullaryPhysicalOp

An interface for any type of PhysicalOperator that directly implements a particular logical operator that has an arity of zero. That logical operator can be accessed via the getLogicalOperator() function.

Method Summary

Modifier and Type	Method	Description
NullaryLogicalOp	getLogicalOperator()	Returns the logical operator implemented by this physical operator.

Methods inherited from interface se.liu.ida.hefquin.engine.queryplan.physical.NullaryPhysicalOp

createExecOp

Methods inherited from interface se.liu.ida.hefquin.engine.queryplan.physical.PhysicalOperator

getExpectedVariables, getID, visit

Method Details

getLogicalOperator

NullaryLogicalOp getLogicalOperator()

Description copied from interface: PhysicalOperatorForLogicalOperator

Returns the logical operator implemented by this physical operator.

Specified by:

getLogicalOperator in interface PhysicalOperatorForLogicalOperator