Class BaseForMappingOperator

java.lang.Object

se.liu.ida.hefquin.mappings.algebra.ops.BaseForMappingOperator

All Implemented Interfaces:

MappingOperator

Direct Known Subclasses:

BaseForBinaryMappingOperator, BaseForNaryMappingOperator, BaseForUnaryMappingOperator, MappingOpConstant, MappingOpExtract

public abstract class BaseForMappingOperator
extends Object
implements MappingOperator

This is an abstract base class for classes that implement concrete specializations of the MappingOperator interface. This base class handles the creation of a unique ID per operator.

Field Summary

Fields

Modifier and Type	Field	Description
protected final int	id

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	BaseForMappingOperator()

Method Summary

Modifier and Type	Method	Description
int	getID()	Returns an identifier of this operator, which should be distinct from the identifiers of all other operators within the same plan (no matter what type of operator they are).

Methods inherited from class java.lang.Object

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

Methods inherited from interface se.liu.ida.hefquin.mappings.algebra.MappingOperator

evaluate, getSchema, isValid, isValidInput, visit

Field Details

id

protected final int id

Constructor Details

BaseForMappingOperator

protected BaseForMappingOperator()

Method Details

getID

public int getID()

Description copied from interface: MappingOperator

Returns an identifier of this operator, which should be distinct from the identifiers of all other operators within the same plan (no matter what type of operator they are).

Specified by:

getID in interface MappingOperator