org.apache.calcite.rel.core

Class CorrelationId

java.lang.Object

org.apache.calcite.rel.core.CorrelationId

All Implemented Interfaces:

Cloneable, Comparable<CorrelationId>

public class CorrelationId
extends Object
implements Cloneable, Comparable<CorrelationId>

Describes the necessary parameters for an implementation in order to identify and set dynamic variables

Constructor Summary

Constructors

Constructor and Description
CorrelationId(int id) Creates a correlation identifier.
CorrelationId(String name) Creates a correlation identifier.

Method Summary

Methods

Modifier and Type	Method and Description
int	compareTo(CorrelationId other)
boolean	equals(Object obj)
int	getId() Returns the identifier.
String	getName() Returns the preffered name of the variable.
int	hashCode()
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

CorrelationId

public CorrelationId(int id)

Creates a correlation identifier. This is a type-safe wrapper over int.

Parameters:

id - Identifier

CorrelationId

public CorrelationId(String name)

Creates a correlation identifier. This is a type-safe wrapper over int.

Parameters:

name - variable name

Method Detail

getId

public int getId()

Returns the identifier.

Returns:

identifier

getName

public String getName()

Returns the preffered name of the variable.

Returns:

name

toString

public String toString()

Overrides:

toString in class Object

compareTo

public int compareTo(CorrelationId other)

Specified by:

compareTo in interface Comparable<CorrelationId>

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object