Package hydra.core

Class Projection

java.lang.Object

hydra.core.Projection

All Implemented Interfaces:

Serializable, Comparable<Projection>

public class Projection
extends Object
implements Serializable, Comparable<Projection>

A record elimination; a projection

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
final Name	field	The name of the projected field
static final Name	FIELD
static final Name	TYPE_
static final Name	TYPE_NAME
final Name	typeName	The name of the record type

Constructor Summary

Constructors

Constructor	Description
Projection(Name typeName, Name field)

Method Summary

Modifier and Type	Method	Description
int	compareTo(Projection other)
boolean	equals(Object other)
int	hashCode()
Projection	withField(Name field)
Projection	withTypeName(Name typeName)

Methods inherited from class java.lang.Object

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

Field Details

TYPE_

public static final Name TYPE_

TYPE_NAME

public static final Name TYPE_NAME

FIELD

public static final Name FIELD

typeName

public final Name typeName

The name of the record type

field

public final Name field

The name of the projected field

Constructor Details

Projection

public Projection(Name typeName,
 Name field)

Method Details

equals

public boolean equals(Object other)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

compareTo

public int compareTo(Projection other)

Specified by:

compareTo in interface Comparable<Projection>

withTypeName

public Projection withTypeName(Name typeName)

withField

public Projection withField(Name field)