fr.inria.atlanmod.neoemf.core

Interface Id

All Superinterfaces:

Comparable<Id>, Serializable

All Known Implementing Classes:

LongId, UndefinedId

@Immutable
 @ParametersAreNonnullByDefault
public interface Id
extends Comparable<Id>, Serializable

An identifier used to identify PersistentEObjects in datastores.

This is the primary key in datastores, so, each Id must be unique at DataMapper level to ensure data consistency. The unicity is not guaranteed before adding a new PersistentEObject to a database.

Field Summary

Fields

Modifier and Type	Field and Description
static Id	UNDEFINED An immutable undefined Id.

Method Summary

Modifier and Type	Method and Description
static IdProvider	getProvider() Returns the instance of the default IdProvider.
String	toHexString() Returns the String representation of this Id, as an hexadecimal value.
long	toLong() Returns the Long representation of this Id.

Methods inherited from interface java.lang.Comparable

compareTo

Field Detail

UNDEFINED

@Nonnull
static final Id UNDEFINED

An immutable undefined Id.

Method Detail

getProvider

@Nonnull
static IdProvider getProvider()

Returns the instance of the default IdProvider.

Returns:

the instance

toLong

long toLong()

Returns the Long representation of this Id.

Returns:

a long

toHexString

@Nonnull
String toHexString()

Returns the String representation of this Id, as an hexadecimal value.

Returns:

a hexadecimal string