com.helger.commons.id

Interface IIDProvider<VALUETYPE,IDTYPE>

Type Parameters:

VALUETYPE - Object type

IDTYPE - Key type

All Superinterfaces:

Serializable

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface IIDProvider<VALUETYPE,IDTYPE>
extends Serializable

Interface for objects having an ID.

Author:

Philip Helger

Method Summary

Modifier and Type	Method and Description
static <VALUETYPE extends IHasID<IDTYPE>,IDTYPE> IIDProvider<VALUETYPE,IDTYPE>	createHasID()
IDTYPE	getID(VALUETYPE aObject) Get the ID of the passed object.

Method Detail

getID

@Nonnull
IDTYPE getID(@Nonnull
                       VALUETYPE aObject)

Get the ID of the passed object.

Parameters:

aObject - The object who's ID is to be retrieved. May not be null .

Returns:

The ID of the object. May not be null.

createHasID

@Nonnull
static <VALUETYPE extends IHasID<IDTYPE>,IDTYPE> IIDProvider<VALUETYPE,IDTYPE> createHasID()