Module com.fasterxml.jackson.annotation

Package com.fasterxml.jackson.annotation

Class ObjectIdGenerators

java.lang.Object

com.fasterxml.jackson.annotation.ObjectIdGenerators

public class ObjectIdGenerators
extends Object

Container class for standard ObjectIdGenerator implementations:

• ObjectIdGenerators.IntSequenceGenerator
• ObjectIdGenerators.PropertyGenerator
• ObjectIdGenerators.StringIdGenerator
• ObjectIdGenerators.UUIDGenerator

NOTE: ObjectIdGenerators.PropertyGenerator applicability is limited in one case: it can only be used on polymorphic base types (ones indicated using JsonTypeInfo or default typing) via class annotations: property annotation will fail due to lack of access to property, needed to determine type of Object Id for deserialization. This limitation may be lifted in future versions but it is the limitation at least up to and including Jackson 2.9.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static final class	ObjectIdGenerators.IntSequenceGenerator	Simple sequence-number based generator, which uses basic Java ints (starting with value 1) as Object Identifiers.
static class	ObjectIdGenerators.None	Abstract marker class used to allow explicitly specifying that no generator is used; which also implies that no Object Id is to be included or used.
static class	ObjectIdGenerators.PropertyGenerator	Abstract place-holder class which is used to denote case where Object Identifier to use comes from a POJO property (getter method or field).
static final class	ObjectIdGenerators.StringIdGenerator	Implementation that will accept arbitrary (but unique) String Ids on deserialization, and (by default) use random UUID generation similar to ObjectIdGenerators.UUIDGenerator for generation ids.
static final class	ObjectIdGenerators.UUIDGenerator	Implementation that just uses UUIDs as reliably unique identifiers: downside is that resulting String is 36 characters long.

Constructor Summary

Constructors

Constructor	Description
ObjectIdGenerators()

Method Summary

Methods inherited from class java.lang.Object

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

Constructor Details

ObjectIdGenerators

public ObjectIdGenerators()