Uses of Class com.fasterxml.jackson.annotation.ObjectIdGenerator (Jackson-annotations 2.0.0 API)
Date: 2012-03-26

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## Uses of Class
com.fasterxml.jackson.annotation.ObjectIdGenerator

Uses of ObjectIdGenerator in com.fasterxml.jackson.annotation

Subclasses of ObjectIdGenerator in com.fasterxml.jackson.annotation
`static class` | `ObjectIdGenerators.IntSequenceGenerator` Simple sequence-number based generator, which uses basic Java `int`s (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 class` | `ObjectIdGenerators.UUIDGenerator` Implementation that just uses `UUID`s as reliably unique identifiers: downside is that resulting String is 36 characters long.

Methods in com.fasterxml.jackson.annotation that return ObjectIdGenerator
`ObjectIdGenerator<Integer>` | `ObjectIdGenerators.IntSequenceGenerator.forScope(Class<?> scope)`
`ObjectIdGenerator<UUID>` | `ObjectIdGenerators.UUIDGenerator.forScope(Class<?> scope)` Can just return base instance since this is essentially scopeless
`abstract ObjectIdGenerator<T>` | `ObjectIdGenerator.forScope(Class<?> scope)` Factory method to create a blueprint instance for specified scope.
`ObjectIdGenerator<Integer>` | `ObjectIdGenerators.IntSequenceGenerator.newForSerialization(Object context)`
`ObjectIdGenerator<UUID>` | `ObjectIdGenerators.UUIDGenerator.newForSerialization(Object context)` Can just return base instance since this is essentially scopeless
`abstract ObjectIdGenerator<T>` | `ObjectIdGenerator.newForSerialization(Object context)` Factory method called to create a new instance to use for serialization: needed since generators may have state (next id to produce).

Methods in com.fasterxml.jackson.annotation with parameters of type ObjectIdGenerator
`boolean` | `ObjectIdGenerators.UUIDGenerator.canUseFor(ObjectIdGenerator<?> gen)` Since UUIDs are always unique, let's fully ignore scope definition
`abstract boolean` | `ObjectIdGenerator.canUseFor(ObjectIdGenerator<?> gen)` Method called to check whether this generator instance can be used for Object Ids of specific generator type and scope; determination is based by passing a configured "blueprint" (prototype) instance; from which the actual instances are created (using `newForSerialization(java.lang.Object)`).

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