Package org.hibernate.engine.spi
Class EntityKey
java.lang.Object
org.hibernate.engine.spi.EntityKey
- All Implemented Interfaces:
Serializable
Uniquely identifies of an entity instance in a particular Session by identifier.
Note that it's only safe to be used within the scope of a Session: it doesn't consider for example the tenantId
as part of the equality definition.
Information used to determine uniqueness consists of the entity-name and the identifier value (see equals(java.lang.Object)
).
Performance considerations: lots of instances of this type are created at runtime. Make sure each one is as small as possible by storing just the essential needed.
- See Also:
-
Constructor Summary
ConstructorsConstructorDescriptionEntityKey
(@Nullable Object id, EntityPersister persister) Construct a unique identifier for an entity class instance. -
Method Summary
Modifier and TypeMethodDescriptionstatic EntityKey
deserialize
(ObjectInputStream ois, SessionFactoryImplementor sessionFactory) Custom deserialization routine used during deserialization of a Session/PersistenceContext for increased performance.boolean
int
hashCode()
boolean
isBatchLoadable
(LoadQueryInfluencers influencers) void
Custom serialization routine used during serialization of a Session/PersistenceContext for increased performance.toString()
-
Constructor Details
-
EntityKey
Construct a unique identifier for an entity class instance.- Parameters:
id
- The entity idpersister
- The entity persister- API Note:
- This signature has changed to accommodate both entity mode and multi-tenancy, both of which relate to
the session to which this key belongs. To help minimize the impact of these changes in the future, the
SharedSessionContractImplementor.generateEntityKey(java.lang.Object, org.hibernate.persister.entity.EntityPersister)
method was added to hide the session-specific changes.
-
-
Method Details
-
isBatchLoadable
-
getIdentifierValue
-
getIdentifier
-
getEntityName
-
getPersister
-
equals
-
hashCode
public int hashCode() -
toString
-
serialize
Custom serialization routine used during serialization of a Session/PersistenceContext for increased performance.- Parameters:
oos
- The stream to which we should write the serial data.- Throws:
IOException
- Thrown by Java I/O
-
deserialize
public static EntityKey deserialize(ObjectInputStream ois, SessionFactoryImplementor sessionFactory) throws IOException, ClassNotFoundException Custom deserialization routine used during deserialization of a Session/PersistenceContext for increased performance.- Parameters:
ois
- The stream from which to read the entry.sessionFactory
- The SessionFactory owning the Session being deserialized.- Returns:
- The deserialized EntityEntry
- Throws:
IOException
- Thrown by Java I/OClassNotFoundException
- Thrown by Java I/O
-