Package org.hibernate.engine.spi

Class EntityUniqueKey

java.lang.Object

org.hibernate.engine.spi.EntityUniqueKey

All Implemented Interfaces:

Serializable

public class EntityUniqueKey
extends Object
implements Serializable

Used to uniquely key an entity instance in relation to a particular session by some unique property reference, as opposed to identifier.

Uniqueing information consists of the entity name, the referenced property name, and the referenced property value.

See Also:

• EntityKey
• Serialized Form

Constructor Summary

Constructors

Constructor	Description
EntityUniqueKey(String entityName, String uniqueKeyName, Object key, Type keyType, SessionFactoryImplementor factory)

Method Summary

Modifier and Type	Method	Description
static EntityUniqueKey	deserialize(ObjectInputStream ois, SessionImplementor session)	Custom deserialization routine used during deserialization of a Session/PersistenceContext for increased performance.
boolean	equals(@Nullable Object other)
static int	generateHashCode(String entityName, String uniqueKeyName, Type keyType, Object key, SessionFactoryImplementor factory)
String	getEntityName()
Object	getKey()
String	getUniqueKeyName()
int	hashCode()
void	serialize(ObjectOutputStream oos)	Custom serialization routine used during serialization of a Session/PersistenceContext for increased performance.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

EntityUniqueKey

public EntityUniqueKey(String entityName,
 String uniqueKeyName,
 Object key,
 Type keyType,
 SessionFactoryImplementor factory)

Method Details

getEntityName

public String getEntityName()

getKey

public Object getKey()

getUniqueKeyName

public String getUniqueKeyName()

generateHashCode

public static int generateHashCode(String entityName,
 String uniqueKeyName,
 Type keyType,
 Object key,
 SessionFactoryImplementor factory)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(@Nullable Object other)

Overrides:

equals in class Object

toString

public String toString()

Overrides:

toString in class Object

serialize

public void serialize(ObjectOutputStream oos)
               throws IOException

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

deserialize

public static EntityUniqueKey deserialize(ObjectInputStream ois,
 SessionImplementor session)
                                   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.

session - The session being deserialized.

Returns:

The deserialized EntityEntry

Throws:

IOException

ClassNotFoundException