Package org.hibernate.usertype.internal

Class AbstractTimeZoneStorageCompositeUserType<T>

java.lang.Object

org.hibernate.usertype.internal.AbstractTimeZoneStorageCompositeUserType<T>

All Implemented Interfaces:

EmbeddableInstantiator, Instantiator, CompositeUserType<T>

Direct Known Subclasses:

OffsetDateTimeCompositeUserType, OffsetTimeCompositeUserType, ZonedDateTimeCompositeUserType

public abstract class AbstractTimeZoneStorageCompositeUserType<T>
extends Object
implements CompositeUserType<T>

Author:

Christian Beikov

Field Summary

Fields

Modifier and Type	Field	Description
static final String	INSTANT_NAME
static final String	ZONE_OFFSET_NAME

Constructor Summary

Constructors

Constructor	Description
AbstractTimeZoneStorageCompositeUserType()

Method Summary

Modifier and Type	Method	Description
T	assemble(Serializable cached, Object owner)	Reconstruct an object from the cacheable representation.
T	deepCopy(T value)	Return a deep copy of the persistent state, stopping at entities and at collections.
Serializable	disassemble(T value)	Transform the object into its cacheable representation.
boolean	equals(T x, T y)	Compare two instances of the class mapped by this type for persistence "equality".
int	hashCode(T x)	Get a hashcode for the instance, consistent with persistence "equality"
boolean	isMutable()	Are objects of this type mutable?
T	replace(T detached, T managed, Object owner)	During merge, replace the existing (target) value in the entity we are merging to with a new (original) value from the detached entity we are merging.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.usertype.CompositeUserType

embeddable, getPropertyValue, instantiate, isInstance, isSameClass, returnedClass

Field Details

INSTANT_NAME

public static final String INSTANT_NAME

See Also:

• Constant Field Values

ZONE_OFFSET_NAME

public static final String ZONE_OFFSET_NAME

See Also:

• Constant Field Values

Constructor Details

AbstractTimeZoneStorageCompositeUserType

public AbstractTimeZoneStorageCompositeUserType()

Method Details

equals

public boolean equals(T x,
 T y)

Description copied from interface: CompositeUserType

Compare two instances of the class mapped by this type for persistence "equality". Equality of the persistent state.

Specified by:

equals in interface CompositeUserType<T>

hashCode

public int hashCode(T x)

Description copied from interface: CompositeUserType

Get a hashcode for the instance, consistent with persistence "equality"

Specified by:

hashCode in interface CompositeUserType<T>

deepCopy

public T deepCopy(T value)

Description copied from interface: CompositeUserType

Return a deep copy of the persistent state, stopping at entities and at collections. It is not necessary to copy immutable objects, or null values, in which case it is safe to simply return the argument.

Specified by:

deepCopy in interface CompositeUserType<T>

Parameters:

value - the object to be cloned, which may be null

Returns:

Object a copy

isMutable

public boolean isMutable()

Description copied from interface: CompositeUserType

Are objects of this type mutable?

Specified by:

isMutable in interface CompositeUserType<T>

Returns:

boolean

disassemble

public Serializable disassemble(T value)

Description copied from interface: CompositeUserType

Transform the object into its cacheable representation. At the very least this method should perform a deep copy if the type is mutable. That may not be enough for some implementations, however; for example, associations must be cached as identifier values. (optional operation)

Specified by:

disassemble in interface CompositeUserType<T>

Parameters:

value - the object to be cached

Returns:

a cacheable representation of the object

assemble

public T assemble(Serializable cached,
 Object owner)

Description copied from interface: CompositeUserType

Reconstruct an object from the cacheable representation. At the very least this method should perform a deep copy if the type is mutable. (optional operation)

Specified by:

assemble in interface CompositeUserType<T>

Parameters:

cached - the object to be cached

owner - the owner of the cached object

Returns:

a reconstructed object from the cacheable representation

replace

public T replace(T detached,
 T managed,
 Object owner)

Description copied from interface: CompositeUserType

During merge, replace the existing (target) value in the entity we are merging to with a new (original) value from the detached entity we are merging. For immutable objects, or null values, it is safe to simply return the first parameter. For mutable objects, it is safe to return a copy of the first parameter. For objects with component values, it might make sense to recursively replace component values.

Specified by:

replace in interface CompositeUserType<T>

Parameters:

detached - the value from the detached entity being merged

managed - the value in the managed entity

Returns:

the value to be merged