Package org.hibernate.loader.internal

Class IdentifierLoadAccessImpl<T>

java.lang.Object

org.hibernate.loader.internal.IdentifierLoadAccessImpl<T>

All Implemented Interfaces:

IdentifierLoadAccess<T>, JavaType.CoercionContext

public class IdentifierLoadAccessImpl<T>
extends Object
implements IdentifierLoadAccess<T>, JavaType.CoercionContext

Standard implementation of load-by-id

Constructor Summary

Constructors

Constructor	Description
IdentifierLoadAccessImpl(LoadAccessContext context, EntityPersister entityPersister)

Method Summary

Modifier and Type	Method	Description
protected T	doGetReference(Object id)
protected T	doLoad(Object id)
T	getReference(Object id)	Return the persistent instance with the given identifier, assuming that the instance exists.
TypeConfiguration	getTypeConfiguration()
T	load(Object id)	Return the persistent instance with the given identifier, or null if there is no such persistent instance.
Optional<T>	loadOptional(Object id)	Same semantic as IdentifierLoadAccess.load(java.lang.Object) except that here Optional is returned to handle nullability.
protected T	perform(Supplier<T> executor)
IdentifierLoadAccess<T>	with(CacheMode cacheMode)	Specify the CacheMode to use when retrieving the entity.
IdentifierLoadAccess<T>	with(RootGraph<T> graph, GraphSemantic semantic)
IdentifierLoadAccessImpl<T>	with(LockOptions lockOptions)	Specify the LockOptions to use when retrieving the entity.
IdentifierLoadAccess<T>	withReadOnly(boolean readOnly)	Specify whether the entity should be loaded in read-only mode.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.IdentifierLoadAccess

with

Constructor Detail

IdentifierLoadAccessImpl

public IdentifierLoadAccessImpl(LoadAccessContext context,
                                EntityPersister entityPersister)

Method Detail

with

public final IdentifierLoadAccessImpl<T> with(LockOptions lockOptions)

Description copied from interface: IdentifierLoadAccess

Specify the LockOptions to use when retrieving the entity.

Specified by:

with in interface IdentifierLoadAccess<T>

Parameters:

lockOptions - The lock options to use.

Returns:

this, for method chaining

with

public IdentifierLoadAccess<T> with(CacheMode cacheMode)

Description copied from interface: IdentifierLoadAccess

Specify the CacheMode to use when retrieving the entity.

Specified by:

with in interface IdentifierLoadAccess<T>

Parameters:

cacheMode - The CacheMode to use.

Returns:

this, for method chaining

withReadOnly

public IdentifierLoadAccess<T> withReadOnly(boolean readOnly)

Description copied from interface: IdentifierLoadAccess

Specify whether the entity should be loaded in read-only mode.

Specified by:

withReadOnly in interface IdentifierLoadAccess<T>

See Also:

Session.setDefaultReadOnly(boolean)

with

public IdentifierLoadAccess<T> with(RootGraph<T> graph,
                                    GraphSemantic semantic)

Specified by:

with in interface IdentifierLoadAccess<T>

getReference

public final T getReference(Object id)

Description copied from interface: IdentifierLoadAccess

Return the persistent instance with the given identifier, assuming that the instance exists. This method might return a proxied instance that is initialized on-demand, when a non-identifier method is accessed.

You should not use this method to determine if an instance exists; to check for existence, use IdentifierLoadAccess.load(java.lang.Object) instead. Use this only to retrieve an instance that you assume exists, where non-existence would be an actual error.

Specified by:

getReference in interface IdentifierLoadAccess<T>

Parameters:

id - The identifier for which to obtain a reference

Returns:

the persistent instance or proxy

perform

protected T perform(Supplier<T> executor)

doGetReference

protected T doGetReference(Object id)

load

public final T load(Object id)

Description copied from interface: IdentifierLoadAccess

Return the persistent instance with the given identifier, or null if there is no such persistent instance. If the instance is already associated with the session, return that instance, initializing it if needed. This method never returns an uninitialized instance.

Specified by:

load in interface IdentifierLoadAccess<T>

Parameters:

id - The identifier

Returns:

The persistent instance or null

loadOptional

public Optional<T> loadOptional(Object id)

Description copied from interface: IdentifierLoadAccess

Same semantic as IdentifierLoadAccess.load(java.lang.Object) except that here Optional is returned to handle nullability.

Specified by:

loadOptional in interface IdentifierLoadAccess<T>

Parameters:

id - The identifier

Returns:

The persistent instance, if one, wrapped in Optional

doLoad

protected final T doLoad(Object id)

getTypeConfiguration

public TypeConfiguration getTypeConfiguration()

Specified by:

getTypeConfiguration in interface JavaType.CoercionContext