Package org.hibernate.loader.ast.internal

Class EntityBatchLoaderArrayParam<T>

java.lang.Object

org.hibernate.loader.ast.internal.SingleIdEntityLoaderSupport<T>

org.hibernate.loader.ast.internal.AbstractEntityBatchLoader<T>

org.hibernate.loader.ast.internal.EntityBatchLoaderArrayParam<T>

All Implemented Interfaces:

Preparable, BatchLoader, EntityBatchLoader<T>, EntityLoader, Loader, MultiKeyLoader, SingleEntityLoader<T>, SingleIdEntityLoader<T>, SqlArrayMultiKeyLoader

public class EntityBatchLoaderArrayParam<T>
extends AbstractEntityBatchLoader<T>
implements SqlArrayMultiKeyLoader, Preparable

SingleIdEntityLoaderSupport implementation based on using a single array parameter to pass the entire batch of ids.

Field Summary

Fields inherited from class org.hibernate.loader.ast.internal.AbstractEntityBatchLoader

singleIdLoader

Fields inherited from class org.hibernate.loader.ast.internal.SingleIdEntityLoaderSupport

sessionFactory

Constructor Summary

Constructors

Constructor	Description
EntityBatchLoaderArrayParam(int domainBatchSize, EntityMappingType entityDescriptor, SessionFactoryImplementor sessionFactory)	Instantiates the loader

Method Summary

Modifier and Type	Method	Description
int	getDomainBatchSize()	The total number of loadable references that can be initialized per each load operation.
T	load(Object pkValue, Object entityInstance, LockOptions lockOptions, Boolean readOnly, SharedSessionContractImplementor session)
T	load(Object pkValue, LockOptions lockOptions, Boolean readOnly, SharedSessionContractImplementor session)	Load by primary key value
void	prepare()	Perform the preparation
protected <X> X[]	resolveIdsToInitialize(Object pkValue, SharedSessionContractImplementor session)
String	toString()

Methods inherited from class org.hibernate.loader.ast.internal.AbstractEntityBatchLoader

load

Methods inherited from class org.hibernate.loader.ast.internal.SingleIdEntityLoaderSupport

getLoadable, loadDatabaseSnapshot

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.loader.ast.spi.SingleEntityLoader

getLoadable

Methods inherited from interface org.hibernate.loader.ast.spi.SingleIdEntityLoader

loadDatabaseSnapshot

Constructor Detail

EntityBatchLoaderArrayParam

public EntityBatchLoaderArrayParam(int domainBatchSize,
                                   EntityMappingType entityDescriptor,
                                   SessionFactoryImplementor sessionFactory)

Instantiates the loader

Parameters:

domainBatchSize - The number of domain model parts (up to)

Implementation Note:

We delay initializing the internal SQL AST state until first use. Creating the SQL AST internally relies on the entity's EntityIdentifierMapping. However, we do create the static batch-loader for the entity in the persister constructor and EntityIdentifierMapping is not available at that time. On first use, we know we have it available

Method Detail

getDomainBatchSize

public int getDomainBatchSize()

Description copied from interface: BatchLoader

The total number of loadable references that can be initialized per each load operation.

Specified by:

getDomainBatchSize in interface BatchLoader

load

public final T load(Object pkValue,
                    Object entityInstance,
                    LockOptions lockOptions,
                    Boolean readOnly,
                    SharedSessionContractImplementor session)

Specified by:

load in interface SingleIdEntityLoader<T>

resolveIdsToInitialize

protected <X> X[] resolveIdsToInitialize(Object pkValue,
                                         SharedSessionContractImplementor session)

load

public T load(Object pkValue,
              LockOptions lockOptions,
              Boolean readOnly,
              SharedSessionContractImplementor session)

Description copied from interface: SingleIdEntityLoader

Load by primary key value

Specified by:

load in interface SingleEntityLoader<T>

Specified by:

load in interface SingleIdEntityLoader<T>

prepare

public void prepare()

Description copied from interface: Preparable

Perform the preparation

Specified by:

prepare in interface Preparable

toString

public String toString()

Overrides:

toString in class Object