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:

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

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

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.SingleIdEntityLoaderSupport

sessionFactory

Constructor Summary

Constructors

Constructor	Description
EntityBatchLoaderArrayParam(int domainBatchSize, EntityMappingType entityDescriptor, LoadQueryInfluencers loadQueryInfluencers)	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.
protected void	initializeEntities(Object[] idsToInitialize, Object id, Object entityInstance, LockOptions lockOptions, Boolean readOnly, SharedSessionContractImplementor session)
T	load(Object pkValue, LockOptions lockOptions, Boolean readOnly, SharedSessionContractImplementor session)	Load by primary key value
protected Object[]	resolveIdsToInitialize(Object pkValue, SharedSessionContractImplementor session)
String	toString()

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

load, 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,
                                   LoadQueryInfluencers loadQueryInfluencers)

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

resolveIdsToInitialize

protected Object[] resolveIdsToInitialize(Object pkValue,
                                          SharedSessionContractImplementor session)

Specified by:

resolveIdsToInitialize in class AbstractEntityBatchLoader<T>

initializeEntities

protected void initializeEntities(Object[] idsToInitialize,
                                  Object id,
                                  Object entityInstance,
                                  LockOptions lockOptions,
                                  Boolean readOnly,
                                  SharedSessionContractImplementor session)

Specified by:

initializeEntities in class AbstractEntityBatchLoader<T>

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>

toString

public String toString()

Overrides:

toString in class Object