org.qi4j.spi.entitystore
Class DefaultEntityStoreUnitOfWork

java.lang.Object
  org.qi4j.spi.entitystore.DefaultEntityStoreUnitOfWork

All Implemented Interfaces:

EntityStoreUnitOfWork

public final class DefaultEntityStoreUnitOfWork
extends java.lang.Object
implements EntityStoreUnitOfWork

Default EntityStore UnitOfWork.

Constructor Summary

DefaultEntityStoreUnitOfWork(EntityStoreSPI entityStoreSPI, java.lang.String identity, Module module, Usecase usecase, long currentTime)

Method Summary

StateCommitter	applyChanges()
long	currentTime()
void	discard()
EntityState	entityStateOf(EntityReference anIdentity) Get the EntityState for a given identity.
java.lang.String	identity()
Module	module()
EntityState	newEntityState(EntityReference anIdentity, EntityDescriptor descriptor) Create new EntityState for a given identity.
Usecase	usecase()

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultEntityStoreUnitOfWork

public DefaultEntityStoreUnitOfWork(EntityStoreSPI entityStoreSPI,
                                    java.lang.String identity,
                                    Module module,
                                    Usecase usecase,
                                    long currentTime)

Method Detail

identity

public java.lang.String identity()

Specified by:

identity in interface EntityStoreUnitOfWork

module

public Module module()

currentTime

public long currentTime()

Specified by:

currentTime in interface EntityStoreUnitOfWork

usecase

public Usecase usecase()

newEntityState

public EntityState newEntityState(EntityReference anIdentity,
                                  EntityDescriptor descriptor)
                           throws EntityStoreException

Description copied from interface: EntityStoreUnitOfWork

Create new EntityState for a given identity.

This should only create the EntityState and not insert it into any database, since that should occur during the EntityStoreUnitOfWork.applyChanges() call.

Specified by:

newEntityState in interface EntityStoreUnitOfWork

Parameters:

anIdentity - the identity of the entity

descriptor - entity descriptor

Returns:

The new entity state.

Throws:

EntityStoreException - Thrown if creational fails.

entityStateOf

public EntityState entityStateOf(EntityReference anIdentity)
                          throws EntityStoreException,
                                 EntityNotFoundException

Description copied from interface: EntityStoreUnitOfWork

Get the EntityState for a given identity. Throws EntityNotFoundException if the entity with given anIdentity is not found.

Specified by:

entityStateOf in interface EntityStoreUnitOfWork

Parameters:

anIdentity - The entity identity. This argument must not be null.

Returns:

Entity state given the composite descriptor and identity.

Throws:

EntityStoreException - thrown if retrieval failed.

EntityNotFoundException - if requested entity does not exist

applyChanges

public StateCommitter applyChanges()
                            throws EntityStoreException

Specified by:

applyChanges in interface EntityStoreUnitOfWork

Throws:

EntityStoreException

discard

public void discard()

Specified by:

discard in interface EntityStoreUnitOfWork