net.sf.derquinsej.hib3
Class GeneralDAOImpl

java.lang.Object
  net.sf.derquinsej.hib3.AbstractDAOImpl
      net.sf.derquinsej.hib3.GeneralDAOImpl

All Implemented Interfaces:

DAO, GeneralDAO

Direct Known Subclasses:

RepositoryImpl

public class GeneralDAOImpl
extends AbstractDAOImpl
implements GeneralDAO

Implementation of the General DAO.

Author:

Andres Rodriguez

Constructor Summary

GeneralDAOImpl()
Constructs the DAO

GeneralDAOImpl(org.hibernate.SessionFactory sessionFactory)
Constructs the DAO

Method Summary

void	delete(Object entity) Deletes an entity instance.
<T> void	deleteById(Class<T> type, Serializable id) Deletes an entity instance.
<T> List<T>	findAll(Class<T> type) Returns all entities of the persistent type.
protected <T> List<T>	findByCriteria(Class<T> type, org.hibernate.criterion.Criterion... criterion) Returns the list of entity instances that matches the provided crtieria.
<T> T	findById(Class<T> type, Serializable id, boolean lock) Finds an entity by ID.
protected org.hibernate.Criteria	newCriteria(Class<?> type) Returns a new criteria object.
void	save(Object entity) Saves an entity.
void	saveOrUpdate(Object entity) Saves or updates an entity, depending upon resolution of the unsaved-value checks.
void	update(Object entity) Updates an entity.

Methods inherited from class net.sf.derquinsej.hib3.AbstractDAOImpl

clear, evict, first, flush, getNamedQuery, getSession, list, list, setSessionFactory, sync, unique, unique

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.derquinsej.hib3.DAO

clear, flush, sync

Constructor Detail

GeneralDAOImpl

public GeneralDAOImpl(org.hibernate.SessionFactory sessionFactory)

Constructs the DAO

Parameters:

sessionFactory - Hibernate Session factory.

GeneralDAOImpl

public GeneralDAOImpl()

Constructs the DAO

Method Detail

newCriteria

protected final org.hibernate.Criteria newCriteria(Class<?> type)

Returns a new criteria object.

Parameters:

type - Entity type.

Returns:

A new criteria object.

findByCriteria

protected final <T> List<T> findByCriteria(Class<T> type,
                                           org.hibernate.criterion.Criterion... criterion)

Returns the list of entity instances that matches the provided crtieria.

Parameters:

type - Entity type.

criterion - Search criteria.

Returns:

The results.

delete

public void delete(Object entity)

Description copied from interface: GeneralDAO

Deletes an entity instance.

Specified by:

delete in interface GeneralDAO

Parameters:

entity - Instance to delete.

deleteById

public <T> void deleteById(Class<T> type,
                           Serializable id)

Description copied from interface: GeneralDAO

Deletes an entity instance.

Specified by:

deleteById in interface GeneralDAO

Parameters:

type - Entity type.

id - Id of the instance to delete.

findAll

public <T> List<T> findAll(Class<T> type)

Description copied from interface: GeneralDAO

Returns all entities of the persistent type.

Specified by:

findAll in interface GeneralDAO

Parameters:

type - Entity type.

Returns:

A list with all the instances.

findById

public <T> T findById(Class<T> type,
                      Serializable id,
                      boolean lock)

Description copied from interface: GeneralDAO

Finds an entity by ID.

Specified by:

findById in interface GeneralDAO

Parameters:

type - Entity type.

id - ID.

lock - If the entity shall be locked.

Returns:

The requested entity or null if it is not found.

save

public void save(Object entity)

Description copied from interface: GeneralDAO

Saves an entity.

Specified by:

save in interface GeneralDAO

Parameters:

entity - Entity to save.

saveOrUpdate

public void saveOrUpdate(Object entity)

Description copied from interface: GeneralDAO

Saves or updates an entity, depending upon resolution of the unsaved-value checks.

Specified by:

saveOrUpdate in interface GeneralDAO

Parameters:

entity - Entity to persist.

update

public void update(Object entity)

Description copied from interface: GeneralDAO

Updates an entity.

Specified by:

update in interface GeneralDAO

Parameters:

entity - Entity to update.