uk.ac.soton.itinnovation.grid.service.sla.dao
Class GenericHibernateDAO<T,ID extends Serializable>

java.lang.Object
  uk.ac.soton.itinnovation.grid.service.sla.dao.GenericHibernateDAO<T,ID>

All Implemented Interfaces:

GenericDAO<T,ID>

Direct Known Subclasses:

ActivityDAOImpl, ResourcePoolDAOImpl, ResourceWithUsageByMetricDAOImpl, SlaDAOImpl, SLATemplateDAOImpl, UsageSummaryDAOImpl, UsageSummaryElementDAOImpl

public abstract class GenericHibernateDAO<T,ID extends Serializable>
extends Object
implements GenericDAO<T,ID>

Constructor Summary

GenericHibernateDAO()

Method Summary

void	delete(T entity) Delete an entity.
List<T>	findAll() Find all entities
protected List<T>	findByCriteria(org.hibernate.criterion.Criterion... criterion)
T	findById(ID id) Find the entity identified by id
T	findById(ID id, boolean lock) Find the entity identified by id and optionally acquire a pessimistic lock on the entity.
Class<T>	getPersistentClass()
void	saveOrUpdate(T entity) Save or update entity

Methods inherited from class java.lang.Object

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

Constructor Detail

GenericHibernateDAO

public GenericHibernateDAO()

Method Detail

getPersistentClass

public Class<T> getPersistentClass()

findById

public T findById(ID id)

Description copied from interface: GenericDAO

Find the entity identified by id

Specified by:

findById in interface GenericDAO<T,ID extends Serializable>

Parameters:

id - the identity property of the entity

Returns:

the entity or null

findById

public T findById(ID id,
                  boolean lock)

Description copied from interface: GenericDAO

Find the entity identified by id and optionally acquire a pessimistic lock on the entity.

Specified by:

findById in interface GenericDAO<T,ID extends Serializable>

Parameters:

id - the unique id for the entity

lock - whether or not to obtain a pessimistic lock

Returns:

the entity or null if it does not exist

findAll

public List<T> findAll()

Description copied from interface: GenericDAO

Find all entities

Specified by:

findAll in interface GenericDAO<T,ID extends Serializable>

Returns:

List of all entities

saveOrUpdate

public void saveOrUpdate(T entity)

Description copied from interface: GenericDAO

Save or update entity

Specified by:

saveOrUpdate in interface GenericDAO<T,ID extends Serializable>

Parameters:

entity - the entity to save or update

delete

public void delete(T entity)

Description copied from interface: GenericDAO

Delete an entity. The entity is passes as a parameter (rather than the id of the entity) because the hibernate delete API is like this.

Specified by:

delete in interface GenericDAO<T,ID extends Serializable>

Parameters:

entity - the entity to delete

findByCriteria

protected List<T> findByCriteria(org.hibernate.criterion.Criterion... criterion)