nl.gridshore.samples.training.dataaccess.jpa
Class BaseDaoJpa<T extends nl.gridshore.samples.training.domain.BaseDomain>

java.lang.Object
  nl.gridshore.samples.training.dataaccess.jpa.BaseDaoJpa<T>

All Implemented Interfaces:

BaseDao<T>

Direct Known Subclasses:

EmployeeDaoJpa, ProjectDaoJpa, TrainingDaoJpa

public class BaseDaoJpa<T extends nl.gridshore.samples.training.domain.BaseDomain>
extends java.lang.Object
implements BaseDao<T>

Created by IntelliJ IDEA. User: jettro Date: Jan 20, 2008 Time: 5:03:11 PM Standard implementation for the base interface data access objects

Constructor Summary

BaseDaoJpa(java.lang.Class<T> prototype, java.lang.String entityName)

Method Summary

void	delete(T entity) Removes the provided item from the persistent storage
javax.persistence.EntityManager	getEntityManager()
java.util.List<T>	loadAll() Returns list of all objects
T	loadById(java.lang.Long entityId) Load the object belonging to the specified type
protected T	newPrototype(java.lang.Class<T> cl)
T	save(T entity) Store an existing entity

Methods inherited from class java.lang.Object

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

Constructor Detail

BaseDaoJpa

public BaseDaoJpa(java.lang.Class<T> prototype,
                  java.lang.String entityName)

Method Detail

save

public T save(T entity)

Description copied from interface: BaseDao

Store an existing entity

Specified by:

save in interface BaseDao<T extends nl.gridshore.samples.training.domain.BaseDomain>

Parameters:

entity - Object to store

Returns:

Reference to the stored object.

loadById

public T loadById(java.lang.Long entityId)
                                                                   throws org.springframework.orm.ObjectRetrievalFailureException

Description copied from interface: BaseDao

Load the object belonging to the specified type

Specified by:

loadById in interface BaseDao<T extends nl.gridshore.samples.training.domain.BaseDomain>

Parameters:

entityId - Long representing the type of the object to load

Returns:

Object found belonging to the specified type

Throws:

org.springframework.orm.ObjectRetrievalFailureException - if the entity for id does not exist

loadAll

public java.util.List<T> loadAll()

Description copied from interface: BaseDao

Returns list of all objects

Specified by:

loadAll in interface BaseDao<T extends nl.gridshore.samples.training.domain.BaseDomain>

Returns:

List of all available objects

delete

public void delete(T entity)

Description copied from interface: BaseDao

Removes the provided item from the persistent storage

Specified by:

delete in interface BaseDao<T extends nl.gridshore.samples.training.domain.BaseDomain>

Parameters:

entity - Entity to remove from persistent storage

newPrototype

protected final T newPrototype(java.lang.Class<T> cl)
                                                                                throws java.lang.IllegalArgumentException

Throws:

java.lang.IllegalArgumentException

getEntityManager

public javax.persistence.EntityManager getEntityManager()