br.gov.frameworkdemoiselle.template
Class JPACrud<T,I>

java.lang.Object
  br.gov.frameworkdemoiselle.template.JPACrud<T,I>

Type Parameters:

T - bean object type

I - bean id type

All Implemented Interfaces:

Crud<T,I>, Serializable

public class JPACrud<T,I>
extends Object
implements Crud<T,I>

JPA specific implementation for Crud interface.

Author:

SERPRO

See Also:

Crud, Serialized Form

Constructor Summary

JPACrud()

Method Summary

protected javax.persistence.criteria.CriteriaQuery<T>	createCriteriaQuery()
protected javax.persistence.Query	createQuery(String ql)
void	delete(I id)
List<T>	findAll()
protected List<T>	findByCriteriaQuery(javax.persistence.criteria.CriteriaQuery<T> criteriaQuery) Search CriteriaQuery integrated into the context of paging
protected List<T>	findByExample(T example) Retrieves a list of entities based on a single example instance of it.
protected List<T>	findByJPQL(String jpql) Search JPQL integrated into the context of paging
protected Class<T>	getBeanClass()
protected javax.persistence.criteria.CriteriaBuilder	getCriteriaBuilder()
protected javax.persistence.EntityManager	getEntityManager()
protected Pagination	getPagination()
protected void	handleException(Throwable cause)
void	insert(T entity)
T	load(I id)
void	update(T entity)

Methods inherited from class java.lang.Object

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

Constructor Detail

JPACrud

public JPACrud()

Method Detail

getBeanClass

protected Class<T> getBeanClass()

getCriteriaBuilder

protected javax.persistence.criteria.CriteriaBuilder getCriteriaBuilder()

getEntityManager

protected javax.persistence.EntityManager getEntityManager()

getPagination

protected Pagination getPagination()

createCriteriaQuery

protected javax.persistence.criteria.CriteriaQuery<T> createCriteriaQuery()

createQuery

protected javax.persistence.Query createQuery(String ql)

handleException

protected void handleException(Throwable cause)
                        throws Throwable

Throws:

Throwable

insert

public void insert(T entity)

Specified by:

insert in interface Crud<T,I>

delete

public void delete(I id)

Specified by:

delete in interface Crud<T,I>

update

public void update(T entity)

Specified by:

update in interface Crud<T,I>

load

public T load(I id)

Specified by:

load in interface Crud<T,I>

findAll

public List<T> findAll()

Specified by:

findAll in interface Crud<T,I>

findByJPQL

protected List<T> findByJPQL(String jpql)

Search JPQL integrated into the context of paging

Parameters:

jpql - - query in syntax JPQL

Returns:

a list of entities

findByCriteriaQuery

protected List<T> findByCriteriaQuery(javax.persistence.criteria.CriteriaQuery<T> criteriaQuery)

Search CriteriaQuery integrated into the context of paging

Parameters:

criteriaQuery - - structure CriteriaQuery

Returns:

a list of entities

findByExample

protected List<T> findByExample(T example)

Retrieves a list of entities based on a single example instance of it.

See below a sample of its usage:

 Employee example = new Employee();
 example.setId(12345);
 return (List<Employee>) findByExample(example);
 

Parameters:

example - an entity example

Returns:

a list of entities