jhomenet.dao.hibernate
Class GenericHibernateDAO<T,ID extends java.io.Serializable>

java.lang.Object
  jhomenet.dao.hibernate.GenericHibernateDAO<T,ID>

All Implemented Interfaces:

GenericDAO<T,ID>

Direct Known Subclasses:

HardwareDataDAOHibernate

public class GenericHibernateDAO<T,ID extends java.io.Serializable>
extends java.lang.Object
implements GenericDAO<T,ID>

Implements the generic CRUD data access operations using Hibernate APIs.

To write a DAO, subclass and parameterize this class with your persistent class. Of course, assuming that you have a traditional 1:1 appraoch for Entity:DAO design.

You have to inject the Class object of the persistent class and a current Hibernate Session to construct a DAO.

Author:

christian.bauer@jboss.com

See Also:

HibernateDAOFactory

Constructor Summary

GenericHibernateDAO(java.lang.Class<T> persistentClass, Session session)
Default constructor.

Method Summary

java.util.List<T>	findAll()
protected java.util.List<T>	findByCriteria(Criterion... criterion) Use this inside subclasses as a convenience method.
java.util.List<T>	findByExample(T exampleInstance)
T	findById(ID id, boolean lock)
java.lang.Class<T>	getPersistentClass()
protected Session	getSession() Get the current Hibernate session.
T	makePersistent(T entity)
void	makeTransient(T entity)

Methods inherited from class java.lang.Object

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

Constructor Detail

GenericHibernateDAO

public GenericHibernateDAO(java.lang.Class<T> persistentClass,
                           Session session)

Default constructor.

Parameters:

persistentClass -

session -

Method Detail

getSession

protected Session getSession()

Get the current Hibernate session.

Returns:

A reference to the Hibernate session

getPersistentClass

public java.lang.Class<T> getPersistentClass()

findById

public T findById(ID id,
                  boolean lock)

Specified by:

findById in interface GenericDAO<T,ID extends java.io.Serializable>

findAll

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

Specified by:

findAll in interface GenericDAO<T,ID extends java.io.Serializable>

findByExample

public java.util.List<T> findByExample(T exampleInstance)

Specified by:

findByExample in interface GenericDAO<T,ID extends java.io.Serializable>

makePersistent

public T makePersistent(T entity)

Specified by:

makePersistent in interface GenericDAO<T,ID extends java.io.Serializable>

makeTransient

public void makeTransient(T entity)

Specified by:

makeTransient in interface GenericDAO<T,ID extends java.io.Serializable>

findByCriteria

protected java.util.List<T> findByCriteria(Criterion... criterion)

Use this inside subclasses as a convenience method.