Gera DAO hibernate

20 de agosto de 2006 4 respostas

zerxxx 20 de agosto de 2006

Fala galera

To com um problema quando gero a minha classe DAO com Hibernate Tools dar um erro no Stateless nao consigo importa.

ja carreguei o ejb3 .jar e nada

Que eu faço????

import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * Home object for domain model class Chrono.
 * @see .Chrono
 * @author Hibernate Tools
 */
@Stateless
public class ChronoHome {

	private static final Log log = LogFactory.getLog(ChronoHome.class);

	@PersistenceContext
	private EntityManager entityManager;

	public void persist(Chrono transientInstance) {
		log.debug("persisting Chrono instance");
		try {
			entityManager.persist(transientInstance);
			log.debug("persist successful");
		} catch (RuntimeException re) {
			log.error("persist failed", re);
			throw re;
		}
	}

	public void remove(Chrono persistentInstance) {
		log.debug("removing Chrono instance");
		try {
			entityManager.remove(persistentInstance);
			log.debug("remove successful");
		} catch (RuntimeException re) {
			log.error("remove failed", re);
			throw re;
		}
	}

	public Chrono merge(Chrono detachedInstance) {
		log.debug("merging Chrono instance");
		try {
			Chrono result = entityManager.merge(detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public Chrono findById(int id) {
		log.debug("getting Chrono instance with id: " + id);
		try {
			Chrono instance = entityManager.find(Chrono.class, id);
			log.debug("get successful");
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}
}

:-o :?: :?:

[color=darkred]Editado pelo moderador para incluir as tags Code[/color]

4 Respostas

plentz 20 de ago. de 2006

Explique melhor o erro que está ocorrendo.

zerxxx 21 de ago. de 2006

Bom to usando o JBoss 1.6 + hibernate tools

No meu projeto

configurei o hibernate

false org.gjt.mm.mysql.Driver teste jdbc:mysql://localhost:3306/chrono root org.hibernate.dialect.MySQLDialect

Depois faço hibernate tools gera minha classe Pojo e minha classe DAO

CLASSE POJO

/ default package
// Generated 21/08/2006 02:19:20 by Hibernate Tools 3.1.0.beta5

import javax.persistence.Column;

import javax.persistence.Entity;

import javax.persistence.Id;

import javax.persistence.Table;

/**

Chrono generated by hbm2java

*/

@Entity

@Table(name = “chrono”, catalog = “chrono”, uniqueConstraints = {})

public class Chrono implements java.io.Serializable {

// Fields

private int barra;

private String nome;

// Constructors

/** default constructor */

public Chrono() {

}

/** full constructor */

public Chrono(int barra, String nome) {

this.barra = barra;

this.nome = nome;

}

// Property accessors

@Id

@Column(name = “BARRA”, unique = true, nullable = false, insertable = true, updatable = true)

public int getBarra() {

return this.barra;

}

public void setBarra(int barra) {

this.barra = barra;

}

@Column(name = “NOME”, unique = false, nullable = false, insertable = true, updatable = true)

public String getNome() {

return this.nome;

}

public void setNome(String nome) {

this.nome = nome;

}

}

CLASSE DAO

import javax.ejb.Stateless;

import javax.persistence.EntityManager;

import javax.persistence.PersistenceContext;

import org.apache.commons.logging.Log;

import org.apache.commons.logging.LogFactory;

/**

Home object for domain model class Chrono.
@see .Chrono

@author Hibernate Tools
*/
@Stateless
public class ChronoHome {

private static final Log log = LogFactory.getLog(ChronoHome.class);

@PersistenceContext
private EntityManager entityManager;

public void persist(Chrono transientInstance) {

log.debug(“persisting Chrono instance”);

try {

entityManager.persist(transientInstance);

log.debug(“persist successful”);

} catch (RuntimeException re) {

log.error(“persist failed”, re);

throw re;

}

}

public void remove(Chrono persistentInstance) {

log.debug(“removing Chrono instance”);

try {

entityManager.remove(persistentInstance);

log.debug(“remove successful”);

} catch (RuntimeException re) {

log.error(“remove failed”, re);

throw re;

}

}

public Chrono merge(Chrono detachedInstance) {

log.debug(“merging Chrono instance”);

try {

Chrono result = entityManager.merge(detachedInstance);

log.debug(“merge successful”);

return result;

} catch (RuntimeException re) {

log.error(“merge failed”, re);

throw re;

}

}

public Chrono findById(int id) {

log.debug("getting Chrono instance with id: " + id);

try {

Chrono instance = entityManager.find(Chrono.class, id);

log.debug(“get successful”);

return instance;

} catch (RuntimeException re) {

log.error(“get failed”, re);

throw re;

}

}

}

So que na minha classe DAO da um erro
nao consigo fazer a importação do condigo gerado
do import javax.ejb.Stateless;

so consigo importa o EJ3 dessa maneira
import org.hibernate.ejb.*;

so que nao encontro a lib Stateless ???

guerios 21 de ago. de 2006

zerxxx: