EntityManager persist() method does not insert record to database => SEVERE: javax.persistence.TransactionRequiredException - jpa

Question

I have problem with using EntityManager persist() method.
I am using JSF2.0, glassfish 3, JPA and hibernate, i am not using spring.
I try to add events in an events table with the method persist, but EntityManager persist() method does not insert record to database and i have this error message =>
SEVERE: javax.persistence.TransactionRequiredException
at com.sun.enterprise.container.common.impl.EntityManagerWrapper.doTxRequiredCheck(EntityManagerWrapper.java:163)
at com.sun.enterprise.container.common.impl.EntityManagerWrapper.flush(EntityManagerWrapper.java:411)
at dao.EvenementDao.addEvenement(EvenementDao.java:128).
#ManagedBean
#Stateless
public class EvenementDao implements Serializable{
/**
*
*/
private static final long serialVersionUID = -3343483942392617877L;
/**
*
*/
private List<TEvenement> listeEvenement;
private List<SelectItem> listeSelectItemEvnt;
private TEvenement tevenement ;
public EvenementDao() {
}
#PersistenceUnit(unitName="GA2010-ejbPU-dev")
private EntityManagerFactory emf;
#PostConstruct
private void init() {
tevenement = new TEvenement();
}
public List<TEvenement> getListeEvenement() {
EntityManager em = emf.createEntityManager();
TypedQuery<TEvenement> requete = m.createNamedQuery("TEvenement.findPrivateOther",
TEvenement.class);
listeEvenement = requete.getResultList();
return listeEvenement;
}
public TEvenement getEvenement() {
return tevenement;
}
public void setEvenement(TEvenement evenement) {
this.tevenement = evenement;
}
public void addEvenement(){
EntityManager em = emf.createEntityManager();
HttpSession session = (HttpSession) FacesContext.getCurrentInstance().
getExternalContext().getSession(false);
Integer codeUser = (Integer) session.getAttribute("codeUser");
tevenement.setUtilCreation(codeUser);
System.out.println("je rentre dans addevenemnt");
try{
System.out.println("i persist "+ em);
em.persist(tevenement);
em.flush();
System.out.println(tevenement.getDetailsEvenement());
FacesMessage message = new FacesMessage("Evenement ajouté avec succès.");
FacesContext.getCurrentInstance().addMessage(null, message);
}catch(Exception e){
e.printStackTrace();
}
}
}
So, this is not working, but the progam enter in the fonction addEvenement , FacesMessage message = new FacesMessage("Evenement ajouté avec succès."); returns me the message as if it was working.
i thouht it was due to my entityMAnager but in fact an ohter function works fine with the same Entity manager so i dont understand.
**public List<TEvenement> getListeEvenement()** {
EntityManager em = emf.createEntityManager();
TypedQuery<TEvenement> requete = em.createNamedQuery("TEvenement.findPrivateOther", TEvenement.class);
listeEvenement = requete.getResultList();
return listeEvenement;
}
this one works fine, the only difference is that in this case the query is a select and in the other case it's a persist so a query that impact the database.
the code of the entity :
#Entity
#Table(name="t_evenements")
#NamedQueries({#NamedQuery(name="TEvenement.findAll", query="SELECT evnt FROM TEvenement evnt"),
#NamedQuery(name="TEvenement.findPrivateOther", query="SELECT evnt FROM TEvenement evnt WHERE evnt.typeEvenement = 6 OR evnt.typeEvenement = 7")})
public class TEvenement implements Serializable {
private static final long serialVersionUID = -1908959833491896991L;
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
#Column(name="REF_EVENEMENT", unique=true, nullable=false)
private Integer refEvenement;
#Temporal(TemporalType.DATE)
#Column(name="DATE_DEBUT_EVENEMENT")
private Date dateDebutEvenement;
#Temporal(TemporalType.DATE)
#Column(name="DATE_FIN_EVENEMENT")
private Date dateFinEvenement;
#Column(name="DETAILS_EVENEMENT")
private String detailsEvenement;
#Column(name="IS_EVERYDAY")
private byte isEveryday;
#Column(name="RAPPEL_EVENEMENT")
private int rappelEvenement;
public Integer getUtilEvenement() {
return utilEvenement;
}
public void setUtilEvenement(Integer utilEvenement) {
this.utilEvenement = utilEvenement;
}
#Column(name="TITRE_EVENEMENT")
private String titreEvenement;
#Column(name="TYPE_EVENEMENT")
private String typeEvenement;
#Column(name="UTIL_COPIE_EVENEMENT")
private Integer utilCopieEvenement;
#Column(name="UTIL_EVENEMENT")
private Integer utilEvenement;
#Column(name="HEURE_EVENEMENT")
private String heureEvenement;
#Column(name="UTIL_CREATION")
private Integer utilCreation;
public String getHeureEvenement() {
return heureEvenement;
}
public void setHeureEvenement(String heureEvenement) {
this.heureEvenement = heureEvenement;
}
public TEvenement() {
}
public Integer getRefEvenement() {
return this.refEvenement;
}
public void setRefEvenement(int refEvenement) {
this.refEvenement = refEvenement;
}
public Date getDateDebutEvenement() {
return this.dateDebutEvenement;
}
public Integer getUtilCreation() {
return utilCreation;
}
public void setUtilCreation(Integer utilCreation) {
this.utilCreation = utilCreation;
}
public void setUtilCopieEvenement(Integer utilCopieEvenement) {
this.utilCopieEvenement = utilCopieEvenement;
}
public void setDateDebutEvenement(Date dateDebutEvenement) {
this.dateDebutEvenement = dateDebutEvenement;
}
public Date getDateFinEvenement() {
return this.dateFinEvenement;
}
public void setDateFinEvenement(Date dateFinEvenement) {
this.dateFinEvenement = dateFinEvenement;
}
public String getDetailsEvenement() {
return this.detailsEvenement;
}
public void setDetailsEvenement(String detailsEvenement) {
this.detailsEvenement = detailsEvenement;
}
public byte getIsEveryday() {
return this.isEveryday;
}
public void setIsEveryday(byte isEveryday) {
this.isEveryday = isEveryday;
}
public int getRappelEvenement() {
return this.rappelEvenement;
}
public void setRappelEvenement(int rappelEvenement) {
this.rappelEvenement = rappelEvenement;
}
public String getTitreEvenement() {
return this.titreEvenement;
}
public void setTitreEvenement(String titreEvenement) {
this.titreEvenement = titreEvenement;
}
public String getTypeEvenement() {
return this.typeEvenement;
}
public void setTypeEvenement(String typeEvenement) {
this.typeEvenement = typeEvenement;
}
public Integer getUtilCopieEvenement() {
return this.utilCopieEvenement;
}
public void setUtilCopieEvenement(int utilCopieEvenement) {
this.utilCopieEvenement = utilCopieEvenement;
}
}
Do anyone have a idea what am i missing?

Answer 1

The difference isn't that you call persist, the difference is that you call em.flush() which as the error states, requires the EntityManager be joined to a transaction. Makes sure your getListeEvenement() method is wrapped in a transaction, or start one depending on your setup.