I am getting the following error on my application:
SEVERE: Exception sending context initialized event to listener instance of class com.puntobile.videre.util.VidereContextListener
javax.persistence.PersistenceException: [PersistenceUnit: Videre] Unable to build EntityManagerFactory
This happened when I changed my DAO and closed each EntityManager session when it was used, which I was not doing before, and is a bad practise. For that reason, I had to add fetch=EAGER to my Collections. Here are my three entities:
package com.puntobile.videre.data;
import java.util.ArrayList;
import java.util.List;
import javax.persistence.*;
import org.hibernate.annotations.LazyCollection;
import org.hibernate.annotations.LazyCollectionOption;
@Entity
@SequenceGenerator(name="user_seq", sequenceName="user_seq", allocationSize=1, initialValue=1)
@Table(name="users")
public class User {
@Id
@GeneratedValue(generator="user_seq", strategy=GenerationType.SEQUENCE)
private Long id;
@Column(name="userName")
private String userName;
@Column(name="password")
private String password;
@Column(name="accessLevel")
private int accessLevel;
@OneToMany(mappedBy="user", fetch=FetchType.EAGER)
@LazyCollection(LazyCollectionOption.FALSE)
private List<Sign> signs;
public User() {}
public User(String userName, String password, int accessLevel) {
this.userName = userName;
this.password = password;
this.accessLevel = accessLevel;
this.signs = new ArrayList<Sign>();
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public int getAccessLevel() {
return accessLevel;
}
public void setAccessLevel(int accessLevel) {
this.accessLevel = accessLevel;
}
public void setSigns(List<Sign> signs) {
this.signs = signs;
}
public List<Sign> getSigns() {
return signs;
}
}
Another one:
package com.puntobile.videre.data;
import java.util.List;
import javax.persistence.*;
import org.hibernate.annotations.LazyCollection;
import org.hibernate.annotations.LazyCollectionOption;
import org.hibernate.annotations.Type;
import org.joda.time.DateTime;
import org.joda.time.LocalDate;
@Entity
@SequenceGenerator(name="sign_seq", sequenceName="sign_seq", allocationSize=1, initialValue=1)
public class Sign {
@Id
@GeneratedValue(generator="sign_seq", strategy=GenerationType.SEQUENCE)
private Long id;
@Column(name="signName")
private String name;
@Column(name="url")
private String url;
@Column(name="description")
private String description;
@Column(name="lastOnline", nullable=false)
@Type(type="org.jadira.usertype.dateandtime.joda.PersistentDateTime")
private DateTime lastOnline;
@ManyToOne(fetch=FetchType.EAGER)
private User user;
@OneToMany(mappedBy="sign", fetch=FetchType.EAGER)
@LazyCollection(LazyCollectionOption.FALSE)
private List<DayVideo> videos;
public Sign() {}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public List<DayVideo> getVideos() {
return videos;
}
public void setVideos(List<DayVideo> videos) {
this.videos = videos;
}
public DateTime getLastOnline() {
return lastOnline;
}
public void setLastOnline(DateTime lastOnline) {
this.lastOnline = lastOnline;
}
}
And the last one:
package com.puntobile.videre.data;
import javax.persistence.*;
import org.hibernate.annotations.Type;
import org.joda.time.LocalDate;
@Entity
@SequenceGenerator(name="dayvideo_seq", sequenceName="dayvideo_seq", allocationSize=1, initialValue=1)
public class DayVideo {
@Id
@GeneratedValue(generator="dayvideo_seq", strategy=GenerationType.SEQUENCE)
private Long id;
@Column(name="startDate", nullable=false)
@Type(type="org.jadira.usertype.dateandtime.joda.PersistentLocalDate")
LocalDate startDate;
@Column(name="endDate", nullable=false)
@Type(type="org.jadira.usertype.dateandtime.joda.PersistentLocalDate")
LocalDate endDate;
@Column(name="videoName")
String videoName;
@ManyToOne(fetch=FetchType.EAGER) @JoinColumn(name="sign_id")
Sign sign;
public DayVideo() {}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
public LocalDate getStartDate() {
return startDate;
}
public void setStartDate(LocalDate startDate) {
this.startDate = startDate;
}
public LocalDate getEndDate() {
return endDate;
}
public void setEndDate(LocalDate endDate) {
this.endDate = endDate;
}
public String getVideoName() {
return videoName;
}
public void setVideoName(String videoName) {
this.videoName = videoName;
}
public Sign getSign() {
return sign;
}
public void setSign(Sign sign) {
this.sign = sign;
}
}
