Hi @all,
i've a problem with hibernate and a @ManyToOne/@OneToMany-relation and don't know how solve it. The following Exception occures and I don't know why:
Exception in thread "main" org.hibernate.AnnotationException: Use of @OneToMany or @ManyToMany targeting an unmapped class: de.hfu.wi.aam.sa.calendar.persistence.entities.CalendarUser.lstTasks[de.hfu.wi.aam.sa.calendar.persistence.entities.Task]
The message only occures for the relation between the class Task and CalenderUser although I've completely identical annotations to the other Classes, which are working.
Without this particular relation of Tasks and CalenderUsers everything is working, also the other relations as you can see in the two classes.
The classes are also mapped by my hibernate.config.xml file.
Is there anybody who can help me or has a hint for me?Code:
package de.hfu.wi.aam.sa.calendar.persistence.entities;
import java.util.List;
import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.Id;
import javax.persistence.JoinTable;
import javax.persistence.ManyToMany;
import javax.persistence.OneToMany;
import javax.persistence.JoinColumn;
@Entity
public class CalendarUser {
@Id
private String id;
private int firstname;
private int lastName;
@OneToMany(targetEntity = UserAppointment.class, mappedBy = "user", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
private List<UserAppointment> appointments;
@OneToMany(targetEntity = Task.class, mappedBy = "calendarUserOwner", cascade = CascadeType.ALL, fetch=FetchType.LAZY)
private List<Task> lstTasks;
// @OneToMany(targetEntity = Task.class, mappedBy = "owner", cascade = CascadeType.ALL, fetch = FetchType.EAGER)
// private List<Task> tasks;
@OneToMany(targetEntity = Appointment.class, mappedBy = "creator", cascade = CascadeType.ALL, fetch = FetchType.LAZY)
private List<Appointment> createdAppointments;
//TODO Gruppenfunktionalität gehört wohl eher ins UserMgmt
@ManyToMany
@JoinTable(name="JOIN_USER_GROUP",
joinColumns={@JoinColumn(name="CALENDER_USER_ID")},
inverseJoinColumns={@JoinColumn(name="USER_APPOINTMENT_ID")})
private List<Group> groups;
public CalendarUser(String id, int firstname, int lastName,
List<UserAppointment> userAppointments, List<Task> tasks,
List<Appointment> createdAppointments, List<Group> groups) {
super();
this.id = id;
this.firstname = firstname;
this.lastName = lastName;
this.appointments = userAppointments;
// this.tasks = tasks;
this.createdAppointments = createdAppointments;
this.groups = groups;
}
public String getId() {
return id;
}
public int getFirstname() {
return firstname;
}
public int getLastName() {
return lastName;
}
public List<UserAppointment> getAppointments() {
return appointments;
}
public List<Appointment> getCreatedAppointments() {
return createdAppointments;
}
public List<Group> getGroups() {
return groups;
}
public void setId(String id) {
this.id = id;
}
public void setFirstname(int firstname) {
this.firstname = firstname;
}
public void setLastName(int lastName) {
this.lastName = lastName;
}
public void setAppointments(List<UserAppointment> appointments) {
this.appointments = appointments;
}
public void setCreatedAppointments(List<Appointment> createdAppointments) {
this.createdAppointments = createdAppointments;
}
public void setGroups(List<Group> groups) {
this.groups = groups;
}
}
Code:
package de.hfu.wi.aam.sa.calendar.persistence.entities;
import java.util.Date;
import javax.persistence.JoinColumn;
import javax.persistence.ManyToOne;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
public class Task extends Event {
@Temporal(TemporalType.TIMESTAMP)
private Date due;
// @ManyToOne //@JoinColumn(name = "USER_FK")
// private CalendarUser owner;
@ManyToOne @JoinColumn(name = "FK_calendarUserOwner")
private CalendarUser calendarUserOwner;
@ManyToOne
@JoinColumn(name = "CATEGORY_FK")
private Category category;
public Task(String title, String description, Date due, CalendarUser owner,
Category category) {
super(title, description);
this.due = due;
//this.owner = owner;
this.category=category;
}
public Date getDue() {
return due;
}
public Category getCategory() {
return category;
}
public void setDue(Date due) {
this.due = due;
}
// public CalendarUser getOwner() {
// return owner;
// }
// public void setOwner(CalendarUser owner) {
// this.owner = owner;
// }
public void setCategory(Category category) {
this.category = category;
}
}
Code:
<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<hibernate-configuration>
<session-factory>
<!-- Database connection settings -->
<property name="connection.driver_class">org.apache.derby.jdbc.ClientDriver</property>
<property name="connection.url">jdbc:derby://localhost:1527/HibernateDb;create=true</property>
<property name="connection.username">user</property>
<property name="connection.password">password</property>
<property name="hibernate.default_schema">CALENDERTOOL</property>
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">2</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.DerbyDialect</property>
<!-- Enable Hibernate's current session context -->
<!-- Standardwert war hier "thread". Wird allerdings für besseres Sessionhandling (bzw.) eigenes geändert -->
<property name="current_session_context_class">thread</property>
<!-- Disable the second-level cache -->
<property name="cache.provider_class">org.hibernate.cache.NoCacheProvider</property>
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<mapping class="de.hfu.wi.aam.sa.calendar.persistence.entities.Task"/>
<mapping class="de.hfu.wi.aam.sa.calendar.persistence.entities.Appointment"/>
<mapping class="de.hfu.wi.aam.sa.calendar.persistence.entities.CalendarUser"/>
<mapping class="de.hfu.wi.aam.sa.calendar.persistence.entities.Category"/>
<mapping class="de.hfu.wi.aam.sa.calendar.persistence.entities.Event"/>
<mapping class="de.hfu.wi.aam.sa.calendar.persistence.entities.Group"/>
<mapping class="de.hfu.wi.aam.sa.calendar.persistence.entities.UserAppointment"/>
<!-- Drop and re-create the database schema on startup <property name="hbm2ddl.auto">create</property>
<mapping resource="org/hibernate/tutorial/domain/Event.hbm.xml"/> <mapping
resource="org/hibernate/tutorial/domain/Person.hbm.xml"/> -->
</session-factory>
</hibernate-configuration>
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