I have two Projects, one a Maven-Dependancy of the other. Both have seperate PostgreSQL DBs. If I run the Application, an "Not an entity" Error is thrown as soon as I try to use an Entity of the dependend Project in the dependend Project.
I tried already to chance the transaction-type to JTA or RESSOURCE-LOCAL or none at all. I also have generated the Entities again from scrap, using the Eclipse JPA Tools.
User.java:
/**
* The persistent class for the "Users" database table.
*
*/
@Entity
@Table(name = "\"Users\"")
@NamedQuery(name = "User.findAll", query = "SELECT u FROM User u")
public class User implements Serializable {
private static final long serialVersionUID = 1L;
@Id
@GeneratedValue(strategy = GenerationType.TABLE)
private Integer id;
private String mail;
private String password;
// bi-directional many-to-many association to Role
@ManyToMany(fetch = FetchType.EAGER)
@JoinTable(name = "\"User_Role\"", joinColumns = { @JoinColumn(name = "user_id") }, inverseJoinColumns = {
@JoinColumn(name = "role_id") })
private Set<Role> roles;
// bi-directional many-to-many association to Permission
@ManyToMany(fetch = FetchType.EAGER)
@JoinTable(name = "\"User_Permission\"", joinColumns = { @JoinColumn(name = "user_id") }, inverseJoinColumns = {
@JoinColumn(name = "permission_id") })
private Set<Permission> permissions;
public User() {
}
public Integer getId() {
return this.id;
}
public void setId(Integer id) {
this.id = id;
}
public String getMail() {
return this.mail;
}
public void setMail(String mail) {
this.mail = mail;
}
public String getPassword() {
return this.password;
}
public void setPassword(String password) {
this.password = password;
}
public Set<Permission> getPermissions() {
return this.permissions;
}
public void setPermissions(Set<Permission> permissions) {
this.permissions = permissions;
}
public Set<Role> getRoles() {
return this.roles;
}
public void setRoles(Set<Role> roles) {
this.roles = roles;
}
}
persistence.xml:
<persistence-unit name="Authentication" transaction-type="JTA">
<class>com.auticon.learning.authentication.entities.User</class>
<class>com.auticon.learning.authentication.entities.Permission</class>
<class>com.auticon.learning.authentication.entities.Role</class>
<properties>
<!-- EclipseLink should create the database schema automatically -->
<property name="eclipselink.ddl-generation" value="create-tables" />
<property name="eclipselink.ddl-generation.output-mode"
value="database" />
<property name="javax.persistence.jdbc.driver" value="org.postgresql.Driver"></property>
<property name="javax.persistence.jdbc.url" value="jdbc:postgresql://localhost:5432/Credentials"></property>
<property name="javax.persistence.jdbc.user" value="postgres"></property>
<property name="javax.persistence.jdbc.password" value="******"></property>
</properties>
</persistence-unit>
Class where the Error is thrown:
public static User findUser(String username) {
CriteriaBuilder builder = SessionConfig.getSession().getCriteriaBuilder();
CriteriaQuery<User> criteriaQuery = builder.createQuery(User.class);
//Error is thrown when I try to get the Root Parameter of the Entity
Root<User> root = criteriaQuery.from(User.class);
criteriaQuery.where(builder.equal(root.get(User_.MAIL), username));
Query<User> query = SessionConfig.getSession().createQuery(criteriaQuery);
try {
return query.getSingleResult();
} catch (NoResultException e) {
return null;
}
}
Calling Class in other Project, which is dependend on above Project (yes mostly plain from Primefaces Showcase :P ):
public void login() {
FacesMessage message = null;
boolean loggedIn = false;
//Login.checkPW() first action is calling findUser()
if (Login.checkPW(username, password)) {
loggedIn = true;
message = new FacesMessage(FacesMessage.SEVERITY_INFO, "Welcome", username);
} else {
loggedIn = false;
message = new FacesMessage(FacesMessage.SEVERITY_WARN, "Loggin Error", "Invalid credentials");
}
FacesContext.getCurrentInstance().addMessage(null, message);
PrimeFaces.current().ajax().addCallbackParam("loggedIn", loggedIn);
}
Screen of the PostgreSQL DB (I am not allowed to Post Images in the Post directly)
JPA realising that I have annoteted the Entity correctly, listed it in the persitence.xml and the Table REALLY exists in the DB.
Complete Stacktrace:
Caused by: java.lang.IllegalArgumentException: Not an entity: class com.auticon.learning.authentication.entities.User at org.hibernate.metamodel.internal.MetamodelImpl.entity(MetamodelImpl.java:536) at org.hibernate.query.criteria.internal.QueryStructure.from(QueryStructure.java:126) at org.hibernate.query.criteria.internal.CriteriaQueryImpl.from(CriteriaQueryImpl.java:153) at com.auticon.learning.authentication.client.DBOperations.findUser(DBOperations.java:22) at com.auticon.learning.authentication.api.Login.checkPW(Login.java:9) at de.auticon.views.UserLoginView.login(UserLoginView.java:43) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at com.sun.el.util.ReflectionUtil.invokeMethod(ReflectionUtil.java:181) at com.sun.el.parser.AstValue.invoke(AstValue.java:289) at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:304) at org.jboss.weld.module.web.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40) at org.jboss.weld.module.web.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50) at org.jboss.weld.module.web.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:40) at org.jboss.weld.module.web.el.WeldMethodExpression.invoke(WeldMethodExpression.java:50) at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:65) at com.sun.faces.application.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:66) ... 58 more
