Sorry for posting several times.
But heres the error message from EntityManagerFactory emfInstance =
Persistence.createEntityManagerFactory("kunde");
Explicit persistence provider error(s) occurred for "kunde"
after trying the following discovered implementations:
org.datanucleus.api.jpa.PersistenceProviderImpl,
org.hibernate.ejb.HibernatePersistence from provider:
org.hibernate.ejb.HibernatePersistence
Am Freitag, 28. September 2012 10:26:54 UTC+2 schrieb Manuel:
>
> Hey again,
>
> I still havent found a solution...
>
> Heres one more Info:
> I get warning when creating my EntityManagerFactory:
> 10:20:03,507 WARN [DataNucleus.MetaData] - Class
> de.mash.project.client.StaffView was specified in persistence-unit kunde
> but not annotated, so ignoring
> 10:20:03,507 WARN [DataNucleus.MetaData] - Class
> de.mash.project.client.AppController was specified in persistence-unit
> kunde but not annotated, so ignoring
> 10:20:03,507 WARN [DataNucleus.MetaData] - Class
> de.mash.project.client.MashService was specified in persistence-unit kunde
> but not annotated, so ignoring
> 10:20:03,507 WARN [DataNucleus.MetaData] - Class
> de.mash.project.server.MashServiceImpl was specified in persistence-unit
> kunde but not annotated, so ignoring
> 10:20:03,507 WARN [DataNucleus.MetaData] - Class
> de.mash.project.client.MainPage was specified in persistence-unit kunde but
> not annotated, so ignoring
> 10:20:03,507 WARN [DataNucleus.MetaData] - Class
> de.mash.project.shared.WorkerProxy was specified in persistence-unit kunde
> but not annotated, so ignoring
> 10:20:03,507 WARN [DataNucleus.MetaData] - Class
> de.mash.project.shared.WorkerRequestFactoryDeobfuscatorBuilder was
> specified in persistence-unit kunde but not annotated, so ignoring
> 10:20:03,507 WARN [DataNucleus.MetaData] - Class
> de.mash.project.client.presenter.Presenter was specified in
> persistence-unit kunde but not annotated, so ignoring
> 10:20:03,507 WARN [DataNucleus.MetaData] - Class
> de.mash.project.shared.ExpensesRequestFactoryDeobfuscatorBuilder was
> specified in persistence-unit kunde but not annotated, so ignoring
> 10:20:03,633 WARN [DataNucleus.MetaData] - Class
> de.mash.project.client.StockPrice was specified in persistence-unit kunde
> but not annotated, so ignoring
> 10:20:03,633 WARN [DataNucleus.MetaData] - Class
> de.mash.project.shared.ExpensesRequestFactory was specified in
> persistence-unit kunde but not annotated, so ignoring
> 10:20:03,633 WARN [DataNucleus.MetaData] - Class
> de.mash.project.shared.WorkerRequestFactory was specified in
> persistence-unit kunde but not annotated, so ignoring
> 10:20:03,633 WARN [DataNucleus.MetaData] - Class
> de.mash.project.client.MashServiceAsync was specified in persistence-unit
> kunde but not annotated, so ignoring
> 10:20:03,633 WARN [DataNucleus.MetaData] - Class
> de.mash.project.shared.WorkerRequest was specified in persistence-unit
> kunde but not annotated, so ignoring
> 10:20:03,633 WARN [DataNucleus.MetaData] - Class
> de.mash.project.client.TabContent was specified in persistence-unit kunde
> but not annotated, so ignoring
> 10:20:03,633 WARN [DataNucleus.MetaData] - Class
> de.mash.project.shared.EmployeeProxy was specified in persistence-unit
> kunde but not annotated, so ignoring
> 10:20:03,649 WARN [DataNucleus.MetaData] - Class
> de.mash.project.shared.FieldVerifier was specified in persistence-unit
> kunde but not annotated, so ignoring
> 10:20:03,649 WARN [DataNucleus.MetaData] - Class
> de.mash.project.server.EMF was specified in persistence-unit kunde but not
> annotated, so ignoring
> 10:20:03,649 WARN [DataNucleus.MetaData] - Class
> de.mash.project.shared.EmployeeRequest was specified in persistence-unit
> kunde but not annotated, so ignoring
>
>
> So it looks like datanucleus is used instead of my db... tough i dont
> exactly know what this nucleus does.
> I tried to disable it via project properties, but after that i had some
> errors inside my project because he deleted jars etc...
>
>
>
> Am Freitag, 28. September 2012 02:26:45 UTC+2 schrieb Manuel:
>>
>> Hi everyone,
>>
>> Actually I try to use GWT, Request Factory + JPA with Hibernate.
>> It seems to be working, but there is no data in my local database.
>>
>> I can create a EntityMangerFactory
>> private static final EntityManagerFactory emfInstance =
>> Persistence.createEntityManagerFactory("kunde");[/code]
>>
>> a EntityManger
>> EMF.createEntityManager()
>>
>> and persists a Object
>> em.persist(Worker);
>>
>> I can also read all my persisted Objects.
>>
>> But I dont know where the data is saved. I thought, it should be saved in
>> the postgresDB I configured in my persistence.xml?
>>
>>
>> Any help is much appreciated.
>> Thanks in advanced.
>>
>> Regards,
>> Manuel
>>
>>
>>
>> Here is my Code, please let me know if you need any further information.
>>
>> My Entity Class
>> package de.mash.project.server;
>>
>> import java.util.List;
>>
>> import javax.jdo.annotations.Transactional;
>> import javax.persistence.Column;
>> import javax.persistence.Entity;
>> import javax.persistence.EntityManager;
>> import javax.persistence.GeneratedValue;
>> import javax.persistence.GenerationType;
>> import javax.persistence.Id;
>> import javax.persistence.Table;
>> import javax.persistence.Transient;
>>
>> @Entity
>> @Table(name = "Worker")
>> public class Worker {
>>
>> public static Worker findWorker(Long id) {
>> // if (id == 0) {
>> return null;
>> // }
>> // EntityManager em = entityManager();
>> // try {
>> // Worker worker = em.find(Worker.class, id);
>> // return worker;
>> // } finally {
>> // em.close();
>> // }
>> }
>>
>> @Transient
>> protected Object[] jdoDetachedState;
>>
>> // @Id
>> // @GeneratedValue(generator = "auto_increment")
>> // @GenericGenerator(name = "auto_increment", strategy = "increment")
>> // @Column(name = "id")
>> // private int id;
>>
>> @Id
>> @Column(name = "id")
>> @GeneratedValue(strategy = GenerationType.IDENTITY)
>> private Long id;
>>
>> @Column(name = "first_name")
>> private String firstName;
>>
>> @Column(name = "last_name")
>> private String lastName;
>>
>> @Column(name = "salary")
>> private int salary;
>>
>> public Worker() {
>> }
>>
>> public Worker(String fname, String lname, int salary) {
>> this.firstName = fname;
>> this.lastName = lname;
>> this.salary = salary;
>> }
>>
>> public Long getId() {
>> return id;
>> }
>>
>> public void setId(long id) {
>> this.id = id;
>> }
>>
>> public String getFirstName() {
>> return firstName;
>> }
>>
>> public void setFirstName(String first_name) {
>> this.firstName = first_name;
>> }
>>
>> public String getLastName() {
>> return lastName;
>> }
>>
>> public void setLastName(String last_name) {
>> this.lastName = last_name;
>> }
>>
>> public int getSalary() {
>> return salary;
>> }
>>
>> public void setSalary(int salary) {
>> this.salary = salary;
>> }
>>
>> public static Long countWorkers() {
>> return 2l;
>> }
>>
>> public Integer getVersion() {
>> return 1;
>> }
>>
>> public void persist() {
>> EntityManager em = entityManager();
>> try {
>> // em.getTransaction().begin();
>> em.persist(this);
>> // em.flush();
>> // em.getTransaction().commit();
>> } catch (Exception e) {
>> int i = 1;
>> } finally {
>> em.close();
>> }
>>
>> em = entityManager();
>>
>> final List<Worker> list = em.createQuery("select p from Worker
>> p").getResultList();
>>
>> System.out.println(list.size());
>> for (Worker current : list) {
>> System.out.println(current.getFirstName() + " " +
>> current.getLastName() + " " + current.getSalary());
>> }
>>
>> em.close();
>>
>> }
>>
>> public static final EntityManager entityManager() {
>> return EMF.get().createEntityManager();
>> }
>>
>> }
>>
>>
>> My persistence.xml
>> <?xml version="1.0" encoding="UTF-8" ?>
>> <persistence xmlns="http://java.sun.com/xml/ns/persistence";
>> xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
>> xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
>> http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd";
>> version="1.0">
>>
>> <persistence-unit name="kunde" transaction-type="RESOURCE_LOCAL">
>> <class>de.mash.project.server.Worker</class>
>>
>> <properties>
>> <property name="hibernate.dialect"
>> value="org.hibernate.dialect.PostgreSQLDialect" />
>> <property name="hibernate.show_sql" value="true" />
>>
>> <property name="hibernate.connection.driver_class"
>> value="org.postgresql.Driver" />
>> <property name="hibernate.connection.url"
>> value="jdbc:postgresql://localhost:5432/dev_mash" />
>> <property name="hibernate.connection.username"
>> value="postgres" />
>> <property name="hibernate.connection.password" value="m4nu3l"
>> />
>> <property name="hibernate.default_schema" value="public" />
>>
>> <property name="hibernate.hbm2ddl.auto" value="create" />
>> <property name="hibernate.hbm2ddl.auto" value="create-drop" />
>> </properties>
>> </persistence-unit>
>>
>> </persistence>
>>
>
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