Hey,
thats some code from my entity.persist() method:
// em.getTransaction().begin();
em.persist(this);
// em.flush();
// em.getTransaction().commit();
I already uncommented the code and tried that, if thats what you meant by
using a transaction.
Regards
Am Freitag, 28. September 2012 04:45:00 UTC+2 schrieb Juan Pablo Gardella:
>
> Hi,
>
> Try next in Hibernate forum. Perhaps you are not working inside a
> transaction. Try work inside of a transaction and commit it.
>
> Cheers
>
> 2012/9/27 Manuel <[email protected] <javascript:>>
>
>> Hi,
>>
>> thanks for your reply. I see...
>>
>> Btw changeing it to "update" doesnt have any effect.
>>
>> The data I persists isnt saved to my local database.
>> It seems like it doesnt really matter what configuration I got in the
>> persistence.xml.
>> Even when I set an invalid password, I still can persists data / read
>> data.
>>
>>
>> Am Freitag, 28. September 2012 02:40:20 UTC+2 schrieb Juan Pablo Gardella:
>>>
>>> Nothing related to GWT, use JPA/Hibernate forum. You are create and drop
>>> the database each time that EMF is created:
>>>
>>> <property name="hibernate.hbm2ddl.auto" value="create" />
>>> <property name="hibernate.hbm2ddl.auto" value="create-drop"
>>> />
>>>
>>> Use update instead create-drop.
>>>
>>> 2012/9/27 Manuel <[email protected]>
>>>
>>>> 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<http://java.sun.com/xml/ns/persistence>
>>>> "
>>>>
>>>> xmlns:xsi="http://www.w3.org/**2001/XMLSchema-instance<http://www.w3.org/2001/XMLSchema-instance>
>>>> "
>>>>
>>>> xsi:schemaLocation="http://**java.sun.com/xml/ns/**persistence<http://java.sun.com/xml/ns/persistence>
>>>>
>>>> http://java.sun.com/xml/ns/**persistence/persistence_1_0.**xsd<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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