Re: How to use Request Factory with JPA Hibernate and PostgreSQL ?
Hey, here an update on my topic. I could solve the problem. I created a new Project without App Engine. Now the persistence.xml gets used like expected. App Engine caused, that datanucleus instead of hibernate were used. Regards -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/Bi-7F3cgwOYJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: How to use Request Factory with JPA Hibernate and PostgreSQL ?
Hey, I use the following persistence.xml now. I dont get a exception anymore but I still dont get any records saved into my database either. I also should see some SQL statements in my console if he would commit any SQL, right? I dont see any SQL :( If I change databasename or password to any wrong value, I dont get any error/exception. Everything still "works". Has anyone an idea? Any help is much appreciated. Regards Heres the persistence.xml: de.mash.project.server.Worker -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/KpZyLqsz1wIJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: How to use Request Factory with JPA Hibernate and PostgreSQL ?
Btw, do I have to disable App Engine ? Actually My Project-Propertys->Google->App Engine-> Use Google App Engine is set. Do I have to configurate jdoconfig.xml? When i use the following persistence.xml I dont get the exception anymore, buts its still not working :( Thats the output: Sep 26, 2012 7:13:11 PM org.hibernate.engine.jdbc.internal.JdbcServicesImpl configure WARN: HHH000342: Could not obtain connection to query metadata : Der Verbindungsversuch schlug fehl. Any ideas? :/ Adding i.e. 10 I get the ecxeption again. I had already tested the connection data with a jdbc connect, so they should be right. Thats the xml: 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"> org.hibernate.ejb.HibernatePersistence Am Mittwoch, 26. September 2012 04:36:05 UTC+2 schrieb Manuel: > > Hi everyone, > > I want to use a postgres db with the RF JPA. > I dont know if I´m on the right way, but I thought i just have to edit the > persistence.xml? > > > Thats what my persistence.xml look like: > > > 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"> > > transaction-type="RESOURCE_LOCAL"> > > org.eclipse.persistence.jpa.PersistenceProvider > > > > value="jdbc:postgresql://localhost:5432/dev_mash" /> > > > true > name="dialect">org.hibernate.dialect.PostgreSQLDialect > > /> > > > > > > > I just started to work on that, so any help is much appreciated. > If you need any further information, please let me know. > > Thanks in advanced. > > Regards > -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/L3wlMETqQlgJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: How to use Request Factory with JPA Hibernate and PostgreSQL ?
Some more Info:
Thats the Worker.java class:
package de.mash.project.server;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.Persistence;
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();
EntityManagerFactory emf =
Persistence.createEntityManagerFactory("transactions-optional");
EntityManager em = emf.createEntityManager();
try {
em.persist(this);
} catch (Exception e) {
int i = 1;
} finally {
em.close();
}
}
public static final EntityManager entityManager() {
return EMF.get().createEntityManager();
}
}
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Re: How to use Request Factory with JPA Hibernate and PostgreSQL ?
Hmm ok.. so whats the provider? Found this org.hibernate.ejb.HibernatePersistence one. I updated the provider and put my class (Worker.java) in the persistence.xml but Iam still get an exception: When i create the EntityManagerFactory, ReflectiveServiceLayer.invoke(Method domainMethod, Object... args) throws an exception (InvocationTargetException). So far, i couldnt find any tutorial to get this working. So any help is much appreciated. Regards Thats my current persistence.xml: 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"> org.hibernate.ejb.HibernatePersistence de.mash.server.Worker true org.hibernate.dialect.PostgreSQLDialect Heres what i get from the console: com.google.web.bindery.event.shared.UmbrellaException: One or more exceptions caught, see full set in UmbrellaException#getCauses at com.google.web.bindery.requestfactory.shared.impl.AbstractRequestContext$StandardPayloadDialect.processPayload(AbstractRequestContext.java:387) at com.google.web.bindery.requestfactory.shared.impl.AbstractRequestContext$5.onTransportSuccess(AbstractRequestContext.java:1108) at com.google.web.bindery.requestfactory.gwt.client.DefaultRequestTransport$1.onResponseReceived(DefaultRequestTransport.java:136) at com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java:287) at com.google.gwt.http.client.RequestBuilder$1.onReadyStateChange(RequestBuilder.java:395) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103) at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71) at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:172) at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessagesWhileWaitingForReturn(BrowserChannelServer.java:337) at com.google.gwt.dev.shell.BrowserChannelServer.invokeJavascript(BrowserChannelServer.java:218) at com.google.gwt.dev.shell.ModuleSpaceOOPHM.doInvoke(ModuleSpaceOOPHM.java:136) at com.google.gwt.dev.shell.ModuleSpace.invokeNative(ModuleSpace.java:561) at com.google.gwt.dev.shell.ModuleSpace.invokeNativeObject(ModuleSpace.java:269) at com.google.gwt.dev.shell.JavaScriptHost.invokeNativeObject(JavaScriptHost.java:91) at com.google.gwt.core.client.impl.Impl.apply(Impl.java) at com.google.gwt.core.client.impl.Impl.entry0(Impl.java:213) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103) at com.google.gwt.dev.shell.MethodDispatch.invoke(MethodDispatch.java:71) at com.google.gwt.dev.shell.OophmSessionHandler.invoke(OophmSessionHandler.java:172) at com.google.gwt.dev.shell.BrowserChannelServer.reactToMessages(BrowserChannelServer.java:292) at com.google.gwt.dev.shell.BrowserChannelServer.processConnection(BrowserChannelServer.java:546) at com.google.gwt.dev.shell.BrowserChannelServer.run(BrowserChannelServer.java:363) at java.lang.Thread.run(Unknown Source) Caused by: java.lang.RuntimeException: Server Error: Explicit persistence provider error(s) occurred for "transactions-optional" after trying the following discovered implementations: org.datanucleus.api.jpa.PersistenceProviderImpl, org.hibernate.ejb.HibernatePersistence from provider: org.hibernate.ejb.HibernatePersistence at com.google.web.bindery.requestfactory.shared.Receiver.onFailure(Receiver.java:44) at com.google.web.bindery.requestfactory.shared.impl.AbstractRequest.onFail(AbstractRequest.java:118) at com.google.web.bindery.requestfactory.shared.impl.AbstractRequestContext$StandardPayloadDialect.processPayload(AbstractRequestContext.java:359) at com.google.web.bindery.requestfactory.shared.impl.AbstractRequestContext$5.onTransportSuccess(AbstractRequestContext.java:1108) at com.google.web.bindery.requestfactory.gwt.client.DefaultRequestTransport$1.onResponseReceived(DefaultRequestTransport.java:136) at com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java:287) at com.google.gwt.http.client.RequestBuilder$1.onReadyStateChange(RequestBuilder.java:395) at sun.reflect.NativeMethodAccessorImpl.in
Re: How to use Request Factory with JPA Hibernate and PostgreSQL ?
If you want to use Hibernate I guess the persistence provider is wrong. Looks like its the one of EclipseLink. -- J. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/TpOZmrWlVeAJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
