Gunnar Maluf

Hello all,

I am trying to configure a hibernate java project using annotations and I am getting the following error:
org.postgresql.jdbc2.Jdbc2DatabaseMetaData.supportsGetGeneratedKeys()Z

I have the following jars in my project:
C:\Program Files\Java\jre1.6.0_07\lib\resources.jar
C:\Program Files\Java\jre1.6.0_07\lib\rt.jar
C:\Program Files\Java\jre1.6.0_07\lib\jsse.jar
C:\Program Files\Java\jre1.6.0_07\lib\jce.jar
C:\Program Files\Java\jre1.6.0_07\lib\charsets.jar
C:\Program Files\Java\jre1.6.0_07\lib\ext\dnsns.jar
C:\Program Files\Java\jre1.6.0_07\lib\ext\localedata.jar
C:\Program Files\Java\jre1.6.0_07\lib\ext\postgresql-8.3-603.jdbc2.jar
C:\Program Files\Java\jre1.6.0_07\lib\ext\sunjce_provider.jar
C:\Program Files\Java\jre1.6.0_07\lib\ext\sunmscapi.jar
C:\Program Files\Java\jre1.6.0_07\lib\ext\sunpkcs11.jar
C:\Users\Gunnar\Documents\Text\Java\Hibernate\hibernate-distribution-3.3.2.GA\lib\required\antlr-2.7.6.jar
C:\Users\Gunnar\Documents\Text\Java\Hibernate\hibernate-distribution-3.3.2.GA\lib\required\commons-collections-3.1.jar
C:\Users\Gunnar\Documents\Text\Java\Hibernate\hibernate-distribution-3.3.2.GA\lib\required\dom4j-1.6.1.jar
C:\Users\Gunnar\Documents\Text\Java\Hibernate\hibernate-distribution-3.3.2.GA\lib\required\javassist-3.9.0.GA.jar
C:\Users\Gunnar\Documents\Text\Java\Hibernate\hibernate-distribution-3.3.2.GA\lib\required\jta-1.1.jar
C:\Users\Gunnar\Documents\Text\Java\Hibernate\hibernate-distribution-3.3.2.GA\lib\required\slf4j-api-1.5.8.jar
C:\Users\Gunnar\Documents\Text\Java\Hibernate\hibernate-distribution-3.3.2.GA\hibernate3.jar
C:\Users\Gunnar\Documents\Text\Java\Hibernate\hibernate-annotations-3.4.0.GA\hibernate-annotations.jar
C:\Users\Gunnar\Documents\Text\Java\Hibernate\hibernate-annotations-3.4.0.GA\lib\ejb3-persistence.jar
C:\Users\Gunnar\Documents\Text\Java\Hibernate\hibernate-annotations-3.4.0.GA\lib\hibernate-commons-annotations.jar
C:\Users\Gunnar\Documents\Text\Java\Hibernate\slf4j-1.5.8\slf4j-nop-1.5.8.jar

and the following classes:
package hello; import org.hibernate.HibernateException; import org.hibernate.Session; import org.hibernate.SessionFactory; import org.hibernate.cfg.AnnotationConfiguration; public class HibernateUtil { private static final SessionFactory sessionFactory; static { try { sessionFactory = new AnnotationConfiguration().addPackage("hello") .addAnnotatedClass(Teste.class).configure() .buildSessionFactory(); } catch (Throwable ex) { // Log exception! throw new ExceptionInInitializerError(ex); } } public static Session getSession() throws HibernateException { return sessionFactory.openSession(); } }

<?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> <property name="hibernate.connection.driver_class">org.postgresql.Driver</property> <property name="hibernate.connection.password">password</property> <property name="hibernate.connection.url">jdbc:postgresql://localhost:5432/gunnar</property> <property name="hibernate.connection.username">postgres</property> <property name="hibernate.default_schema">public</property> <property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property> </session-factory> </hibernate-configuration>

package hello; import org.hibernate.Session; public class Main { public static void main(String[] args) { HibernateUtil util = new HibernateUtil(); Session session = util.getSession(); } }


package hello; import javax.persistence.Entity; import javax.persistence.Id; import javax.persistence.Table; @Entity @Table(name="teste") public class Teste { @Id private int id; public int getId() { return id; } public void setId(int id) { this.id = id; } }


Any help is appreciatted.

best regards
Gunnar

Jaikiran Pai wrote:The output looks right to me. Were you expecting something else?

Since I am starting studying EJB3 now....so I didn't know what to expect.
Although I was expecting an Object of my bean type, someone in another forum explained to me that EJB returns a proxy for the object.

Now I would like to know how to use a local interface, could you please help me?
Is it possible (and a good practice) to use a local interface in the client?

best regards

Hello all!

I need some help with the following:

Web Server - Jboss 5.1.0 GA
IDE - eclipse

I created a EJB project using eclipse and the following files:

ejb.server.HelloWorld.HelloWorldBeanRemote
package ejb.server.HelloWorld; import javax.ejb.Remote; @Remote public interface HelloWorldBeanRemote { public void sayHelloRemoto(); }

ejb.server.HelloWorld.HelloWorldBeanLocal
package ejb.server.HelloWorld; import javax.ejb.Local; @Local public interface HelloWorldBeanLocal { public void sayHelloLocal(); }


ejb.server.HelloWorld.HelloWorldBean
package ejb.server.HelloWorld; import javax.ejb.Stateless; /** * Session Bean implementation class HelloWorldBean */ @Stateless public class HelloWorldBean implements HelloWorldBeanRemote, HelloWorldBeanLocal { /** * Default constructor. */ public HelloWorldBean() { // TODO Auto-generated constructor stub } @Override public void sayHelloRemoto() { // TODO Auto-generated method stub System.out.println("Remoto"); } @Override public void sayHelloLocal() { // TODO Auto-generated method stub System.out.println("Local"); } }


and the client

package ejb.client; import java.util.Properties; import javax.naming.InitialContext; import javax.naming.NamingException; import javax.rmi.PortableRemoteObject; import ejb.server.HelloWorld.HelloWorldBean; import ejb.server.HelloWorld.HelloWorldBeanRemote; public class EJBClient { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub try { Properties properties = new Properties(); properties.put("java.naming.factory.initial","org.jnp.interfaces.NamingContextFactory"); properties.put("java.naming.factory.url.pkgs","=org.jboss.naming:org.jnp.interfaces"); properties.put("java.naming.provider.url","jnp://localhost:1099"); InitialContext context = new InitialContext(properties); Object bean = context.lookup("HelloWorldBean/remote"); Object bean2 = context.lookup(HelloWorldBean.class.getSimpleName()+"/remote"); HelloWorldBeanRemote beanH = (HelloWorldBeanRemote)PortableRemoteObject.narrow(bean, HelloWorldBeanRemote.class); //Object bean3 = context.lookup("HelloWorldBean/local"); //bean.sayHelloRemoto(); System.out.println(bean); System.out.println(bean2); System.out.println(beanH); } catch (NamingException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }

I execute the project from Eclipse and my ejb is deployed as I get the message:
11:27:41,999 INFO [EJBContainer] STARTED EJB: ejb.server.HelloWorld.HelloWorldBean ejbName: HelloWorldBean
11:27:42,018 INFO [JndiSessionRegistrarBase] Binding the following Entries in Global JNDI:

HelloWorldBean/remote - EJB3.x Default Remote Business Interface
HelloWorldBean/remote-ejb.server.HelloWorld.HelloWorldBeanRemote - EJB3.x Remote Business Interface
HelloWorldBean/local - EJB3.x Default Local Business Interface
HelloWorldBean/local-ejb.server.HelloWorld.HelloWorldBeanLocal - EJB3.x Local Business Interface




When I run the client as a JAVA APPLICATION I get the output:
Proxy to jboss.j2ee:jar=EJB.jar,name=HelloWorldBean,service=EJB3 implementing [interface ejb.server.HelloWorld.HelloWorldBeanRemote]
Proxy to jboss.j2ee:jar=EJB.jar,name=HelloWorldBean,service=EJB3 implementing [interface ejb.server.HelloWorld.HelloWorldBeanRemote]
Proxy to jboss.j2ee:jar=EJB.jar,name=HelloWorldBean,service=EJB3 implementing [interface ejb.server.HelloWorld.HelloWorldBeanRemote]

What I am doing wrong that I dont get the object I want from the Container?

Hello All

Passed one more.
I had one extra voucher to use so i took this test. I prepared 2-4 hours reading about the topics.

Regards

Hello all ranchers,

I would like to share with you that i passed the scwcd 5 exam with 86%.

I read the notes on the j2ee patterns from Peabody(thanks, i got 83% on patterns) and ready HF second edition 3-4 times and used jwebplus as my mock. Didnt liked the final book mock exam...

I got 39 correct answers on the final mock exam and the 20 points rule did not applied to me (thanks God), it only served to destroy my confidence....on the other hand...jwebplus was really helpfull to understand concepts and to learn api,etc.

Thank you all for answering my last time questinos...

best regards to all

Gunnar

Does it happen in the first client request or it can happen at deploy time?
What the specs say about it?

regards

Even if the expression was inside the for tag it would not compile. Expressions doesnt have access to the tag vars.

correct me if im wrong.

regards
Gunnar
[ December 04, 2008: Message edited by: Gunnar Maluf ]

Is the filter obligated to call chain.doFilter(req,resp)?

Thank you Deepak Jain!

regards
Gunnar

1. <%@ taglib prefix="c" uri="http://java.sun.com/jsp/ jstl/core" %> 2. <%@ taglib prefix="tables" uri="http://www.javaranch. com/tables" %> 3. <%@ taglib prefix="jsp" tagdir="/WEB-INF/tags" %> 4. <%@ taglib uri="UtilityFunctions" prefix="util" %> What about the above taglib directives would cause the JSP to not function? A. Line 4 is wrong because the prefix attribute must come before the uri attribute. B. Line 3 is wrong because there is no uri attribute. C. Line 4 is wrong because the uri value must begin with http:// D. Line 3 is wrong because the prefix jsp is reserved for standard actions. JSP v2.0 section 1.10.2; hf 314, 502 -Option A: attributes can be in any order. -Option B: when using Tag Files, tagdir is used instead of uri. -Option C: a URI simply must match how the TLD is identified by the container. -Option D: the jsp prefix is reserved for standard actions.

Option C is marked as beeing the correct answer. I disagree. I think D is the correct answer.

Can someone confirm it please?

regards

Originally posted by Chatura Dilan:
I added <%@ page isErrorPage="true" %> to both exception pages, but i get the same results, i don't know why? anyone have this issue? anyway what do we select if we get this kind of question in the exam?

This is wrong. You have to add <%@ page errorPage="arException.jsp" %> in the
index.jsp

regards
Gunnar

Originally posted by Chatura Dilan:
hello Joy here is the code

My DD

<?xml version="1.0" encoding="UTF-8"?> <web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee <a href="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">" target="_blank" rel="nofollow">http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"></a> <session-config> <session-timeout> 30 </session-timeout> </session-config> <welcome-file-list> <welcome-file>index.jsp</welcome-file> </welcome-file-list> <error-page> <exception-type>java.lang.ArithmeticException</exception-type> <location>/arException.jsp</location> </error-page> <error-page> <exception-type>java.lang.Throwable</exception-type> <location>/tException.jsp</location> </error-page> </web-app>


index.jsp

<%@page contentType="text/html" pageEncoding="UTF-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>JSP Page</title> </head> <body> <% int i = 10 / 0; %> </body> </html>

arException.jsp

<%@page contentType="text/html" pageEncoding="UTF-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>JSP Page</title> </head> <body> <h2>Arithmatic</h2> </body> </html>


tException.jsp

<%@page contentType="text/html" pageEncoding="UTF-8"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>JSP Page</title> </head> <body> <h2>Throwable</h2> </body> </html>

The book says: Declaring a catch-all error page
This applies to everything in your web app�not just JSPs. You can override it in individual JSPs by adding a page directive with an errorPage attribute.

If you override it, it works.

Originally posted by Jan Sterk:


Why is 19.5 wrong?

I think the 19.5 means that the web.xml does not define *where* phisically your deployment should happen. It defines the configuration of your web app and not the deployment itself.

regards,
Gunnar

yup...

But i remember seeing a question using something like <%= ${movieList[i]} %> in JWebPlus saying the i var was only visible inside the scripts.... I tried this approuch and couldnt make it work.

regards
Gunnar

I have the following code:

<%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Insert title here</title> </head> <body> <table> <%for(int i = 0; i < 10 ; i++){ %> <tr> <td> ${movieList[i]} </td> </tr> <%} %> </table> </body> </html>


Is it possible to make this work?

regards
Gunnar