persistence.xml

I am using tomcat connection pool, jpa, hibernate. The datasource i created in context.xml of tomcat works fine if I try to get it using : source = (DataSource) ((Context) c.lookup("java:comp/env")).lookup("jdbc/kids"); but if i specify this jndi datasource in persistence.xml <persistence-unit name="kids-tomcat" transaction-type="JTA"> <jta-data-source>jdbc/kids</jta-data-source> </persistence-unit> I am getting following exception: org.hibernate.service.jndi.JndiException: Unable to lookup JNDI name [jdbc/kids] Any idea why it could happen ! Finally it worked today after i specified the

I am using JPA for a java class and having trouble putting the persistence XML file where it should be. The IDE i am using is Eclipse Helios. Eclipselink jar files are downloaded and added to my JRE System Library and all. I wrote up the persistence.xml with the tag after getting the following error : Exception in thread "main" javax.persistence.PersistenceException: No Persistence provider for EntityManager named customers Provider tag: <provider>org.eclipse.persistence.jpa.PersistenceProvider</provider> The program still doesn't run so i am wondering where should I place persistence.xml (i.e

I want to let the persistence provider (EclipseLink 2.5.0) automatically create the tables in the, already existing, database by using the persistence unit property "javax.persistence.schema-generation.create-script-source" and a valid SQL-DDL-script. persistence.xml: <property name="javax.persistence.schema-generation.create-script-source" value="data/ddl.sql"/> ddl.sql: USE myDatabase; CREATE TABLE MyTable ( id INTEGER NOT NULL AUTO_INCREMENT, myColumn VARCHAR(255) NOT NULL, PRIMARY KEY (id) ) ENGINE = InnoDB DEFAULT CHARACTER SET = utf8 DEFAULT COLLATE = utf8_bin; But I got the following

I'm trying to persist the same entity to both MySQL and Postgres databases (this is primarily to identify any inconsistencies, and work out the details of any issues doing the dual-write -- which I've run into here). The articles I've found have all described solutions that depend on additional frameworks. I'm trying to solve this using Glassfish 4.0 out-of-the-box, JPA 2.1 with EclipseLink 2.5 as the JPA provider. I'm using Eclipse, and realize that the IDE doesn't support configuring multiple persistence units in the persistence.xml file, so I'm writing the XML for that directly. I was

I've a main method using SchemaUpdate to display at the console what tables to alter/create and it works fine in my Hibernate project: public static void main(String[] args) throws IOException { //first we prepare the configuration Properties hibProps = new Properties(); hibProps.load(Thread.currentThread().getContextClassLoader().getResourceAsStream("jbbconfigs.properties")); Configuration cfg = new AnnotationConfiguration(); cfg.configure("/hibernate.cfg.xml").addProperties(hibProps); //We create the SchemaUpdate thanks to the configs SchemaUpdate schemaUpdate = new SchemaUpdate(cfg); //The

Does anyone know a link, post, book or something else where are explained and nominalized all properties that you need and can use in persistence.xml file? Piotr Nowicki The JPA 2.0 supported properties ( javax.persistence.* ) can be found in JPA 2.0 specification . Vendor-specific properties can be found in appropriate vendor documentation: Hibernate properties ( hibernate.* ) EclipseLink properties ( eclipselink.* ) Ilya Full list of properties, that hibernate uses, you can find in class org\hibernate\cfg\Environment.java in Hibernate distribution. Javadoc here I think there are actually 2