I've found some contradicting information on the net. Does anyone know whether Hibernate filters affect the generated sql, or is it just filtering the data as it's read from the database? Thanks! ...
I try to be quick. In fact, one of my jUnit test is failing when running the Maven command of my project (mvn install, so with the Surefire plugin) while it's successful when I run it in Eclipse. I tried many things and the only difference I managed to see is that : - With Maven/Surefire in debug-mode, in the Hibernate-SessionFactory I...
I started developing one Blog Website based on Hibernate and Struts. I was wondering how to maintain the structure of the directory and files. That is, the presentation, hibernate DB access layers, controllers and business layers. Any suggestion? Regards Swar ...
I'm having a bit of trouble mapping the following: public class Operation { private Integer id; private String name; private List<Item> items = new ArrayList<Item>(); //set/getters/hashcode/etc. omitted public void addItem(Item i,Operation end) { i.setOperationStart(this); i.setOperationEnd(end}; items.add(i); ...
Hi all, i have an entity that contains two other entities with @ManyToOne relationship. @Entity public class A extends Serializable{ @Id @GeneratedValue(strategy=GenerationType.IDENTITY) private Long id; @ManyToOne @Cascade(CascadeType.SAVE_UPDATE) private B b; @ManyToOne @Cascade(CascadeType.SAVE_UPDA...
any expert tell me where i find a basic example of Srtuts2+Spring+Hibernate ...
I want to use hibernate against an existing database. I need to mostly read data from the db and very occasionally modify a field. I want to be able to update a single field in the row, but i need to make sure that all the other fields are not touched. Does hibernate guarantee that a field will be written back the same as it was writt...
I'm currently using grails with classes storing java.util.Date fields als DATETIME. However I need the precision / miliseconds to be stored as well which I think is not possible with MySQL. If I switch to PostgreSQL, will it store my Dates with milisecond precision (or is it easy to configure it this way)? ...
I have a maven project A that use hibernate-annotations 3.4.0.GA which use the slf4j-api version 1.5.5 (checked through the dependency tree in the pom.xml file). Further project A specifies slf4j-log4j12 version 1.4.2 as a dependency. I have another maven project B which depend on project A. In project B I have specified the following d...
Hi, I read that 'length' attribute in hibernate mapping file for a table column is optional. Does it truncate data while inserting into database if length exceeds the column length? Thanks Nayn ...
Will the Hibernate caching(1st, 2nd, or Query) work when I use JdbcTemplate? I got to know that the caching is one of the advantage in using ORM instead of traditional JDBC. So, If I got to use Hibernate's JdbcTemplate, still can I enjoy the benefits of hibernate caching? ...
i get this exception when i was running an application please give me a solution in my mapping file like as follows: <?xml version="1.0"?> <!DOCTYPE hibernate-mapping PUBLIC "-//Hibernate/Hibernate Mapping DTD//EN" "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"> <hibernate-mapping> <class name="mobilserv....
I am trying to generate hibernate-mapping from POJOs with hibernate annotations. Then I want to use liquibase to generate database schema. So I need indexes to be defined in my POJOs. Sample POJO: @Entity public class A { @Id @GeneratedValue private Long id; @Index(name = "IDX_NAME") @ForeignKey(name="sd") p...
I need to restrict the resulting rows from each table/object depending on my security rules per logged user. I thought to use implement PreLoadEventListener. Regarding performance - how expensive is it to use onPreLoad for each entity? does Hibernate assign the relevant listener via Reflection? Is it done once per Hibernate session o...
It seems impossible to me to have a natural-id in a component. public class User { private IAccount account; public User(string name, string password){ account = new Account() { UserName = name, Password = password }; } } public class Account : IAccount { public st...
Something of an novice with HSQL and Hibernate... em.getTransaction().begin(); for (Activity theActivity : activities) { em.persist(theActivity); } em.getTransaction().commit(); em.close(); followed by... EntityManager em = emf.createEntityManager(); em.getTransaction().begin(); System.out.println("QUERY:: " + em.createQuery("S...
I'm wondering why hibernate generates 1 delete per entity on a child table instead of using one delete on the foreign key Here's the hibernate.cfg.xml (No i's not the next SO :-t <hibernate-configuration> <session-factory> <property name="hibernate.connection.url">jdbc:hsqldb:file:testdb;shutdown=true</property> <pr...
Hi everybody, I have two tables in two separate oracle databases (not schemas) that I need to join in Hibernate. Currently, I have two hibernate sessions going out to the separate databases. Before anybody says look at Hibernate Shards, I have spent a better part of a day looking at that sub-project and have found that: it is for hor...
when I use the DAO.update(userbean), session.SaveOrUpdate(e);throw the Exception:different object with the same identifier value was already associated with the session the function is like next: public E save(E e) { Session session = null; try { session = sessionFactory.openSession(); log.debug("session="+s...
I seem to be unable to create a query with a criterion which refers to a property inside a Embedded class. When i use "entity.embedded.property" it fails. If i create an alias of "entity.embedded.property" to itself the query works...Any tipes will be appreciated... ...