I have a web app (using Hibernate, and I cannot avoid that because is one of the point of the exam test ) for a university project in wich I need a login functionality. After I run some test with Jmeter (basicaly http get e post in the login) I found that after 20 test the webapp stop working returning this message : bean userList not f...
Possible Duplicate: How to implement AOP with Spring i am using spring for hibernate only not as spring mvc and i am using jsf2.0 and now i need to implement AOP but I am not getting at what to do i am not following Spring MVC.. ...
When we are updating a record, we can use session.flush() with Hibernate. What's the need for flush()? ...
I am running a MySQL 5.1 server and Hibernate 3.5.1 / JPA2 for ORM. Everthing seems fine until I drop some tables manually. From then on, unit tests fail with Hibernate no longer creating certain tables. Changing the jdbc url from url=jdbc:mysql://localhost:3306/dbjava?createDatabaseIfNotExist=true to url=jdbc:mysql://localhost:3306...
I know that SchemaExport should be my friend. But I am using liquibase and want to execute the DDL - pure sql statements - generated from liquibase to recreate the database before every test method. Do you see problems with the following code? I wonder that this seems to be so complicated ... public static int executeScript(String sqlF...
Hi all, I've got a Hibernate entity, called Event, which has a one-to-many metadata entity, EventData. Given the following Event: EventId: 1 EventHash: broccoli With the following EventDatas: EventDataId: 1 EventId:1 Field: tag Content: tagme EventDataId: 2 EventId: 1 Field: tag Content: anotherTag How do I create a Criteria que...
Hi, in order to keep certain application variables I may need to change when the application is running without having to restart it, I'm thinking in implementing a Grails service and a Quartz job so every X minutes, the service reloads the entire "parameters" table - and I query the service for a parameter's value. Now, is this a good ...
Hi I have Company object and @OneToMany(fetch = FetchType.EAGER, cascade = { CascadeType.ALL }, mappedBy = "company") @Column(nullable = false) Set<User> getUsers() Do you recommend caching the getUsers collection performance wise? ...
I have a many-to-many relationship between the two entities called events and artists, both are annotated to be lazy loaded. When I load an artist, I initialize its events because the session will be closed afterwards using Hibernate.initialize(artist.getEvents()); A test in pure Java works fine and I can access the events and its pro...
Env: JPA 1, Hibernate 3.3.x, MySQL 5.x We auto generate database schema using hbm2ddl export operation. Would it be possible to generate a default value for a certain @Entity member during SQL generation. (e.g. archive field in mytable entity class. create table mytable ( ... 'archive‘ tinyint(1) default ’0 ’, ... ) ...
Hi, I'm trying to access the database from Hibernate Interceptor (I need to audit only specific objects that are defined in a different table) and the access is impassable (I get exceptions). Is there a way to access database in interceptor? My AuditTrailInterceptor is: public class AuditTrailInterceptor extends EmptyInterceptor { ...
Hi I am using Hibernate / Spring / Maven / MySQL and unit tests with JUnit. Up to yesterday, my testdata persisted in the database even after the test run was completed. I configured the hell out of this day and all of the sudden all data are being deleted after every test run. Quite sure, this is no bug, but a config issue. Nevertheles...
Hello guys, I am trying to build a login page using hibernate and struts2. My design is as follows. Each login user has a role. Many users can have the same role. So my class are: User.java @Entity @Table(name = "user", catalog = "ciner") public class User implements java.io.Serializable { private Integer userId; private Role r...
Hi My basic question is: How can I force Hibernate to make float NULLable and accept NULL for float, datetime, blob, respectively? I really mean NULL, not (float) 0.0. Even worse, when I try to store an object with the desired NULLable fields actually being NULL and using entity manager, I get errors for attributes, which are marked as...
i am trying to use aop pointcut stuff for transaction but gettig error i am using hibernate too. I am following this : http://static.springsource.org/spring/docs/2.5.x/reference/transaction.html Before that i was using hibernate+spring sessionFactory and all that.. Error : WARNING: java.lang.IllegalStateException: ContainerBase.addCh...
How many connection will hold for a single hibernate session where there is only one DB? ...
I have an abstract MappedSuperClass, Participant, which is extended by three kinds of 'Participant'. Each one then uses its own kind of 'Project', also an abstract MappedSuperClass. However, I want the base class to know about Projects so I can write generic code to interact with Participants. How do I specify this using Hibernate annota...
Hi try to create batch execution list of object to SqlServer through Hibernate DAO . my DAO code as follows: @Override public void save(List<Tagihan> listTagihan) { logger.debug("save list invoked"); Session session = sessionFactory.openSession(); try { session.beginTransaction(); int ...
I have the following method in my Java application's DAO layer: public void save(Employee emp) { System.out.println("emp type: " + emp.getClass().getName); getHibernateTemplate().save(emp); System.out.println("object saved!"); System.out.flush(); } The employee class does not extend from any other classes and has t...
NHibernate (for .Net) has an interface called IMultiQuery which you can instantiate an implementation for using ISession.CreateMultiQuery(). A multi-query allows one to run multiple hql statements in a single batch. I can't seem to find an equivalent feature in Hibernate (for Java). Multi-query would be perfect for the java application ...