Does anyone know if Hibernate 3.5 is supported under Seam 2.x (specifically 2.2.x)? I'm very interested in some of the JPA 2 features, particularly query building, but work within the Seam framework. Is this version of the library supported? Thanks in advance! ...
I have a simple entity, Code, that I need to persist to a MySQL database. public class Code implements Serializable { @Id private String key; private String description; ...getters and setters... } The user supplies a file full of key, description pairs which I read, convert to Code objects and then insert in a singl...
Every time I call JPA method its creating entity and binding query. My persistence properties are: <property name="hibernate.dialect" value="org.hibernate.dialect.Oracle10gDialect"/> <property name="hibernate.cache.provider_class" value="net.sf.ehcache.hibernate.SingletonEhCacheProvider"/> <property name="hibernate.cache.use_second_...
I am facing an issue with Hibernate and JPA. My requirement is column CreatedDTTM and LastUPDATEDDTTM should be populated at the DB level. I have tried following but no use. My columns are set NOT NULL. I get a "cannot insert Null into LastUpdatedDttm" exception. Any guidance is appreciated. @Column(name="LAST_UPDATED_DTTM", insertable=...
I have a JPA entity instance in the web UI layer of my application. I'd like to know at anytime if this entity has been already persisted in database or if it is only present in the user session. It would be in the business layer, I would use entitymanager.contains(Entity) method, but in my UI layer I think I need an extra attribute ind...
I need LastUpdatedDttm to be updated by SYSDATE whenever record is updated. But below annoataions do nt work as desired. SYSDATE is inserted only once and not updated for subsequent updations. Also, lastUpdDTTM is not part of sql generated by hibernate. @Generated(GenerationTime.ALWAYS) @Column(name="LAST_UPDATED_DTTM",insertable=false,...
I write same query with two approach by using NHibernate: 1- by using HQL like below public long RetrieveHQLCount<T>(string propertyName, object propertyValue) { using (ISession session = m_SessionFactory.OpenSession()) { long r = Convert.ToInt64(session.CreateQuery("select count(o) from " + typeof(T).Name + " as o" + "...
I know similar questions have been asked before. I am starting with a set of xsd-generated data objects (plus the db model is there) and need to persist these almost 1:1 to a single SQL Server database. The number of entities is small (10), and the logic required for the db insert/update/delete (mostly upserts) is thin (albeit there is ...
I'm creating a service that has read-only access to the database. I have a query cache and a second level cache enabled (READ_ONLY mode) in Hibernate to speed up the service, as the tables being accessed change rarely. My question is, if someone goes into the DB and changes the tables manually (i.e. outside of Hibernate), does the cach...
I am putting together a messaging system for a rails app I am working on. I am building it in a similar fashion to facebook's system, so messages are grouped into threads, etc. My related models are: MsgThread - main container of a thread Message - each message/reply in thread Recipience - ties to user to define which users should sub...
I have two tables with the many-to-many association. — DB fragment: loads Id Name sessions Id Date sessionsloads LoadId SessionId — Hibernate mapping fragments: /* loads.hbm.xml */ <set name="sessions" table="sessionsloads" inverse="true"> <key column="LoadId" /> <many-to-many column="SessionId" class="Session" /> </set> ...
I'm currently working on a project that makes use of Seam/Hibernate (JPA) on MySQL. I'm reconsidering moving towards PostgreSQL after investigating some of the features that it provides. My question is, is there anything I need to worry about with this configuration? Limitations? Gotchas? Things to watch out for? There will be some...
Hello I posted this on official forum but with no result. I am getting :Undefined index: enrollment error when trying to save data. My pivot model: class Model_Enrollment extends ORM { protected $_belongs_to = array('page' => array(), 'menugroup' => array()); } Model_Page protected $_has_many = array('te...
I'm trying to create a JPA Entity backed by a view which does not have an id. The rows are uniquely defined by two columns, product id and node id. How can I specify that the id for the entity is a multi-column id, and do it using xml, not annotations? ...
I'm working in ASP.NET in an application where often users want to add fields or change field names. I'd like to be able to have an xml schema in place that is parsed and a dynamic object model created from it that can be accessed throughout the application. My initial reaction is that this is not realistic. I think there is flexibilit...
Hello ... I´m new to ORMs and I have a new project I´ll do in .Net MVC. In the Model Layer I´ll create my classes: Videos and I´ll work with APIs as a DataLayer (BrightCove & YouTube APIs). So, I dont have a Relational Database as a Data Layer. Is it possible to work with an ORM (as Subsonic)? Thanks! ...
I have two NHibernate-managed entities that have a bi-directional one-to-many relationship: public class Storage { public virtual string Name { get; set; } public virtual IList<Box> Boxes { get; set; } } public class Box { public virtual string Box { get; set; } [DoNotSerialize] public virtual Storage ParentStorage { ge...
Hi, is there any javascript object database?? Something like http://www.db4o.com/ but for javascript? thanks ...
I need to build some sort of a custom CMS for a client of ours. These are some of the functional requirements: Must be able to manage the list of Pages in the site Each Page can contain a number of ColumnGroups A ColumnGroup is nothing more than a list of Columns in a certain ColumnGroupLayout. For example: "one column taking up ...
I'm writing a little homebrew ORM (academic interest). I'm trying to adhere to the TDD concept as a training exercise, and as part of that exercise I'm writing documentation for the API as I develop the class. Case in point - I'm working on a classic "getCollection" type mapper class. I want it to be able to retrieve collections of ass...