persistence

I have a question about persistence.xml config parameter "transaction-type". If I set this parameter to value "RESOURCE_LOCAL", than application run…

Scenario: client would logon, create their own TableModel and TreeModels and be able to access it at a later time. TableModel and TreeModel which…

I found some docs for mongodb persistence in Akka 1.0, but can't seem to find any mention of it in the 1.2 docs. Was it removed? I also can't find…

Is CouchDB or CouchBase suitable as a persistence NoSQL-based solution for storing users chat history and statistics? Since chat history would…

I'm developing a J2EE 6 Web Application, using a MySql 5.02 DataBase. I'm trying to generate a hash digest of the ID, every time I create a new…

I've a big problem (sorry for my poor english). I attach directly my code: public bool isServerOnline() { Boolean ret = false; try { HttpWebRequest…

Are Websphere MQ messages stored in a database or filesystem? Can I configure it to use MySQL?

I have a database on a local machine that is queried repeatedly as fast as possible. Currently I am executing mysql_real_connect() before each query…

I'm using EclipseLink (JPA 2.0) on Netbeans 7.0 with a MySQL database - which I configured according to this screencast . But sometimes when I…

I need to set the zeroDateTimeBehavior property to convertToNull in my EclipseLink configuration. I am using a properties file where I am using…

I like to use ltree from PostgreSQL contrib in one of my projects, and i like to use some kind of ORM layer (Hibernate, EclipseLink) on top of the…

I am using doctrine as for persisting objects in my Zend-framework project now I want my drop down box populated with some the enum field in the DB…

hi, i was wondering if anyone knew how to lock a database, and then dequeue the waiting jobs. so i have a hashtable in a database, and im storing…

Hi, I am developing a mobile app for Android and iOS using jQuery Mobile. The app will be deployed to Android and iOS devices utilizing Phonegap. My…

class Cart include Mongoid::Document embeds_many :cart_items def calculate_prices # Set some fields end def remove_item(item) # what goes here?…

Not sure if I'm asking the right question so please bear with me! Bit of an NHibernate noob. We're using Fluent NH and have the following id…

I was trying to figure out if using persistence on my load balancer would allow for better utilization of apache spawned processes if paired with…

hi guys i want to pass a parameter in the jpql as set in an update statement. here is the statement: Query query = entityManager.createQuery("UPDATE…

I'm looking for a efficient way to store many key->value pairs on disc for persistence, preferably with some caching. The features needed are to…

Hello everyone. In my current project i have an @Entity bean, with, among others, an int[] field, which should match an integer[] field in my…