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openejb jpa jaas module

    hello , i've finished jpa jaas module. Here it is :   package com.bayner.auth; import com.bayner.jpa.Principals; import com.bayner.jpa.UserInfo; import com.bayner.jpa.UserPrincipal; ... @ Override public final boolean commit ( ) throws LoginException { if ...

 
tutorial

Step 3: Define a Spring DAO Component

Explains how to define a JPA DAO component (bean) in a NetBeans Spring MVC JPA web application project.... (such as persist ) by transaction begin and commit . The next step is adding a Controller Class ...

 
forum_thread

Replicated cluster recovery

If I create a replicated database cluster as per http://www.objectdb.com/java/jpa/tool/replication what is the behaviour of the master database after a failure? For example, say I have MasterDB and SlaveDB in the cluster. If MasterDB goes offline the application will automatically switch to SlaveDB. When MasterDB comes back online it will have missed any activity that occured during the downtime. #1 2011-04-08 16:07 If I create a replicated database cluster as per http://www.objectdb.com/java/jpa/tool/replication what is the be ...

 
tutorial

Step 3: Define a Spring DAO Component

Explains how to define a JPA DAO component (bean) in an Eclipse Spring MVC JPA web application project.... (such as persist ) by transaction begin and commit . The next step is adding a Controller Class ...

 
forum_thread

Calendar in Criteria Querys

Hi, i am having troubles creating criteria querys for Calendar objects. As far as I can see CriteriaBuilder has no methods for checking if one Calendar is bevor or after another. Javas Calendar Class got such methods, but i dont know how to use those in my query. ... ; em. getTransaction ( ) . commit ( ) ;   CriteriaBuilder cb = ...

 
issue

Blocked by find

I have a container object which wraps an objectdb database. There is a "putIfAbsent(String id, Object obj)" method which is synchronized and attempts to load an object by id using the EntityManager "find" method. If nothing is returned from the db the passed object is persisted to the db. I have 5 threads which use this method. In a run today one of the threads seems to have got stuck somewhere in the find. The thread dump looks like: Bug Version: Priority: High Status: Fixed Replies: 23 Type:  Bug ...

 
issue

Internal exception

Hello. We got the following stacktrace. Can you explain me what this internal exception means and why it was thrown? It only happens when the entities are enhanced. Best regards BTC ES   ... running the mapped by query (due to changes since last commit/flush) in order to retrieve the mapped by instances. The stack trace ...

 
forum_thread

Problem with distinct select, order by and equivalent alias/attribute path

Hi, while working with a (standard-)JPA-query generating framework we run into an exception when ordering the results of some projection when the order by expression is different (though logically equivalent) to the projection expression. Here is the example: ...   em. getTransaction ( ) . commit ( ) ;     String q1 = "select ...

 
forum_thread

How to define database structure and insert some initial objects from scratch

Hi from Spain! We're evaluating ObjectDB and we have some questions: - How can we create the initial database structure of our application? We know objectdb is all about objects and probably not need initial structure like tables, but how can we populate some "tables" with initial data from a script? In SQL world we have scripts like "insert into..." - Can we use main objectdb.jar library as jdbc driver for ETL software like Kettle? How about migrating data from another database system? ... } em. getTransaction ( ) . commit ( ) ;   // Close the database ...

 
forum_thread

java.sql.Timestamp with milliseconds

Using JPA with other providers java.util.Date will not provide support to store milliseconds, this can usually be overcome using (see here http://docs.oracle.com/javase/1.5.0/docs/api/java/sql/Timestamp.html) @Id @Column(name = "STMP") @Temporal(TemporalType.TIMESTAMP) private Timestamp timestamp; However with ObjectDB the milliseconds are not being stored, as shown this is an ID field and I am encountering duplicate ID errors trying to create multiple entries in the same second. ... } em. getTransaction ( ) . commit ( ) ;   em. close ( ) ...