Internal Website Search

a independent object and database. Thank you. Bimal Bimal kumar dalei Hi, I want to access a object which contains some value like id,name,college and address. Here it returns some address but i am not getting object value, i attach 3 java program

I've been trying to model a database that stores data in an MMORPG. With ObjectDB ... that ObjectDB outperforms a lot of other conventional table-oriented databases, but I'm wondering ... databases' design principles. After all, everything stored in player instances are unique to that player

over objects in the database. A query identification variable is similar to a variable of a Java enhanced ... that iterate over all the database objects of a specific entity class hierarchy (i.e. an entity ... over all the Country objects in the database: SELECT c FROM

, which is a collection of all the entity objects that it manages. The persistence context serves as a first level cache. An attempt to retrieve an entity object that is already managed by the EntityManager ... entity object. The scope of the persistence context is one 

_by_navigation_and_access">transparent navigation to other database objects, The ability to retrieve managed entity objects is a major advantage of JPQL. For example, the following query returns Country objects that become managed by the

objects can be deleted from the database by: Retrieving the entity objects into ... retrieve data from the database, but when executed, delete specified entity objects from the database. Removing entity objects from the database using a DELETE query may be slightly

> annotation). Storing an entity object in the database does not store methods or code ... object is stored in the database every persistent field must contain either null or a value ... (when stored in the database for the first time) is 1. For every transaction in which an entity object

To be able to store Point objects in the database using JPA we need ... the ability to store Point objects in the database and retrieve Point objects from the database: package com.objectdb.tutorial; import javax

object that failed the consistency check. No datastore resources acquired during the execution ... to become detached. Changes made to entities that have not been flushed to the database will not ... /java/jpa/EntityManager/contains_Object" title="Method of javax.persistence.EntityManager">contains

how to develop database applications using ObjectDB and JDO (Java Data Objects), the revolutionary database ... > database/jdo/manual/chapter6">Chapter 6 - Persistent Objects Shows how to store, retrieve, update and delete database objects. database/jdo/manual