About store

manual

ObjectDB 1.0 Manual

... Chapter 6 - Persistent Objects Shows how to store, retrieve, update and delete database objects. Chapter 7 ...

 
forum_thread

Beginners questions

Hello !! I am new in JPA / ObjectDB development and I have many questions: 1. If I understood correctly, ObjectDB is an implementation of JPA standard (currently 2.0)? 1.1. Is ObjectDB on the same level like Hibernate with only difference that Hibernate stores the data in a RDBMS and ObjectDB has its own format?   #1 2017-02-10 13:12 Hello !! I am new in JPA / ObjectDB development and I have many questions:   ...

 
forum_thread

Future JDO versions?

We are about to release our first product using ObjectDB (as a small embedded store), and soon hope to release a much larger product using ObjectDB (will need an OEM license).  What really interests us is JDO.  We have been using JDO for over a decade and have found it consistently a far better API than JPA, as all kinds of features that are optional or require special extensions in JPA products, (such as large query optimisation, storage of collections of non-entities and automated management of identity) are built-in to JDO.... our first product using ObjectDB (as a small embedded store), and soon hope to release a much larger product using ObjectDB (will ...

 
manual

Detached Entity Objects

Explains detached entity objects and how to work with detached objects in JPA, including merging them into an EntityManager. Detached entity objects are objects in a special state in which they are not managed by any EntityManager javax.persistence.EntityManager JPA interface Interface used to interact with the persistence context. See JavaDoc ...

 
api-jdo

getCandidateClass()

An Extent contains all instances of a particular class or interface in the data store; this method returns the Class of the instances represented by this Extent.(Method of javax.jdo.Extent)

 
api-jdo

setRange(fromInclToExcl)

Set the range of results to return.(Method of javax.jdo.Query)

 
page

ObjectDB - Object Database for Java (JPA/JDO)

Fast Object Database for Java with JPA 2 and JDO 2 support.... Using a relational database management system (RDBMS) to store and retrieve Java objects requires slow conversions between graphs of ...

 
api-jdo

refreshAll(pcs)

Refresh the state of an array of instances from the data store.(Method of javax.jdo.PersistenceManager)

 
forum_thread

A bidirectional OneToOne association with a shared primary key

Hi, In Hibernate, it is possible (using Hibernate specific annotations) to define a bidirectional @OneToOne association that has a shared primary key, example: http://fruzenshtein.com/bidirectional-one-to-one-primary-key-association/ #1 2013-09-27 07:26 Hi, In Hibernate, it is possible (using Hibernate specific annotations) to define a bidirectional @O ...

 
api-jdo

getPersistenceManagerFactory(propsFile)

Returns a PersistenceManagerFactory configured based on the properties stored in the file at propsFile.(Static Method of javax.jdo.JDOHelper)