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Upgrade from ObjectDB 1.0

The following pages should be read by ObjectDB 1.0 users: What is new in ObjectDB 2.0? How to upgrade from ...

 
issue

Database File Compression

ObjectDB database files are usually smaller than database files of other Database Management Systems (object and Relational) but still, an additional internal compression is possible. Usually smaller files are also faster because less I/O operations are required and memory cache can be used more efficiently. But compression and decompression consumes CPU time. Therefore, the effect of compression on Object databases is currently unknown. Feature Request Version: Priority: Normal Status: Active Replies: 0 Type:  Feature Request ...

 
forum_thread

New Web Application Tutorials

New ObjectDB/JPA tutorials have been published today: Eclipse/JPA Web Application Tutorial NetBeans/JPA Web Application Tutorial The new tutorials demonstrate how to build a simple database driven web application using ObjectDB and JPA. Understanding these tutorials requires some familiarity with basic concepts and principles of Java web applications, including Servlets, JSP and HTML. #1 2010-06-07 10:12 New ObjectDB/JPA tutorials have been published today: Eclipse/JPA Web Application Tutorial NetBeans ...

 
manual

UPDATE SET Queries in JPA/JPQL

Explains how to apply server side bulk update using a JPA/JPQL query.... an active transaction and the changes are visible to other users (which use other EntityManager instances) only after commit . ...

 
issue

Support for case-insensitive indexes

I would like to request support for case insensitive string indexes. Case-insensitive search is a very common requirement and adding a separate field for every indexed field is a pain. Regards, Natalia.   Feature Request Version: 2.3.7 Priority: Normal Status: Active Replies: 0 Type:  Feature Request ...

 
api-jdo

setFilter(filter)

Set the filter for the query.(Method of javax.jdo.Query)

 
api-jdo

javax.jdo.spi.JDOImplHelper

This class is a helper class for JDO implementations.(Class of JDO)

 
api-jpa

TableGenerator.schema

(Optional) The schema of the table.(Annotation Element of javax.persistence.TableGenerator)

 
api-jdo

javax.jdo.JDOObjectNotFoundException

This class represents exceptions caused by the user accessing an object that does not exist in the datastore.(Exception of JDO)

 
api-jdo

setDoubleField(pc, field, currentValue, newValue)

Mark the field as modified by the user.(Method of javax.jdo.spi.StateManager)