About SET

forum_thread

migration path from JPA / Hibernate

Hi. Is there a conversion tool or documentation that is of help when migrating an existing JPA solution to ObjectDB? Any recommendations or known pitfalls when it comes to ...   ... Just add objectdb.jar to the classpath and set ObjectDB as the provider in the persistence.xml file . About the ...

 
tutorial

Step 5: Add a JSP Page

Explains how to add a JSP page that uses JPA to a NetBeans Java EE 6 (J2EE) web application.... from the request's "guests" attribute that is set by the servlet in the previous step). The next step (and the last in ...

 
manual

Online Backup

Online Backup enables backing up an ObjectDB database while it is in active use by applications. The ability to create a backup while the system is running is essential in applications and services that have to be available 24/7/365. An ObjectDB database can be backed up by simply copying or archiving the database file while the database is offline (i.e. when it is not open in an ObjectDB server and not in use by any application), since an ObjectDB database is stored as an o ...

 
forum_thread

Object DB vs EclipseLink/TopLink: Unloaded relationships in detached entities

This topic is for those considering migrating from EclipseLink JPA or TopLink to ObjectDB JPA. ... to me by ObjectDB support, while the entities in a result set list from a JPQ query are initially managed (and so lazy loading would ...

 
tutorial

Step 5: Add a JSP Page

Explains how to add a JSP page that uses JPA to an Eclipse Web Application.... from the request's "guests" attribute that is set by the servlet in the previous step). The next step (and the last in ...

 
forum_thread

Optimization of Map Queries

hi! I am having loads and loads of occurrences of something like ((com.test.MyEntity) $1.map.get('com.test.MyEntity')).someProperty ... ((com.test.MyEntity) $1.map.get('com.test.MyEntity')).someOtherProperty .. ((com.test.MyEntity) $1.map.get('com.test.MyEntity')).someMoreProperties I need to use full qualified names for casting as well as for the map keys because same entity simple names may occur multiple times. Now I've got two questions: #1 2012-01-18 07:13 hi! I am having loads and loads of occurrences of something like ( ( com . test . ...

 
forum_thread

JDO sequences from ORM file

I want to use sequences in JDO without using annotations. Normally this is done with a package-X.orm file, where X is a value passed to the PersistenceManagerFactory as the value of property "mapping". I'm encouraged to see that the JDO zip that comes with ObjectDB includes the DTD/XSD for this type of file, though I can't see a mention of it in the manual. #1 2013-03-12 17:07 I want to use sequences in JDO without using annotations. Normally this is done with a package-X.orm file, where ...

 
tutorial

Step 5: Add a JSP Page

Explains how to add a JSP page that uses JPA to a NetBeans Web Application.... from the request's "guests" attribute that is set by the servlet in the previous step). The next step (and the last in ...

 
api-jpa

javax.persistence.ManyToOne

Defines a single-valued association to another entity class that has many-to-one multiplicity.(Annotation of JPA)

 
forum_thread

Items in list are doubled, when the entity class is not enhanced

Dear all, I have a problem with adding items (entities) into other entity list. When the classes are not enhanced, added items are doubled. Here is an example: #1 2011-06-09 08:24 Dear all, I have a problem with adding items (entities) into other entity list. When the classes are not ...