About properties

forum_thread

Optimistic lock

Hello When I get an optimistic lock on an object, refresh(), start trans and persist?  Will the changes made to the object before the violation be retained or must they be duplicated in the retry code?  Assuming it affects only one object.  tia. #1 2015-02-12 20:31 Hello When I get an optimistic lock on an object, refresh(), start trans and persist?  Will the chan ...

 
forum_thread

Connections pool

Hi! Does ObjectDB keeps and reuses a pool of connections as MySQL JDBC driver does?   #1 2013-10-28 17:28 Hi! Does ObjectDB keeps and reuses a pool of connections as MySQL JDBC driver does? I mean when it's ...

 
tutorial

Step 6: Design a BIRT Report Table

Explains how to design a BIRT report table using ObjectDB and JPA.... automatically): Use the properties table to complete the table design (e.g. change the background ...

 
api-jdo

javax.jdo.annotations.Key

Annotation for the key of a map relation.(Annotation of JDO)

 
api-jdo

getOptimistic()

Optimistic transactions do not hold data store locks until commit time.(Method of javax.jdo.Transaction)

 
api-jpa

AttributeOverride.name

(Required) The name of the property whose mapping is being overridden if property-based access is being used, or the name of the field if field-based access is used.(Annotation Element of javax.persistence.AttributeOverride)

 
forum_thread

Should I be able to persist a JFrame (or gui components in general)?

    I did the following: 1. (using Netbeans 8.02 & last available java 7 sdk) I sort of follow your tutorial(s) while applying the ideas to a sample that came with the IDE called GUIFormExamples (under samples). ... done with the regular Netbeans: go to top level project properties (my case GUIFormExamples) and add libraries. Add Java EE 6 API ...

 
api-jdo

addCategory(categoryName)

Add the members (fields or properties) of the named category to the set of members in this FetchGroup.(Method of javax.jdo.FetchGroup)

 
release

2.0.1

Release date: 2010-10-05 Download (3.39 MB) Binary:  objectdb-2.0.1.zip ObjectDB 2 is already in use in production in several applications and is ...

 
manual

Logical Operators in JPQL and Criteria API

Explains how to use AND, OR and NOT in JPQL queries. Logical operators in JPQL and in JPA criteria queries enable composition of complex JPQL boolean expressions out of simple JPQL boolean expressions. This page covers the following topics: Logical Operators ...