About @Embeddable

forum_thread

how explorer queries work

i'm curious as to how the explorer is able to execute queries when its obviously not aware of the object model that i built. the reason is because i have an application where i want to be able to execute somewhat generalized queries and i won't know what classes are in the object model ahead of time. this is especially curious to me in client-server mode since the .jar with the object model classes is on the server side, not the client side where explorer is running. #1 2012-05-02 16:09 i'm curious as to how the explorer is able to execute queries when its obviously not aware of the object mode ...

 
release

2.7.0

Release date: 2017-03-09 Download (5.58 MB) Binary:  objectdb-2.7.0.zip Version 2.7.0 Extended maximum supported entity object size ...

 
release

2.7.1

Release date: 2017-04-06 Download (5.58 MB) Binary:  objectdb-2.7.1.zip Version 2.7.1 Fixed a critical bug that may cause database ...

 
release

2.5.0

Release date: 2013-04-16 Download (5.42 MB) Binary:  objectdb-2.5.0.zip You should start by following a  tutorial or reading the manual ...

 
release

2.2.7

Release date: 2011-06-14 Download (5.13 MB) Binary:  objectdb-2.2.7.zip You should start by following a  tutorial or reading the manual ...

 
forum_thread

Some details about db behavior

Suppose I have two entities... A B -> A B has a ManyToOne relationship with A. When my database is empty and I persist a valid B entity (that contains actual A reference) I observe some behaviour that I'm not sure I understand. #1 2014-06-26 15:16 Suppose I have two entities... A B -> A B has a ManyToOne relationship with A. ...

 
release

2.4.7

Release date: 2013-02-25 Download (5.42 MB) Binary:  objectdb-2.4.7.zip You should start by following a  tutorial or reading the manual ...

 
issue

Error reading UTF string (Serialized Objects in Explorer)

This is the message I get for attached db and this query: Bug Version: 2.3.6 Priority: Normal Status: Fixed Replies: 6 Type:  Bug ...

 
manual

Comparison in JPQL and Criteria API

Explains how comparison operators can be used in JPQL queries, including in comparing null values. Most JPQL queries use at least one comparison operator in their WHERE clause. This page covers the following topics: Comparison Operators Comparing NULL values IS [NOT] NULL Comp ...

 
forum_thread

Dirty checking

Hi, wondering if anyone knows the best way to detect which objects have been changed in the database. ie: which objects, and which collections of objects, have been dirtied.     ... classes can't register change listeners? ie: @Embeddable @EntityListeners (Listener.class) So, having to go and make ...