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8

Composite indexes

navigation between entities (directly or using JOIN). support Support
8

Retrieval by Access bug?

any reason for that. Could be any bug in ObjectDB when I retrieve by navigation a field from
8

How to install ObjectDB on my Amazon EC2?

VPS, then unzip the ObjectDB archive, then you navigate into "bin" folder of the folder
8

OR not working with isNull

IS NULL OR o.id = :userId Notice that the navigation root.get("owner").get("id") is implemented as INNER
8

Sorting problem

literal value rather than as a navigation expression), and because this constant expression is the same
8

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

is: Navigation through lazy loading from Detached Objects webel Dr Darren Kelly
8

@OneToOne query issue with OR and IS NULL

WHERE a.another IS NULL OR b.counter = 0 You missed the A instance with no another because navigation
1

ObjectDB 2.2.5

Added support of navigation through collections (as a JPQL extension). Added version display to the Server and Explorer About dialog boxes. Fixed an UPDATE/DELETE query bug in client-server mode. Fixed an ArrayIndexOutOfBoundsException in retrieval of large objects. Fixed Explorer display of user
1

Lazy retrieval by access not working correctly

I have a problem loading lazy associations by access/navigation with an @Embedded attribute containing an @ElementCollection which is lazy loaded. I'm not sure if the same problem exists elsewhere. Furthermore, if I set a breakpoint in the right spot in debug mode, everything works correctly
1

[ObjectDB 2.5.5_03] Unexpected exception (Error 990)

the manual. support Support I overlooked the NULL navigation thing. Sorry. Your suggested query doesn't

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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