About WRITE

forum_thread

JDO manual

#1 2010-05-22 19:09 Request for a new JDO manual, covering ODB 2. edit ...

 
forum_thread

Deadlock in Doctor

Hi, Doctor from latest build has some kind of deadlock when writing new version of database file: #1 2012-11-22 15:00 Hi, Doctor from latest build has some kind of deadlock when writing new version of database file: ...

 
manual

Chapter 1 - Quick Tour

Quick tour on how to use Java and JPA with the ObjectDB Object Database.... program. After reading this chapter you should be able to write basic programs that create, open and close ObjectDB databases and perform ...

 
forum_thread

problems using the explorer

we are currently evaluating objectDB. Environment OSX 10.9.2, JavaSE-1.7 Version: Kepler Service Release 2 Build id: 20140224-0627 ObjectDB 2.5.5 Maven project, objectDB relevant sections: ... #1 2014-04-09 13:50 we are currently evaluating objectDB. Environment OSX 10.9.2, JavaSE-1.7 Version: Kep ...

 
page

What is new in ObjectDB 2.0?

ObjectDB 2.0 supports many new features and improvements, including: Most of the features of the new JPA 2.0 and JDO 2.2 APIs. User defined IDs (primary key) and sequences. Support of unlimited index keys size. SQL like queries (" ...

 
forum_thread

Access entity version before commit transaction

Hi, I have a usecase where I need to write the updated entity id to the database before commiting the transaction: 1. Change entity field e.g. from a to b 2. Create a change entry in database containing the new version of the entity ... Hi, I have a usecase where I need to write the updated entity version to the database before commiting the ...

 
issue

NullPointer running multiple client against server

Hi, I'm running objectdb in server mode, config as it comes out of the box. In this case the database is being used as a queue with multiple seperate processes, each with multiple threads, writing messages. The message is split into a lightweight metadata message to allow fast searching and a more heavy weight data message. The put methods are shown below. The message is made up of an id, insert-time, priority and the payload is a large string. Bug Version: 2.2.7 Priority: Normal Status: Fixed Replies: 2 Type:  Bug ...

 
api-jdo

PersistenceCapable.READ_WRITE_OK

If jdoFlags is set to READ_WRITE_OK, then the fields in the default fetch group can be accessed for read or write without notifying the StateManager.(Static Field of javax.jdo.spi.PersistenceCapable)

 
forum_thread

Retrieve data of all entity classes in a single query

I have in an objectdb file 10 Entity Classes with some data in each (Athlete, Trainer, Stadium etc) This is the code I use to retrieve all Managed Types and data for the Athlete class #1 2014-08-11 17:48 I have in an objectdb file 10 Entity Classes with some data in each (Athlete, Trainer, Stadium etc) This ...

 
forum_thread

Concerning coding style of the example in the posting instructions

(This forum item was spawned from discussions in a private helpdesk ticket.) I write with reference to the coding example in the posting instructions and many of your other examples posted in the forums. While I appreciate the recommended coding style as shown makes for convenient minimal examples and test cases,  I contest that it breaks the rules for JPA2 entities on at least 2 counts. Firstly, the posting instructions state:  ... discussions in a private helpdesk ticket.) I write with reference to the coding example in the posting instructions and ...