About journal

manual

Database Transaction Replayer

Explains how to use the ObjectDB object database Replayer tool to restore recorded Java/JPA/JDO actions.... internal engine operations in special binary recording (journal) files. Recording is enabled by default and can be disabled in the ...

 
manual

Database Management Settings

Explains settings and performance tuning of the ObjectDB Java object database for JPA/JDO. The <database> configuration element specifies back end (database engine) settings which are relevant on the server side and in embedded mode. The default configuration file contains the following <database> element: ...

 
forum_thread

Can't modify @EmbeddedId in ObjectDB Explorer

Hi! There is entity Journal with @EmbeddedId JournalId. Id's content can't be seen/modified from ObjectDB Explorer from its class. Ok, I get this. It's an @EmbeddedId, so it should depend only on its parent. Problem: id's content can't be modified through its parent neither. Scenario: open db in ObjectDB Explorer, open entity Journal, expand the id, try to modify date/id, save, then refresh data / reopen db, and you'll see that it wasn't modified. Any solutions? ... Hi! There is entity Journal with @EmbeddedId JournalId. Id's content can't be seen/modified ... Scenario: open db in ObjectDB Explorer, open entity Journal, expand the id, try to modify date/id, save, then refresh data / reopen ...

 
forum_thread

Performance issues on aggregate query

we are using this aggregate query to collect some data: ... Double doubleValue; // HS-778 public Boolean journal; public String jsonValue; @Index public String name; ...