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Query vs Extent for retrieving data

of PositionReportBeans is empty. Is there something I need to set on the Query? I'm really stumped by ... . The following code block prints out all empty arrays for the lists of PositionReportBeans contained

Project runs in Eclipse but not when exported to runnable jar

. avoid empty catch which results in quite failure). If ObjectDB throws an exception ... is displayed. Other exceptions are thrown later because the odb file is not found and a new empty

EntityManager getMetamodel() causes crash

(see posting instructions). Does it happen also with a new empty database? support Support Working ... am using the ObjectDB server. I drop the db each time, so this is on an empty db. package test; import

Removing entity class

, but there are still in ObjectDB database. The 2 tables for these entities are empty, but the tables exist, so they count ... . You will have to create a new empty database and copy the content of the old database to the new one. support

Failed to write to ObjectDB log file

an empty path. support Support In my project I want to include objectdb.jar into my jar program ... specifying empty path. Then, zipped back into objectdb.jar file. Now it works fine. Thanks! marcins Marcin

remove & persist in same transaction => Attempt to reuse an existing primary key value

) and then the special Entity (A) is empty, we remove the special Entity (A). If we add additional data for Entity (B ... transaction: first remove additional Data -> The special Entity (with id 1) is empty and we remove

spuriously objectdb objects have null references

the difference (after detachment) between a collection that is really empty and a collection ... . If you just prefer an empty collection instead of null it wouldn't be difficult to enable such an option

Eager load Map

the database) the map is empty. Looking at the database through objectdb explorer shows the map contents ... is empty so nothing is printed to the console. If you uncomment the 2 lines after the "find

Removing of an entity removes also another entity type

database and we get an empty result. This is a data lost, why this behavior can occurs? btc_es BTC ... the ResolverMappings with type = 'interfaces' are not available anymore, the result is empty

ObjectDB 2.5.4

Added empty implementation of new JPA 2.1 methods. Implemented new JPA 2.1 EntityManagerFactory methods: createEntityManager, unwrap. Improved retrieving persistent string fields by using "".intern() for empty strings. Fixed a bug in queries on composed embedded primary key (issue #1301).

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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