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forum_thread

2.4.7 Fetch

am noticing in 2.4.7 that 'fetch' cannot be added to objectdb.conf so, wondering how to enable 'eager' fetching of collections ?   Dave   ... Reply Please read carefully the posting instructions - before posting to ...

 
issue

Index Rebuilder

When a new index is added to an existing entity classes that already has instances in the database, it cannot be used in queries, because it starts empty and it is not synchronized with the existing primary data. The Index Rebuilder tool will enable rebuilding indexes, synchronizing their data to the primary data. As a workaround, you can currently use the ObjectDB Doctor to build a new database file, in which such new indexes will be enabled.... Reply Please read carefully the posting instructions - before posting to ...

 
forum_thread

10 classes limit

hey. i am a student. and we are learnning inheritance in JPA for my assiment i have 1 base class and 20 subclass in some kind of hierarchy (with all kind of mappings: SINGLE_TABLE, TABLE_PER_CLASS and JOINED). can i use the free version (it will count as 1 class?) or the 10 entity class limit won't allow it?   thank you, Liran. ... Reply Please read carefully the posting instructions - before posting to ...

 
forum_thread

Drop JDO support

In my opinion JDO is a legacy/deprecated technology. You should remove JDO support in favour of JPA. I think this would make ObjectDB to grow faster. ... Reply Please read carefully the posting instructions - before posting to ...

 
forum_thread

Network in ObjectDB

Hi, every Body does the free license of objectDB support that i could put the database file on server (inside company) and more than one computer access that file if it's supported how i do it Thanks in Advance ... Reply Please read carefully the posting instructions - before posting to ...

 
forum_thread

Navigation and Parameters

Greetings ObjectDB team, Suppose I pass a List of persistent objects to some query as a parameter, can I navigate to those objects' fields ? E.g.: SELECT x FROM ClassX x WHERE x.a IS MEMBER OF :y.b... Reply Please read carefully the posting instructions - before posting to ...

 
forum_thread

Analyse opensource project

Hello , it will be good if you analyse open source project : OrientDB: https://github.com/nuvolabase/orientdb     i heard it new. Maybe it can be helpful for more faster objectdb or jdbc side. ... Reply Please read carefully the posting instructions - before posting to ...

 
forum_thread

Acces the same DB with multiple users

I developed an application that needs 3 computers to acces the same odb file, unfortunately when I acces this file from any other computer than the one where I first generated the file (I'm using the server.exe) my queries result in nothing? Must something be changed to the config? Or should this work with no changes to the included config file? Thanks for the help, Marvin   ... Reply Please read carefully the posting instructions - before posting to ...

 
forum_thread

How to retrieve the ObjectDB version number?

Hi! We need  the ObjectDB version for debug purpose/logging. Our project supports also EclipseLink - http://stackoverflow.com/questions/3493495/getting-database-connection-in-pure-jpa-setup With the Connection object the Database name & version can be retrieved. For ObjectDB, which is the best (JPA) method to get the version number?   Peter       ... Reply Please read carefully the posting instructions - before posting to ...

 
forum_thread

Global way to set Lazy-loading fetch functionality for all the fields

Hi, for cascading persist, I have 3 choices: - Either locally (@OneToOne(cascade=CascadeType.PERSIST)) - Either at objectdb level (<cascade-persist always="auto" on-persist="false" on-commit="true" />) - Either at JPA global level (orm.xml).   For defining fetch policy, I know the local way to do it (@ManyToOne(fetch=FetchType.LAZY)). Is there any way to do it at objectdb level or JPA global level?   ... Reply Please read carefully the posting instructions - before posting to ...