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9

Deadlock in objectdb code

indicates a possible deadlock during initialization of new persistent schema. Could you please confirm ... , so they aren't first encountered later? Also, is there a logging option to follow schema changes during a run ... . > Also, is there a logging option to follow schema changes during a run? Basic type registration was added now in
9

virtual servers and one file

? It depends on your schema. Assuming you want to simulate random access (rather than a complete scan ... > <schema> </schema> <server> <connection port="6136" max="1024" /> <data path="$objectdb/db
9

Embedded in JDO metadata not working in objectDB 2.x ?

? No such utility. After upgrading the schema you will have to write a small program that retrieves ... . support Support Thanks for the tip for question 4. I upgraded the schema and wrote the program ... ? Since I upgraded the schema where these objects are declared as embedded, I do not see them in
9

NullPointerException in ENH.g(ENH.java:401)

class to a new package without backing this operation with a schema change declaration in ... . Adding a schema change now may not help, as there are already two different classes in the database ... for your fast response. You were right, I forgot about this schema change. Glad you found it... Thanks
9

Recommendation - concurrent access multiple class v

Currently schema changes require server restart, as well as restarting the application with the new schema. ObjectDB servers usually do not have a direct access to your classes, so this is not a problem ... , changing the schema requires restarting all of them with the new version of your application. With some
9

drop a column from table

remove the field from the entity class. See Automatic Schema Evolution. Space in the database file ... the transaction. Alternatively, you run the Doctor in repair mode to create a new database file. The schema change must be available to the Doctor, so you must open the database after the schema change in
9

Multi-tenant setup

schema or multiple database. How to handle connections between app (Jboss Wildfly) and pass query request to appropriate database, how to dynamically add new database or schema. There are lot ... managers in Java EE and JPA is static. ObjectDB supports a dynamic schema, if your application generates
9

Managing software release cycles.

to change something in the database "structure". See the following manual pages: Database Schema Evolution Schema Update As you can see most schema changes are either fully automatic or can be defined by
9

2.7.3_03 Erroneous "Attempt to modify a primary key of a managed object"

the id field to a simple String without database schema change, and save some space in memory ... require database schema change (automatically updates and just works)? I tried 2.7.3_05 ... ; Note: @Id remains and not replaced with @Index. You should be able to read old data with no schema
1

Unexpected exception (Error 990)

you get this exception after changing the schema? If the schema has changed, was the server restarted before using the new schema? After restarting the server, do you still get this exception? support

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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