About Object Database

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Forum
13

Queries are slow on a large database

out: how to get the total number of object in a database without retrieving everything? Alternatively ... Hi, I have a 12GB database with 787603 entries. It is much larger than usual ... have to scan the entire database file and is not using indexes. Therefore I think I am not doing
Issue
13

InternalException - error reading field from "queue" database

guess the problem is actually on writting the objects to the db. Running the database ... that is missing in this database. What do you store in that field? entity objects? embeddable objects? serializable objects? Did you use that specific database in replication? Maybe this is related
Forum
13

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

and is the primary key used to save/restore the object into/out of the database.  Another user might try ... key of a managed object", but my application is not trying to change the primary key.  (ObjectDB ... of the id field. You should be able to change the id field to a simple String without database schema
Forum
13

Listing large number of complicated objects with paging.

all objects in database: In the case ... - there was OutOfMemory exception thrown by database - maybe by creating 55k ProductListTO() objects? I ... 'Product' (attached to this post) entities in database and I'm trying to speed listing them with paging
Forum
13

Searching lists within objects

want to search using cb.isMember passing an object. This however does NOT work. I'm uncertain how the database is doing its matching, but it looks to me like it matches using objectids, which means you can only match isMember if you have a database object. This does not help as I'm never going
Issue
13

cannot delete objects after crash (see issue 2283)

after the crash we cannot delete specific objects, see screenshots of explorer. Database ... objectdb  meanwhile the database became completely unusable, we had to stop and run the Doctor. Find ... of the recovery failure is still in progress. we upload currently the database before Doctor
Manual
13

ObjectDB 2.8 Developer's Guide

.             Shows how to use JPA to store, retrieve, update and delete database objects.             Explains ... Welcome to ObjectDB for Java/JPA Developer's Guide. Here you can learn how to develop database ... the following six chapters:             Demonstrates basic database programming using ObjectDB and JPA
Tutorial
13

Step 3: Add a Context Listener Class

The Guest entity objects will be stored in an ObjectDB database, which will be represented by ... a ServletContextListener to perform initialization and cleanup operations: The database will be opened (or created ... . The database will be closed when the web application stops (or when the web server shuts down), by
Tutorial
13

Step 3: Add a Context Listener Class

The Guest entity objects will be stored in an ObjectDB database, which will be represented by ... a ServletContextListener to perform initialization and cleanup operations: The database will be opened (or created ... . The database will be closed when the web application stops (or when the web server shuts down), by
Forum
13

Database Inconsistency or corruption

entity. 2-) Problem Description I initialized the database with some ObjectValues. Persisting new ... part of the log file. Before the update operation, I dump the properties of the object I want to update ... , isPersisted:=true ... After the update Operation I also dump the properties of the object. ObjectValue ID