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FAQ
3

Is ObjectDB scalable? What are its limitation?

. Up to 9,223,372,036,854,775,808 entity objects per database file. Unlimited database connections (limited by operating system resources).
Result
3

Posting to ObjectDB Website - Important Instructions [2018-08-06]

(preferred over JUnit). Use embedded mode to connect to the ObjectDB database directly (no persistence unit
Manual
3

Database Server

.Server -conf my_objectdb.conf start The TPC/IP port on which the server listens for new connections
Tutorial
3

Step 3: Define an EJB Session Bean

class GuestDao { // Injected database connection: @PersistenceContext private EntityManager
Manual
3

CRUD Database Operations with JPA [2011-02-11]

Given an EntityManager, em, that represents a JPA connection to the object database, we can use it to store, retrieve, update and delete database objects. Storing New Entity Objects The following code fragment stores 1,000 Point objects in the database: em.getTransaction().begin(); for (int i
Manual
3

CRUD Database Operations with JPA

Given an EntityManager, em, that represents a JPA connection to the object database, we can use it to store, retrieve, update and delete database objects. Storing New Entity Objects The following code fragment stores 1,000 Point objects in the database: em.getTransaction().begin(); for (int i
Forum
3

How force always recreate database on redeployment.

the entire database if its file is not locked by Glassfish. See the connection url section in the manual ... the provided links. From EntityManagerFactory: Connection URL Parameters To obtain a connection to an empty ... . My connection URL in persistence.xml is:
Forum
3

500Mb ObjectDb database opening issue

without network connection (disabled local connection). Results below: 1/29/2016 19:03:34.334: INFO ... without activation codes & network connection also disabled
Forum
3

Master database switching to read-only mode, possibly caused by slave failure

] javax.persistence.PersistenceException Connection is closed (error 526) at com.objectdb.jpa ... .UserException: Connection is closed at com.objectdb.o.MSG.d(MSG.java:61) at com ... that case, if you use a combined master/slave url requests to the master all the requests
Forum
3

Difficulty with the BIRT plugin

Hi, am trying to get the BIRT plugin to work. Firstly: connecting to an odb server doesn't ... is using. Next: connecting directly to a file datasource seems to work, in the sense that I can ping ... .Point. Any ideas?   Maybe the database url is not accurate and a new empty database (without the type