About connect

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FAQ
9

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
9

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
9

Database Server

.Server -conf my_objectdb.conf start The TPC/IP port on which the server listens for new connections
Tutorial
9

Step 3: Define an EJB Session Bean

class GuestDao { // Injected database connection: @PersistenceContext private EntityManager
Manual
9

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
9

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
JDO Doc
6

setConnectionFactory2(connectionFactory)

) Set the second data store connection factory. This is needed for managed environments to get nontransactional connections for optimistic transactions. JDO implementations will support specific connection factories. The connection factory interfaces are not part of the JDO specification. Parameters
Result
5

[ODB1] Chapter 5 - JDO Connections

The PersistenceManagerFactory interface represents a factory of database connections. Its main role ... connection. Every operation on a database requires a PersistenceManager instance. The Transaction ... 6). 5.1  javax.jdo.PersistenceManagerFactory Most applications require multiple database connections
Forum
5

EntityManagerFactory Fails To Swtich Over To Slave When Master Is Unavailable

; which generates the following exception below. What am I doing wrong? It appears the connection manager fails ... Failed to connect to server 10.9.2.15:9999 (Connection refused: connect) (error 522) at com.objectdb.jpa ... .o.UserException: Failed to connect to server 10.9.2.15:9999 (Connection refused: connect) at com
JDO Doc
5

getPersistenceManager(userid, password)

connections from the connection pool. After the first use of getPersistenceManager, no "set" methods will succeed. Parameters: userid - the userid for the connection password - the password for the connection Returns: a PersistenceManager instance with default options. Since: JDO 1.0