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ObjectDB Database Explorer is a visual GUI tool for managing ObjectDB databases. It can be used to view data in ObjectDB databases, execute JPQL and JDOQL queries and edit the content of databases.

APIs. Fundamental features of relational databases (e.g. primary keys, derived attributes, grouping queries and aggregate queries) which are usually missing from Object Oriented Databases are also supported by ObjectDB. The combination of Object Database features with Relational Database features

The <database> configuration element specifies back end (database ... configuration file contains the following <database> element: <database> <size initial="256kb" resize="256kb" page="2kb" /> <

to a database is represented by an EntityManager instance, which also provides functionality for performing operations on a database. Many applications require multiple database connections during their lifetime. For instance, in a web application

) is used, the same database is managed on multiple machines (nodes), possibly in different ... recovery. In master-slave replication, the master node manages the main (master) database ... copies of the same database, which are limited to READ operations. Any update to the master database

>Diagnosis and validation of an ObjectDB database file Checks a given ObjectDB database ... database file Repairs a corrupted ObjectDB database file by creating a new fresh database file and then copying all the recoverable data in the corrupted database file to the new database

>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:

In JPA a database connection is represented by the EntityManager interface. Therefore, in order to manipulate an ObjectDB database we need an EntityManager instance. Operations that modify database content also require

/database#the_recording_element">configuration. The ObjectDB Replayer tool can apply recorded database operations on a matching database backup (if available). This ability is useful for two different purposes: It enables recovery from a database failure by

Boost your application database performance. Database performance is critical as it is the bottleneck in most applications.database management system (RDBMS) to store and retrieve Java objects requires slow