About Object Database

11-20 of 200Refresh
Manual
93

Database Management Settings

ObjectDB evaluation restrictions (of 10 entity classes and 1,000,000 entity objects per database) requires ... The <database> configuration element specifies back end (database engine) settings ... <database> element: <database>
Manual
93

Deleting JPA Entity Objects

Existing entity objects can be deleted from the database either explicitly by invoking the remove ... (); The entity object is physically deleted from the database when the transaction is committed. Embedded ... of that object from the database. DELETE Queries DELETE queries provide an alternative way for removing
Manual
91

Updating JPA Entity Objects

Modifying existing entity objects that are stored in the database is based on transparent ... Once an entity object is retrieved from the database (no matter which way) it can simply be modified in memory ... (); The entity object is physically updated in the database when the transaction is committed
Manual
88

Obtaining a JPA Database Connection

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 ... of EntityManagerFactory that represents the relevant database and then we can use that factory instance
Result
86

About ObjectDB Database

ObjectDB Object Database ObjectDB is a powerful Object-Oriented Database Management System (ODBMS ... 100% pure Java Object-Oriented Database Management System (ODBMS). No proprietary API - managed ... and Spring. See the ObjectDB Object Database Featuresfor more details.
Result
86

About ObjectDB Database [2017-10-24]

ObjectDB Object Database ObjectDB is a powerful Object-Oriented Database Management System (ODBMS ... 100% pure Java Object-Oriented Database Management System (ODBMS). No proprietary API - managed ... and Spring. See the ObjectDB Object Database Featuresfor more details.
FAQ
86

What is the Java Data Objects (JDO)?

The Java Data Objects (JDO) is another standard for accessing persistent data in databases, using ... with both relational and object databases. JDO is supported by many object databases, including ObjectDB, and it is probably the most popular Java API for object databases today.
Manual
86

Database Schema Evolution

entity class. This is done automatically in memory each time the entity object is loaded. The database object is only updated to the new schema when that entity object is stored to the database ... of an entity class are detected by ObjectDB. New entity objects have to be stored in the new class
FAQ
82

Can I use ObjectDB to access a relational database?

To access relational databases using the Java Persistence API (JPA) you will need an Object ... . The DataNucleus ORM implementation supports also the Java Data Objects (JDO) API. ObjectDB is a full featured standalone Object Database Management System (ODBMS) and not an ORM tool, so it is not intended and cannot be used to access other database management systems.
FAQ
79

Is ObjectDB a NoSQL Database?

, but they are easier to use in object oriented languages such as Java. In addition, unlike most other NoSQL databases ... ObjectDB is a unique NoSQL database. It doesn't have the known disadvantages and limitations ... can be used in applications that cannot use conventional non ACID NoSQL databases because of a requirement for a very high level of consistency.