About Object Database

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Manual
101

Working with JPA Entity Objects

), which can represent physical objects in the database. Managing an ObjectDB Object Database using JPA ... database objects. Entity Object Life Cycle The life cycle of entity objects consists of four states ... the database. An entity object becomes Managed when it is persisted to the database
Manual
101

Storing JPA Entity Objects

New entity objects can be stored in the database either explicitly by invoking the persist method ... and changes its state to Managed. The new entity object is stored in the database when the transaction ... of an entity class. Only instances of entity classes can be stored in the database independently. Objects
Manual
93

Detached Entity Objects

Detached entity objects are objects in a special state in which they are not managed by any EntityManager but still represent objects in the database. Compared to managed entity objects, detached ... the database unless modified detached objects are merged back into an EntityManager to become managed
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
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.
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.