7 | Chapter 2 - JPA Entity ClassesJPA Entity classes are user defined classes whose instances can be stored in a database. To store data in an ObjectDB database using JPA you have to define entity classes that represent your application data object model. This chapter explains how to define and use entity classes. |
7 | Eclipse Public License - v 1.0 may accept certain responsibilities with respect to end users, business partners and the like |
7 | Entity Management Settings method for instances of serializable types that are non persistable otherwise (e.g. a user defined |
7 | BIRT/ODA ObjectDB Driver - either embedded (e.g. c:\points.odb) or client-server (e.g. objectdb://localhost/points.odb;user=admin |
7 | Comparison in JPQL and Criteria API operators (=, <>, ==, !=). Instances of user defined classes (entity classes and embeddable classes |
7 | UPDATE SET Queries in JPA/JPQL queries can only be executed within an active transaction and the changes are visible to other users |
7 | JPA Criteria API Queries API may be preferred. For example, building a dynamic query based on fields that a user fills |
7 | Working with JPA Entity ObjectsEntity objects are in-memory instances of entity classes (persistable user defined classes), which can represent physical objects in the database. Managing an ObjectDB Object Database using JPA requires using entity objects for many operations, including storing, retrieving, updating and deleting |
7 | ObjectDB Overview. Advanced querying and indexing capabilities. Effective in heavy loaded multi-user environments |
1 | Step 2: Entity Class and Persistence Unit.odb"/> <property name="javax.persistence.jdbc.user" value="admin"/> <property name |
