OJB
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Categories: Object-relational mapping
Author: The Apache Software Foundation
Latest version: 1.0.1
Added 2005-01-10
ObJectRelationalBridge (OJB) is an object/relational mapping tool that allows transparent persistence for Java objects against relational databases.
Features include:
- Support of standard and non-standard API's (PB, OTM, ODMG, JDO)
- The PersistenceBroker kernel API and all top-level APIs allows Java programmers to store and retrieve Java objects in/from (any) JDBC-compliant RDBMS
- Transparent persistence: Persistent classes don't have to inherit from a persistent base class or to implement an interface.
- Object caching, lazy materialization through virtual proxies, distributed lock-management with configurable Transaction-Isolation Levels. Optimistic and pessimistic Locking is supported.
- Designed to be scalable: Allows to build massively distributed and clustered systems.
- Configurable persistence by reachability: All Objects associated to a persistent object by references can made persitent too
- Pluggable implementation of service classes like PersistenceBroker, ObjectCache, SequenceManager, RowReader, ConnectionFactory, ConnectionManager, IndirectionHandler, SQLGenerator, JdbcAccess...
- Mapping support for 1:1, 1:n and m:n associations
- Configurable collection queries to control loading of relationships
- Automatic and manual assignment of foreign key values
- The mapping is defined in an XML Repository. The mapping is dynamic and can be manipulated at runtime
Built for Java |
Free or free version available |
Source code provided |