Object Orientated Databases
Traditional relation databases create big “Impedance mismatch ” with present object oriented development platforms, So some people try to develop different types of Object-to-Relational techniques to fill the gap between Object-Oriented Application and RDMS (Relational Database Management Systems ). But those can not make it in a efficient way.
Another community try it in a different way that is Object–oriented Data bases. Now it becomes a new trend in IT Industry.
Let’s make a quick look on that,
Products Currently Available for Industry usages,
1. ObjectivityDB - http://.wwwobjectivity.com
2. DB4Objects (open source) - http://www.db4o.com
3. VOSS - http://voss.logicarts.com
4. Caché® - http://www.intersystems.com
5. Progress® ObjectStore® Enterprise - http://www.progress.com
6. EyeDB - http://www.eyedb.org
7. Versant - http://www.versant.com
8. JDOInstruments (Open soruce) - http://www.jdoinstruments.org
9. JYD Object Database - http://www.jyd.com
10. Ozone - http://www.ozone-db.org
11. JODB - http://www.java-objects-database.com
12. ODABA - www.run-software.com
13. ObjectDB - http://www.objectdb.com
14. Orient - http://www.orientechnologies.com
1. ObjectivityDB - http://.wwwobjectivity.com
· Support for distributed databases
· Massive Scalability (Terabytes)
· Support platforms : Solaris , Windows NT, 2000 and XP
· ODBC Driver also available.
· Provide High Performance ACID Transaction management (Atomic Consistency Integrity Durability )
· Support development platforms : C++ ,Java, Python, Smalltalk
· Invested in innovation : Adobe Systems
· Trial version available(60 days)
· Price (90 days Evaluation) : $249.
(Price of Full version can collect by mailing to product owners )
2. DB4Objects (open source)- http://www.db4o.com
· Release under the GPL license and Commercial License
· Support for .NET and JAVA Developers
· Easy Object Replication and Synchronization.
· Price: ( db4o Developer Network (Limited Support) ) : $1,200
Full Support version: $ 18,000
· Customers And partners : Ricoh(leading maker of digital office solutions), Boeing , Merrill Lynch
3. VOSS - http://voss.logicarts.com
· ACID transactions with logging and roll-forward crash recovery
· Dual Licensing – Open Source GPL and Supported Commercial
· Concurrent background & foreground garbage collection
· Automatic object locking and transaction retry on time-out
4. Cache ® – http://www.intersystems.com
· Can use with JAVA, .NET and C++.
· Provide a Performance Monitoring API
· Use Transactional Bit-Map Indexing for Fast response to complex queries
5. ObjectStore ® Enterprise – http://www.progress.com
· For JAVA and C++ Developers
· Speedy transaction rates and low latencies via patented Cache-Forward Architecture™.
· Operate on Windows, Solaris and Linux.
6. EyeDB - http://www.eyedb.org
· Operate on Sun Solaris , Mac , Linux
· Can use member and methods in classes
· Open source project
· Support for Object Query Language (OQL) and Object Definition Language (ODL)
· Available for JAVA and C++ Developments
· Support for multi-dimensional and variable size dimensional arrays
7. Versant- http://www.versant.com
· Support for JAVA and C++
· Operate in Windows, Sun Salaries , Red Hat Platforms
· fast database backup/restore without affecting the server availability
· Roll-Forward archiving
8. JDOInstruments - http://www.jdoinstruments.org
· Developed under GPL license
· embedded object oriented database
· Only support fro JAVA
9. JYD Object Database - http://www.jyd.com
· Automatic movement of objects between primary and secondary storage
· distributed database support
· garbage collection on the database
· Price (Professional edition with site License ): $ 19,999
10. Ozone - http://www.ozone-db.org
· Compliant DOM implementation and ODMG (Object Data Management Group)
· A Open source Project has been started as a research project.
11. JODB - http://www.java-objects-database.com
· Open source product.
· Support for ACID transactions
· Data backup functionality
· Data file lock to avoid concurrent modifications by different processes.
12. ODABA – www.run-software.com
· Support for Distributed Database Architecture
· A Free and Open source product.
· Provide interfaces for Java , C++.
· Project started in 1994
13. ObjectDB- http://www.objectdb.com
· Three Edition avalible(Free ,Embedded, server )
· Pure java database
14. Orient- http://www.orientechnologies.com
· Support for JAVA , C++ ,SQL
· Release for free, under the Apache 2.0 license.
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