Information about Db4o
db4o (database for objects) is a high-performance, embeddedable open source object database for Java and .NET developers.
It is developed, commercially licensed and supported by db4objects, Inc., which is a privately-held company based in San Mateo, California. The company was incorporated in 2004 under CEO Christof Wittig, with the financial backing of top-tier Silicon Valley investors including Mark Leslie, founding CEO of Veritas, Vinod Khosla, founding CEO of SUN Microsystems, and Jerry Fiddler, founding CEO of Wind River.
Embeddable: db4o is designed to be embedded in clients or other software components completely invisible to the end user. Thus, db4o needs no separate installation mechanism, but comes as just one easily deployable library with a very low footprint of some 400KB'''
Portability and Cross-Platform Deployment: db4o supports Java's JDK 1.1.x through 5.0 and runs on J2EE and J2SE. db4o also runs with J2ME dialects that support reflection, such as CDC, PersonalProfile, Symbian, Savaje and Zaurus. Depending on customer demand, db4o will also run on dialects without reflection, such as CLDC, MIDP, RIM/Blackberry and Palm OS.
Native Queries: Rather than using string-based APIs (such as SQL, OQL, JDOQL, EJBQL, and SODA), NQs allow developers to simply use the programming language itself (e.g., Java, C#, or VB.NET) to access the database and thus avoid a constant, productivity-reducing context switch between programming language and data access API.
It is developed, commercially licensed and supported by db4objects, Inc., which is a privately-held company based in San Mateo, California. The company was incorporated in 2004 under CEO Christof Wittig, with the financial backing of top-tier Silicon Valley investors including Mark Leslie, founding CEO of Veritas, Vinod Khosla, founding CEO of SUN Microsystems, and Jerry Fiddler, founding CEO of Wind River.
History
db4o was created in 2000 by Chief Architect Carl Rosenberger, and first shipped in 2001. Some 100 commercial pilot customers and a loyal user community have endorsed db4o from its earliest days, and proved it ready for mission-critical applications prior to its commercial launch in 2004.Licensing
The full version of db4o is available under two licenses (dual license): the open source, GPL, which enables easy download, evaluation, and use in GPL compliant projects; and a commercial runtime license with indemnification from db4objects for product development companies that wish to embed db4o into their commercial, non-GPL products.Support
db4objects, Inc. offers support via the db4o Developer Network (dDN) membership: Direct, private 24/7 support with a response time of less than 24 hours by means of the dDN Member Portal. Members get free updates on all purchased runtimes as well as free developer licenses to benefit from db4o's ongoing innovations. Only members can lock in a binding dRT runtime price agreement in order to make fixed budget assumptions for their product planning.Features
One-Line-of-Code Database: Store any object with just one line of codeEmbeddable: db4o is designed to be embedded in clients or other software components completely invisible to the end user. Thus, db4o needs no separate installation mechanism, but comes as just one easily deployable library with a very low footprint of some 400KB'''
Portability and Cross-Platform Deployment: db4o supports Java's JDK 1.1.x through 5.0 and runs on J2EE and J2SE. db4o also runs with J2ME dialects that support reflection, such as CDC, PersonalProfile, Symbian, Savaje and Zaurus. Depending on customer demand, db4o will also run on dialects without reflection, such as CLDC, MIDP, RIM/Blackberry and Palm OS.
Native Queries: Rather than using string-based APIs (such as SQL, OQL, JDOQL, EJBQL, and SODA), NQs allow developers to simply use the programming language itself (e.g., Java, C#, or VB.NET) to access the database and thus avoid a constant, productivity-reducing context switch between programming language and data access API.
Prominent users
References
External links
Open source is a set of principles and practices that promote access to the design and production of goods and knowledge. The term is most commonly applied to the source code of software that is available to the general public with relaxed or non-existent intellectual property
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'' In an object oriented database, information is represented in the form of objects'' as used in Object-Oriented Programming. When database capabilities are combined with object programming language capabilities, the result is an object database management system (ODBMS).
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Java
Paradigm: Object-oriented, structured, imperative
Appeared in: 1995
Designed by: Sun Microsystems
Typing discipline: Static, strong, safe, nominative
Major implementations: Numerous
Influenced by: Objective-C, C++, Smalltalk, Eiffel,[1]
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Paradigm: Object-oriented, structured, imperative
Appeared in: 1995
Designed by: Sun Microsystems
Typing discipline: Static, strong, safe, nominative
Major implementations: Numerous
Influenced by: Objective-C, C++, Smalltalk, Eiffel,[1]
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.NET Framework is a software component that can be added to or is included with Microsoft Windows operating system. It provides a large body of pre-coded solutions to common program requirements, and manages the execution of programs written specifically for the framework. The .
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Veritas Software
Subsidiary
Founded 1989
Headquarters Mountain View, California, USA
Key people Gary Bloom, CEO
Industry Computer software
Products VxSF (incl.
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Subsidiary
Founded 1989
Headquarters Mountain View, California, USA
Key people Gary Bloom, CEO
Industry Computer software
Products VxSF (incl.
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Sun Microsystems
Public (NASDAQ: JAVA )
Founded 1982
Headquarters Santa Clara, California, United States
Key people Scott McNealy, Chairman
Jonathan I.
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Public (NASDAQ: JAVA )
Founded 1982
Headquarters Santa Clara, California, United States
Key people Scott McNealy, Chairman
Jonathan I.
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Wind River Systems Inc.
Public (NASDAQ: WIND )
Founded 1981
Headquarters Alameda, California
Key people Ken Klein, Chairman, President and CEO
Revenue US$266.30 million (2006)
Employees 1,112 (2005)
Website www.windriver.
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Public (NASDAQ: WIND )
Founded 1981
Headquarters Alameda, California
Key people Ken Klein, Chairman, President and CEO
Revenue US$266.30 million (2006)
Employees 1,112 (2005)
Website www.windriver.
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Dual-licensing is the practice of distributing identical software under two different sets of terms and conditions. This may mean two different licenses, or two different sets of licenses.
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GNU General Public License
Author: Free Software Foundation
Version: 3
Copyright on the license: Free Software Foundation, Inc.
Publication date: 29 June 2007
OSI approved: Yes
Debian approved: Yes
Free Software:
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Author: Free Software Foundation
Version: 3
Copyright on the license: Free Software Foundation, Inc.
Publication date: 29 June 2007
OSI approved: Yes
Debian approved: Yes
Free Software:
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Native Queries are a concise and type-safe way to express queries directly as Java and C# methods.
Native Queries are based on Safe Queries by Cook and Rai and were first implemented in db4o's open source object database as well as POJQ on Java.net.
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Native Queries are based on Safe Queries by Cook and Rai and were first implemented in db4o's open source object database as well as POJQ on Java.net.
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Bayerische Motoren Werke AG
Aktiengesellschaft
Founded 1916
Headquarters Munich, Germany
Key people Dr. Norbert Reithofer, Chairman and CEO
Industry Automotive
Products Automobiles
Motorcycles
Revenue €49 billion (2006)
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Aktiengesellschaft
Founded 1916
Headquarters Munich, Germany
Key people Dr. Norbert Reithofer, Chairman and CEO
Industry Automotive
Products Automobiles
Motorcycles
Revenue €49 billion (2006)
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The Boeing Company
Public (NYSE: BA , TYO: 7661 )
Founded Seattle, Washington (1916)
Headquarters Chicago, Illinois
Key people W. James McNerney, Jr.
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Public (NYSE: BA , TYO: 7661 )
Founded Seattle, Washington (1916)
Headquarters Chicago, Illinois
Key people W. James McNerney, Jr.
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Robert Bosch GmbH
GmbH
Founded 1886
Headquarters Gerlingen, Germany
Key people Robert Bosch, founder
Industry Automotive, Small appliance
Products Automotive parts, Power tools
Revenue $43,7 Billions (2006)
Net income $2,17 Billions (2006)
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GmbH
Founded 1886
Headquarters Gerlingen, Germany
Key people Robert Bosch, founder
Industry Automotive, Small appliance
Products Automotive parts, Power tools
Revenue $43,7 Billions (2006)
Net income $2,17 Billions (2006)
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Intel Corporation
Public (NASDAQ: INTC , SEHK: 4335 )
Founded 1968 1
Headquarters Santa Clara, California
United States
Key people Paul S.
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Public (NASDAQ: INTC , SEHK: 4335 )
Founded 1968 1
Headquarters Santa Clara, California
United States
Key people Paul S.
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Ricoh Company, Ltd.
株式会社リコー
Corporation TYO: 7752
Founded Tokyo, Japan (1936)
Headquarters Tokyo, Japan
Key people Masamitsu Sakurai, President, CEO & COO
Industry Electronics, Imaging
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株式会社リコー
Corporation TYO: 7752
Founded Tokyo, Japan (1936)
Headquarters Tokyo, Japan
Key people Masamitsu Sakurai, President, CEO & COO
Industry Electronics, Imaging
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Seagate Technology
Public (NYSE: STX )
Founded 1979
Headquarters Scotts Valley, CA, USA
Key people Alan Shugart, Founder
Bill Watkins, CEO
Stephen J. Luczo, Chairman of the Board
Dr.
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Public (NYSE: STX )
Founded 1979
Headquarters Scotts Valley, CA, USA
Key people Alan Shugart, Founder
Bill Watkins, CEO
Stephen J. Luczo, Chairman of the Board
Dr.
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