Object database goes open source
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InfoWorld - Startup company db4o&#160;bjects next week is releasing its object database, db4o, under an open source format, with the product now available either under the GPL via open source or commercially as embeddable software.
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ObjectWeb will begin distributing an open source BPEL server in the coming weeks, expanding the available options for a middleware technology used to link several applications and data sources into a larger business process. It will be the second open source BPEL server released in recent weeks.
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Open source enterprise software developer OpenLogic wants open source users to stand up and be counted in a worldwide census -- and is offering a new software tool to help the process.The number of licenses sold gives vendors of proprietary software a pretty good idea of how many people are using their code, assuming there are not too many pirated copies in use, or licensed copies gathering dust on shelves. They can also draw on information about paid upgrades or service contracts, or sell unique license keys, verified by a central server each time the software is installed -- or even used.Open source software developers have no such luck; the very nature of open source licenses makes such verification methods impossible. One clue they have is a count of how many people have downloaded the software from their Web sites. Reaching 1 million downloads is a rite of passage for open source projects.&#160;SugarCRM, for example, passed that landmark in May.Such counts, though, may underestimate the number of users, as anyone who obtains open source software is free to redistribute it by any other means they choose -- as long as they accompany it with a copy of the open source license and make the source code readily available.On the other hand, they may wildly overestimate the number; people may download the software with no intention of using it, since there is no financial disincentive to doing so, or they may download it multiple times if they upgrade it, wipe and reinstall their system, or have several computers.To come up with an accurate figure for the number of users of various open source applications in the enterprise, OpenLogic has released an automated census tool, OSS Discovery, itself available under an open source license.It hopes that businesses will scan their machines using the tool and contribute the data about the applications they are using to an open database.The tool could offer advantages to IT managers too, said OpenLogic, enabling them to build up a picture of the software installed on desktops and servers around their business and compare it with that used in other enterprises.OpenLogic is looking for partners to distribute or deploy the software and wants open source software developers to contribute digital &quot;fingerprints&quot; of their applications that will enable the discovery tool to identify them. Those who help with the project will be offered access to the anonymous data gathered.OSS Discovery 2.0 is based on the company&#39;s OpenLogic Discovery tool and is distributed under the GNU Affero General Public License version 3. This recently introduced license extends the GPL license to ensure that changes to software used to power publicly available services will be contributed to the free software community, even if the modified software is not itself distributed.OpenLogic hopes to begin collecting census data early next year.
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DevShed ramps up another new series today with this new article giving developers a look at working with object-oriented programming through the eyes of design patterns. It's another excerpt from the George Schlossnagle book "Advanced PHP Programming".   This chapter provides an overview of the advanced OO features now available in PHP. Some of the examples developed here will be used throughout the rest of this book and will hopefully serve as a demonstration that certain problems really benefit from the OO approach.   The article lays down the foundation for the more complex information to come. It introduces object-oriented programming briefly, and talks about some of the handy features of it - like inheritance, static attributes and methods.
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On PHPBuilder.com today, there's a new tutorial focusing on the development of PHP applications that can be run on different database environments without many changes to the actual application.   There are several options available to interact with multiple database engines with PHP, such as Pear DB and MDB2. However, there may instances where you will be required to develop your own custom database interface that connects to many different database engines using a single unified syntax. This article will address the development of a class that will do exactly that. In addition, we will include the ability to replicate data among several databases in real time.   They create their own abstraction layer that has the ability to make the connection, replicate data between connections, handle some errors and work with database configuration data. The tutorial shows you how to use the script for three different database types - MySQL, Oracle, and MS SQL.
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Programmers say the new version of the open-source database is 5 to 30 percent faster and works better on Windows.
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Blog: Mapping software for modeling the path of infectious diseases made available as open-source.
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OpenBaseMovil is an enterprise-class J2ME application framework, which includes many features being the most notable the J2ME Relational Database Engine openbasemovil-db, but also the user interface engine that allows you to create your views using XML, and lots of other useful things like local connectivity to Bluetooth devices like bar-code scanners, printers or GPS antennas.   With this release you have every thing you need to create your own enterprise-class J2ME applications with little effort, without worrying about device bugs or differences, screen sizes, and all the things that usually make J2ME development a nightmare. We have included in this release a Quick Start Guide, that explains how to use the application template to create your project skeleton and then how to build a working application very quickly: PasswordKeeper, a KeePass like application. Of course, the full source code for the framework, the application template and the sample application are available for download: http://sourceforge.net/project/platformdownload.php?group_id=210619 Visit the project home page for more information: http://www.openbasemovil.org
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Ziff Davis - IBM announces a set of free tools and support for developers using its Java relational database, also now known as Derby.
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The ObjectWeb Consortium added portal, content, and business process management elements to the stack of open source middleware projects it promotes, potentially providing businesses with access to cheaper technology, members of the group announced Tuesday.
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SQuirreL SQL Client is a graphical SQL client written in Java that will allow you to view the structure of a JDBC compliant database, browse the data in tables, issue SQL commands etc.   We released version 2.6.1 which addresses the following two problems:  A critical packaging flaw that prevents launch on some platforms:     http://sourceforge.net/tracker/index.php?func=detail&aid=1818446&group_id=28383&atid=393414    A bug causing tables in the object tree to appear unsorted alphabetically:    https://sourceforge.net/tracker/index.php?func=detail&aid=1805954&group_id=28383&atid=393414    The 2.6.1 release files are available for download here:  http://sourceforge.net/project/showfiles.php?group_id=28383&package_id=29193
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The Story: What?s in a name? Back in the days of the Gingrich revolution, the nastiest label you could pin on a politician was ?liberal.? And now that open source has become an essential technology, the quickest way to get a rise out of an open source executive (and to get flamed on dozens of blogs) is to say his or her company is ?commercial.?[ Slideshow: 2007's top underreported tech stories ]                                                    No matter what you call them, open source companies have been steadily integrating parts of the hated commercial software subscription model into their business. First it was support, and now it is software access. Say it ain?t so, Linus.MySQL, for example, will charge users of its enterprise edition to use the code, not just for support as has been the traditional open source business model. ?We are looking for ways to extend our offerings in a way that can be monetized,? bluntly says Kaj Arno, the company?s VP for community.Chander Kant, founder of the open source storage software company Zmanda, is likewise frank about the need to drive revenue. Speaking of the open source community as a whole, he says, ?We are not a charity. We need to monetize.?Recognizing that charging to use open source software flies in the face of the original open source premise of freely sharable code open to everyone, Arno is quick to note that the paid version of Workbench has code and features not found in the free version ? and that the free version ?is not crippled.? Arno calls the move an experiment, and acknowledges that MySQL needs to move carefully to avoid upsetting the often quick-tempered open source community.Is this a trend? Red Monk analyst Stephen O?Grady says it is: ?Ultimately when you look at a high-profile firm like MySQL embracing it, it?s difficult to conclude anything else.?InfoWorld blogger (and IBM employee) Savio Rodrigues notes another example. In a recent blog post, he looked at changes to JBoss since it was purchased by Red Hat Software and concluded: ?The Fedora/JBoss subscription is just like the software subscription business model that commercial software vendors have been using for decades.?Does that mean a company that adopts the usage-based pricing model isn?t really open-source? That?s an interesting point, since as Zmanda?s Kant acknowledges, ?the litmus test of open source is control of the code.? Open source software delivered through appliances keeps the access ? and thus control ? away from users, he notes. But code binaries distributed as software remain open to their users ? for now, at least.The Bottom Line: Have MySQL and Red Hat run away from the principles of open source? Who cares. The real point is that the open source business model is evolving away from the ?free? model and toward an alternative development approach for commercial software. If you adopted open source due to its cost, you may not save as much as you thought. If you adopted open source for the access to source code or the community-supported development approach that is supposed to result in better software, it?s not yet clear if the greater commercialization will enhance those aspects or drive away the true believers and make open source no different than the old-fashioned commercial offerings.Complete list of 2007 underreported stories: 1.? Java is becoming the new Cobol 2.? Sun Microsystems is back in the game 3.? Hackers take aim at Mac OS X 4.? There are some threats you can worry less about 5.? Companies may have found a way around H-1B visa limits 6.? Open source?s new commercial strategy 7.? End-to-end Ethernet finally arrives 8.? Blade servers arrive for the masses 9.? BI is dead; long live BI 10. Balance of power shifts to software buyers
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ObjectStore suitably EdgeXtended by acquisition
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Open Source methodology has gained some ground in one of the last places you and I might expect: In the development area of corporations. Consultants are calling environments like Sourceforge Enterprise Edition a Digital Development Environment.
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OpenXava is a framework to develop Java Enterprise/J2EE applications rapidly and easily. It's based in business component concept. Feature rich and flexible since it's used for years to create business applications with Java.     Some new features of version 2.1.5 are:  - Refined look and feel of lists and collections for WebSphere Portal and Liferay in order to see clearly the seperation within cells. - WebSphere Portal 6 style improved: Sections and frames have native aspect; and a little problem with resolutions higher than 1600x has been fixed. - Support for Bulgarian language in portlet generation. - Filtering by year and month in list mode works fine in all databases (including Postgres and Informix). - New editors ValidValuesVerticalRadioButton and ValidValuesHorizontalRadioButton. - New stereotype IMAGE_LABEL/ETIQUETA_IMAGEN. - Fix: MapFacade.createReturningValues did not return values calculated from default-value-calculators. - New property hibernateJavaLoggingLevel available in xava.properties to set the logging level for Hibernate. - Fix: Overlapping properties and references in mapping did not work if the case of the columns did not match. - Fix: ModuleTestBase.assertCollectionRowCount and assertCollectionRowCount fails on a calculated collection with only one row. - Fix: Calculated properties using IModelCalculator or IEntityCalculator fail in collection (bug introduced in v2.1.4) - Fix: Focus positioning fails when there is an event associated to the last field of a group.  You can download it from   http://sourceforge.net/project/showfiles.php?group_id=123187     More info:   http://openxava.sourceforge.net
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Standardized open-source code for storage management is finally on its way, group announces.
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Sandro Zic recently gave a presentation on Java and PHP, and posted his slides here. I didn't attend his talk, so I don't have all the facts, but I would like to comment on one of his slides [...]. First, a minor point. Limited or no OOP has rarely stopped any software from being enterprise-ready. Most modern operating systems continue to be written in C, and the large Cobol programs running on mainframes that manage your bank accounts and insurance do not use OOP. [...] Let's address some of his other criticisms: Virtually no multi-threading, Lack of maintenance tools, and Immature frameworks.