http://www.dzone.com/links/users/links/257531.html DZone: fresh links for developers en-us Copyright (c) 2006 DZone, Inc. Thu, 21 Aug 2008 23:28:29 GMT The DZone community 2008-08-21T23:28:29Z en-us Copyright (c) 2006 DZone, Inc. http://www.dzone.com/links/feed/user/257531/rss.xml http://www.dzone.com/images/std/dzone.com_258x55.gif http://www.dzone.com/links/ http://www.dzone.com/links/rss/or_impedance_mismatch_users_speak_up.html A new series of interviews with users of technologies for storing and handling persistent objects. 'users' are defined in a very broad sense, including business line managers, CTOs, software architects, consultants, developers, and researchers. announcement database standards trends Thu, 14 Aug 2008 05:42:07 GMT http://www.dzone.com/links/103428.html gerps 2008-08-14T05:42:07Z A new series of interviews with users of technologies for storing and handling persistent objects. 'users' are defined in a very broad sense, including business line managers, CTOs, software architects, consultants, developers, and researchers.]]> 103428 2008-08-14T05:42:07Z 2 0 19 0 http://www.dzone.com/links/images/thumbs/120x90/103428.jpg gerps http://www.dzone.com/links/images/avatars/257531.gif http://www.dzone.com/links/rss/soltice_combines_flex_osgi_and_db4o.html Solstice is the first framework to integrate Flex and OSGi in a single out-of-the-box package. Even though it's still in alpha, it provides a rich set of open source products and technologies, including Adobe Flex, Adobe BlazeDS, OSGi, Eclipse Equinox, Eclipse Equinox Servlet Bridge, JBoss, Felix and db4o. So far it provides the following: - An OSGi 4 compliant container with Flex-based management console. - A platform for deploying modular Flex applications as OSGi bundles. - Rich server functionality using Blaze DS to expose OSGi services as remote objects. announcement database flash-flex ria Thu, 14 Aug 2008 08:53:37 GMT http://www.dzone.com/links/103410.html gerps 2008-08-14T08:53:37Z Solstice is the first framework to integrate Flex and OSGi in a single out-of-the-box package. Even though it's still in alpha, it provides a rich set of open source products and technologies, including Adobe Flex, Adobe BlazeDS, OSGi, Eclipse Equinox, Eclipse Equinox Servlet Bridge, JBoss, Felix and db4o. So far it provides the following: - An OSGi 4 compliant container with Flex-based management console. - A platform for deploying modular Flex applications as OSGi bundles. - Rich server functionality using Blaze DS to expose OSGi services as remote objects.]]> 103410 2008-08-14T04:40:56Z 2008-08-14T08:53:37Z 6 0 174 0 http://www.dzone.com/links/images/thumbs/120x90/103410.jpg gerps http://www.dzone.com/links/images/avatars/257531.gif http://www.dzone.com/links/rss/infoworld_awards_db4o_with_best_of_open_source_de.html "db4o began life as a Java database library, but its designers have since created parallel editions for the .Net languages. In 2005, db4o implemented Native Queries, which allow you to express queries as Java (or .Net) methods. Recent additions to the library include Transparent Update and Transparent Activation, which more completely automate object persistence. The engine itself deduces how much of a persistent object's members must be read from and written to storage, simplifying coding and providing better memory management. Also new in db4o is support for Microsoft LINQ." .net announcement database java Wed, 06 Aug 2008 07:31:18 GMT http://www.dzone.com/links/101394.html gerps 2008-08-06T07:31:18Z "db4o began life as a Java database library, but its designers have since created parallel editions for the .Net languages. In 2005, db4o implemented Native Queries, which allow you to express queries as Java (or .Net) methods. Recent additions to the library include Transparent Update and Transparent Activation, which more completely automate object persistence. The engine itself deduces how much of a persistent object's members must be read from and written to storage, simplifying coding and providing better memory management. Also new in db4o is support for Microsoft LINQ."]]> 101394 2008-08-06T07:31:18Z 2 0 22 0 http://www.dzone.com/links/images/thumbs/120x90/101394.jpg gerps http://www.dzone.com/links/images/avatars/257531.gif http://www.dzone.com/links/rss/db4o_debugging_ta_enhanced_code_and_the_observer.html Lead developer Rodrigo B. de Oliveira explains how to avoid pitfalls while debugging db4o based applications leveraging Transparent Activation .net database how-to java Wed, 30 Jul 2008 05:46:54 GMT http://www.dzone.com/links/99277.html gerps 2008-07-30T05:46:54Z Lead developer Rodrigo B. de Oliveira explains how to avoid pitfalls while debugging db4o based applications leveraging Transparent Activation]]> 99277 2008-07-30T05:46:54Z 5 0 6 0 http://www.dzone.com/links/images/thumbs/120x90/99277.jpg gerps http://www.dzone.com/links/images/avatars/257531.gif http://www.dzone.com/links/rss/performance_contest_to_make_db4o_faster.html Basically participants will provide patches to the db4o core that impact on performance and then these modifications will be judged by the community to select the winners (6000 usd in prizes) .net database java news Fri, 04 Jul 2008 19:40:15 GMT http://www.dzone.com/links/92627.html gerps 2008-07-04T19:40:15Z Basically participants will provide patches to the db4o core that impact on performance and then these modifications will be judged by the community to select the winners (6000 usd in prizes)]]> 92627 2008-07-04T19:40:15Z 4 0 11 0 http://www.dzone.com/links/images/thumbs/120x90/92627.jpg gerps http://www.dzone.com/links/images/avatars/257531.gif http://www.dzone.com/links/rss/avoiding_database_corruption_in_db4o.html db4o ACID capabilities briefly explained and also an explanation of the configuration setting #flushFileBuffers() .net database how-to java Wed, 18 Jun 2008 20:29:00 GMT http://www.dzone.com/links/88391.html gerps 2008-06-18T20:29:00Z db4o ACID capabilities briefly explained and also an explanation of the configuration setting #flushFileBuffers()]]> 88391 2008-06-18T20:29:00Z 3 0 15 0 http://www.dzone.com/links/images/thumbs/120x90/88391.jpg gerps http://www.dzone.com/links/images/avatars/257531.gif http://www.dzone.com/links/rss/pushed_updates_in_db4o.html A description of the recommended generic way for doing Pushed Updates on db4o. Pushed Updates basically are a mechanism to provide READ COMMITTED isolation from the point of view of your application when the user wants to avoid reading outdated objects from the local object cache. .net database java server Wed, 18 Jun 2008 20:25:20 GMT http://www.dzone.com/links/88390.html gerps 2008-06-18T20:25:20Z A description of the recommended generic way for doing Pushed Updates on db4o. Pushed Updates basically are a mechanism to provide READ COMMITTED isolation from the point of view of your application when the user wants to avoid reading outdated objects from the local object cache.]]> 88390 2008-06-18T20:25:20Z 3 0 13 0 http://www.dzone.com/links/images/thumbs/120x90/88390.jpg gerps http://www.dzone.com/links/images/avatars/257531.gif http://www.dzone.com/links/rss/groovy_and_db4o.html In this blog post, db4o Netbeans plugin creator Gerd Klevesaat explains how to use db4o under Groovy (through a builder implementation by the author). The post includes links to download the builder and source code examples. database frameworks groovy open source Mon, 16 Jun 2008 05:48:21 GMT http://www.dzone.com/links/87586.html gerps 2008-06-16T05:48:21Z In this blog post, db4o Netbeans plugin creator Gerd Klevesaat explains how to use db4o under Groovy (through a builder implementation by the author). The post includes links to download the builder and source code examples.]]> 87586 2008-06-16T05:48:21Z 4 0 20 0 http://www.dzone.com/links/images/thumbs/120x90/87586.jpg gerps http://www.dzone.com/links/images/avatars/257531.gif http://www.dzone.com/links/rss/a_quick_database_comparison_of_db4o_and_sql_datab.html This short evaluation is based on some knowledge that Peter Karich gained through the project at gstpl.sourceforge.net. It's a short summary of which persistent mechanism could be good for you. Peter compares the object oriented database ’db4o’ (database for objects) with the object-relational mapper ’Cayenne’ and the SQL database ’Derby’. He used db4o 6.1, cayenne 2.0.2 and derby 10.2.2.0. Note: db4o already supports automatic activation through Transparent Activation (so the assertion that you always have to do manual activation of persisted objects is outdated) database java open source reviews Sat, 14 Jun 2008 23:57:04 GMT http://www.dzone.com/links/87403.html gerps 2008-06-14T23:57:04Z This short evaluation is based on some knowledge that Peter Karich gained through the project at gstpl.sourceforge.net. It's a short summary of which persistent mechanism could be good for you. Peter compares the object oriented database ’db4o’ (database for objects) with the object-relational mapper ’Cayenne’ and the SQL database ’Derby’. He used db4o 6.1, cayenne 2.0.2 and derby 10.2.2.0. Note: db4o already supports automatic activation through Transparent Activation (so the assertion that you always have to do manual activation of persisted objects is outdated)]]> 87403 2008-06-14T23:57:04Z 2 0 29 0 http://www.dzone.com/links/images/thumbs/120x90/87403.jpg gerps http://www.dzone.com/links/images/avatars/257531.gif http://www.dzone.com/links/rss/rapid_linux_apps_using_object_databases.html When you think of databases usually MySQL or Oracle or even Microsoft SQL Server come to mind. Yet, object oriented databases have the potential to cut down coding nuts and bolts and speed up app development time – particularly for those migrating to Linux from Windows. Here’s one such compelling SourceForge hosted open source system to do just this -> db4o .net database java open source Fri, 13 Jun 2008 12:13:02 GMT http://www.dzone.com/links/86722.html gerps 2008-06-13T12:13:02Z When you think of databases usually MySQL or Oracle or even Microsoft SQL Server come to mind. Yet, object oriented databases have the potential to cut down coding nuts and bolts and speed up app development time – particularly for those migrating to Linux from Windows. Here’s one such compelling SourceForge hosted open source system to do just this -> db4o]]> 86722 2008-06-11T18:09:11Z 2008-06-13T12:13:02Z 5 0 458 2 http://www.dzone.com/links/images/thumbs/120x90/86722.jpg gerps http://www.dzone.com/links/images/avatars/257531.gif http://www.dzone.com/links/rss/db4os_sophisticated_crossplatform_translation_too.html Sharpen is a Java to C# source code conversion tool is now available to the public as free software. db4objects has used the tool extensively to generate most of the .NET db4o engine core code and unit test suites from Java sources. .net java open source tools Wed, 11 Jun 2008 21:08:21 GMT http://www.dzone.com/links/86707.html gerps 2008-06-11T21:08:21Z Sharpen is a Java to C# source code conversion tool is now available to the public as free software. db4objects has used the tool extensively to generate most of the .NET db4o engine core code and unit test suites from Java sources.]]> 86707 2008-06-11T16:49:01Z 2008-06-11T21:08:21Z 8 0 147 0 http://www.dzone.com/links/images/thumbs/120x90/86707.jpg gerps http://www.dzone.com/links/images/avatars/257531.gif http://www.dzone.com/links/rss/java_object_persistence_state_of_the_union_part_i.html ODBMS.ORG, a vendor-independent non-profit group of high-profile software experts lead by Prof. Roberto Zicari, today announced a new, second sequel to its popular panel discussion Java Object Persistence: State of the Union, adding responses from the ODBMS.ORG experts Jose Blakeley (Microsoft), Rick Cattell (Sun Microsystems), William Cook (University of Texas at Austin), Robert Greene (Versant), and Alan Santos (Progress). The panel addressed the ever open issue of the impedance mismatch, a problem which has existed ever since computers were used to persistently store data - in file systems or database management systems -, and where no fully satisfactory solutions have been found as of yet. database news standards trends Tue, 27 May 2008 21:07:46 GMT http://www.dzone.com/links/83326.html gerps 2008-05-27T21:07:46Z ODBMS.ORG, a vendor-independent non-profit group of high-profile software experts lead by Prof. Roberto Zicari, today announced a new, second sequel to its popular panel discussion Java Object Persistence: State of the Union, adding responses from the ODBMS.ORG experts Jose Blakeley (Microsoft), Rick Cattell (Sun Microsystems), William Cook (University of Texas at Austin), Robert Greene (Versant), and Alan Santos (Progress). The panel addressed the ever open issue of the impedance mismatch, a problem which has existed ever since computers were used to persistently store data - in file systems or database management systems -, and where no fully satisfactory solutions have been found as of yet.]]> 83326 2008-05-27T21:07:46Z 1 0 18 1 http://www.dzone.com/links/images/thumbs/120x90/83326.jpg gerps http://www.dzone.com/links/images/avatars/257531.gif http://www.dzone.com/links/rss/sharpen_your_java_app_now_java_to_c_converter_rel.html As of today, db4objects releases its Eclipse based Java to C# source code conversion tool "sharpen" as free software. Sharpen is the "secret sauce" that allows the db4o object database engine to be available in native versions for the Java and .NET platforms from a single code base. .net database java open source Thu, 22 May 2008 12:45:44 GMT http://www.dzone.com/links/82276.html gerps 2008-05-22T12:45:44Z As of today, db4objects releases its Eclipse based Java to C# source code conversion tool "sharpen" as free software. Sharpen is the "secret sauce" that allows the db4o object database engine to be available in native versions for the Java and .NET platforms from a single code base.]]> 82276 2008-05-22T06:47:37Z 2008-05-22T12:45:44Z 10 0 257 0 http://www.dzone.com/links/images/thumbs/120x90/82276.jpg gerps http://www.dzone.com/links/images/avatars/257531.gif http://www.dzone.com/links/rss/db4o_user_conference_2008_synopsis.html The db4o User Conference 2008 held in Berlin just ended and it was a complete success! Check the following db4o related issues: -Roadmap -Pairing and Paircasts -db4o Java IDE plugins -Object Manager Enterprise (OME) offering -Spring and db4o -JPOX and db4o -LINQ adapter for db4o -Eiffel-db4o connector -db4o Web Application -The Sovereign platform Enjoy! .net database java open source Wed, 26 Mar 2008 20:03:50 GMT http://www.dzone.com/links/72822.html gerps 2008-03-26T20:03:50Z The db4o User Conference 2008 held in Berlin just ended and it was a complete success! Check the following db4o related issues: -Roadmap -Pairing and Paircasts -db4o Java IDE plugins -Object Manager Enterprise (OME) offering -Spring and db4o -JPOX and db4o -LINQ adapter for db4o -Eiffel-db4o connector -db4o Web Application -The Sovereign platform Enjoy!]]> 72822 2008-03-26T20:03:50Z 4 0 18 0 http://www.dzone.com/links/images/thumbs/120x90/72822.jpg gerps http://www.dzone.com/links/images/avatars/257531.gif http://www.dzone.com/links/rss/db4o_contact_sync_sample_for_windows_mobile_6.html This video shows a sample project to do over-the-air Pocket Outlok Contact synchronization on a Windows Mobile 6 device with a db4o server using db4o synchronization technology (dRS). Full source code is available here: http://projects.db4o.com/WM6ContactSync Higher resolution version (Flash): http://smartware.com.ar/tutorials/WM6ContactSync.html db4o developer site: http://developer.db4o.com (db4o downloads, docs, forums, etc) database how-to java mobile Fri, 09 Nov 2007 12:44:19 GMT http://www.dzone.com/links/52174.html gerps 2007-11-09T12:44:19Z This video shows a sample project to do over-the-air Pocket Outlok Contact synchronization on a Windows Mobile 6 device with a db4o server using db4o synchronization technology (dRS). Full source code is available here: http://projects.db4o.com/WM6ContactSync Higher resolution version (Flash): http://smartware.com.ar/tutorials/WM6ContactSync.html db4o developer site: http://developer.db4o.com (db4o downloads, docs, forums, etc)]]> 52174 2007-11-09T12:44:19Z 1 0 7 0 http://www.dzone.com/links/images/thumbs/120x90/52174.jpg gerps http://www.dzone.com/links/images/avatars/257531.gif