db4o Developer Community

January 2008 - Posts

• Rollback strategies

  In this post Rodrigo introduced the concept of Transparent Persistence that makes developers life even easier as, once configured, db4o will take care of changed objects and make sure they are updated in the database (when the transaction gets committed) Read More... Posted Saturday, January 26, 2008 10:17 PM by Adriano Verona | 1 Comments Filed under: Java, .NET, C#, db4o, Callbacks, Transparent Activation Attachment(s): RollbackStrategySample.zip

• I/O Benchmarking and Simulation of Slower I/O Behaviour

  I/O access times play a crucial role in the overall performance of a database. That is why we introduce two tools to measure the actual I/O performance of a system as seen by db4o simulate the behaviour of a slower system on a faster one All the code Read More... Posted Saturday, January 26, 2008 12:53 AM by czimmerli | 2 Comments Filed under: Java, Development, Performance, Benchmark, I/O

• Beautifying the FOOT_HILLS

  In the java world a commonly accepted convention for naming constants is to use uppercase letters with words separated by underscores ("_"): MIN_DATE, MAX_DATE, etc. In the .Net world however the official recommendation is to use PascalCase to name constants Read More... Posted Tuesday, January 15, 2008 10:17 PM by Rodrigo B. de Oliveira | 0 Comments Filed under: .NET, db4o

• From Transparent Activation To Transparent Persistence

  Activation has been discussed in depth (no pun intended) before . Transparent Activation is db4o's ability to defer loading an object's state until just before it's accessed for the first time. Transparent Activation relieves programmers from keeping Read More... Posted Thursday, January 10, 2008 8:32 PM by Rodrigo B. de Oliveira | 11 Comments Filed under: .NET, db4o, cecil, Transparent Activation Attachment(s): TransparentPersistenceBlog.zip

• set() => store(), get() => queryByExample()

  A long, long time ago... I can still remember How object databases used to make me smile. And I knew if I had my chance That I could make those objects dance And maybe you'd be happy for a while. ( That was when I thought that only #set() and #get() are Read More... Posted Friday, January 04, 2008 7:15 AM by Carl Rosenberger | 8 Comments