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OSGi Release 6 Specifications add Data Transfer Objects and Versioning Annotations

by Alex Blewitt on  Jul 14, 2014

At last month's OSGi DevCon in New York, the OSGi Alliance released OSGi Core Release 6. This adds a standard for representing Data Transfer Objects and a way of annotating interfaces indicating whether they are supposed to be implemented or used by clients. In addition, an osgi.native namespace and extension bundle activators have been added; read on to find out more.

Facebook Open-sources Haxl: Implicit, Concurrent Data Access Using Haskell

by Roopesh Shenoy on  Jun 11, 2014

Facebook has open-sourced Haxl, a library for efficient, concurrent data-access. The library leverages the traditional strengths of Haskell such as expressive type system, correctness and safety guarantees, as well as GHC's high performance run-time to solve the thorny issue of implicit, concurrent data access.

Rails 4.1 Improves Boot Time and Responsive Layouts

by Mirko Stocker on  Apr 09, 2014

Rails 4.1 can now preload your application to improve startup time and comes with improvements for Action Pack, Active Record, and Action Mailer.

Having Actions Done from Retrospectives

by Ben Linders on  Feb 27, 2014

Agile retrospectives help teams to find and do actions to improve continuously. There are different ways to do follow up on the actions and to evaluate if actions are leading to better team performance and more value delivered to customers.

OpenAccess ORM Renamed As Telerik Data Access with Improved UI and Colored Visual Designer

by Anand Narayanaswamy on  Feb 18, 2014

Telerik recently renamed OpenAccess ORM as Telerik Data Access with Improved User Interface and colored visual designer in addition to Telerik.DataAccess.Core NuGet, Telerik.DataAccess.Fluent and Telerik.DataAccess.Fluent.Sample NuGet packages.

Functional Relational Mapping Library Slick 2.0 Released

by Jan Stenberg on  Jan 26, 2014

Version 2.0 of Slick, a Functional-Relational Mapping, FRM, library for Scala, (corresponding to an Object-Relational Mapper, ORM, for object-oriented languages), was recently released with a code generator for reverse-engineering a database schema and new driver architecture to allow support for non-SQL databases.

OpenAccess ORM Q3 2013 SP1 Adds VS 2013 Support, Discontinued Classic Wizards, Oracle 9i and MySQL 5

by Anand Narayanaswamy on  Jan 03, 2014

The recently released OpenAccess ORM Q3 2013 SP1 by Telerik has introduced support for Visual Studio 2013 in addition to extended support for Visual Studio 2008. Moreover, support for classic wizards, Oracle 9i and MySQL 5.0 will be discontinued beginning with the next release of OpenAccess ORM.

ORM Tool Hibernate 4.3 Released, Implementing JPA 2.1 Specification

by Jan Stenberg on  Dec 31, 2013 1

The final version of the Object-Relational Mapping, ORM framework Hibernate 4.3 was recently released and is now a certified implementation of the JPA 2.1 specification, (JSR 338), released in May 2013.

A Proposal for a Database URI Standard

by Jonathan Allen on  Dec 20, 2013

David Wheeler has proposed a standard URI format for database connections. This proposal would allow applications built on different technologies to share the same connection string. That would be beneficial for a wide variety of tools including report builders, automated build and deploy tools, and ORMs.

Frans Bouma Argues Code First O/R Mapping is “Silly”

by Jonathan Allen on  Dec 18, 2013 34

When building a database-backed project using an ORM, developers can choose between starting with database tables, classes, or abstract models. To open the debate, we offer you Frans Bouma’s argument that, “Code-first O/R mapping is actually rather silly”.

Large Model Problems Continue to Plague Entity Framework, NHibernate

by Jonathan Allen on  Dec 17, 2013

Entity Framework continues to have performance problems when using larger EDMX models to generate classes. “If the EDMX only has one entity type materialization takes 840 ms […] but when the EDMX contains a richer model, for example one with 67 entity types and 92 associations, the same test takes 7246 ms to complete”.

Open Source SQL-in-Hadoop Solutions: Where Are We?

by Michael Hausenblas on  Dec 10, 2013 1

With Facebook recently releasing Presto as open source, the already crowded SQL-in-Hadoop market just became a tad more intricate. A number of open source tools are competing for the attention of developers: Hortonworks Stinger initiative around Hive, Apache Drill, Apache Tajo, Cloudera’s Impala, Salesforce’s Phoenix (for HBase) and now Facebook’s Presto.

ORM Profiler v1.5 with Entity Framework 6 and Async Support

by Anand Narayanaswamy on  Oct 11, 2013

ORM Profiler v1.5 has been released with support for Entity Framework 6 and Async in addition to several improvements and bug fixes.

Integrate OpenAccess ORM with NAnt using Clean, Build and Enhance Targets

by Anand Narayanaswamy on  Sep 04, 2013

Telerik OpenAccess ORM integrates with NAnt using clean, build and enhance targets by making use of XML mapping.

ORMs And Persistence Ignorance

by Roopesh Shenoy on  Aug 29, 2013

Julie Lerman recently noted that Entity Framework can work with classes having private constructors and private property setters, which promotes persistence ignorance. We explore further.

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