“It’s a Knockout” – a phrase often heard at boxing matches. Or for those who remember 70’s and 80’s European TV shows, it was the name of a BBC television game show (It’s a Knockout or Jeux Sans Frontiers), also memorialized in the Peter Gabriel song “Games without Frontiers”.
Last year, when I blogged on NoSQL databases I briefly described the types of databases that are usually encompassed by the term NoSQL Databases. In that series of blogs I reviewed three types of databases, Key-Value Databases, Column-Oriented Databases and Document Databases, before focusing my attention on RavenDB – a document database.
In this blog, I will introduce a fourth class of NoSQL Database – Graph Databases. While Graph Databases are NoSQL Databases they are significantly different from the other three classes of NoSQL Databases. Graph Databases are based on the mathematical concepts of graph theory.
BigData – it seems to be a technology area that is in vogue. It encompasses technologies such as Hadoop, Hive, Pig and Sqoop – yes they all seem to have funny names.
Every quarter, in the Engineering dept. at DNN Corp, we have quarterly reviews where we review with our manager the previous quarter’s objectives and establish objectives for the upcoming quarter. At the beginning of this year one of my objectives was to become more familiar with these BigData technologies and determine which if any we need to be aware of.
About 18 months ago I started a series on NoSQL Databases. I haven’t blogged much on them for about a year, but recently I have been reading quite a lot recently about Big Data and NoSQL and my intentions is to continue blogging as I learn.
I continue my deep dive into DotNetNuke 7’s new DAL 2 with a look at the features that make up the repository component.
The IRepository of T interface can be considered the core of the new DAL 2. While the Execute methods of the IDataContext interface provide a DAL + like API, the benefits of the new API are really found when using the repository. The Repository Pattern is a common design pattern in modern data access layers.
So far I have done a relatively high level review of the DAL 2 API. In this blog article I will start to take a deep-dive into the components that make up the API, beginning with the DataContext.
The IDataContext interface and the PetaPocoDataContext concrete implementation act as the entry point into most aspects of the DAL 2 API. While implemented as an Interface there is no expectation that any other implementation will be created, but the interface allows us to mock a concrete implementation for Unit Testing purposes.
In my previous post I reviewed Icenium - a new ICE (Integrated Cloud Environment) that is based on Apache Cordova. But what is Apache Cordova?
About a year ago Adobe announced the purchase of Nitobe - a small Vancouver company - whose main claim to fame was PhoneGap - a framework for building cross-platform mobile Apps. With the purchase of Nitobe, the PhoneGap framework was released as an Open Source project and submitted to the Apache Software Foundation as an Incubator project.