I talked about the XML and JSON serialization of F# types in a previous post, and since then F# 3.0 has been released and a new [CLIMutable] was quietly added amidst the hype surrounding the awesome type providers! CLIMutable Attribute When applied to a F# record type, the CLIMutable attribute tells the F# compiler …
F# – XmlSerializer, Record types and [CLIMutable] Read More »
Just a quick note to say that another minor update to DynamoDB.SQL has been release, you can view the release notes here. The latest update adds support for a TSQL style WITH keyword for specifying optional parameters for tweaking the query/scan operation. For queries, you can specify the NoConsistentRead and PageSize options to use …
Whilst searching for an elegant solution to apply string interning across a large number of classes (we’re talking about hundreds of classes here..) it dawned on me that I can achieve this with ease using PostSharp’s LocationInterceptionAspect. All I needed was something along the lines of: You can apply this attribute to a class or …
Hi, just a quick to say that my talk with .Net Rocks is now available on their web site. In this talk I shared some insights into how F# is used in our stack to help us build the backend for our social games, specifically in the areas of: implementation of a slots engine which …
The series so far: Hello World example Beyond Hello World Within a workflow, not all activities have to be performed sequentially. In fact, to increase throughput and/or reduce the overall time required to finish a workflow, you might want to perform several activities in parallel provided that they don’t have any inter-dependencies and can …
Introduction to AWS SimpleWorkflow Extensions Part 3 – Parallelizing activities Read More »
The series so far: 1. Hello World example 3. Parallelizing activities In this post we’re going to go beyond the previous Hello World example and show you how to use the SWF extensions library to model workflows with multiple steps and allow data to flow naturally from one step to the next. When using …
Introduction to AWS SimpleWorkflow Extensions Part 2 – Beyond Hello World Read More »
Series so far: 2. Beyond Hello World 3. Parallelizing activities In my previous post I mentioned some of the shortcomings with Amazon SimpleWorkflow (SWF) which drove me to create an extension library on top of the standard .Net SDK to make it easier to model workflows and business processes using SWF. In this series …
Introduction to AWS SimpleWorkflow Extensions Part 1 – Hello World example Read More »
This is a F# implementation of the fast algorithm to count the number of inversions in an array, outlined in the Algorithms : Design and Analysis Part 1 course on Coursera.
Here’s a simple F# implementation of the merge sort algorithm (using mutable arrays) outlined in the Algorithms : Design and Analysis Part 1 course on Coursera. So refreshing to be writing simple sorting algorithms years after university, still fun!
Amazon SimpleWorkflow (abbreviated to SWF from here on) is a workflow service provided by Amazon which allows you to model business processes as workflows using a task based programming model. The service provides reliable task dispatch and state management so that you can focus on developing ‘workers’ to perform the tasks that are required to …
Making Amazon SimpleWorkflow simpler to work with Read More »
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