Security Sandbox Violation during run and debug after moving or copying a Flex project in Flex Builder

Ugh, this is one of those classic examples of getting sidetracked in your daily work because of some annoyances with Flex Builder. Today I copied an existing Flex Builder project in Eclipse to another directory (new renamed project). I then edited the project settings (renamed the project) before importing the new copied project into Eclipse. … Continue reading Security Sandbox Violation during run and debug after moving or copying a Flex project in Flex Builder

Book Review: Professional Cairngorm

This is a review of the book Professional Cairngorm by Jeremy Wischusen. When describing his motivations for writing this book the author tells a story about experience with Flex/AS3 development, but none of it using Cairngorm, then he had a job interview.... And in typical fashion, when he answered no to the "cairngorm experience" question, … Continue reading Book Review: Professional Cairngorm

Spring AS & Prana woes with blank prop or constructor args

UPDATE: The bug described here appears to be fixed as of 0.8 So I've been doing a fair amount of work with Spring Actionscript v0.7.1 (formally the Prana Framework). In AS3 you can define methods and/or constructors that take optional arguments. Optional arguments must always be defined after the required arguments and they are noted … Continue reading Spring AS & Prana woes with blank prop or constructor args

Easy Multipart file uploads / POSTs using URLStream or AS3HttpClientLib

When working on a cross runtime Zinc/AIR method method of posting files to a remote server, I came across Mike Stead's URLFileVariable and URLRequestBuilder classes which makes the process of uploading multiple files (or ByteArray's of data) via an HTTP POST much easier. Click here get his code The basic concept is this: assuming you … Continue reading Easy Multipart file uploads / POSTs using URLStream or AS3HttpClientLib

Strange IMPORT failure in Spring AS

So I've started to think about splitting up the main applicationContext.xml file in one of my projects. The current one is getting quite large. Spring AS has the ability to import bean/object definitions from another XML file of your choice such as the following example where my context defines one object "yObject" and then declares … Continue reading Strange IMPORT failure in Spring AS

Prana Framework is now under the Spring umbrella

Great news and I've been hoping for this for quite a while. Spring has taken the Prana Framework under its wing and added it as an official Spring extension called Spring Actionscript. Here is another post about this. When I first got into developing in AS3/Flex this past summer I immediately began looking for some … Continue reading Prana Framework is now under the Spring umbrella

Advanced HTTP operations in Flex outside of AIR

I am currently pretty deep into a Flex/AS3 RIA desktop app project whereby I have several advanced needs. Such as to download partial files to the desktop (byte-range requests), execute HEAD requests to get remote file sizes, execute multipart POSTs, talk to some REST apis, and finally be able to read any write HTTP headers..... … Continue reading Advanced HTTP operations in Flex outside of AIR

Local IO write performance in Zinc improved

Looks like the folks over at MDM have improved their local IO write support (windows only) with the release of v3.0.10 of MDM Zinc. This is probably due to Adobe AIR and people's complaints about the lack of better support for writing ByteArray data to disk in Zinc. Note that this new feature is only … Continue reading Local IO write performance in Zinc improved