Welcome!

Weblogic Authors: Yeshim Deniz, Elizabeth White, Michael Meiner, Michael Bushong, Avi Rosenthal

Related Topics: Adobe Flex

Adobe Flex: Article

How Do You Deploy Patches in Your Rich Internet Application?

OK, your Flex application is already deployed in production. How are you planning to deploy patches to your code?

OK, your Flex application is already deployed in production. How are you planning to deploy patches to your code? I mean bug fixes or enhancements to specific MXML components or ActionScript classes? Of course, you can recompile the entire application with hundreds of classes just to deploy a new version of the class MyGreatCreation.as. Let’s see if there is a way to deploy just MyGreatCreation leaving the rest of your application intact.

In Java world, the solution to this issue is pretty simple. A typical Java application consists of a number of .jar files (think libraries or swc) and there is a concept of a class path. If a program needs to use a class MyGreatCreation, the Java class loader tries to find it based on the classes or jars listed in the classpath. If there is more than one version of this class in the path, the class loader will grab the first one. This greatly simplifies deploying any patches in Java production applications. Just make changes to your class and place it in the jar that is listed first in the classpath. Then deploy just this jar in production, and the loader will be happy to pick up the brand new version of MyGreatCreation.

Luckily, we can use the same techniques in Flex, which also has concepts of classpath, class loaders and libraries.

Go to the Properties window of your Flex Builder project and check the build path of your application. At a minimum, you’ll find there a number of libraries (compiled swc files) that represent the Flex framework itself. The chances are that you’ve added more swc’s there that contain your application-specific code.

In any event, create a new Flex Library project called patches or something of this nature.  To be able to compile this project into an swc, add an empty ActionScript class there. We’ll be using the patches.swc as a first item in the build path of our main project.

In 2007 AJAXWorld Is Sponsored by More Than 70 Leading Rich Web Technology Companies
AJAXWorld Conference & Expo this year was sponsored by the world's leading rich web technology providers including: 3Tera, Addison-Wesley, Adobe, Apress, Backbase, Bindows, Conference Guru, Cynergy Systems, Dynamic Toolbar, Extension Media, Farata Systems, Flash Goddess, FrogLogic, GoingToMeet.com, Google, Helmi Technologies, IBM, ICEsoft, ILOG, IT Mill, Ittoolbox, JackBe, JetBrains, Kaazing, Krugle, Laszlo Systems, Lightstreamer, Manning Publications, Methods & Tools, Microsoft, Nexaweb, OpenSpot, OpSource, Oracle, Parasoft, Passport Corporation, PushToTest, Quasar Technologies, Rearden Commerce, Servoy, SmartClient / Isomorphic Software, SnapLogic, Sun Microsystems, TechTracker Media, Tele Atlas, The Thomson Corporation, ThinWire, TIBCO Software, TileStack, Universal Mind, Vertex Logic, Web Spiders, and Webtide.

More Stories By Yakov Fain

Yakov Fain is a Java Champion and a co-founder of the IT consultancy Farata Systems and the product company SuranceBay. He wrote a thousand blogs (http://yakovfain.com) and several books about software development. Yakov authored and co-authored such books as "Angular 2 Development with TypeScript", "Java 24-Hour Trainer", and "Enterprise Web Development". His Twitter tag is @yfain

Comments (0)

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


IoT & Smart Cities Stories
Early Bird Registration Discount Expires on August 31, 2018 Conference Registration Link ▸ HERE. Pick from all 200 sessions in all 10 tracks, plus 22 Keynotes & General Sessions! Lunch is served two days. EXPIRES AUGUST 31, 2018. Ticket prices: ($1,295-Aug 31) ($1,495-Oct 31) ($1,995-Nov 12) ($2,500-Walk-in)
Andrew Keys is Co-Founder of ConsenSys Enterprise. He comes to ConsenSys Enterprise with capital markets, technology and entrepreneurial experience. Previously, he worked for UBS investment bank in equities analysis. Later, he was responsible for the creation and distribution of life settlement products to hedge funds and investment banks. After, he co-founded a revenue cycle management company where he learned about Bitcoin and eventually Ethereal. Andrew's role at ConsenSys Enterprise is a mul...
Nicolas Fierro is CEO of MIMIR Blockchain Solutions. He is a programmer, technologist, and operations dev who has worked with Ethereum and blockchain since 2014. His knowledge in blockchain dates to when he performed dev ops services to the Ethereum Foundation as one the privileged few developers to work with the original core team in Switzerland.
René Bostic is the Technical VP of the IBM Cloud Unit in North America. Enjoying her career with IBM during the modern millennial technological era, she is an expert in cloud computing, DevOps and emerging cloud technologies such as Blockchain. Her strengths and core competencies include a proven record of accomplishments in consensus building at all levels to assess, plan, and implement enterprise and cloud computing solutions. René is a member of the Society of Women Engineers (SWE) and a m...
Digital Transformation and Disruption, Amazon Style - What You Can Learn. Chris Kocher is a co-founder of Grey Heron, a management and strategic marketing consulting firm. He has 25+ years in both strategic and hands-on operating experience helping executives and investors build revenues and shareholder value. He has consulted with over 130 companies on innovating with new business models, product strategies and monetization. Chris has held management positions at HP and Symantec in addition to ...
The challenges of aggregating data from consumer-oriented devices, such as wearable technologies and smart thermostats, are fairly well-understood. However, there are a new set of challenges for IoT devices that generate megabytes or gigabytes of data per second. Certainly, the infrastructure will have to change, as those volumes of data will likely overwhelm the available bandwidth for aggregating the data into a central repository. Ochandarena discusses a whole new way to think about your next...
CloudEXPO | DevOpsSUMMIT | DXWorldEXPO are the world's most influential, independent events where Cloud Computing was coined and where technology buyers and vendors meet to experience and discuss the big picture of Digital Transformation and all of the strategies, tactics, and tools they need to realize their goals. Sponsors of DXWorldEXPO | CloudEXPO benefit from unmatched branding, profile building and lead generation opportunities.
Dynatrace is an application performance management software company with products for the information technology departments and digital business owners of medium and large businesses. Building the Future of Monitoring with Artificial Intelligence. Today we can collect lots and lots of performance data. We build beautiful dashboards and even have fancy query languages to access and transform the data. Still performance data is a secret language only a couple of people understand. The more busine...
All in Mobile is a place where we continually maximize their impact by fostering understanding, empathy, insights, creativity and joy. They believe that a truly useful and desirable mobile app doesn't need the brightest idea or the most advanced technology. A great product begins with understanding people. It's easy to think that customers will love your app, but can you justify it? They make sure your final app is something that users truly want and need. The only way to do this is by ...
DXWorldEXPO LLC announced today that Big Data Federation to Exhibit at the 22nd International CloudEXPO, colocated with DevOpsSUMMIT and DXWorldEXPO, November 12-13, 2018 in New York City. Big Data Federation, Inc. develops and applies artificial intelligence to predict financial and economic events that matter. The company uncovers patterns and precise drivers of performance and outcomes with the aid of machine-learning algorithms, big data, and fundamental analysis. Their products are deployed...