Java Development

[adisonjames]

Hello,

I have been recently reading more about RuntimeStore and Singleton and how it is "best practice" not to create a static instance of Ui/Application.

I have coded myself up a storm where I reference the Ui/Application in the

public static void main(String [] a){} so I need for the application instance to be static.

Because I have coded with this critical mistake (although I have managed to keep some complicated code bits together) I am thiking I should root out this problem before I go any further.

The main reason I use an instance of Ui/Application in the main method is due to the fact that I check for RuntimeStore instances and if my application instance does exist, I need a "container" Ui/Application static instance to receive the Singleton.

How would I go about uprooting my issue?  I will try to parse out some of my code later.

Thank you for your help!

[peter_strange]

I'm not sure I understand why RuntimeStore does not provide you with an easy answer to this question.

Currently I presume you do something like:

MyAPP....

to reference things that are 'static' in your application, i.e. shared stuff that you can access from anywhere.

I suspect that you can just replace all of these with

MyAPP.getInstance().....

Where getInstance obtains the singleton entry in RunTimeStore that has the data you want.  I think this KB article explains this:

How to - Create a singleton using the RuntimeStore
Article Number: DB-00686
http://www.blackberry.com/knowledgecenterpublic/livelink.exe/fetch/2000/348583/800332/832062/How_to_...

[adisonjames]

I am all backed up and about to attempt some refactoring.  The reason that my application instance is static is because I refer to the instance in auto start modules while in the static main method.

This in turn is because, in my auto startup module I make a singleton of MyAppInstance and then refer again to this instance in the "launch" module entry point for the static main method.

Thank you for your guidance!