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neerureddy
Purpose of Version Setting
Hi ,
Why should we need to set version for Apex Triggers and classes? What is the purpose of it?
Thanks,
Neeru.
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Hi ,
Why should we need to set version for Apex Triggers and classes? What is the purpose of it?
Thanks,
Neeru.
Hi werewolf,
I appreciate your help.I am very much clear about it now.
Thanks,
neeru.
All Answers
Each new release of Apex has a version so that it doesn't break code written prior to that.
Let's just say, for example, that today there's a class called Foo with a method called bar(), and bar() takes no parameters. Today's Apex version is 17.0. You write some code using bar() with no parameters.
Now Salesforce.com pushes out a new release. In this new release, bar() takes one parameter. The new release of Apex is version 18.0.
What will happen to your code, which was using bar() with no parameters? Will it break? No, because you are using Apex version 17.0, and in the 17.0 version, bar() takes no parameters. It will only break if you try to update your Apex class to use version 18.0 -- then you'll need to add a parameter there.
This versioning system is how Salesforce.com ensures that it does not break its customers' customizations when it pushes out new releases.
Hi werewolf,
I appreciate your help.I am very much clear about it now.
Thanks,
neeru.