CODEWITHSUNDEEP
upgradecometd
nvd_ai
nvd_ai

Reputation: 1100

Upgrade CometD from 2.4/2.5 to 2.9.1?

Can I expect that I replace the Java .jar files and client-side .js files of version 2.4 or 2.5 of CometD in an existing software that is running fine, with the same files in 2.9.1 and it all runs the same? 

1- Are the API of CometD exactly the same on all 2.x versions? 
2- Is there an upgrade guide that I can use?

Also, I noticed that on the client side, CometD 2.4/2.5 is not AMD and is a single file, but on 2.9.1 it is AMD-based. Is there a single .js file that contains all client-side CometD code?

Upvotes: 0

Views: 172

Answers (1)

sbordet
sbordet

Reputation: 18477

You can expect upgrades from 2.4/2.5 to 2.9.x to be either without problems, or requiring very little changes, so yes, it should be typically be a drop-in replacement.

While you're upgrading, I suggest to move to CometD 3. You can find here the migration guide from CometD 2.x.

CometD 2.9.x is AMD compliant, and the single file you should include in your HTML is typically org/cometd.js along with a binding for a toolkit (either jquery or dojo). If you use extensions, you should add also those, see for example http://docs.cometd.org/3/reference/#_primer, or if you don't want to use Maven, this other section.

Follow also the tutorials, that should get you going.

Full documentation link.

Upvotes: 1

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