Re: Is it possible to implement a web worker with GWT?

Hi,

I'm not sure, will this project helps you: https://gitlab.com/ManfredTremmel/gwt-webworker?

I really want to use it, but can't figure out the docs.

In the GWT side, it says to use:

Worker worker = Worker.create(<javascriptname>) 

...

worker.postMessage("(may be serialized) data to handle in web worker"); 

What is the javascriptname?

If MyWebWorker.gwt.xml renames my webwork module to "mywebworker.wkr", do I use something like:

Worker.create("/mywebworker.wkr/mywebworker.wkr.nocache.js");

Other examples online seem to suggest so, but mywebworker.wkr.nocache.js isn't being generated in compilation so am stuck on what to do.

Anyone?

Shawn

t.br...@gmail.com schrieb am Freitag, 2. Oktober 2020 um 17:04:55 UTC+2:

It is, through a linker: http://www.gwtproject.org/doc/latest/DevGuideLinkers.html

It might work with the D8ScriptLinker shipped in GWT (https://github.com/gwtproject/gwt/blob/2.9.0/dev/core/src/com/google/gwt/core/linker/D8ScriptLinker.java); you'll have to declare it in a *.gwt.xml though (define-linker then add-linker).

Or there might be (IIRC, there are) libraries with such a linker specifically for workers.

On Thursday, October 1, 2020 at 10:43:37 PM UTC+2, Bruno Salmon wrote:

hi,

I have a GWT web app that I would like to make more reactive by moving some heavy computation code into web workers. This code doesn't need the context of the application to run, I just need to pass it a few input parameters so it should be a good fit for a web worker.

I see how the web app can instantiate web workers using elemental2.dom.Worker.

But as my worker code is in Java, I would like to know if I can use the GWT compiler to generate the worker itself. I expect a js file with a onmessage function as output that I can load from the web app.

Is it possible to do this?

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