Saturday, February 13, 2016

Re: Add GWT to an existing app engine project?

You can use any package structure you want. Your server classes can be in any package but you must make sure that the GWT compiler does not see them. The GWT compiler only sees code that is included using <source path="...."> in your *.gwt.xml file. By default GWT compiler looks in the package called "client" next to the *.gwt.xml file (most not be top level)

So for example you could do

    /MyProject
        /src
            /main
                /java
                    /com
                        /company
                            /web
                            WebApp.gwt.xml
                            ServletTest.java
                            AnotherServerClass.java

with WebApp.gwt.xml having <source path="web"/>. You can also move WebApp.gwt.xml into /web and then change it to <source path="" />. That makes it easier to exclude /web from your final *.war file as you don't need to deploy your GWT sources to the server. 

The <source> tag also allows you to exclude certain files and folders, so you have quite some flexibility.

-- J.

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