How to I expose a Java class's functionality via some JavaScript interface in GWT? -


say have java class course has method testmethod. how expose functionality such can interact using hand-written javascript follows:

somecourse.testmethod();

where somecourse passed directly java code via native method, like:

private native void associatecourse(course course) /*-{     somecourse = course; }-*/;

the main issue having in achieving gwt not provide way me access prototype of course constructor. example, following invalid:

private native void expose() /*-{     $wnd.course = @mypackage.course; }-*/;

because expects access field, not whole thing.

i avoid using library gwt exporter because feel having incorporate source code handles application logic make difficult separate 2 aspects of code, bad thing if code shared between gwt project , android application, example.

if use gwt 2.7+ can use new jsinterop. hidden behind compiler flag, works quite well.

it still experimental , may change in future releases.

take @ demo: https://www.youtube.com/watch?v=wfmd1gxr2tg


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