Hi Dan.
On 16/05/2010 9:36 AM, Dan Howard wrote:
Basically I'm trying to pass a javaScript function to a Java method to
act as a callback to the script.
...
public void callFromRhino(Object callback) {
Don't make this take an Object. Instead, have it take an interface with
a single method on it whose signature matches the desired JS function.
For example:
interface EventCallback {
void eventOccurred(int eventType);
}
public void callFromRhino(EventCallback callback) {
// some time later you might call callback.eventOccurred(123)
}
and then in JS you can do:
function junk(eventType) { ... }
test.callFromRhino(junk);
In your example it looks like you don't have any parameters in your
callback function, so you could just use a Runnable:
public void callFromRhino(Runnable callback) {
// some time later you might call callback.run()
}
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