Apple WebObjects 3.5 - Manual (Page 146)

Chapter 8 Creating Client-Side Components
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The value for a key must be a property-list type of object (either singly or
in combination, such as an array of string objects). The corresponding
property-list type of objects for Objective-C and Java are:
The remaining steps apply only if the applet has an action.
6. Declare an instance variable for the applet’s Association object and then, in
setAssociation , assign the passed-in object to that variable.
protected Association _assoc;
...
synchronized public void setAssociation(Association assoc) {
_assoc = assoc;
}
The Association object must be stored so that it can be used later as the
receiver of the
invokeAction message. The Association forwards the action to
the AppletGroupController, which handles the invocation of the server-
side action method.
7. When an action is invoked in the applet, send invokeAction to the applet’s
Association.
synchronized public boolean action(Event evt, Object what) {
if (_assoc != null) {
_assoc.invokeAction("action");
}
return true;
}
When You Don’t Have an Applet’s Source Code
If you have an applet but do not have the source code for it, you must follow
these steps to create an Association class for it:
Objective-C Java
NSString String
NSArray Vector
NSDictionary Hashtable
NSData byte[]