I am having trouble properly extending Java classes with Rhino.
I am using the Mozilla version of Rhino and not the builtin version
with Java 6.
------------------------ Java code to extend
---------------------------------
public class Test {
public int value = 4;
public void foo() {
System.out.println(this.value);
}
}
------------------------ Javascript code
---------------------------------
// Wrap the Java class into an adapted Javascript constructor
function Parent() {
return new JavaAdapter(Test, this);
}
// Define a constructor for Child()
function Child() {
}
// Copy the parent's prototype into the child prototype
Child.prototype = new Parent();
// Override the java version of foo()
Child.prototype.foo = function() {
this.value = 1;
// call the "super" java version of this method
Parent.prototype.foo.call(this);
}
// Create an instance and test method
var t = new Child();
t.foo(); <------ Exception gets thrown here
----------- Error message from Rhino ------------------------
Java method "foo" cannot be assigned to. (#14)
This code works when modified to be totally Javascript based. I don't
believe it's an issue with the Javascript part. Am I going about this
the wrong way? Is it possible to actually extend Java classes?
Thank you for you help.
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