Howdy,
I'm wondering if it is possible to use JavaAdapter to provide
constructor arguments to a class when extending it?
I'm not sure how to explain this better but hopefully this code can
explain it:
package dogtest;
import org.mozilla.javascript.*;
public class asdf {
public String bval = "default value";
public asdf() {
}
public asdf(String bval) {
this.bval = bval;
}
public void implementMe() {
System.out.println("Original implementMe function.");
System.out.println("bval = " + bval);
};
public static void main(String[] args) {
Context cx;
Scriptable scope;
cx = ContextFactory.getGlobal().enterContext();
scope = cx.initStandardObjects();
Object wrappedOut = Context.javaToJS(System.out, scope);
ScriptableObject.putProperty(scope, "out", wrappedOut);
System.out.println("Instantiate & call via js JavaAdapter: ");
String toEval = "var foo = new
JavaAdapter(Packages.dogtest.asdf,
{implementMe:function(){out.println('New implementMe function.\\nbval
= ' + this.bval);}});"
+ "foo.implementMe();";
cx.evaluateString(scope, toEval, "eval", 1, null);
System.out.println("\nInstantiate & call via java: ");
asdf.inJava().implementMe();
System.out.println("\nInstantiate & call via js direct abstract
class: ");
cx.evaluateString(scope, "var dog = new
Packages.dogtest.asdf('hi
there');", "eval", 1, null);
// below line generates compile error
//cx.evaluateString(scope, "dog.implementMe = function()
{out.println('New implementMe function.\\nbval = ' + this.bval);}",
"eval", 1, null);
cx.evaluateString(scope, "dog.implementMe();", "eval", 1, null);
}
public static asdf inJava() {
return new asdf("new value") {
public void implementMe() {
System.out.println("New implementMe function");
System.out.println("bval = " +
this.bval.toString());
}
};
}
}
(I have put a copy up http://pastebin.com/m2d0045ee incase the
formatting got kludged)
Basically, I am using JavaAdapter to instantiate an abstract class.
Just to make life difficult I would like to instantiate it using a
custom constructor which takes arguments. Is there a way to do this?
Put another way, I want to achieve the functionality of the static
asdf.inJava() function, except in javascript.
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