Name: krT82822 Date: 09/29/99


(see revised/expanded test case below)

This is the Transferable I used to create a generic
way to drag and drop objects within a single application.
I tried passing a TreePath[] to the constructor, but
there is an exception, and the message says "failed to parse."
I think there is a problem with the MimeType parsing
for arrays.

class ObjectTransferable implements Transferable {
        Object obj;
        DataFlavor flavor;
        DataFlavor [] flavors = new DataFlavor[1];

        public ObjectTransferable(Object o) throws ClassNotFoundException {
                obj = o;
                flavor = new DataFlavor(DataFlavor.javaJVMLocalObjectMimeType+"; class="+obj.getClass().getName());
                flavors[0] = flavor;
        }
        public Object getTransferData(DataFlavor df) {
                return obj;
        }
        public DataFlavor[] getTransferDataFlavors() {
                return flavors;
        }
        public boolean isDataFlavorSupported(DataFlavor df) {
                for (int i = 0; i < flavors.length; i++) {
                        if (df.equals(flavors[i])) {
                                return true;
                        }
                }
                return false;
        }
}
java version "1.2.2"
Classic VM (build JDK-1.2.2-W, native threads, sunwjit)
java full version "JDK-1.2.2-W"

----------------------

9/29/99 add'l feedback from user:

Well, I can't spare the time either, but in order to improve YOUR
product, I have included a full test case. See attachment.

I have a work around. Simply convert your array to a Vector or
other List. I haven't actually tried this, but I am fairly confident
that it would work.

I guess I'm not even sure that passing an array around in a Transferable
is even possible...

-------------------

9/29/99 REVISED TEST CASE:

import java.awt.datatransfer.*;

class ObjectTransferable implements Transferable {
        Object obj;
        DataFlavor flavor;
        DataFlavor [] flavors = new DataFlavor[1];

        public ObjectTransferable(Object o) throws ClassNotFoundException {
                obj = o;
                flavor = new DataFlavor(DataFlavor.javaJVMLocalObjectMimeType+"; class="+obj.getClass().getName());
                flavors[0] = flavor;
        }
        public Object getTransferData(DataFlavor df) {
                return obj;
        }
        public DataFlavor[] getTransferDataFlavors() {
                return flavors;
        }
        public boolean isDataFlavorSupported(DataFlavor df) {
                for (int i = 0; i < flavors.length; i++) {
                        if (df.equals(flavors[i])) {
                                return true;
                        }
                }
                return false;
        }
        static public void main (String [] args) {
                try {
                        System.err.println("This works");
                        new ObjectTransferable(new String());
                        System.err.println("This doesnt");
                        new ObjectTransferable(new String[5]);
                } catch (Exception e) {
                        e.printStackTrace();
                }
        }
}


(Review ID: 95871)
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