Generic types for listeners --------------------------- Key: PIVOT-670 URL: https://issues.apache.org/jira/browse/PIVOT-670 Project: Pivot Issue Type: Improvement Components: wtk Affects Versions: 1.5.2 Environment: All Reporter: Frédéric VERGEZ Priority: Trivial Fix For: 2.1
Could listener interfaces have generic types ? This would allow to be type safe in methods, and avoid objects casting. For instance in a ComponentMouseListener: public interface ComponentMouseListener<T extends Component> { /** * Component mouse button listener adapter. */ public static class Adapter implements ComponentMouseListener { @Override public boolean mouseMove(T component, int x, int y) { return false; } @Override public void mouseOver(T component) { } @Override public void mouseOut(T component) { } } /** * Called when the mouse is moved over a component. * * @param component * @param x * @param y * * @return * <tt>true</tt> to consume the event; <tt>false</tt> to allow it to * propagate. */ public boolean mouseMove(T component, int x, int y); /** * Called when the mouse enters a component. * * @param component */ public void mouseOver(T component); /** * Called when the mouse exits a component. * * @param component */ public void mouseOut(T component); } -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.