package crms.ui;import java.util.*;public class UniqueWindowFactory {	HashMap hashWindows = new HashMap();	static UniqueWindowFactory instance = new UniqueWindowFactory();	private UniqueWindowFactory() {	}	public static UniqueWindowFactory getInstance() {		return instance;	}	/** Find or create an instance of a particular UniqueWindow */	public UniqueWindow getUniqueWindow(UniqueWindow window, Object data) {		String id = window.getUniqueID(data);		System.out.println("UniqueWindowFactory::getUniqueWindow: " + id);		UniqueWindow retwindow = (UniqueWindow)hashWindows.get(id);		if (retwindow == null) {			retwindow = window;			hashWindows.put(id, retwindow);			retwindow.setData(data);			retwindow.__id = id;			retwindow.__factory = this;			//System.out.println("UniqueWindowFactory:hashWindows.size()=" + hashWindows.size());		}		return retwindow;	}}