uniquewindowfactory.java

CRMS客户关系管理系统(JAVA版）,这是一个客户关系管理系统。

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;
	}
}