shape.java

来自「JAVA模式开发中的Bridge模式举例」· Java 代码 · 共 19 行

/* Generated by Together */

abstract public class Shape {
    public Shape(Drawing drawing) {
        drawingUtility = drawing;
    }

    public abstract void draw();

    public void drawLine(double x1, double y1, double x2, double y2) {
        drawingUtility.drawLine(x1,y1,x2,y2);
    }

    /**
     * @link aggregation 
     */
    private Drawing drawingUtility;
}