转载:
http://www.cnblogs.com/java-my-life/archive/2012/04/20/2455726.html#3617174
http://alicharles.com/article/jdk-decorator-pattern/
http://www.cnblogs.com/java-my-life/archive/2012/04/20/2455726.html#3617174
http://alicharles.com/article/jdk-decorator-pattern/
- public class Test {
- public static void main(String[] args) {
- Component c = new ConcreteComponent();
- Decorator d = new ConcreteDecoratorA(c);
- d.sampleOperation();
- }
- }
- interface Component {
- public void sampleOperation();
- }
- class ConcreteComponent implements Component {
- @Override
- public void sampleOperation() {
- // 写相关的业务代码
- }
- }
- class Decorator implements Component {
- private Component component;
- public Decorator(Component component) {
- this.component = component;
- }
- @Override
- public void sampleOperation() {
- // 委派给构件
- component.sampleOperation();
- }
- }
- class ConcreteDecoratorA extends Decorator {
- public ConcreteDecoratorA(Component component) {
- super(component);
- }
- @Override
- public void sampleOperation() {
- super.sampleOperation();
- // 写相关的业务代码
- }
- }
- class ConcreteDecoratorB extends Decorator {
- public ConcreteDecoratorB(Component component) {
- super(component);
- }
- @Override
- public void sampleOperation() {
- super.sampleOperation();
- // 写相关的业务代码
- }
- }
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/29254281/viewspace-2136140/ ，如需转载，请注明出处，否则将追究法律责任。
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