程序包 com.example.graphics.command

类 AddShapeCommand

java.lang.Object

com.example.graphics.command.AddShapeCommand

所有已实现的接口:

Command

public class AddShapeCommand
extends Object
implements Command

Command for adding a shape to a collection. This is an implementation of the Command pattern.

字段概要

字段

修饰符和类型	字段	说明
private final Shape	shape
private final List<Shape>	shapes

构造器概要

构造器

构造器	说明
AddShapeCommand(List<Shape> shapes, Shape shape)	Constructor for the AddShapeCommand

方法概要

修饰符和类型	方法	说明
void	execute()	Execute the command
void	undo()	Undo the command

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

shapes

private final List<Shape> shapes

shape

private final Shape shape

构造器详细资料

AddShapeCommand

public AddShapeCommand(List<Shape> shapes,
 Shape shape)

Constructor for the AddShapeCommand

参数:

shapes - the collection of shapes to modify

shape - the shape to add

方法详细资料

execute

public void execute()

从接口复制的说明: Command

Execute the command

指定者:

execute 在接口中 Command

undo

public void undo()

从接口复制的说明: Command

Undo the command

指定者:

undo 在接口中 Command