程序包 com.example.graphics.command

类 RemoveShapeCommand

java.lang.Object

com.example.graphics.command.RemoveShapeCommand

所有已实现的接口:

Command

public class RemoveShapeCommand
extends Object
implements Command

Command for removing a shape from 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 int	index
private final Shape	shape
private final List<Shape>	shapes

构造器概要

构造器

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

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

index

private int index

构造器详细资料

RemoveShapeCommand

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

Constructor for the RemoveShapeCommand

参数:

shapes - the collection of shapes to modify

shape - the shape to remove

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