# Class: BulletinChangeEvent
• BulletinChangeEvent()
公告信息改变事件
# Constructors
# constructor
+ new BulletinChangeEvent(type: BulletinChangeEventType, bulletinId: number, previousValue?: ReadonlyClone‹Bulletin›, currentValue?: ReadonlyClone‹Bulletin›): BulletinChangeEvent
Overrides void
# 参数:
| 属性 | 类型 |
|---|---|
type | BulletinChangeEventType |
bulletinId | number |
previousValue? | ReadonlyClone‹Bulletin› |
currentValue? | ReadonlyClone‹Bulletin› |
# 返回值:
# Properties
# Readonly bulletinId
• bulletinId: number
公告 ID
Returns: number
# Readonly currentValue
• currentValue: ReadonlyClone‹Bulletin | undefined›
Inherited from AccountUpdateEvent.currentValue
数据改变后的值
Returns: ReadonlyClone‹Bulletin | undefined›
# Readonly previousValue
• previousValue: ReadonlyClone‹Bulletin | undefined›
Inherited from AccountUpdateEvent.previousValue
数据改变前的值
Returns: ReadonlyClone‹Bulletin | undefined›
# Readonly type
• type: BulletinChangeEventType
Inherited from AccountDisplacedEvent.type
事件类型，由具体的事件构造时提供
Returns: BulletinChangeEventType