ServletContextAttributeListener (Java EE 5 SDK)

Java

previous page next page

概述

软件包

类

树

已过时

索引

帮助

Java EE 5 SDK

深圳电信培训中心.徐海蛟老师.

上一个类 下一个类

框架 无框架

摘要: 嵌套 | 字段 | 构造器 | 方法

详细信息: 字段 | 构造器 | 方法

javax.servlet Interface ServletContextAttributeListener

所有父接口:: EventListener

public interface ServletContextAttributeListener
extends EventListener

Implementations of this interface receive notifications of changes to the attribute list on the servlet context of a web application. To receive notification events, the implementation class must be configured in the deployment descriptor for the web application.

从以下版本开始:: v 2.3
另请参见:: ServletContextAttributeEvent

方法摘要
`void`	`attributeAdded(ServletContextAttributeEvent scab)` Notification that a new attribute was added to the servlet context.
`void`	`attributeRemoved(ServletContextAttributeEvent scab)` Notification that an existing attribute has been removed from the servlet context.
`void`	`attributeReplaced(ServletContextAttributeEvent scab)` Notification that an attribute on the servlet context has been replaced.

方法详细信息

attributeAdded

void attributeAdded(ServletContextAttributeEvent scab)

Notification that a new attribute was added to the servlet context. Called after the attribute is added.

attributeRemoved

void attributeRemoved(ServletContextAttributeEvent scab)

Notification that an existing attribute has been removed from the servlet context. Called after the attribute is removed.

attributeReplaced

void attributeReplaced(ServletContextAttributeEvent scab)

Notification that an attribute on the servlet context has been replaced. Called after the attribute is replaced.

概述