javax.servlet
类 ServletContextAttributeEvent

java.lang.Object
  java.util.EventObject
      javax.servlet.ServletContextEvent
          javax.servlet.ServletContextAttributeEvent

所有已实现的接口：

Serializable

public class ServletContextAttributeEvent
extends ServletContextEvent

Event class for notifications about changes to the attributes of the ServletContext of a web application.

从以下版本开始：

Servlet 2.3

另请参见：

ServletContextAttributeListener, 序列化表格

字段摘要

从类 java.util.EventObject 继承的字段

source

构造方法摘要

ServletContextAttributeEvent(ServletContext source, String name, Object value)
Constructs a ServletContextAttributeEvent from the given ServletContext, attribute name, and attribute value.

方法摘要

String	getName() Gets the name of the ServletContext attribute that changed.
Object	getValue() Gets the value of the ServletContext attribute that changed.

从类 javax.servlet.ServletContextEvent 继承的方法

getServletContext

从类 java.util.EventObject 继承的方法

getSource, toString

从类 java.lang.Object 继承的方法

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

构造方法详细信息

ServletContextAttributeEvent

public ServletContextAttributeEvent(ServletContext source,
                                    String name,
                                    Object value)

Constructs a ServletContextAttributeEvent from the given ServletContext, attribute name, and attribute value.

参数：

source - the ServletContext whose attribute changed

name - the name of the ServletContext attribute that changed

value - the value of the ServletContext attribute that changed

方法详细信息

getName

public String getName()

Gets the name of the ServletContext attribute that changed.

返回：

the name of the ServletContext attribute that changed

getValue

public Object getValue()

Gets the value of the ServletContext attribute that changed.

If the attribute was added, this is the value of the attribute. If the attribute was removed, this is the value of the removed attribute. If the attribute was replaced, this is the old value of the attribute.

返回：

the value of the ServletContext attribute that changed