Servlet::ServletContextAttributeListener - context attribute listener interface

- NAME
- SYNOPSIS
- DESCRIPTION
- METHODS
- SEE ALSO
- AUTHOR

# NAME

Servlet::ServletContextAttributeListener - context attribute listener interface

# SYNOPSIS

      $listener->attributeAdded($event);

      $listener->attributeReplaced($event)

      $listener->attributeRemoved($event)

# DESCRIPTION

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.

# METHODS

For each of the following methods, the event passed to the method is of type Servlet::ServletContextAttributeEvent.

`attributeAdded($event)`
  Notification that a new attribute was added to the servlet context. Called after the attribute is added.

  Parameters:

  $event
    an instance of Servlet::ContextAttributeEvent

`attributeRemoved($event)`
  Notification that an existing attribute was removed from the servlet context. Called after the attribute is removed.

  Parameters:

  $event
    an instance of Servlet::ContextAttributeEvent

`attributeReplaceded($event)`
  Notification that an existing attribute on servlet context was replaced. Called after the attribute is replaced.

  Parameters:

  $event
    an instance of Servlet::ContextAttributeEvent

# SEE ALSO

the Servlet::ServletContext manpage, the Servlet::ContextAttributeEvent manpage

# AUTHOR

Brian Moseley, bcm@maz.org