org.eclipse.jetty.servlet

Class DecoratingListener

java.lang.Object

org.eclipse.jetty.servlet.DecoratingListener

All Implemented Interfaces:

java.util.EventListener, javax.servlet.ServletContextAttributeListener

Direct Known Subclasses:

DecoratingListener

public class DecoratingListener
extends java.lang.Object
implements javax.servlet.ServletContextAttributeListener

A ServletContextAttributeListener that listens for a context attribute to obtain a decorator instance. The instance is then either coerced to a Decorator or reflected for decorator compatible methods so it can be added to the ServletContextHandler.getObjectFactory() as a Decorator.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
private static class	DecoratingListener.DynamicDecorator

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.String	_attributeName
private ServletContextHandler	_context
private Decorator	_decorator
private static java.lang.invoke.MethodType	DECORATE_TYPE
private static java.lang.invoke.MethodType	DESTROY_TYPE

Constructor Summary

Constructors

Constructor and Description
DecoratingListener(ServletContextHandler context, java.lang.String attributeName)

Method Summary

Modifier and Type	Method and Description
private Decorator	asDecorator(java.lang.Object object)
void	attributeAdded(javax.servlet.ServletContextAttributeEvent event)
void	attributeRemoved(javax.servlet.ServletContextAttributeEvent event)
void	attributeReplaced(javax.servlet.ServletContextAttributeEvent event)
java.lang.String	getAttributeName()
javax.servlet.ServletContext	getServletContext()

Methods inherited from class java.lang.Object

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

Field Detail

DECORATE_TYPE

private static final java.lang.invoke.MethodType DECORATE_TYPE

DESTROY_TYPE

private static final java.lang.invoke.MethodType DESTROY_TYPE

_context

private final ServletContextHandler _context

_attributeName

private final java.lang.String _attributeName

_decorator

private Decorator _decorator

Constructor Detail

DecoratingListener

public DecoratingListener(ServletContextHandler context,
                          java.lang.String attributeName)

Method Detail

getAttributeName

public java.lang.String getAttributeName()

getServletContext

public javax.servlet.ServletContext getServletContext()

asDecorator

private Decorator asDecorator(java.lang.Object object)

attributeAdded

public void attributeAdded(javax.servlet.ServletContextAttributeEvent event)

Specified by:

attributeAdded in interface javax.servlet.ServletContextAttributeListener

attributeRemoved

public void attributeRemoved(javax.servlet.ServletContextAttributeEvent event)

Specified by:

attributeRemoved in interface javax.servlet.ServletContextAttributeListener

attributeReplaced

public void attributeReplaced(javax.servlet.ServletContextAttributeEvent event)

Specified by:

attributeReplaced in interface javax.servlet.ServletContextAttributeListener