DecoratingListener

java.lang.Object
- org.eclipse.jetty.servlet.DecoratingListener

All Implemented Interfaces:

java.util.EventListener, javax.servlet.ServletContextAttributeListener

Direct Known Subclasses:

CdiDecoratingListener, 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 Description

private static class DecoratingListener.DynamicDecorator

Field Summary

Fields
Modifier and Type	Field	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 Description

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

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	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