org.codehaus.wadi.impl
Class DistributableAttributes

java.lang.Object
  org.codehaus.wadi.impl.StandardAttributes
      org.codehaus.wadi.impl.DistributableAttributes

All Implemented Interfaces:

Attributes, Config, DistributableValueConfig, SerializableContent, ValueConfig

Direct Known Subclasses:

LazyAttributes

public class DistributableAttributes

extends StandardAttributes

implements SerializableContent, DistributableValueConfig

A DistributableAttributes object needs to be Listener aware. When a Session is invalidated in Serialised state, we only want to deserialise the Attributes that we absolutely have to - in other words, those expecting some kind of notification (activation or unbinding). If the Context has HttpSessionAttributeListeners registered, then we will have to explicitly remove every attribute from every session anyway, so there is no need to keep a separate tally.

Version:

$Revision: 1139 $

Author:

Jules Gosnell

Field Summary

protected Set

_listenerNames

Fields inherited from class org.codehaus.wadi.impl.StandardAttributes

_config, _map

Constructor Summary

DistributableAttributes(AttributesConfig config, Map map)

Method Summary

ValueHelper	findHelper(Class type)
boolean	getHttpSessionAttributeListenersRegistered()
HttpSessionEvent	getHttpSessionEvent()
Set	getListenerNames()
Streamer	getStreamer()
protected boolean	isListener(Object o)
Object	put(Object key, Object newValue)
void	readContent(ObjectInput oi)
Object	remove(Object key)
void	writeContent(ObjectOutput oo)

Methods inherited from class org.codehaus.wadi.impl.StandardAttributes

clear, get, keySet, size

Methods inherited from class java.lang.Object

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

Field Detail

_listenerNames

protected Set _listenerNames

Constructor Detail

DistributableAttributes

public DistributableAttributes(AttributesConfig config,
                               Map map)

Method Detail

getListenerNames

public Set getListenerNames()

remove

public Object remove(Object key)

Specified by:

remove in interface Attributes

Overrides:

remove in class StandardAttributes

put

public Object put(Object key,
                  Object newValue)

Specified by:

put in interface Attributes

Overrides:

put in class StandardAttributes

isListener

protected boolean isListener(Object o)

readContent

public void readContent(ObjectInput oi)
                 throws IOException,
                        ClassNotFoundException

Specified by:

readContent in interface SerializableContent

Throws:

IOException

ClassNotFoundException

writeContent

public void writeContent(ObjectOutput oo)
                  throws IOException

Specified by:

writeContent in interface SerializableContent

Throws:

IOException

findHelper

public ValueHelper findHelper(Class type)

Specified by:

findHelper in interface DistributableValueConfig

getHttpSessionAttributeListenersRegistered

public boolean getHttpSessionAttributeListenersRegistered()

Specified by:

getHttpSessionAttributeListenersRegistered in interface DistributableValueConfig

getHttpSessionEvent

public HttpSessionEvent getHttpSessionEvent()

Specified by:

getHttpSessionEvent in interface DistributableValueConfig

getStreamer

public Streamer getStreamer()

Specified by:

getStreamer in interface DistributableValueConfig