com.sun.grizzly.cometd
Class DataHandler

java.lang.Object
  extended by com.sun.grizzly.cometd.DataHandler
All Implemented Interfaces:
CometHandler<Object[]>

public class DataHandler
extends Object
implements CometHandler<Object[]>

CometHandler used to support the meta channel Verb Connect and Reconnect. The DataHandler is holding the state of the long polled (Comet) connection.

Author:
Jeanfrancois Arcand, TAKAI, Naoto

Constructor Summary
DataHandler(BayeuxCometHandler bayeuxCometHandler)
           
 
Method Summary
 void addChannel(String channel)
           
 void attach(Object[] reqRes)
          Attach an intance of E to this class.
 Collection<String> getChannels()
           
 String getClientId()
           
 void onEvent(CometEvent event)
          Receive CometEvent notification.
 void onInitialize(CometEvent event)
          Receive CometEvent notification when Grizzly is about to suspend the connection.
 void onInterrupt(CometEvent event)
          Receive CometEvent notification when the underlying tcp communication is resumed by the Grizzly ARP.
 void onTerminate(CometEvent event)
          Receive CometEvent notification when the response is resumed by a CometHandler or by the CometContext
 boolean removeChannel(String channel)
           
 void setClientId(String clientId)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DataHandler

public DataHandler(BayeuxCometHandler bayeuxCometHandler)
Method Detail

attach

public void attach(Object[] reqRes)
Description copied from interface: CometHandler
Attach an intance of E to this class.

Specified by:
attach in interface CometHandler<Object[]>

onEvent

public void onEvent(CometEvent event)
             throws IOException
Description copied from interface: CometHandler
Receive CometEvent notification. This method will be invoked everytime a CometContext.notify(E) is invoked. The CometEvent will contains the message that can be pushed back to the remote client, cached or ignored. This method can also be used to resume a connection once a notified by invoking CometContext.resumeCometHandler(com.sun.enterprise.web.connector.grizzly.comet.CometHandler).

Specified by:
onEvent in interface CometHandler<Object[]>
Throws:
IOException

onInitialize

public void onInitialize(CometEvent event)
                  throws IOException
Description copied from interface: CometHandler
Receive CometEvent notification when Grizzly is about to suspend the connection. This method is always invoked during the processing of CometContext.addCometHandler(com.sun.enterprise.web.connector.grizzly.comet.CometHandler, boolean) operations.

Specified by:
onInitialize in interface CometHandler<Object[]>
Throws:
IOException

onTerminate

public void onTerminate(CometEvent event)
                 throws IOException
Description copied from interface: CometHandler
Receive CometEvent notification when the response is resumed by a CometHandler or by the CometContext

Specified by:
onTerminate in interface CometHandler<Object[]>
Throws:
IOException

onInterrupt

public void onInterrupt(CometEvent event)
                 throws IOException
Description copied from interface: CometHandler
Receive CometEvent notification when the underlying tcp communication is resumed by the Grizzly ARP. This happens when the CometContext.setExpirationDelay(long) expires or when the remote client close the connection.

Specified by:
onInterrupt in interface CometHandler<Object[]>
Throws:
IOException

getChannels

public Collection<String> getChannels()

addChannel

public void addChannel(String channel)

removeChannel

public boolean removeChannel(String channel)

getClientId

public String getClientId()

setClientId

public void setClientId(String clientId)


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