com.sun.squawk.io.mailboxes
Interface MailboxHandler

All Known Implementing Classes:

SharedMailboxHandler

public interface MailboxHandler

deprecated Use the higher-level Channel and ServerChannel classes instead.

The MailboxHandler is responsible for creating a logical connection to the client. It may modify the MailboxAddress that the client will use for future messages, and it may create and manage custom state for that logical connection.

See Also:

Channel, ServerChannel

handleOpen

MailboxAddress handleOpen(Mailbox originalMailbox,
                          MailboxAddress originalAddress,
                          MailboxAddress replyAddress)

Called when a client looks up a MailboxAddress. A handler can decide create a new Mailbox to handle this logical connection, or simply use the current Mailbox. A handler can record other state to manage this logical connection.

Parameters:

originalMailbox - the original Mailbox connected to.

originalAddress - a new private MailboxAddress created by the system for the client to use communicate with Mailbox.

replyAddress - the address to reply to.

Returns:

a MailboxAddress that the client should continue to use for the rest of it's communication. The originalAddress is often returned, but a MailboxHandler can create a new new private Mailbox and return a MailboxAddress to this new

handleClose

AddressClosedException handleClose(MailboxAddress address)

Called after a client closes a logical connection. The handler can clean up after a logical connection, and can control if getting a close should cause any Mailbox.receive() calls on this Mailbox to throw a AddressClosedException. Typically registered "server" mail boxes should not throw an exception, but private mail boxes should.

Parameters:

address - the closed MailboxAddress.

Returns:

null, or an exception to be thrown by Mailbox.receive().