MessageCountEvent (Java 2 Platform Ent. Ed. v1.4) - Java Platform, Enterprise Edition v1.4 API Specifications

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Java^TM 2 Platform
Ent. Ed. v1.4

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javax.mail.event
Class MessageCountEvent

java.lang.Object
  java.util.EventObject
      javax.mail.event.MailEvent
          javax.mail.event.MessageCountEvent

All Implemented Interfaces:: Serializable

public class MessageCountEvent
extends MailEvent

This class notifies changes in the number of messages in a folder.

Note that some folder types may only deliver MessageCountEvents at certain times or after certain operations. IMAP in particular will only notify the client of MessageCountEvents when a client issues a new command. Refer to RFC 2060 http://www.ietf.org/rfc/rfc2060.txt for details. A client may want "poll" the folder by occasionally calling the getMessageCount or isConnected methods to solicit any such notifications.

Author:: John Mani
See Also:: Serialized Form

Field Summary

static int ADDED
          The messages were added to their folder

protected Message[] msgs
          The messages.

protected boolean removed
          If true, this event is the result of an explicit expunge by this client, and the messages in this folder have been renumbered to account for this.

static int REMOVED
          The messages were removed from their folder

protected int type
          The event type.

Fields inherited from class java.util.EventObject

source

Constructor Summary

MessageCountEvent(Folder folder, int type, boolean removed, Message[] msgs)
          Constructor.

Method Summary

void dispatch(Object listener)
          Invokes the appropriate MessageCountListener method.

Message[] getMessages()
          Return the array of messages added or removed.

int getType()
          Return the type of this event.

boolean isRemoved()
          Indicates whether this event is the result of an explicit expunge by this client, or due to an expunge from external sources.

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Field Detail

ADDED

public static final int ADDED

The messages were added to their folder

See Also:: Constant Field Values

REMOVED

public static final int REMOVED

The messages were removed from their folder

See Also:: Constant Field Values

type

protected int type

The event type.

removed

protected boolean removed

If true, this event is the result of an explicit expunge by this client, and the messages in this folder have been renumbered to account for this. If false, this event is the result of an expunge by external sources.

msgs

protected transient Message[] msgs

The messages.

Constructor Detail