Package com.sun.mail.imap

Class MessageCache

java.lang.Object
com.sun.mail.imap.MessageCache
public class MessageCache extends Object
A cache of IMAPMessage objects along with the mapping from message number to IMAP sequence number. All operations on this object are protected by the messageCacheLock in IMAPFolder.

  • Method Details

    • size

      public int size()
      Size of cache.
      Returns:
      the size of the cache

    • getMessage

      public IMAPMessage getMessage(int msgnum)
      Get the message object for the indicated message number. If the message object hasn't been created, create it.
      Parameters:
      msgnum - the message number
      Returns:
      the message

    • getMessageBySeqnum

      public IMAPMessage getMessageBySeqnum(int seqnum)
      Get the message object for the indicated sequence number. If the message object hasn't been created, create it. Return null if there's no message with that sequence number.
      Parameters:
      seqnum - the sequence number of the message
      Returns:
      the message

    • expungeMessage

      public void expungeMessage(int seqnum)
      Expunge the message with the given sequence number.
      Parameters:
      seqnum - the sequence number of the message to expunge

    • removeExpungedMessages

      public IMAPMessage[] removeExpungedMessages()
      Remove all the expunged messages from the array, returning a list of removed message objects.
      Returns:
      the removed messages

    • removeExpungedMessages

      public IMAPMessage[] removeExpungedMessages(Message[] msgs)
      Remove expunged messages in msgs from the array, returning a list of removed message objects. All messages in msgs must be IMAPMessage objects from this folder.
      Parameters:
      msgs - the messages
      Returns:
      the removed messages

    • addMessages

      public void addMessages(int count, int newSeqNum)
      Add count messages to the cache. newSeqNum is the sequence number of the first message added.
      Parameters:
      count - the number of messges
      newSeqNum - sequence number of first message

    • seqnumOf

      public int seqnumOf(int msgnum)
      Return the sequence number for the given message number.
      Parameters:
      msgnum - the message number
      Returns:
      the sequence number