mail/pop3/DefaultFolder.java

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package com.sun.mail.pop3;

import javax.mail.*;

/**
 * The POP3 DefaultFolder.  Only contains the "INBOX" folder.
 *
 * @author Christopher Cotton
 */
public class DefaultFolder extends Folder {

    DefaultFolder(POP3Store store) {
    super(store);
    }

    public String getName() {
    return "";
    }

    public String getFullName() {
    return "";
    }

    public Folder getParent() {
    return null;
    }

    public boolean exists() {
    return true;
    }

    public Folder[] list(String pattern) throws MessagingException {
    Folder[] f = { getInbox() };
    return f;
    }

    public char getSeparator() {
    return '/';
    }

    public int getType() {
    return HOLDS_FOLDERS;
    }

    public boolean create(int type) throws MessagingException {
    return false;
    }

    public boolean hasNewMessages() throws MessagingException {
    return false;
    }

    public Folder getFolder(String name) throws MessagingException {
    if (!name.equalsIgnoreCase("INBOX")) {
        throw new MessagingException("only INBOX supported");
    } else {
        return getInbox();
    }
    }

    protected Folder getInbox() throws MessagingException {
    return getStore().getFolder("INBOX");
    }


    public boolean delete(boolean recurse) throws MessagingException {
    throw new MethodNotSupportedException("delete");
    }

    public boolean renameTo(Folder f) throws MessagingException {
    throw new MethodNotSupportedException("renameTo");
    }

    public void open(int mode) throws MessagingException {
    throw new MethodNotSupportedException("open");
    }

    public void close(boolean expunge) throws MessagingException {
    throw new MethodNotSupportedException("close");
    }

    public boolean isOpen() {
    return false;
    }

    public Flags getPermanentFlags() {
    return new Flags(); // empty flags object
    }

    public int getMessageCount() throws MessagingException {
    return 0;
    }

    public Message getMessage(int msgno) throws MessagingException {
    throw new MethodNotSupportedException("getMessage");
    }

    public void appendMessages(Message[] msgs) throws MessagingException {
    throw new MethodNotSupportedException("Append not supported");
    }

    public Message[] expunge() throws MessagingException {
    throw new MethodNotSupportedException("expunge");
    }
}