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 * to you under the Apache License, Version 2.0 (the            *
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package org.apache.james.mailbox;

import java.util.Collection;

import org.apache.james.mailbox.exception.SubscriptionException;

/**
 * Subscribes mailboxes to users. This is only needed to implement if the Mailbox should be usable via
 * IMAP. For POP3 only you don't need this at all.
 * 
 */
public interface SubscriptionManager extends RequestAware {

    /**
     * Subscribes the user in the session to the given mailbox.
     * 
     * @param session
     *            not null
     * @param mailbox
     *            not null
     * @throws SubscriptionException
     *             when subscription fails
     */
    void subscribe(MailboxSession session, String mailbox) throws SubscriptionException;

    /**
     * Finds all subscriptions for the user in the session.
     * 
     * @param session
     *            not null
     * @return not null
     * @throws SubscriptionException
     *             when subscriptions cannot be read
     */
    Collection subscriptions(MailboxSession session) throws SubscriptionException;

    /**
     * Unsubscribes the user in the session from the given mailbox.
     * 
     * @param session
     *            not null
     * @param mailbox
     *            not null
     * @throws SubscriptionException
     *             when subscriptions cannot be read
     */
    void unsubscribe(MailboxSession session, String mailbox) throws SubscriptionException;

}




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