ticketregistry.java

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/*
 * Copyright 2007 The JA-SIG Collaborative. All rights reserved. See license
 * distributed with this file and available online at
 * http://www.ja-sig.org/products/cas/overview/license/
 */

package org.jasig.cas.ticket.registry;

import java.util.Collection;

import org.jasig.cas.ticket.Ticket;

/**
 * Interface for a registry that stores tickets. The underlying registry can be
 * backed by anything from a normal HashMap to JGroups for having distributed
 * registries. It is up to specific implementations to determine their clean up
 * strategy. Strategies can include a manual clean up by a RegistryCleaner or a
 * more sophisticated strategy such as LRU.
 * 
 * @author Scott Battaglia
 * @version $Revision: 42053 $ $Date: 2007-06-10 09:17:55 -0400 (Sun, 10 Jun 2007) $
 * @since 3.0
 * <p>
 * This is a published and supported CAS Server 3 API.
 * </p>
 */
public interface TicketRegistry {

    /**
     * Add a ticket to the registry. Ticket storage is based on the ticket id.
     * 
     * @param ticket The ticket we wish to add to the cache.
     */
    void addTicket(Ticket ticket);

    /**
     * Retrieve a ticket from the registry. If the ticket retrieved does not
     * match the expected class, an InvalidTicketException is thrown.
     * 
     * @param ticketId the id of the ticket we wish to retrieve.
     * @param clazz The expected class of the ticket we wish to retrieve.
     * @return the requested ticket.
     * @throws InvalidTicketClassException if the ticket does not match the
     * class provided.
     */
    Ticket getTicket(String ticketId, Class<? extends Ticket> clazz);

    /**
     * Retrieve a ticket from the registry.
     * 
     * @param ticketId the id of the ticket we wish to retrieve
     * @return the requested ticket.
     */
    Ticket getTicket(String ticketId);

    /**
     * Remove a specific ticket from the registry.
     * 
     * @param ticketId The id of the ticket to delete.
     * @return true if the ticket was removed and false if the ticket did not
     * exist.
     */
    boolean deleteTicket(String ticketId);

    /**
     * Retrieve all tickets from the registry.
     * 
     * @return collection of tickets currently stored in the registry. Tickets
     * might or might not be valid i.e. expired.
     */
    Collection<Ticket> getTickets();
}