*/
    Trigger[] selectTriggersForJob(Connection conn, String jobName,
        String groupName) throws SQLException, ClassNotFoundException,
        IOException;

    /**
     * <p>
     * Select the triggers for a calendar
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @param calName
     *          the name of the calendar
     * @return an array of <code>(@link org.quartz.Trigger)</code> objects
     *         associated with the given calendar.
     * @throws SQLException
     */
    Trigger[] selectTriggersForCalendar(Connection conn, String calName)
        throws SQLException, ClassNotFoundException, IOException;
    /**
     * <p>
     * Select a trigger.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @param triggerName
     *          the name of the trigger
     * @param groupName
     *          the group containing the trigger
     * @return the <code>{@link org.quartz.Trigger}</code> object
     */
    Trigger selectTrigger(Connection conn, String triggerName,
        String groupName) throws SQLException, ClassNotFoundException,
        IOException;

    /**
     * <p>
     * Select a trigger's JobDataMap.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @param triggerName
     *          the name of the trigger
     * @param groupName
     *          the group containing the trigger
     * @return the <code>{@link org.quartz.JobDataMap}</code> of the Trigger,
     * never null, but possibly empty.
     */
    JobDataMap selectTriggerJobDataMap(Connection conn, String triggerName,
        String groupName) throws SQLException, ClassNotFoundException,
        IOException;

    /**
     * <p>
     * Select a trigger' state value.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @param triggerName
     *          the name of the trigger
     * @param groupName
     *          the group containing the trigger
     * @return the <code>{@link org.quartz.Trigger}</code> object
     */
    String selectTriggerState(Connection conn, String triggerName,
        String groupName) throws SQLException;

    /**
     * <p>
     * Select a trigger' status (state & next fire time).
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @param triggerName
     *          the name of the trigger
     * @param groupName
     *          the group containing the trigger
     * @return a <code>TriggerStatus</code> object, or null
     */
    TriggerStatus selectTriggerStatus(Connection conn,
        String triggerName, String groupName) throws SQLException;

    /**
     * <p>
     * Select the total number of triggers stored.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @return the total number of triggers stored
     */
    int selectNumTriggers(Connection conn) throws SQLException;

    /**
     * <p>
     * Select all of the trigger group names that are stored.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @return an array of <code>String</code> group names
     */
    String[] selectTriggerGroups(Connection conn) throws SQLException;

    /**
     * <p>
     * Select all of the triggers contained in a given group.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @param groupName
     *          the group containing the triggers
     * @return an array of <code>String</code> trigger names
     */
    String[] selectTriggersInGroup(Connection conn, String groupName)
        throws SQLException;

    /**
     * <p>
     * Select all of the triggers in a given state.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @param state
     *          the state the triggers must be in
     * @return an array of trigger <code>Key</code> s
     */
    Key[] selectTriggersInState(Connection conn, String state)
        throws SQLException;

    int insertPausedTriggerGroup(Connection conn, String groupName)
        throws SQLException;

    int deletePausedTriggerGroup(Connection conn, String groupName)
        throws SQLException;

    int deleteAllPausedTriggerGroups(Connection conn)
        throws SQLException;

    boolean isTriggerGroupPaused(Connection conn, String groupName)
        throws SQLException;

    Set selectPausedTriggerGroups(Connection conn)
        throws SQLException;
    
    boolean isExistingTriggerGroup(Connection conn, String groupName)
        throws SQLException;

    //---------------------------------------------------------------------------
    // calendars
    //---------------------------------------------------------------------------

    /**
     * <p>
     * Insert a new calendar.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @param calendarName
     *          the name for the new calendar
     * @param calendar
     *          the calendar
     * @return the number of rows inserted
     * @throws IOException
     *           if there were problems serializing the calendar
     */
    int insertCalendar(Connection conn, String calendarName,
        Calendar calendar) throws IOException, SQLException;

    /**
     * <p>
     * Update a calendar.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @param calendarName
     *          the name for the new calendar
     * @param calendar
     *          the calendar
     * @return the number of rows updated
     * @throws IOException
     *           if there were problems serializing the calendar
     */
    int updateCalendar(Connection conn, String calendarName,
        Calendar calendar) throws IOException, SQLException;

    /**
     * <p>
     * Check whether or not a calendar exists.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @param calendarName
     *          the name of the calendar
     * @return true if the trigger exists, false otherwise
     */
    boolean calendarExists(Connection conn, String calendarName)
        throws SQLException;

    /**
     * <p>
     * Select a calendar.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @param calendarName
     *          the name of the calendar
     * @return the Calendar
     * @throws ClassNotFoundException
     *           if a class found during deserialization cannot be found be
     *           found
     * @throws IOException
     *           if there were problems deserializing the calendar
     */
    Calendar selectCalendar(Connection conn, String calendarName)
        throws ClassNotFoundException, IOException, SQLException;

    /**
     * <p>
     * Check whether or not a calendar is referenced by any triggers.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @param calendarName
     *          the name of the calendar
     * @return true if any triggers reference the calendar, false otherwise
     */
    boolean calendarIsReferenced(Connection conn, String calendarName)
        throws SQLException;

    /**
     * <p>
     * Delete a calendar.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @param calendarName
     *          the name of the trigger
     * @return the number of rows deleted
     */
    int deleteCalendar(Connection conn, String calendarName)
        throws SQLException;

    /**
     * <p>
     * Select the total number of calendars stored.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @return the total number of calendars stored
     */
    int selectNumCalendars(Connection conn) throws SQLException;

    /**
     * <p>
     * Select all of the stored calendars.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @return an array of <code>String</code> calendar names
     */
    String[] selectCalendars(Connection conn) throws SQLException;

    //---------------------------------------------------------------------------
    // trigger firing
    //---------------------------------------------------------------------------

    /**
     * <p>
     * Select the next time that a trigger will be fired.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @return the next fire time, or 0 if no trigger will be fired
     * 
     * @deprecated Does not account for misfires.
     */
    long selectNextFireTime(Connection conn) throws SQLException;

    /**
     * <p>
     * Select the trigger that will be fired at the given fire time.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @param fireTime
     *          the time that the trigger will be fired
     * @return a <code>{@link org.quartz.utils.Key}</code> representing the
     *         trigger that will be fired at the given fire time, or null if no
     *         trigger will be fired at that time
     */
    Key selectTriggerForFireTime(Connection conn, long fireTime)
        throws SQLException;

    /**
     * <p>
     * Select the next trigger which will fire to fire between the two given timestamps 
     * in ascending order of fire time, and then descending by priority.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @param noLaterThan
     *          highest value of <code>getNextFireTime()</code> of the triggers (exclusive)
     * @param noEarlierThan 
     *          highest value of <code>getNextFireTime()</code> of the triggers (inclusive)
     *          
     * @return A (never null, possibly empty) list of the identifiers (Key objects) of the next triggers to be fired.
     */
    List selectTriggerToAcquire(Connection conn, long noLaterThan, long noEarlierThan)
        throws SQLException;

    /**
     * <p>
     * Insert a fired trigger.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @param trigger
     *          the trigger
     * @param state
     *          the state that the trigger should be stored in
     * @return the number of rows inserted
     */
    int insertFiredTrigger(Connection conn, Trigger trigger,
        String state, JobDetail jobDetail) throws SQLException;

    /**
     * <p>
     * Select the states of all fired-trigger records for a given trigger, or
     * trigger group if trigger name is <code>null</code>.
     * </p>
     * 
     * @return a List of FiredTriggerRecord objects.
     */
    List selectFiredTriggerRecords(Connection conn, String triggerName,
        String groupName) throws SQLException;

    /**
     * <p>
     * Select the states of all fired-trigger records for a given job, or job
     * group if job name is <code>null</code>.
     * </p>
     * 
     * @return a List of FiredTriggerRecord objects.
     */
    List selectFiredTriggerRecordsByJob(Connection conn, String jobName,
        String groupName) throws SQLException;

    /**
     * <p>
     * Select the states of all fired-trigger records for a given scheduler
     * instance.
     * </p>
     * 
     * @return a List of FiredTriggerRecord objects.
     */
    List selectInstancesFiredTriggerRecords(Connection conn,
        String instanceName) throws SQLException;

    
    /**
     * <p>
     * Select the distinct instance names of all fired-trigger records.
     * </p>
     * 
     * <p>
     * This is useful when trying to identify orphaned fired triggers (a 
     * fired trigger without a scheduler state record.) 
     * </p>
     * 
     * @return a Set of String objects.
     */
    Set selectFiredTriggerInstanceNames(Connection conn) 
        throws SQLException;
    
    /**
     * <p>
     * Delete a fired trigger.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @param entryId
     *          the fired trigger entry to delete
     * @return the number of rows deleted
     */
    int deleteFiredTrigger(Connection conn, String entryId)
        throws SQLException;

    /**
     * <p>
     * Get the number instances of the identified job currently executing.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @return the number instances of the identified job currently executing.
     */
    int selectJobExecutionCount(Connection conn, String jobName,
        String jobGroup) throws SQLException;

    /**
     * <p>
     * Insert a scheduler-instance state record.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @return the number of inserted rows.
     */
    int insertSchedulerState(Connection conn, String instanceId,
        long checkInTime, long interval)
        throws SQLException;

    /**
     * <p>
     * Delete a scheduler-instance state record.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @return the number of deleted rows.
     */
    int deleteSchedulerState(Connection conn, String instanceId)
        throws SQLException;

    
    /**
     * <p>
     * Update a scheduler-instance state record.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     * @return the number of updated rows.
     */
    int updateSchedulerState(Connection conn, String instanceId, long checkInTime)
        throws SQLException;
    
    /**
     * <p>
     * A List of all current <code>SchedulerStateRecords</code>.
     * </p>
     * 
     * <p>
     * If instanceId is not null, then only the record for the identified
     * instance will be returned.
     * </p>
     * 
     * @param conn
     *          the DB Connection
     */
    List selectSchedulerStateRecords(Connection conn, String instanceId)
        throws SQLException;

}

// EOF