/**
     * Gets a set of all shop locations
     * @return Set of shop locations
     */
    Set <Location > getAllShopLocations ( )

    /**
     * Gets a set of all shop locations owned by the player specified
     * @param uuid Player unique identifier
     * @return Set of shop locations
     */
    Set <Location > getPlayerShopLocations (UUID uuid )

    /**
     * Gets a set of all admin shop locations
     * @return Set of admin shop locations
     */
    Set <Location > getAdminShopLocations ( )

    /**
     * Gets a set of all server shop locations
     * @return Set of server shop locations
     */
    Set <Location > getServerShopLocations ( )

    /**
     * Gets a set of all clan shop locations for the clan tag provided
     * @param tag Clan tag
     * @return Set of clan shop locations
     */
    Set <Location > getClanShopLocations ( String tag )

    /**
     * Removes all the shop locations owned by the player specified
     * @param uuid Player unique identifier
     */
    void removeAllPlayerShops (UUID uuid )

    /**
     * Gets a shop at the specified location
     * @param location Location of shop
     * @return Shop object - null if not found
     */
    Shop getShop (Location location )

    /**
     * Replaces the shop at the specified location
     * @param location Location of shop
     * @param shop Shop object
     */
    void putShop (Location location, Shop shop )