}
        return permission;
    }

    /**
     * Sets the prefix used to identify role-based permissions.
     *
     * @param rolePrefix the role prefix to set
     */
    public void setRolePrefix(final String rolePrefix) {
        this.rolePrefix = rolePrefix;
    }

    /**
     * Sets the prefix used to identify group-based permissions.
     *
     * @param groupPrefix the group prefix to set