001/*
002 * jPOS Project [http://jpos.org]
003 * Copyright (C) 2000-2023 jPOS Software SRL
004 *
005 * This program is free software: you can redistribute it and/or modify
006 * it under the terms of the GNU Affero General Public License as
007 * published by the Free Software Foundation, either version 3 of the
008 * License, or (at your option) any later version.
009 *
010 * This program is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
013 * GNU Affero General Public License for more details.
014 *
015 * You should have received a copy of the GNU Affero General Public License
016 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
017 */
018
019package org.jpos.iso;
020
021/**
022 * Interafce enable to get current composite field number.
023 * <p>
024 * {@link ISOMsgFieldPackager} needs a number of current (parent) composite field
025 * in order to enable nesting in its tags other composite fields (e.g.
026 * {@link org.jpos.iso.packager.GenericSubFieldPackager} or even
027 * {@link org.jpos.iso.packager.GenericTaggedFieldsPackager})
028 *
029 * @author Robert Demski <[email protected]>
030 */
031public interface ISOSubFieldPackager {
032
033    /**
034     * Get current composite field number
035     * @return composite field number
036     */
037    int getFieldNumber();
038
039}