1 /**
2 * This file Copyright (c) 2014-2018 Magnolia International
3 * Ltd. (http://www.magnolia-cms.com). All rights reserved.
4 *
5 *
6 * This file is dual-licensed under both the Magnolia
7 * Network Agreement and the GNU General Public License.
8 * You may elect to use one or the other of these licenses.
9 *
10 * This file is distributed in the hope that it will be
11 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
12 * implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
14 * Redistribution, except as permitted by whichever of the GPL
15 * or MNA you select, is prohibited.
16 *
17 * 1. For the GPL license (GPL), you can redistribute and/or
18 * modify this file under the terms of the GNU General
19 * Public License, Version 3, as published by the Free Software
20 * Foundation. You should have received a copy of the GNU
21 * General Public License, Version 3 along with this program;
22 * if not, write to the Free Software Foundation, Inc., 51
23 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
24 *
25 * 2. For the Magnolia Network Agreement (MNA), this file
26 * and the accompanying materials are made available under the
27 * terms of the MNA which accompanies this distribution, and
28 * is available at http://www.magnolia-cms.com/mna.html
29 *
30 * Any modifications to this file must keep this entire header
31 * intact.
32 *
33 */
34 package info.magnolia.ui.form.field.transformer.multi;
35
36 import info.magnolia.ui.form.field.transformer.Transformer;
37
38 import com.vaadin.v7.data.Property;
39 import com.vaadin.v7.data.util.PropertysetItem;
40
41 /**
42 * Defines a {@link Transformer} that supports properties with multiple values.
43 * In particular it is capable of creating new — or removing existing {@link Property Properties} on the related form item.
44 *
45 * @see {@link info.magnolia.ui.form.field.MultiField MultiField};
46 */
47 public interface MultiTransformer extends Transformer<PropertysetItem> {
48
49 /**
50 * Creates and returns a new property associated to the root item.
51 */
52 public Property<?> createProperty();
53
54 /**
55 * Removes a property from the root item.
56 *
57 * @param id the property identifier as specified by the concrete {@link Transformer} implementation
58 */
59 public void removeProperty(Object id);
60 }