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1   /**
2    * This file Copyright (c) 2013 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.property;
35  
36  import info.magnolia.ui.vaadin.integration.jcr.DefaultProperty;
37  import info.magnolia.ui.vaadin.integration.jcr.JcrNodeAdapter;
38  
39  import java.util.LinkedList;
40  import java.util.List;
41  
42  import javax.inject.Inject;
43  
44  /**
45   * Multi values properties implementation of {@link MultiValueHandler}.<br>
46   * Store the list of values as Jcr Multi-property value.<br>
47   * Retrieve the Jcr Multi value property as a list.
48   * 
49   * @param <T> type of the element list.
50   */
51  public class MultiValuesHandler<T> extends AbstractMultiValueHandler<T> {
52  
53      private JcrNodeAdapter parent;
54      private String propertyName;
55  
56      @Inject
57      public MultiValuesHandler(JcrNodeAdapter parent, String propertyName) {
58          this.parent = parent;
59          this.propertyName = propertyName;
60      }
61  
62      @Override
63      public void setValue(List<T> newValue) {
64          DefaultProperty<List> property = getOrCreateProperty(List.class, new LinkedList<T>(), parent, propertyName);
65          property.setValue(new LinkedList<T>(newValue));
66      }
67  
68      @Override
69      public List<T> getValue() {
70          DefaultProperty<List> property = getOrCreateProperty(List.class, new LinkedList<T>(), parent, propertyName);
71          return property.getValue();
72      }
73  
74  }