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1   /**
2    * This file Copyright (c) 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.contentapp;
35  
36  import com.vaadin.data.provider.HierarchicalDataProvider;
37  import com.vaadin.data.provider.Query;
38  
39  /**
40   * Filterable wrapper for a data provider of the specified type.
41   * @param <T> item type.
42   */
43  public class FilterableHierarchicalDataProvider<T> extends HierarchicalDataProviderWrapper<T, DataFilter> {
44  
45      public static <T> FilterableHierarchicalDataProvider<T> wrap(HierarchicalDataProvider<T, DataFilter> src) {
46          return new FilterableHierarchicalDataProvider<>(src);
47      }
48  
49      private DataFilter dataFilter;
50  
51      protected FilterableHierarchicalDataProvider(HierarchicalDataProvider<T, DataFilter> dataProvider) {
52          super(dataProvider);
53      }
54  
55      @Override
56      protected DataFilter getFilter(Query<T, DataFilter> query) {
57          return this.dataFilter;
58      }
59  
60      public void setDataFilter(DataFilter dataFilter) {
61          this.dataFilter = dataFilter;
62          refreshAll();
63      }
64  }