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1   /* This file is part of COPAL (COntext Provisioning for All).
2    *
3    * COPAL is a part of SM4All (Smart hoMes for All) project.
4    *
5    * COPAL is free software: you can redistribute it and/or modify
6    * it under the terms of the GNU Lesser General Public License as published by
7    * the Free Software Foundation, either version 3 of the License, or
8    * (at your option) any later version.
9    *
10   * COPAL is distributed in the hope that it will be useful,
11   * but WITHOUT ANY WARRANTY; without even the implied warranty of
12   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   * GNU Lesser General Public License for more details.
14   *
15   * You should have received a copy of the GNU Lesser General Public License
16   * along with COPAL. If not, see <http://www.gnu.org/licenses/>.
17   */
18  package at.ac.tuwien.infosys.sm4all.copal.api.service;
19  
20  import java.text.MessageFormat;
21  import at.ac.tuwien.infosys.sm4all.copal.api.ContextException;
22  import at.ac.tuwien.infosys.sm4all.copal.api.query.ContextQuery;
23  
24  /**
25   * Exception when another {@link ContextQuery} is created with same name and
26   * different event name or criteria then the previously created
27   * {@link ContextQuery}.
28   * 
29   * @author sanjin
30   */
31  public class RedefinitionOfQueryException extends ContextException {
32  
33      private static final long serialVersionUID = 8739664669864082810L;
34  
35      private final ContextQuery query;
36  
37      /**
38       * Create exception when another {@link ContextQuery} is created with same
39       * name and different event name or criteria then specified already-created
40       * {@link ContextQuery}.
41       * 
42       * @param query the {@link ContextQuery} (which is saved for later retrieval
43       *        by the {@link #getQuery()} method).
44       */
45      public RedefinitionOfQueryException(final ContextQuery query) {
46          super(MessageFormat.format("Query ''{0}'' is being redefined.",
47                  query.getName()));
48  
49          this.query = query;
50      }
51  
52      /**
53       * Returns the {@link ContextQuery} which is tried to be redefined.
54       * 
55       * @return the {@link ContextQuery} which is tried to be redefined.
56       */
57      public ContextQuery getQuery() {
58          return this.query;
59      }
60  }