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PropertyData xref 

1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   * http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.chemistry.opencmis.commons.data;
20  
21  import java.util.List;
22  
23  /**
24   * Base property interface.
25   */
26  public interface PropertyData<T> extends ExtensionsData {
27  
28      /**
29       * Returns the property id.
30       * 
31       * @return the property id
32       */
33      String getId();
34  
35      /**
36       * Returns the local name.
37       * 
38       * @return the local name or <code>null</code>
39       */
40      String getLocalName();
41  
42      /**
43       * Returns the display name.
44       * 
45       * @return the display name or <code>null</code>
46       */
47      String getDisplayName();
48  
49      /**
50       * Returns the query name.
51       * 
52       * @return the query name or <code>null</code>
53       */
54      String getQueryName();
55  
56      /**
57       * Returns the list of values of this property. For a single value property
58       * this is a list with one entry.
59       * 
60       * @return the list of values or (in rare cases) <code>null</code>
61       */
62      List<T> getValues();
63  
64      /**
65       * Returns the first entry of the list of values.
66       * 
67       * @return first entry of the list of values or (in rare cases)
68       *         <code>null</code>
69       */
70      T getFirstValue();
71  }