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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.client.api;
20  
21  import java.util.List;
22  
23  import org.apache.chemistry.opencmis.commons.definitions.TypeDefinition;
24  
25  /**
26   * Object Type.
27   * 
28   * @cmis 1.0
29   */
30  public interface ObjectType extends TypeDefinition {
31  
32      /**
33       * Indicates whether this is base object type or not.
34       * 
35       * @return {@code true} if this type is a base type, {@code false} if this
36       *         type is a derived type
37       * 
38       * @cmis 1.0
39       */
40      boolean isBaseType();
41  
42      /**
43       * Gets the types base type, if the type is a derived (non-base) type.
44       * 
45       * @return the base type this type is derived from, or {@code null} if it is
46       *         a base type
47       * 
48       * @cmis 1.0
49       */
50      ObjectType getBaseType();
51  
52      /**
53       * Gets the types parent type, if the type is a derived (non-base) type.
54       * 
55       * @return the parent type from which this type is derived, or {@code null}
56       *         if it is a base type
57       * 
58       * @cmis 1.0
59       */
60      ObjectType getParentType();
61  
62      /**
63       * Gets the list of types directly derived from this type (which will return
64       * this type on {@code getParent()}).
65       * 
66       * @return list of types which are directly derived from this type
67       * 
68       * @cmis 1.0
69       */
70      ItemIterable<ObjectType> getChildren();
71  
72      /**
73       * Gets the list of all types somehow derived from this type.
74       * 
75       * @param depth
76       *            the tree depth, must be greater than 0 or -1 for infinite
77       *            depth
78       * 
79       * @return a list of trees of types which are derived from this type (direct
80       *         and via their parents)
81       * 
82       * @cmis 1.0
83       */
84      List<Tree<ObjectType>> getDescendants(int depth);
85  
86  }