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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   */
20  package org.apache.directory.mavibot.btree.managed;
21  
22  
23  import java.util.List;
24  
25  import org.apache.directory.mavibot.btree.AbstractDeleteResult;
26  import org.apache.directory.mavibot.btree.Page;
27  import org.apache.directory.mavibot.btree.Tuple;
28  
29  
30  /**
31   * The result of a delete operation, when the child has not been merged. It contains the
32   * reference to the modified page, and the removed element.
33   * 
34   * @param <K> The type for the Key
35   * @param <V> The type for the stored value
36   *
37   * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
38   */
39  /* No qualifier */class MergedWithSiblingResult<K, V> extends AbstractDeleteResult<K, V>
40  {
41      /**
42       * The default constructor for RemoveResult.
43       * 
44       * @param modifiedPage The modified page
45       * @param removedElement The removed element (can be null if the key wasn't present in the tree)
46       */
47      /* No qualifier */MergedWithSiblingResult( Page<K, V> modifiedPage, Tuple<K, V> removedElement )
48      {
49          super( modifiedPage, removedElement );
50      }
51  
52  
53      /**
54       * A constructor for RemoveResult which takes a list of copied page.
55       * 
56       * @param copiedPages the list of copied pages
57       * @param modifiedPage The modified page
58       * @param removedElement The removed element (can be null if the key wasn't present in the tree)
59       */
60      /* No qualifier */MergedWithSiblingResult( List<Page<K, V>> copiedPages, Page<K, V> modifiedPage,
61          Tuple<K, V> removedElement )
62      {
63          super( copiedPages, modifiedPage, removedElement );
64      }
65  
66  
67      /**
68       * @see Object#toString()
69       */
70      public String toString()
71      {
72          StringBuilder sb = new StringBuilder();
73  
74          sb.append( "MergedWithSiblingResult" );
75          sb.append( "\n    removed element : " ).append( getRemovedElement() );
76          sb.append( "\n    modifiedPage : " ).append( getModifiedPage() );
77  
78          return sb.toString();
79      }
80  }