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1   package org.apache.maven.doxia.module.twiki.parser;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *   http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  import org.apache.maven.doxia.sink.Sink;
23  
24  /**
25   * Block that represents the item in a list
26   *
27   * @author Juan F. Codagnone
28   * @version $Id: ListItemBlock.java 763762 2009-04-09 18:19:56Z ltheussl $
29   */
30  class ListItemBlock
31      extends AbstractFatherBlock
32  {
33      private final ListBlock innerList;
34  
35      /**
36       * @see #ListItemBlock(Block[], ListBlock)
37       */
38      ListItemBlock( final Block[] blocks )
39      {
40          this( blocks, null );
41      }
42  
43      /**
44       * Creates the ListItemBlock.
45       *
46       * @param blocks    text block, not null.
47       * @param innerList child list
48       */
49      ListItemBlock( final Block[] blocks, final ListBlock innerList )
50      {
51          super( blocks );
52          this.innerList = innerList;
53      }
54  
55      /** {@inheritDoc} */
56      final void before( final Sink sink )
57      {
58          sink.listItem();
59      }
60  
61      /** {@inheritDoc} */
62      final void after( final Sink sink )
63      {
64          if ( innerList != null )
65          {
66              innerList.traverse( sink );
67          }
68          sink.listItem_();
69      }
70  
71      /**
72       * Returns the innerList.
73       *
74       * @return <code>UnorderedListBlock</code> with the innerList.
75       */
76      final ListBlock getInnerList()
77      {
78          return innerList;
79      }
80  
81      /** {@inheritDoc} */
82      public final boolean equals( final Object obj )
83      {
84          boolean ret = false;
85  
86          if ( obj == this )
87          {
88              ret = true;
89          }
90          else if ( obj == null || this == null )
91          {
92              ret = false;
93          }
94          else if ( obj instanceof ListItemBlock )
95          {
96              final ListItemBlock li = (ListItemBlock) obj;
97              if ( this.innerList == null && li.innerList == null )
98              {
99                  ret = super.equals( li );
100             }
101             else if ( this.innerList == null && li.innerList != null )
102             {
103                 ret = false;
104             }
105             else
106             {
107                 ret = this.innerList.equals( li.innerList ) && super.equals( li );
108             }
109         }
110 
111         return ret;
112     }
113 
114     /** {@inheritDoc} */
115     public final int hashCode()
116     {
117         final int magic1 = 17;
118         final int magic2 = 37;
119 
120         return magic1 + magic2 * super.hashCode() + ( innerList == null ? 0 : magic2 * innerList.hashCode() );
121     }
122 }