View Javadoc

1   package org.apache.commons.ognl;
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  /**
23   * Exception thrown if a property is attempted to be extracted from an object that does not have such a property.
24   * 
25   * @author Luke Blanshard (blanshlu@netscape.net)
26   * @author Drew Davidson (drew@ognl.org)
27   */
28  public class NoSuchPropertyException
29      extends OgnlException
30  {
31  
32      private static final long serialVersionUID = 2228428181127177178L;
33  
34      private Object target;
35  
36      private Object name;
37  
38      public NoSuchPropertyException( Object target, Object name )
39      {
40          super( getReason( target, name ) );
41      }
42  
43      public NoSuchPropertyException( Object target, Object name, Throwable reason )
44      {
45          super( getReason( target, name ), reason );
46          this.target = target;
47          this.name = name;
48      }
49  
50      static String getReason( Object target, Object name )
51      {
52          StringBuilder ret = new StringBuilder();
53  
54          if ( target == null )
55          {
56              ret.append( "null" );
57          }
58          else if ( target instanceof Class )
59          {
60              ret.append( ( (Class<?>) target ).getName() );
61          }
62          else
63          {
64              ret.append( target.getClass().getName() );
65          }
66  
67          ret.append( "." ).append( name );
68  
69          return ret.toString();
70      }
71  
72      public Object getTarget()
73      {
74          return target;
75      }
76  
77      public Object getName()
78      {
79          return name;
80      }
81  }