EnumConstantNotPresentException


1   /*
2    * @(#)EnumConstantNotPresentException.java 1.1 04/02/03
3    *
4    * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
5    * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
6    */
7   
8   package java.lang;
9   
10  /**
11   * Thrown when an application tries to access an enum constant by name
12   * and the enum type contains no constant with the specified name.
13   *
14   * @author  Josh Bloch
15   * @since   1.5
16   */
17  public class EnumConstantNotPresentException extends RuntimeException   {
18      /**
19       * The type of the missing enum constant.
20       */
21      private Class  <? extends Enum  > enumType;
22  
23      /**
24       * The name of the missing enum constant.
25       */
26      private String   constantName;
27  
28      /**
29       * Constructs an <tt>EnumConstantNotPresentException</tt> for the 
30       * specified constant.
31       *
32       * @param enumType the type of the missing enum constant
33       * @param constantName the name of the missing enum constant
34       */
35      public EnumConstantNotPresentException(Class  <? extends Enum  > enumType,
36                                             String   constantName) {
37          super(enumType.getName() + "." + constantName);
38      this.enumType = enumType;
39      this.constantName  = constantName;
40      }
41  
42      /**
43       * Returns the type of the missing enum constant.
44       *
45       * @return the type of the missing enum constant
46       */
47      public Class  <? extends Enum  > enumType() { return enumType; }
48  
49      /**
50       * Returns the name of the missing enum constant.
51       *
52       * @return the name of the missing enum constant
53       */
54      public String   constantName() { return constantName; }
55  }
56
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