UnexecutableOperation


1   package org.jicengine.operation;
2   
3   /**
4    *
5    * <p>
6    * Copyright (C) 2004  Timo Laitinen
7    * </p>
8    *
9    * @author Timo Laitinen
10   * @created 2004-09-20
11   * @since JICE-0.10
12   *
13   */
14  
15  public class UnexecutableOperation implements Operation {
16      String   explanation;
17  
18      public UnexecutableOperation()
19      {
20          this("execution not allowed.");
21      }
22  
23      public UnexecutableOperation(String   explanation) {
24          this.explanation = explanation;
25      }
26  
27  
28      public boolean needsParameters() {
29          return false;
30      }
31  
32      public boolean needsParameter(String   name)
33      {
34          return false;
35      }
36  
37      public Object   execute(Context context) throws OperationException
38      {
39          throw new OperationException(this.explanation);
40      }
41  }
42

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