DetailedSemanticException


1   // $Id: DetailedSemanticException.java,v 1.5 2005/02/12 20:27:50 pgmjsd Exp $
2   package org.hibernate.hql.ast;
3   
4   import antlr.SemanticException;
5   
6   import java.io.PrintStream  ;
7   import java.io.PrintWriter  ;
8   
9   /**
10   * Thrown when a call to the underlying Hibernate engine fails, indicating
11   * some form of semantic exception (e.g. a class name was not found in the
12   * current mappings, etc.).
13   */
14  public class DetailedSemanticException extends SemanticException {
15      private Throwable   cause;
16      private boolean showCauseMessage = true;
17  
18      public DetailedSemanticException(String   message) {
19          super( message );
20      }
21  
22      public DetailedSemanticException(String   s, Throwable   e) {
23          super( s );
24          cause = e;
25      }
26  
27      /**
28       * Converts everything to a string.
29       *
30       * @return a string.
31       */
32      public String   toString() {
33          if ( cause == null || ( !showCauseMessage ) ) {
34              return super.toString();
35          }
36          else {
37              return super.toString() + "\n[cause=" + cause.toString() + "]";
38          }
39      }
40  
41      /**
42       * Prints a stack trace.
43       */
44      public void printStackTrace() {
45          super.printStackTrace();
46          if ( cause != null ) {
47              cause.printStackTrace();
48          }
49      }
50  
51      /**
52       * Prints a stack trace to the specified print stream.
53       *
54       * @param s the print stream.
55       */
56      public void printStackTrace(PrintStream   s) {
57          super.printStackTrace( s );
58          if ( cause != null ) {
59              s.println( "Cause:" );
60              cause.printStackTrace( s );
61          }
62      }
63  
64      /**
65       * Prints this throwable and its backtrace to the specified print writer.
66       *
67       * @param w the print writer.s
68       */
69      public void printStackTrace(PrintWriter   w) {
70          super.printStackTrace( w );
71          if ( cause != null ) {
72              w.println( "Cause:" );
73              cause.printStackTrace( w );
74          }
75      }
76  
77  }
78
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