Package gnu.jel.debug

Class Debug

java.lang.Object
gnu.jel.debug.Debug
public final class Debug
extends java.lang.Object
This class used for incorporating internal checks and assertions into the code.
None of these functions does anything if Debug.enabled is false.
If you really want to throw ALL debug messages from the final, compiler generated, code -- wrap calls to Debug methods into the if statement, checking Debug.enabled constant. As shown in the example : 
 import cz.fzu.metlov.jel.*;
 ..... BLA BLA BLA ...
 if (Debug.enabled) {
  Debug.println("I want this message to disappear in the optimized version");
  Debug.check(foo==superTimeConsumingFunction(bar), 
 "I do not want to evaluate superTimeConsumingFunction(), when optimized."); 
 };

  • Field Summary

    Fields 
    Modifier and Type Field Description
    static boolean enabled
    Determines if debugging is enabled in current compilation.

  • Constructor Summary

    Constructors 
    Constructor Description
    Debug()  

  • Method Summary

    Modifier and Type Method Description
    static void check​(boolean condition)
    Checks for the condition.
    static void check​(boolean condition, java.lang.String message)
    Checks for the condition.
    static void println​(java.lang.String message)
    Prints a line of the debug output.
    static void reportThrowable​(java.lang.Throwable t)
    Reports an exception, which should not occur(i.e.
    static void reportThrowable​(java.lang.Throwable t, java.lang.String message)
    Reports an exception, which should not occur(i.e.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Field Details

  • Constructor Details

  • Method Details

    • println

      public static final void println​(java.lang.String message)
      Prints a line of the debug output. The resulting line goes to System.err and is prefixed by "[DEBUG] ".
      Parameters:
      message - message to print.

    • check

      public static final void check​(boolean condition, java.lang.String message)
      Checks for the condition. If condition is false this function prints a given message to the System.err along with the stack trace.
      Parameters:
      condition - is the condition to check.
      message - is the message to print if condition is false.

    • check

      public static final void check​(boolean condition)
      Checks for the condition. If condition is false this function prints a "Assertion failed." to the System.err along with the stack trace.
      Parameters:
      condition - is the condition to check.

    • reportThrowable

      public static final void reportThrowable​(java.lang.Throwable t, java.lang.String message)
      Reports an exception, which should not occur(i.e. handled improperly).
      Parameters:
      t - is what was thrown.
      message - is algorithm specific message.

    • reportThrowable

      public static final void reportThrowable​(java.lang.Throwable t)
      Reports an exception, which should not occur(i.e. handled improperly).
      Parameters:
      t - is what was thrown.