Class HashFunction

    • Field Detail

      • NAMES

        private static final java.lang.String[] NAMES
      • function

        private final int function
    • Method Detail

      • getValue

        public Value getValue​(SessionLocal session,
                              Value v1,
                              Value v2,
                              Value v3)
        Description copied from class: FunctionN
        Returns the value of this function.
        Overrides:
        getValue in class FunctionN
        Parameters:
        session - the session
        v1 - the value of first argument, or null
        v2 - the value of second argument, or null
        v3 - the value of third argument, or null
        Returns:
        the resulting value
      • getHash

        private static Value getHash​(java.lang.String algorithm,
                                     Value value,
                                     int iterations)
      • oraHash

        private static Value oraHash​(Value value,
                                     long bucket,
                                     long seed)
      • hashImpl

        private static java.security.MessageDigest hashImpl​(Value value,
                                                            java.lang.String algorithm)
      • hashImpl

        private static java.security.MessageDigest hashImpl​(Value value,
                                                            java.security.MessageDigest md)
      • optimize

        public Expression optimize​(SessionLocal session)
        Description copied from class: Expression
        Try to optimize the expression.
        Specified by:
        optimize in class Expression
        Parameters:
        session - the session
        Returns:
        the optimized expression
      • getName

        public java.lang.String getName()
        Description copied from interface: NamedExpression
        Get the name.
        Returns:
        the name in uppercase