private static bool IsPredicateArrayCorrect(byte[] left, byte[] right, SqlComparisonBooleanExpressionType comparisonOperator)
{
if (comparisonOperator != SqlComparisonBooleanExpressionType.Equals && comparisonOperator != SqlComparisonBooleanExpressionType.NotEqual)
{
throw new NotImplementedException( );
}
var equals = left.SequenceEqual(right);
return(comparisonOperator == SqlComparisonBooleanExpressionType.Equals && equals);
}
public static bool IsPredicateCorrect(object left, object right, SqlComparisonBooleanExpressionType comparisonOperator)
{
if (left == null && right == null)
{
return(true);
}
if (left == null || right == null)
{
return(false);
}
if (left.GetType( ) == typeof(byte[]) && right.GetType( ) == typeof(byte[]))
{
return(IsPredicateArrayCorrect((byte[])left, (byte[])right, comparisonOperator));
}
if (left is IComparable == false || right is IComparable == false)
{
return(false);
}
var comparison = (( IComparable )left).CompareTo(( IComparable )right);
switch (comparisonOperator)
{
case SqlComparisonBooleanExpressionType.Equals: return(comparison == 0);
case SqlComparisonBooleanExpressionType.LessThan: return(comparison < 0);
case SqlComparisonBooleanExpressionType.ValueEqual: return(comparison == 0);
case SqlComparisonBooleanExpressionType.NotEqual: return(comparison != 0);
case SqlComparisonBooleanExpressionType.GreaterThan: return(comparison > 0);
case SqlComparisonBooleanExpressionType.GreaterThanOrEqual: return(comparison >= 0);
case SqlComparisonBooleanExpressionType.LessOrGreaterThan: return(comparison != 0);
case SqlComparisonBooleanExpressionType.LessThanOrEqual: return(comparison <= 0);
case SqlComparisonBooleanExpressionType.NotLessThan: return(comparison >= 0);
case SqlComparisonBooleanExpressionType.NotGreaterThan: return(comparison <= 0);
default:
throw new NotImplementedException();
}
}
