/// <summary>
/// Builds the criterion.
/// </summary>
/// <param name="fieldName">Name of the field.</param>
/// <returns></returns>
/// <exception cref="System.NotImplementedException"></exception>
protected override ICriterion BuildCriterion(string fieldName)
{
ICriterion result = null;
switch (Operand)
{
case ArithmeticOperandEnum.Equal:
result = Restrictions.Eq(fieldName, Value);
break;
case ArithmeticOperandEnum.NotEqual:
result = Restrictions.Not(Restrictions.Eq(fieldName, Value));
break;
case ArithmeticOperandEnum.Greater:
result = new SimpleExpression(fieldName, Value, " > ");
break;
case ArithmeticOperandEnum.Lower:
result = new SimpleExpression(fieldName, Value, " < ");
break;
case ArithmeticOperandEnum.GreaterOrEqual:
result = Restrictions.Ge(fieldName, Value);
break;
case ArithmeticOperandEnum.LowerOrEqual:
result = Restrictions.Le(fieldName, Value);
break;
default:
throw new NotImplementedException();
}
if (Negation)
{
result = Restrictions.Not(result);
}
return result;
}
/// <summary>
/// </summary>
/// <param name="propertyName"></param>
/// <param name="flags"></param>
/// <returns></returns>
public static BitwiseFlags IsSet(string propertyName, int flags)
{
var lhs = new SimpleExpression(propertyName, flags, " & ");
AbstractCriterion rhs = Expression.Sql("?", flags, NHibernateUtil.Int32);
return new BitwiseFlags(lhs, rhs);
}