private void ValidateMathematicalFunctionExpression(DbMathematicalFunctionExpression mathematicalFunctionExpression, DbMathematicalFunctionExpressionType mathematicalFunctionExpressionType)
{
Assert.IsTrue(mathematicalFunctionExpression.ExpressionType == DbExpressionType.Function);
Assert.IsTrue(mathematicalFunctionExpression.MathematicalFunctionExpressionType == mathematicalFunctionExpressionType);
Assert.IsNotNull(mathematicalFunctionExpression.Arguments);
}
/// <summary>
/// Initializes a new instance of the <see cref="DbMathematicalFunctionExpression"/> class.
/// </summary>
/// <param name="mathematicalFunctionExpressionType">The <see cref="DbMathematicalFunctionExpressionType"/> of the <see cref="DbMathematicalFunctionExpression"/>.</param>
/// <param name="arguments">The arguments used when calling the function.</param>
internal DbMathematicalFunctionExpression(DbMathematicalFunctionExpressionType mathematicalFunctionExpressionType, DbExpression[] arguments)
: base(DbFunctionExpressionType.Mathematical, arguments)
{
MathematicalFunctionExpressionType = mathematicalFunctionExpressionType;
}
/// <summary>
/// Returns the name of the function as it is defined in the target DBMS.
/// </summary>
/// <param name="mathematicalFunctionExpressionType">The <see cref="DbMathematicalFunctionExpressionType"/> that specifies the function name to return.</param>
/// <returns><see cref="string"/></returns>
protected virtual string GetMathematicalFunctionBody(DbMathematicalFunctionExpressionType mathematicalFunctionExpressionType)
{
switch (mathematicalFunctionExpressionType)
{
case DbMathematicalFunctionExpressionType.Abs:
return("ABS({0})");
case DbMathematicalFunctionExpressionType.Acos:
return("ACOS({0})");
case DbMathematicalFunctionExpressionType.Asin:
return("ASIN({0})");
case DbMathematicalFunctionExpressionType.Atan:
return("ATAN({0})");
case DbMathematicalFunctionExpressionType.Atan2:
return("ATAN2({0})");
case DbMathematicalFunctionExpressionType.Ceiling:
return("CEILING({0})");
case DbMathematicalFunctionExpressionType.Cos:
return("COS({0})");
case DbMathematicalFunctionExpressionType.Cot:
return("COT({0})");
case DbMathematicalFunctionExpressionType.Degrees:
return("DEGREES({0})");
case DbMathematicalFunctionExpressionType.Exp:
return("EXP({0})");
case DbMathematicalFunctionExpressionType.Floor:
return("FLOOR({0})");
case DbMathematicalFunctionExpressionType.Log:
return("LOG({0})");
case DbMathematicalFunctionExpressionType.Log10:
return("LOG10({0})");
case DbMathematicalFunctionExpressionType.PI:
return("PI()");
case DbMathematicalFunctionExpressionType.Power:
return("POWER({0})");
case DbMathematicalFunctionExpressionType.Radians:
return("RADIANS({0})");
case DbMathematicalFunctionExpressionType.Rand:
return("RAND()");
case DbMathematicalFunctionExpressionType.RandSeed:
return("RAND({0})");
case DbMathematicalFunctionExpressionType.Round:
return("ROUND({0})");
case DbMathematicalFunctionExpressionType.Sign:
return("SIGN({0})");
case DbMathematicalFunctionExpressionType.Sin:
return("SIN({0})");
case DbMathematicalFunctionExpressionType.Sqrt:
return("SQRT({0})");
case DbMathematicalFunctionExpressionType.Square:
return("SQUARE({0})");
case DbMathematicalFunctionExpressionType.Tan:
return("TAN({0})");
default:
throw new ArgumentOutOfRangeException("mathematicalFunctionExpressionType", mathematicalFunctionExpressionType, " is not supported");
}
}
private void ValidateMathematicalFunctionExpression(DbMathematicalFunctionExpression mathematicalFunctionExpression, DbMathematicalFunctionExpressionType mathematicalFunctionExpressionType)
{
Assert.IsTrue(mathematicalFunctionExpression.ExpressionType == DbExpressionType.Function);
Assert.IsTrue(mathematicalFunctionExpression.MathematicalFunctionExpressionType == mathematicalFunctionExpressionType);
Assert.IsNotNull(mathematicalFunctionExpression.Arguments);
}
/// <summary>
/// Returns the name of the function as it is defined in the target DBMS.
/// </summary>
/// <param name="mathematicalFunctionExpressionType">The <see cref="DbMathematicalFunctionExpressionType"/> that specifies the function name to return.</param>
/// <returns><see cref="string"/></returns>
protected virtual string GetMathematicalFunctionBody(DbMathematicalFunctionExpressionType mathematicalFunctionExpressionType)
{
switch (mathematicalFunctionExpressionType)
{
case DbMathematicalFunctionExpressionType.Abs:
return "ABS({0})";
case DbMathematicalFunctionExpressionType.Acos:
return "ACOS({0})";
case DbMathematicalFunctionExpressionType.Asin:
return "ASIN({0})";
case DbMathematicalFunctionExpressionType.Atan:
return "ATAN({0})";
case DbMathematicalFunctionExpressionType.Atan2:
return "ATAN2({0})";
case DbMathematicalFunctionExpressionType.Ceiling:
return "CEIL({0})";
case DbMathematicalFunctionExpressionType.Cos:
return "COS({0})";
case DbMathematicalFunctionExpressionType.Cot:
return "COSH({0})";
case DbMathematicalFunctionExpressionType.Degrees:
return "DEGREES({0})";
case DbMathematicalFunctionExpressionType.Exp:
return "EXP({0})";
case DbMathematicalFunctionExpressionType.Floor:
return "FLOOR({0})";
case DbMathematicalFunctionExpressionType.Log:
return "LOG({0})";
case DbMathematicalFunctionExpressionType.Log10:
return "LOG(10,{0})";
case DbMathematicalFunctionExpressionType.PI:
return "ACOS(-1)";
case DbMathematicalFunctionExpressionType.Power:
return "POWER({0})";
case DbMathematicalFunctionExpressionType.Radians:
return "RADIANS({0})";
case DbMathematicalFunctionExpressionType.Rand:
return "dbms_random.value";
case DbMathematicalFunctionExpressionType.RandSeed:
return "RAND({0})";
case DbMathematicalFunctionExpressionType.Round:
return "ROUND({0})";
case DbMathematicalFunctionExpressionType.Sign:
return "SIGN({0})";
case DbMathematicalFunctionExpressionType.Sin:
return "SIN({0})";
case DbMathematicalFunctionExpressionType.Sqrt:
return "SQRT({0})";
case DbMathematicalFunctionExpressionType.Tan:
return "TAN({0})";
default:
throw new ArgumentOutOfRangeException("mathematicalFunctionExpressionType", mathematicalFunctionExpressionType, " is not supported");
}
}
/// <summary>
/// Creates a new <see cref="DbDateTimeFunctionExpression"/>.
/// </summary>
/// <param name="mathematicalFunctionExpressionType">The <see cref="DbMathematicalFunctionExpressionType"/> that specifies the type of <see cref="DbMathematicalFunctionExpression"/> to create.</param>
/// <param name="arguments">A list of <see cref="DbExpression"/> instances that is used as arguments when calling the function.</param>
/// <returns>A <see cref="DbMathematicalFunctionExpression"/> instance.</returns>
public DbMathematicalFunctionExpression MakeMathematicalFunction(DbMathematicalFunctionExpressionType mathematicalFunctionExpressionType, DbExpression[] arguments)
{
var mathematicalFunctionExpression = new DbMathematicalFunctionExpression(mathematicalFunctionExpressionType, arguments);
return mathematicalFunctionExpression;
}
/// <summary>
/// Initializes a new instance of the <see cref="DbMathematicalFunctionExpression"/> class.
/// </summary>
/// <param name="mathematicalFunctionExpressionType">The <see cref="DbMathematicalFunctionExpressionType"/> of the <see cref="DbMathematicalFunctionExpression"/>.</param>
/// <param name="arguments">The arguments used when calling the function.</param>
internal DbMathematicalFunctionExpression(DbMathematicalFunctionExpressionType mathematicalFunctionExpressionType, DbExpression[] arguments)
: base(DbFunctionExpressionType.Mathematical, arguments)
{
MathematicalFunctionExpressionType = mathematicalFunctionExpressionType;
}