Defines the properties of a specific SQL Type and handles the values compatible. More...

Inheritance diagram for Deveel.Data.Types.SqlType:

Public Member Functions
virtual bool	IsComparable (SqlType type)
	Verifies if a given SqlType is comparable to this data-type. More...

virtual bool	CanCastTo (SqlType destType)
	Verifies if this type can cast any value to the given SqlType. More...

virtual DataObject	CastTo (DataObject value, SqlType destType)
	Converts the given object value to a SqlType specified. More...

virtual object	ConvertTo (ISqlObject obj, Type destType)

virtual ISqlObject	Add (ISqlObject a, ISqlObject b)

virtual ISqlObject	Subtract (ISqlObject a, ISqlObject b)

virtual ISqlObject	Multiply (ISqlObject a, ISqlObject b)

virtual ISqlObject	Divide (ISqlObject a, ISqlObject b)

virtual ISqlObject	Modulus (ISqlObject a, ISqlObject b)

virtual ISqlObject	Negate (ISqlObject value)

virtual SqlBoolean	IsEqualTo (ISqlObject a, ISqlObject b)

virtual SqlBoolean	IsNotEqualTo (ISqlObject a, ISqlObject b)

virtual SqlBoolean	IsGreatherThan (ISqlObject a, ISqlObject b)

virtual SqlBoolean	IsSmallerThan (ISqlObject a, ISqlObject b)

virtual SqlBoolean	IsGreaterOrEqualThan (ISqlObject a, ISqlObject b)

virtual SqlBoolean	IsSmallerOrEqualThan (ISqlObject a, ISqlObject b)

virtual ISqlObject	And (ISqlObject a, ISqlObject b)

virtual ISqlObject	Or (ISqlObject a, ISqlObject b)

virtual ISqlObject	XOr (ISqlObject x, ISqlObject y)

virtual ISqlObject	UnaryPlus (ISqlObject value)

virtual ISqlObject	Reverse (ISqlObject value)

virtual SqlType	Wider (SqlType otherType)
	Gets the one data-type between this and the other one given that handles the wider range of values. More...

virtual int	Compare (ISqlObject x, ISqlObject y)

override bool	Equals (object obj)

override int	GetHashCode ()

virtual bool	Equals (SqlType other)

override string	ToString ()

virtual void	SerializeObject (Stream stream, ISqlObject obj)

virtual ISqlObject	DeserializeObject (Stream stream)

virtual bool	IsCacheable (ISqlObject value)

virtual Type	GetRuntimeType ()

virtual Type	GetObjectType ()

virtual ISqlObject	CreateFromLargeObject (ILargeObject objRef)

virtual ISqlObject	CreateFrom (object value)

Static Public Member Functions
static SqlType	Parse (string s)
	Parses a SQL formatted string that defines a data-type into a constructed SqlType object equivalent. More...

static SqlType	Parse (IContext context, string s)
	Parses a SQL formatted string that defines a data-type into a constructed SqlType object equivalent. More...

static bool	IsPrimitiveType (SqlTypeCode typeCode)

static SqlType	Resolve (SqlTypeCode typeCode)

static SqlType	Resolve (SqlTypeCode typeCode, DataTypeMeta[] meta)

static SqlType	Resolve (SqlTypeCode typeCode, DataTypeMeta[] meta, ITypeResolver resolver)

static SqlType	Resolve (SqlTypeCode typeCode, string name)

static SqlType	Resolve (SqlTypeCode typeCode, string name, DataTypeMeta[] meta)

static SqlType	Resolve (string name)

static SqlType	Resolve (string name, DataTypeMeta[] meta)

static SqlType	Resolve (string name, DataTypeMeta[] meta, ITypeResolver resolver)

static SqlType	Resolve (SqlTypeCode typeCode, string name, DataTypeMeta[] meta, ITypeResolver resolver)

Protected Member Functions
	SqlType (SqlTypeCode sqlType)
	Constructs the SqlType for the given specific SQL TYPE. More...

	SqlType (string name, SqlTypeCode typeCode)
	Constructs the SqlType for the given specific SQL TYPE and a given name. More...

	SqlType (ObjectData data)

virtual void	GetData (SerializeData data)

Package Functions
virtual int	GetCacheUsage (ISqlObject value)

virtual int	ColumnSizeOf (ISqlObject obj)

Properties
string	Name `[get, private set]`
	Gets the name of the data-type that is used to resolve it within the context. More...

SqlTypeCode	TypeCode `[get, private set]`
	Gets the kind of SQL type this data-type handles. More...

virtual bool	IsIndexable `[get]`
	Indicates if the values handled by the type can be part of an index. More...

bool	IsPrimitive `[get]`
	Gets a value indicating if this data-type is primitive. More...

bool	IsNull `[get]`

virtual bool	IsStorable `[get]`

Private Member Functions
void ISerializable.	GetData (SerializeData data)

Static Private Member Functions
static SqlTypeCode	ResolveTypeCode (string name)

Detailed Description

Defines the properties of a specific SQL Type and handles the values compatible.

Definition at line 33 of file SqlType.cs.

Constructor & Destructor Documentation

Deveel.Data.Types.SqlType.SqlType ( SqlTypeCode sqlType )

inlineprotected

Constructs the SqlType for the given specific SQL TYPE.

This constructor will set the Name value to the equivalent of the SQL Type specified.

Parameters

sqlType The code of the SQL Type this object will represent.

Definition at line 43 of file SqlType.cs.

44 : this(sqlType.ToString().ToUpperInvariant(), sqlType) {

45 }

Deveel.Data.Types.SqlType.SqlType	(	string	name,
		SqlTypeCode	typeCode
	)

inlineprotected

Constructs the SqlType for the given specific SQL TYPE and a given name.

Parameters

name
typeCode

Definition at line 53 of file SqlType.cs.

                                                              {
             TypeCode = typeCode;
             Name = name;
         }

Deveel.Data.Types.SqlType.SqlType ( ObjectData data )

inlineprotected

Definition at line 58 of file SqlType.cs.

                                            {
             Name = data.GetString("Name");
             TypeCode = (SqlTypeCode) data.GetInt32("TypeCode");
         }

Member Function Documentation

virtual ISqlObject Deveel.Data.Types.SqlType.Add	(	ISqlObject	a,
		ISqlObject	b
	)

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType, and Deveel.Data.Types.StringType.

Definition at line 192 of file SqlType.cs.

                                                                   {
             return SqlNull.Value;
         }

virtual ISqlObject Deveel.Data.Types.SqlType.And	(	ISqlObject	a,
		ISqlObject	b
	)

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType, and Deveel.Data.Types.BooleanType.

Definition at line 258 of file SqlType.cs.

                                                                   {
             return SqlBoolean.Null;
         }

virtual bool Deveel.Data.Types.SqlType.CanCastTo ( SqlType destType )

inlinevirtual

Verifies if this type can cast any value to the given SqlType.

Parameters

destType The other type, destination of the cast, to verify.

By default, this method returns false, because cast process must be specified per type: when overriding the method CastTo, pay attention to also override this method accordingly.

Returns

CastTo

Reimplemented in Deveel.Data.Types.StringType, Deveel.Data.Types.NumericType, Deveel.Data.Types.DateType, Deveel.Data.Types.BooleanType, Deveel.Data.Types.UserType, and Deveel.Data.Xml.XmlNodeType.

Definition at line 153 of file SqlType.cs.

                                                         {
             return false;
         }

virtual DataObject Deveel.Data.Types.SqlType.CastTo	(	DataObject	value,
		SqlType	destType
	)

inlinevirtual

Converts the given object value to a SqlType specified.

Parameters

value	The value to convert.
destType	The destination type of the conversion.

If the given destType destination type is equivalent to this type, it will return the value provided, otherwise it will throw an exception by default.

Casting values to specific types is specific to each data-type: override this method to support type-specific conversions.

When overriding this method, CanCastTo should be overridden accordingly to indicate the type supports casting.

Returns: Returns an instance of DataObject that is the result of the conversion from this data-type to the other type given.

Reimplemented in Deveel.Data.Types.StringType, Deveel.Data.Types.NumericType, Deveel.Data.Types.DateType, Deveel.Data.Types.BinaryType, Deveel.Data.Types.BooleanType, and Deveel.Data.Xml.XmlNodeType.

Definition at line 180 of file SqlType.cs.

                                                                              {
             if (Equals(destType))
                 return value;
 
             // TODO: Should we return a null value instead? NULL OF TYPE anyway is still a cast ...
             throw new NotSupportedException();
         }

virtual int Deveel.Data.Types.SqlType.ColumnSizeOf ( ISqlObject obj )

inlinepackagevirtual

Reimplemented in Deveel.Data.Types.NumericType, Deveel.Data.Types.StringType, Deveel.Data.Types.DateType, Deveel.Data.Types.BooleanType, and Deveel.Data.Types.BinaryType.

Definition at line 416 of file SqlType.cs.

                                                           {
             // TODO: should make this required?
             return 0;
         }

virtual int Deveel.Data.Types.SqlType.Compare	(	ISqlObject	x,
		ISqlObject	y
	)

inlinevirtual

Reimplemented in Deveel.Data.Types.StringType, Deveel.Data.Types.NumericType, Deveel.Data.Routines.Function.DynamicSqlType, and Deveel.Data.Types.BooleanType.

Definition at line 358 of file SqlType.cs.

                                                                {
             if (!x.IsComparableTo(y))
                 throw new NotSupportedException();
 
             if (x.IsNull && y.IsNull)
                 return 0;
             if (x.IsNull && !y.IsNull)
                 return 1;
             if (!x.IsNull && y.IsNull)
                 return -1;
 
             return ((IComparable) x).CompareTo(y);
         }

virtual object Deveel.Data.Types.SqlType.ConvertTo	(	ISqlObject	obj,
		Type	destType
	)

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType, Deveel.Data.Types.StringType, Deveel.Data.Types.NullType, and Deveel.Data.Xml.XmlNodeType.

Definition at line 188 of file SqlType.cs.

                                                                        {
             throw new NotSupportedException();
         }

virtual ISqlObject Deveel.Data.Types.SqlType.CreateFrom ( object value )

inlinevirtual

Definition at line 437 of file SqlType.cs.

                                                            {
             throw new NotSupportedException(String.Format("The type {0} does not support runtime object conversion.", ToString()));
         }

virtual ISqlObject Deveel.Data.Types.SqlType.CreateFromLargeObject ( ILargeObject objRef )

inlinevirtual

Definition at line 429 of file SqlType.cs.

                                                                              {
             throw new NotSupportedException(String.Format("SQL Type {0} cannot be created from a large object.", TypeCode));
         }

virtual ISqlObject Deveel.Data.Types.SqlType.DeserializeObject ( Stream stream )

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType, Deveel.Data.Types.StringType, Deveel.Data.Types.DateType, Deveel.Data.Types.BinaryType, Deveel.Data.Types.BooleanType, Deveel.Data.Types.IntervalType, Deveel.Data.Types.NullType, Deveel.Data.Types.QueryType, and Deveel.Data.Xml.XmlNodeType.

Definition at line 404 of file SqlType.cs.

                                                                    {
             throw new NotSupportedException(String.Format("Type {0} cannot deserialize types.", GetType()));
         }

virtual ISqlObject Deveel.Data.Types.SqlType.Divide	(	ISqlObject	a,
		ISqlObject	b
	)

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType.

Definition at line 204 of file SqlType.cs.

                                                                      {
             return SqlNull.Value;
         }

override bool Deveel.Data.Types.SqlType.Equals ( object obj )

inline

Definition at line 373 of file SqlType.cs.

                                                 {
             var dataType = obj as SqlType;
             if (dataType == null)
                 return false;
 
             return Equals(dataType);
         }

virtual bool Deveel.Data.Types.SqlType.Equals ( SqlType other )

inlinevirtual

Reimplemented in Deveel.Data.Types.StringType.

Definition at line 387 of file SqlType.cs.

                                                   {
             if (other == null)
                 return false;
 
             return TypeCode == other.TypeCode;
         }

virtual int Deveel.Data.Types.SqlType.GetCacheUsage ( ISqlObject value )

inlinepackagevirtual

Definition at line 412 of file SqlType.cs.

                                                              {
             return 0;
         }

void ISerializable. Deveel.Data.Types.SqlType.GetData ( SerializeData data )

inlineprivate

Implements Deveel.Data.Serialization.ISerializable.

Definition at line 278 of file SqlType.cs.

                                                        {
             data.SetValue("Name", Name);
             data.SetValue("TypeCode", (int) TypeCode);
         }

virtual void Deveel.Data.Types.SqlType.GetData ( SerializeData data )

inlineprotectedvirtual

Implements Deveel.Data.Serialization.ISerializable.

Reimplemented in Deveel.Data.Types.StringType, Deveel.Data.Types.BinaryType, and Deveel.Data.Types.NumericType.

Definition at line 283 of file SqlType.cs.

283 {

284 }

override int Deveel.Data.Types.SqlType.GetHashCode ( )

inline

Definition at line 382 of file SqlType.cs.

                                           {
             return TypeCode.GetHashCode();
         }

virtual Type Deveel.Data.Types.SqlType.GetObjectType ( )

inlinevirtual

Reimplemented in Deveel.Data.Types.StringType, Deveel.Data.Types.DateType, Deveel.Data.Types.BinaryType, Deveel.Data.Types.NumericType, Deveel.Data.Types.IntervalType, Deveel.Data.Types.BooleanType, and Deveel.Data.Types.ArrayType.

Definition at line 425 of file SqlType.cs.

                                             {
             throw new NotSupportedException();
         }

virtual Type Deveel.Data.Types.SqlType.GetRuntimeType ( )

inlinevirtual

Reimplemented in Deveel.Data.Types.StringType, Deveel.Data.Types.DateType, Deveel.Data.Types.BinaryType, Deveel.Data.Types.NumericType, Deveel.Data.Types.BooleanType, Deveel.Data.Types.IntervalType, and Deveel.Data.Types.ArrayType.

Definition at line 421 of file SqlType.cs.

                                              {
             throw new NotSupportedException();
         }

virtual bool Deveel.Data.Types.SqlType.IsCacheable ( ISqlObject value )

inlinevirtual

Reimplemented in Deveel.Data.Types.StringType, Deveel.Data.Types.NumericType, Deveel.Data.Types.DateType, Deveel.Data.Types.BinaryType, Deveel.Data.Types.BooleanType, and Deveel.Data.Types.IntervalType.

Definition at line 408 of file SqlType.cs.

                                                           {
             return false;
         }

virtual bool Deveel.Data.Types.SqlType.IsComparable ( SqlType type )

inlinevirtual

Verifies if a given SqlType is comparable to this data-type.

Parameters

type	The other data-type to verify the compatibility.

It is not required two SqlType to be identical to be compared: when overridden by a derived class, this methods verifies the properties of the argument type, to see if values handled by the types can be compared.

By default, this method compares the values returned by TypeCode to see if they are identical.

Returns: Returns true if the values handled by this data-type can be compared to ones handled by the given type , or false otherwise.

Reimplemented in Deveel.Data.Types.NumericType, Deveel.Data.Types.StringType, Deveel.Data.Routines.Function.DynamicSqlType, Deveel.Data.Types.DateType, Deveel.Data.Types.BooleanType, Deveel.Data.Types.IntervalType, Deveel.Data.Types.UserType, and Deveel.Data.Spatial.SpatialType.

Definition at line 137 of file SqlType.cs.

                                                        {
             return TypeCode == type.TypeCode;
         }

virtual SqlBoolean Deveel.Data.Types.SqlType.IsEqualTo	(	ISqlObject	a,
		ISqlObject	b
	)

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType.

Definition at line 216 of file SqlType.cs.

                                                                         {
             if (!a.IsComparableTo(b))
                 return SqlBoolean.Null;
 
             return a.CompareTo(b) == 0;
         }

virtual SqlBoolean Deveel.Data.Types.SqlType.IsGreaterOrEqualThan	(	ISqlObject	a,
		ISqlObject	b
	)

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType.

Definition at line 244 of file SqlType.cs.

                                                                                    {
             if (!a.IsComparableTo(b))
                 return SqlBoolean.Null;
 
             return a.CompareTo(b) >= 0;
         }

virtual SqlBoolean Deveel.Data.Types.SqlType.IsGreatherThan	(	ISqlObject	a,
		ISqlObject	b
	)

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType.

Definition at line 230 of file SqlType.cs.

                                                                              {
             if (!a.IsComparableTo(b))
                 return SqlBoolean.Null;
 
             return a.CompareTo(b) > 0;
         }

virtual SqlBoolean Deveel.Data.Types.SqlType.IsNotEqualTo	(	ISqlObject	a,
		ISqlObject	b
	)

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType.

Definition at line 223 of file SqlType.cs.

                                                                            {
             if (!a.IsComparableTo(b))
                 return SqlBoolean.Null;
 
             return a.CompareTo(b) != 0;
         }

static bool Deveel.Data.Types.SqlType.IsPrimitiveType ( SqlTypeCode typeCode )

inlinestatic

Definition at line 433 of file SqlType.cs.

                                                                  {
             return PrimitiveTypes.IsPrimitive(typeCode);
         }

virtual SqlBoolean Deveel.Data.Types.SqlType.IsSmallerOrEqualThan	(	ISqlObject	a,
		ISqlObject	b
	)

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType.

Definition at line 251 of file SqlType.cs.

                                                                                    {
             if (!a.IsComparableTo(b))
                 return SqlBoolean.Null;
 
             return a.CompareTo(b) <= 0;
         }

virtual SqlBoolean Deveel.Data.Types.SqlType.IsSmallerThan	(	ISqlObject	a,
		ISqlObject	b
	)

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType.

Definition at line 237 of file SqlType.cs.

                                                                             {
             if (!a.IsComparableTo(b))
                 return SqlBoolean.Null;
 
             return a.CompareTo(b) < 0;
         }

virtual ISqlObject Deveel.Data.Types.SqlType.Modulus	(	ISqlObject	a,
		ISqlObject	b
	)

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType.

Definition at line 208 of file SqlType.cs.

                                                                       {
             return SqlNull.Value;
         }

virtual ISqlObject Deveel.Data.Types.SqlType.Multiply	(	ISqlObject	a,
		ISqlObject	b
	)

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType.

Definition at line 200 of file SqlType.cs.

                                                                        {
             return SqlNull.Value;
         }

virtual ISqlObject Deveel.Data.Types.SqlType.Negate ( ISqlObject value )

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType, and Deveel.Data.Types.BooleanType.

Definition at line 212 of file SqlType.cs.

                                                            {
             return SqlNull.Value;
         }

virtual ISqlObject Deveel.Data.Types.SqlType.Or	(	ISqlObject	a,
		ISqlObject	b
	)

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType, and Deveel.Data.Types.BooleanType.

Definition at line 262 of file SqlType.cs.

                                                                  {
             return SqlBoolean.Null;
         }

static SqlType Deveel.Data.Types.SqlType.Parse ( string s )

inlinestatic

Parses a SQL formatted string that defines a data-type into a constructed SqlType object equivalent.

Parameters

s	The SQL formatted data-type string, defining the properties of the type.

This method only supports primitive types.

Returns

See also: PrimitiveTypes.IsPrimitive(Deveel.Data.Types.SqlTypeCode), ToString()

Definition at line 321 of file SqlType.cs.

                                               {
             return Parse(null, s);
         }

static SqlType Deveel.Data.Types.SqlType.Parse	(	IContext	context,
		string	s
	)

inlinestatic

Parses a SQL formatted string that defines a data-type into a constructed SqlType object equivalent.

Parameters

query
s	The SQL formatted data-type string, defining the properties of the type.

This method only supports primitive types.

Returns

See also: PrimitiveTypes.IsPrimitive(Deveel.Data.Types.SqlTypeCode), ToString()

Definition at line 338 of file SqlType.cs.

                                                                 {
             var sqlCompiler = SqlParsers.DataType;
 
             try {
                 var result = sqlCompiler.Parse(s);
                 if (result.HasErrors)
                     throw new SqlParseException(result.Errors.First().Message);
 
                 var node = (DataTypeNode) result.RootNode;
 
                 if (context == null && !node.IsPrimitive)
                     throw new NotSupportedException(String.Format("The type '{0}' is not primitive and no resolve context is provided.", node.TypeName));
 
                 return DataTypeBuilder.Build(context.TypeResolver(), node);
             } catch (SqlParseException) {
                 throw new FormatException("Unable to parse the given string to a valid data type.");
             }
         }

static SqlType Deveel.Data.Types.SqlType.Resolve ( SqlTypeCode typeCode )

inlinestatic

Definition at line 441 of file SqlType.cs.

                                                             {
             return Resolve(typeCode, new DataTypeMeta[0]);
         }

static SqlType Deveel.Data.Types.SqlType.Resolve	(	SqlTypeCode	typeCode,
		DataTypeMeta[]	meta
	)

inlinestatic

Definition at line 445 of file SqlType.cs.

                                                                                  {
             return Resolve(typeCode, meta, null);
         }

static SqlType Deveel.Data.Types.SqlType.Resolve	(	SqlTypeCode	typeCode,
		DataTypeMeta[]	meta,
		ITypeResolver	resolver
	)

inlinestatic

Definition at line 449 of file SqlType.cs.

                                                                                                          {
             return Resolve(typeCode, typeCode.ToString().ToUpperInvariant(), meta, resolver);
         }

static SqlType Deveel.Data.Types.SqlType.Resolve	(	SqlTypeCode	typeCode,
		string	name
	)

inlinestatic

Definition at line 453 of file SqlType.cs.

                                                                          {
             return Resolve(typeCode, name, new DataTypeMeta[0]);
         }

static SqlType Deveel.Data.Types.SqlType.Resolve	(	SqlTypeCode	typeCode,
		string	name,
		DataTypeMeta[]	meta
	)

inlinestatic

Definition at line 457 of file SqlType.cs.

                                                                                               {
             return Resolve(typeCode, name, meta, null);
         }

static SqlType Deveel.Data.Types.SqlType.Resolve ( string name )

inlinestatic

Definition at line 461 of file SqlType.cs.

                                                    {
             return Resolve(name, new DataTypeMeta[0]);
         }

static SqlType Deveel.Data.Types.SqlType.Resolve	(	string	name,
		DataTypeMeta[]	meta
	)

inlinestatic

Definition at line 465 of file SqlType.cs.

                                                                         {
             return Resolve(name, meta, null);
         }

static SqlType Deveel.Data.Types.SqlType.Resolve	(	string	name,
		DataTypeMeta[]	meta,
		ITypeResolver	resolver
	)

inlinestatic

Definition at line 469 of file SqlType.cs.

                                                                                                 {
             var typeCode = ResolveTypeCode(name);
             return Resolve(typeCode, name, meta, resolver);
         }

static SqlType Deveel.Data.Types.SqlType.Resolve	(	SqlTypeCode	typeCode,
		string	name,
		DataTypeMeta[]	meta,
		ITypeResolver	resolver
	)

inlinestatic

Definition at line 474 of file SqlType.cs.

                                                                                                                       {
             return TypeResolver.Resolve(typeCode, name, meta, resolver);
         }

static SqlTypeCode Deveel.Data.Types.SqlType.ResolveTypeCode ( string name )

inlinestaticprivate

Definition at line 478 of file SqlType.cs.

                                                                 {
             var typeCode = PrimitiveTypes.ResolveTypeCode(name);
             if (typeCode == SqlTypeCode.Unknown)
                 typeCode = SqlTypeCode.Type;
 
             return typeCode;
         }

virtual ISqlObject Deveel.Data.Types.SqlType.Reverse ( ISqlObject value )

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType, and Deveel.Data.Types.BooleanType.

Definition at line 274 of file SqlType.cs.

                                                             {
             return SqlNull.Value;
         }

virtual void Deveel.Data.Types.SqlType.SerializeObject	(	Stream	stream,
		ISqlObject	obj
	)

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType, Deveel.Data.Types.StringType, Deveel.Data.Types.DateType, Deveel.Data.Types.BinaryType, Deveel.Data.Types.BooleanType, Deveel.Data.Types.IntervalType, Deveel.Data.Types.QueryType, Deveel.Data.Types.NullType, and Deveel.Data.Xml.XmlNodeType.

Definition at line 399 of file SqlType.cs.

                                                                            {
             throw new NotSupportedException(String.Format("Type {0} cannot serialize object of type {1}.", GetType(),
                 obj.GetType()));
         }

virtual ISqlObject Deveel.Data.Types.SqlType.Subtract	(	ISqlObject	a,
		ISqlObject	b
	)

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType.

Definition at line 196 of file SqlType.cs.

                                                                        {
             return SqlNull.Value;
         }

override string Deveel.Data.Types.SqlType.ToString ( )

inline

Definition at line 395 of file SqlType.cs.

                                           {
             return Name;
         }

virtual ISqlObject Deveel.Data.Types.SqlType.UnaryPlus ( ISqlObject value )

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType.

Definition at line 270 of file SqlType.cs.

                                                               {
             return SqlNull.Value;
         }

virtual SqlType Deveel.Data.Types.SqlType.Wider ( SqlType otherType )

inlinevirtual

Gets the one data-type between this and the other one given that handles the wider range of values.

Parameters

otherType The other type to verify.

This is very important for operations and functions, when operating on objects with comparable but different data-types, to ensure the result of the operation will be capable to handle the final value.

By default, this method returns this instance, as it is not able to dynamically define the wider type.

Returns: Returns this type if it handles a wider range of values or otherType other type given otherwise.

Reimplemented in Deveel.Data.Types.NumericType.

Definition at line 305 of file SqlType.cs.

                                                         {
             return this;
         }

virtual ISqlObject Deveel.Data.Types.SqlType.XOr	(	ISqlObject	x,
		ISqlObject	y
	)

inlinevirtual

Reimplemented in Deveel.Data.Types.NumericType, and Deveel.Data.Types.BooleanType.

Definition at line 266 of file SqlType.cs.

                                                                   {
             return SqlNull.Value;
         }

Property Documentation

virtual bool Deveel.Data.Types.SqlType.IsIndexable

get

Indicates if the values handled by the type can be part of an index.

By default, this returns true, since most of primitive types are indexable (except for Long Objects).

Definition at line 100 of file SqlType.cs.

bool Deveel.Data.Types.SqlType.IsNull

get

Definition at line 111 of file SqlType.cs.

bool Deveel.Data.Types.SqlType.IsPrimitive

get

Gets a value indicating if this data-type is primitive.

Definition at line 107 of file SqlType.cs.

virtual bool Deveel.Data.Types.SqlType.IsStorable

get

Definition at line 115 of file SqlType.cs.

string Deveel.Data.Types.SqlType.Name

getprivate set

Gets the name of the data-type that is used to resolve it within the context.

This value is always unique within a database system and can be simple (eg. for primitive types like NUMERIC), or composed by multiple parts (eg. for user-defined types).

Some primitive types (for example NUMERIC) can handle multiple SQL types, so this property works as an identificator for the type handler.

Definition at line 75 of file SqlType.cs.

SqlTypeCode Deveel.Data.Types.SqlType.TypeCode

getprivate set

Gets the kind of SQL type this data-type handles.

The same instance of a SqlType can handle multiple kind of SQL types, making such instances, of the same kind, to be different in attributes.

In fact, for example a NUMERIC data-type materialized as INTEGER is not equal to NUMERIC data-type materialized as BIGINT: the two instances will be comparable, but they won't be considered coincident.

IsComparable

Definition at line 91 of file SqlType.cs.

The documentation for this class was generated from the following file:

/var/calculate/remote/distfiles/egit-src/deveeldb.git/src/deveeldb/Deveel.Data.Types/SqlType.cs

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