The most simple implementation of a SQL string with a small size More...

Inheritance diagram for Deveel.Data.Sql.Objects.SqlString:

Classes
class	StringEnumerator

Public Member Functions
	SqlString (char[] chars)
	Initializes a new instance of the SqlString structure with the given set of characters. More...

	SqlString (char[] chars, int length)
	Initializes a new instance of the SqlString structure. More...

	SqlString (string source)

	SqlString (byte[] bytes, int offset, int length)

	SqlString (byte[] bytes)

int IComparable.	CompareTo (object obj)

int IComparable< ISqlObject >.	CompareTo (ISqlObject other)

bool ISqlObject.	IsComparableTo (ISqlObject other)
	Checks if the current object is comparable with the given one. More...

int	CompareTo (ISqlString other)

IEnumerator< char >	GetEnumerator ()

IEnumerator IEnumerable.	GetEnumerator ()

void ISerializable.	GetData (SerializeData data)

string	ToString (Encoding encoding)

TextReader	GetInput (Encoding encoding)

bool	Equals (SqlString other)

override bool	Equals (object obj)

override int	GetHashCode ()

byte[]	ToByteArray (Encoding encoding)

SqlString	Concat (ISqlString other)

int	GetByteCount (Encoding encoding)

override string	ToString ()

TypeCode IConvertible.	GetTypeCode ()

bool IConvertible.	ToBoolean (IFormatProvider provider)

char IConvertible.	ToChar (IFormatProvider provider)

sbyte IConvertible.	ToSByte (IFormatProvider provider)

byte IConvertible.	ToByte (IFormatProvider provider)

short IConvertible.	ToInt16 (IFormatProvider provider)

ushort IConvertible.	ToUInt16 (IFormatProvider provider)

int IConvertible.	ToInt32 (IFormatProvider provider)

uint IConvertible.	ToUInt32 (IFormatProvider provider)

long IConvertible.	ToInt64 (IFormatProvider provider)

ulong IConvertible.	ToUInt64 (IFormatProvider provider)

float IConvertible.	ToSingle (IFormatProvider provider)

double IConvertible.	ToDouble (IFormatProvider provider)

decimal IConvertible.	ToDecimal (IFormatProvider provider)

DateTime IConvertible.	ToDateTime (IFormatProvider provider)

string IConvertible.	ToString (IFormatProvider provider)

object IConvertible.	ToType (Type conversionType, IFormatProvider provider)

SqlBoolean	ToBoolean ()

SqlNumber	ToNumber ()

SqlDateTime	ToDateTime ()

SqlBinary	ToBinary ()

char[]	ToCharArray ()

Public Attributes
const int	MaxLength = Int16.MaxValue
	The maximum length of characters a SqlString can handle. More...

Static Public Attributes
static readonly SqlString	Null = new SqlString(null, 0, true)
	The `null` instance of a string. More...

Properties
bool	IsNull `[get, private set]`

Encoding ISqlString.	Encoding `[get]`

string	Value `[get]`

char	this[long index] `[get]`

long	Length `[get, private set]`

Properties inherited from Deveel.Data.Sql.Objects.ISqlString
Encoding	Encoding `[get]`

long	Length `[get]`

char	this[long offset] `[get]`

Properties inherited from Deveel.Data.Sql.Objects.ISqlObject
bool	IsNull `[get]`
	Gets a boolean value indicating if the object is `NULL`. More...

Private Member Functions
	SqlString (char[] chars, int length, bool isNull)

	SqlString (ObjectData data)

Static Private Member Functions
static char[]	GetChars (byte[] bytes, int offset, int length)

Private Attributes
readonly byte[]	source

Detailed Description

The most simple implementation of a SQL string with a small size

Instances of this object handle strings that are not backed by large objects and can handle a fixed length of characters.

The encoding of the string is dependent from the StringType that defines an object, but the default is UnicodeEncoding.

See also: ISqlString

Definition at line 42 of file SqlString.cs.

Constructor & Destructor Documentation

Deveel.Data.Sql.Objects.SqlString.SqlString	(	char[]	chars,
		int	length,
		bool	isNull
	)

inlineprivate

Definition at line 55 of file SqlString.cs.

                                                                  : this() {
             if (chars == null) {
                 source = null;
             } else {
                 if (length > MaxLength)
                     throw new ArgumentOutOfRangeException("length");
 
                 source = Encoding.Unicode.GetBytes(chars);
                 Length = Encoding.Unicode.GetCharCount(source);
             }
 
             IsNull = isNull || source == null;
         }

Deveel.Data.Sql.Objects.SqlString.SqlString ( char[] chars )

inline

Initializes a new instance of the SqlString structure with the given set of characters.

Parameters

chars The chars.

Definition at line 74 of file SqlString.cs.

75 : this(chars, chars == null ? 0 : chars.Length) {

76 }

Deveel.Data.Sql.Objects.SqlString.SqlString	(	char[]	chars,
		int	length
	)

inline

Initializes a new instance of the SqlString structure.

Parameters

chars	The chars.
length	The length.

Exceptions

System.ArgumentOutOfRangeException length

Definition at line 84 of file SqlString.cs.

85 : this(chars, length, false) {

86 }

Deveel.Data.Sql.Objects.SqlString.SqlString ( string source )

inline

Definition at line 88 of file SqlString.cs.

89 : this(source == null ? (char[]) null : source.ToCharArray()) {

90 }

Deveel.Data.Sql.Objects.SqlString.source

readonly byte[] source

Definition: SqlString.cs:53

Deveel.Data.Sql.Objects.SqlString.SqlString	(	byte[]	bytes,
		int	offset,
		int	length
	)

inline

Definition at line 92 of file SqlString.cs.

93 : this(GetChars(bytes, offset, length)) {

94 }

Deveel.Data.Sql.Objects.SqlString.GetChars

static char[] GetChars(byte[] bytes, int offset, int length)

Definition: SqlString.cs:105

Deveel.Data.Sql.Objects.SqlString.SqlString ( byte[] bytes )

inline

Definition at line 96 of file SqlString.cs.

97 : this(bytes, 0, bytes == null ? 0 : bytes.Length) {

98 }

Deveel.Data.Sql.Objects.SqlString.SqlString ( ObjectData data )

inlineprivate

Definition at line 100 of file SqlString.cs.

             : this() {
             source = data.GetValue<byte[]>("Source");
         }

Member Function Documentation

int IComparable. Deveel.Data.Sql.Objects.SqlString.CompareTo ( object obj )

inline

Definition at line 112 of file SqlString.cs.

                                               {
             return CompareTo((ISqlString) obj);
         }

int IComparable<ISqlObject>. Deveel.Data.Sql.Objects.SqlString.CompareTo ( ISqlObject other )

inline

Definition at line 116 of file SqlString.cs.

                                                                 {
             return CompareTo((ISqlString) other);
         }

int Deveel.Data.Sql.Objects.SqlString.CompareTo ( ISqlString other )

inline

Definition at line 149 of file SqlString.cs.

                                                {
             if (other == null)
                 throw new ArgumentNullException("other");
 
             if (IsNull && other.IsNull)
                 return 0;
             if (IsNull)
                 return 1;
             if (other.IsNull)
                 return -1;
 
             if (other is SqlString) {
                 var otherString = (SqlString) other;
                 return String.Compare(Value, otherString.Value, StringComparison.Ordinal);
             }
 
             throw new NotImplementedException("Comparison with long strong not implemented yet.");
         }

SqlString Deveel.Data.Sql.Objects.SqlString.Concat ( ISqlString other )

inline

Definition at line 262 of file SqlString.cs.

                                                   {
             if (other == null || other.IsNull)
                 return this;
 
             if (other is SqlString) {
                 var otheString = (SqlString) other;
                 var length = (int) (Length + otheString.Length);
                 if (length >= MaxLength)
                     throw new ArgumentException("The final string will be over the maximum length");
 
                 var sourceChars = ToCharArray();
                 var otherChars = otheString.ToCharArray();
                 var destChars = new char[length];
 
                 Array.Copy(sourceChars, 0, destChars, 0, (int)Length);
                 Array.Copy(otherChars, 0, destChars, (int)Length, (int)otheString.Length);
                 return new SqlString(destChars, length);
             }
 
             var sb = new StringBuilder(Int16.MaxValue);
             using (var output = new StringWriter(sb)) {
                 // First read the current stream
                 using (var reader = GetInput(Encoding.Unicode)) {
                     var buffer = new char[2048];
                     int count;
                     while ((count = reader.Read(buffer, 0, buffer.Length)) != 0) {
                         output.Write(buffer, 0, count);
                     }
                 }
 
                 // Then read the second stream
                 using (var reader = other.GetInput(Encoding.Unicode)) {
                     var buffer = new char[2048];
                     int count;
                     while ((count = reader.Read(buffer, 0, buffer.Length)) != 0) {
                         output.Write(buffer, 0, count);
                     }
                 }
 
                 output.Flush();
             }
 
 #if PCL
             var s = sb.ToString();
             return new SqlString(s);
 
 #else
             var outChars = new char[sb.Length];
             sb.CopyTo(0, outChars, 0, sb.Length);
             return new SqlString(outChars, outChars.Length);
 #endif
         }

bool Deveel.Data.Sql.Objects.SqlString.Equals ( SqlString other )

inline

Definition at line 209 of file SqlString.cs.

                                             {
             if (source == null && other.source == null)
                 return true;
 
             if (source == null)
                 return false;
 
             if (source.Length != other.source.Length)
                 return false;
 
             for (int i = 0; i < source.Length; i++) {
                 var c1 = source[i];
                 var c2 = other.source[i];
                 if (!c1.Equals(c2))
                     return false;
             }
 
             return true;
         }

override bool Deveel.Data.Sql.Objects.SqlString.Equals ( object obj )

inline

Definition at line 229 of file SqlString.cs.

                                                 {
             if (obj is SqlNull && IsNull)
                 return true;
 
             return Equals((SqlString) obj);
         }

int Deveel.Data.Sql.Objects.SqlString.GetByteCount ( Encoding encoding )

inline

Definition at line 315 of file SqlString.cs.

                                                    {
             if (IsNull)
                 return 0;
 
             var bytes = Encoding.Convert(Encoding.Unicode, encoding, source);
             return bytes.Length;
         }

static char [] Deveel.Data.Sql.Objects.SqlString.GetChars	(	byte[]	bytes,
		int	offset,
		int	length
	)

inlinestaticprivate

Definition at line 105 of file SqlString.cs.

                                                                              {
             if (bytes == null)
                 return null;
 
             return Encoding.Unicode.GetChars(bytes, offset, length);
         }

void ISerializable. Deveel.Data.Sql.Objects.SqlString.GetData ( SerializeData data )

inline

Implements Deveel.Data.Serialization.ISerializable.

Definition at line 178 of file SqlString.cs.

                                                        {
             data.SetValue("Source", source);
         }

IEnumerator<char> Deveel.Data.Sql.Objects.SqlString.GetEnumerator ( )

inline

Definition at line 168 of file SqlString.cs.

                                                  {
             return new StringEnumerator(this);
         }

IEnumerator IEnumerable. Deveel.Data.Sql.Objects.SqlString.GetEnumerator ( )

inline

Definition at line 172 of file SqlString.cs.

                                                 {
             return GetEnumerator();
         }

override int Deveel.Data.Sql.Objects.SqlString.GetHashCode ( )

inline

Definition at line 236 of file SqlString.cs.

                                           {
             if (source == null)
                 return 0;
 
             unchecked {
                 int hash = 17;
 
                 // get hash code for all items in array
                 foreach (var item in source) {
                     hash = hash*23 + item.GetHashCode();
                 }
 
                 return hash;
             }
         }

TextReader Deveel.Data.Sql.Objects.SqlString.GetInput ( Encoding encoding )

inline

Implements Deveel.Data.Sql.Objects.ISqlString.

Definition at line 194 of file SqlString.cs.

                                                       {
             if (IsNull)
                 return TextReader.Null;
 
             if (encoding == null)
                 encoding = Encoding.Unicode;
 
             var bytes = source;
             if (!encoding.Equals(Encoding.Unicode))
                 bytes = Encoding.Convert(Encoding.Unicode, encoding, bytes);
 
             var stream = new MemoryStream(bytes);
             return new StreamReader(stream, encoding);
         }

TypeCode IConvertible. Deveel.Data.Sql.Objects.SqlString.GetTypeCode ( )

inline

Definition at line 366 of file SqlString.cs.

                                             {
             return TypeCode.String;
         }

bool ISqlObject. Deveel.Data.Sql.Objects.SqlString.IsComparableTo ( ISqlObject other )

inline

Checks if the current object is comparable with the given one.

Parameters

other The other ISqlObject to compare.

Returns: Returns true if the current object is comparable with the given one, false otherwise.

Implements Deveel.Data.Sql.Objects.ISqlObject.

Definition at line 145 of file SqlString.cs.

                                                          {
             return other is ISqlString;
         }

SqlBinary Deveel.Data.Sql.Objects.SqlString.ToBinary ( )

inline

Definition at line 497 of file SqlString.cs.

                                     {
             var bytes = ToByteArray(Encoding.Unicode);
             return new SqlBinary(bytes);
         }

bool IConvertible. Deveel.Data.Sql.Objects.SqlString.ToBoolean ( IFormatProvider provider )

inline

Definition at line 370 of file SqlString.cs.

                                                               {
             return Convert.ToBoolean(Value, provider);
         }

SqlBoolean Deveel.Data.Sql.Objects.SqlString.ToBoolean ( )

inline

Definition at line 473 of file SqlString.cs.

                                       {
             SqlBoolean value;
             if (!SqlBoolean.TryParse(Value, out value))
                 return SqlBoolean.Null;         // TODO: Should we throw an exception?
 
             return value;
         }

byte IConvertible. Deveel.Data.Sql.Objects.SqlString.ToByte ( IFormatProvider provider )

inline

Definition at line 382 of file SqlString.cs.

                                                            {
             return Convert.ToByte(Value, provider);
         }

byte [] Deveel.Data.Sql.Objects.SqlString.ToByteArray ( Encoding encoding )

inline

Definition at line 252 of file SqlString.cs.

                                                      {
             if (encoding == null)
                 throw new ArgumentNullException("encoding");
 
             if (source == null)
                 return new byte[0];
 
             return (byte[]) source.Clone();
         }

char IConvertible. Deveel.Data.Sql.Objects.SqlString.ToChar ( IFormatProvider provider )

inline

Definition at line 374 of file SqlString.cs.

                                                            {
             return Convert.ToChar(Value, provider);
         }

char [] Deveel.Data.Sql.Objects.SqlString.ToCharArray ( )

inline

Definition at line 502 of file SqlString.cs.

                                     {
             if (source == null)
                 return new char[0];
 
             return Encoding.Unicode.GetChars(source);
         }

DateTime IConvertible. Deveel.Data.Sql.Objects.SqlString.ToDateTime ( IFormatProvider provider )

inline

Definition at line 422 of file SqlString.cs.

                                                                    {
             return Convert.ToDateTime(Value, provider);
         }

SqlDateTime Deveel.Data.Sql.Objects.SqlString.ToDateTime ( )

inline

Definition at line 489 of file SqlString.cs.

                                         {
             SqlDateTime value;
             if (!SqlDateTime.TryParse(Value, out value))
                 return SqlDateTime.Null;        // TODO: Shoudl we throw an exception?
 
             return value;
         }

decimal IConvertible. Deveel.Data.Sql.Objects.SqlString.ToDecimal ( IFormatProvider provider )

inline

Definition at line 418 of file SqlString.cs.

                                                                  {
             return Convert.ToDecimal(Value, provider);
         }

double IConvertible. Deveel.Data.Sql.Objects.SqlString.ToDouble ( IFormatProvider provider )

inline

Definition at line 414 of file SqlString.cs.

                                                                {
             return Convert.ToDouble(Value, provider);
         }

short IConvertible. Deveel.Data.Sql.Objects.SqlString.ToInt16 ( IFormatProvider provider )

inline

Definition at line 386 of file SqlString.cs.

                                                              {
             return Convert.ToInt16(Value, provider);
         }

int IConvertible. Deveel.Data.Sql.Objects.SqlString.ToInt32 ( IFormatProvider provider )

inline

Definition at line 394 of file SqlString.cs.

                                                            {
             return Convert.ToInt32(Value, provider);
         }

long IConvertible. Deveel.Data.Sql.Objects.SqlString.ToInt64 ( IFormatProvider provider )

inline

Definition at line 402 of file SqlString.cs.

                                                             {
             return Convert.ToInt64(Value, provider);
         }

SqlNumber Deveel.Data.Sql.Objects.SqlString.ToNumber ( )

inline

Definition at line 481 of file SqlString.cs.

                                     {
             SqlNumber value;
             if (!SqlNumber.TryParse(Value, out value))
                 return SqlNumber.Null;          // TODO: Shoudl we throw an exception?
 
             return value;
         }

sbyte IConvertible. Deveel.Data.Sql.Objects.SqlString.ToSByte ( IFormatProvider provider )

inline

Definition at line 378 of file SqlString.cs.

                                                              {
             return Convert.ToSByte(Value, provider);
         }

float IConvertible. Deveel.Data.Sql.Objects.SqlString.ToSingle ( IFormatProvider provider )

inline

Definition at line 410 of file SqlString.cs.

                                                               {
             return Convert.ToSingle(Value, provider);
         }

string Deveel.Data.Sql.Objects.SqlString.ToString ( Encoding encoding )

inline

Definition at line 182 of file SqlString.cs.

                                                   {
             if (IsNull)
                 return null;
 
             var bytes = source;
 
             if (!encoding.Equals(Encoding.Unicode))
                 bytes = Encoding.Convert(Encoding.Unicode, encoding, bytes);
 
             return encoding.GetString(bytes, 0, bytes.Length);
         }

override string Deveel.Data.Sql.Objects.SqlString.ToString ( )

inline

Definition at line 362 of file SqlString.cs.

                                           {
             return Value;
         }

string IConvertible. Deveel.Data.Sql.Objects.SqlString.ToString ( IFormatProvider provider )

inline

Definition at line 426 of file SqlString.cs.

                                                                {
             return Convert.ToString(Value, provider);
         }

object IConvertible. Deveel.Data.Sql.Objects.SqlString.ToType	(	Type	conversionType,
		IFormatProvider	provider
	)

inline

Definition at line 430 of file SqlString.cs.

                                                                                   {
             if (conversionType == typeof (bool))
                 return Convert.ToBoolean(Value, provider);
             if (conversionType == typeof (byte))
                 return Convert.ToByte(Value, provider);
             if (conversionType == typeof (sbyte))
                 return Convert.ToSByte(Value, provider);
             if (conversionType == typeof (short))
                 return Convert.ToInt16(Value, provider);
             if (conversionType == typeof (ushort))
                 return Convert.ToUInt16(Value, provider);
             if (conversionType == typeof (int))
                 return Convert.ToInt32(Value, provider);
             if (conversionType == typeof (uint))
                 return Convert.ToUInt32(Value, provider);
             if (conversionType == typeof (long))
                 return Convert.ToInt64(Value, provider);
             if (conversionType == typeof (ulong))
                 return Convert.ToUInt64(Value, provider);
             if (conversionType == typeof (float))
                 return Convert.ToSingle(Value, provider);
             if (conversionType == typeof (double))
                 return Convert.ToDouble(Value, provider);
             if (conversionType == typeof (decimal))
                 return Convert.ToDecimal(Value, provider);
             if (conversionType == typeof (string))
                 return Convert.ToString(Value, provider);
 
             if (conversionType == typeof (char[]))
                 return ToCharArray();
 
             if (conversionType == typeof (SqlNumber))
                 return ToNumber();
             if (conversionType == typeof (SqlBoolean))
                 return ToBoolean();
             if (conversionType == typeof (SqlDateTime))
                 return ToDateTime();
             if (conversionType == typeof (SqlBinary))
                 return ToBinary();
 
             throw new InvalidCastException(String.Format("Cannot convet SQL STRING to {0}", conversionType.FullName));
         }

ushort IConvertible. Deveel.Data.Sql.Objects.SqlString.ToUInt16 ( IFormatProvider provider )

inline

Definition at line 390 of file SqlString.cs.

                                                                {
             return Convert.ToUInt16(Value, provider);
         }

uint IConvertible. Deveel.Data.Sql.Objects.SqlString.ToUInt32 ( IFormatProvider provider )

inline

Definition at line 398 of file SqlString.cs.

                                                              {
             return Convert.ToUInt32(Value, provider);
         }

ulong IConvertible. Deveel.Data.Sql.Objects.SqlString.ToUInt64 ( IFormatProvider provider )

inline

Definition at line 406 of file SqlString.cs.

                                                               {
             return Convert.ToUInt64(Value, provider);
         }

Member Data Documentation

const int Deveel.Data.Sql.Objects.SqlString.MaxLength = Int16.MaxValue

The maximum length of characters a SqlString can handle.

Definition at line 46 of file SqlString.cs.

readonly SqlString Deveel.Data.Sql.Objects.SqlString.Null = new SqlString(null, 0, true)

static

The null instance of a string.

Definition at line 51 of file SqlString.cs.

readonly byte [] Deveel.Data.Sql.Objects.SqlString.source

private

Definition at line 53 of file SqlString.cs.

Property Documentation

Encoding ISqlString. Deveel.Data.Sql.Objects.SqlString.Encoding

get

Definition at line 122 of file SqlString.cs.

bool Deveel.Data.Sql.Objects.SqlString.IsNull

getprivate set

Definition at line 120 of file SqlString.cs.

long Deveel.Data.Sql.Objects.SqlString.Length

getprivate set

Definition at line 176 of file SqlString.cs.

char Deveel.Data.Sql.Objects.SqlString.this[long index]

get

Definition at line 130 of file SqlString.cs.

string Deveel.Data.Sql.Objects.SqlString.Value

get

Definition at line 126 of file SqlString.cs.

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

/var/calculate/remote/distfiles/egit-src/deveeldb.git/src/deveeldb/Deveel.Data.Sql.Objects/SqlString.cs

Classes

Public Member Functions

Public Attributes

Static Public Attributes

Properties

Private Member Functions

Static Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

Property Documentation