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//------------------------------------------------------------------------------
// <copyright file="SqlMetaData.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
// <owner current="true" primary="true">Microsoft</owner>
// <owner current="true" primary="false">Microsoft</owner>
// <owner current="true" primary="false">Microsoft</owner>
//------------------------------------------------------------------------------
namespace Microsoft.SqlServer.Server {
using System;
using System.Data;
using System.Data.Common;
using System.Diagnostics;
using System.Globalization;
using System.Data.SqlTypes;
using System.Data.SqlClient;
// class SqlMetaData
// Simple immutable implementation of the a metadata-holding class. Only
// complexities are:
// 1) enforcing immutability.
// 2) Inferring type from a value.
// 3) Adjusting a value to match the metadata.
public sealed class SqlMetaData
{
private string m_strName;
private long m_lMaxLength;
private SqlDbType m_sqlDbType;
private byte m_bPrecision;
private byte m_bScale;
private long m_lLocale;
private SqlCompareOptions m_eCompareOptions;
private string m_XmlSchemaCollectionDatabase;
private string m_XmlSchemaCollectionOwningSchema;
private string m_XmlSchemaCollectionName;
private string m_serverTypeName;
private bool m_bPartialLength;
private Type m_udttype;
private bool m_useServerDefault;
private bool m_isUniqueKey;
private SortOrder m_columnSortOrder;
private int m_sortOrdinal;
// unlimited (except by implementation) max-length.
private const long x_lMax = -1;
private const long x_lServerMaxUnicode = 4000;
private const long x_lServerMaxANSI = 8000;
private const long x_lServerMaxBinary = 8000;
private const bool x_defaultUseServerDefault = false;
private const bool x_defaultIsUniqueKey = false;
private const SortOrder x_defaultColumnSortOrder = SortOrder.Unspecified;
private const int x_defaultSortOrdinal = -1;
private const SqlCompareOptions x_eDefaultStringCompareOptions = SqlCompareOptions.IgnoreCase
| SqlCompareOptions.IgnoreKanaType | SqlCompareOptions.IgnoreWidth;
// scalar types constructor without tvp extended properties
public SqlMetaData(String name, SqlDbType dbType) {
Construct(name, dbType, x_defaultUseServerDefault,
x_defaultIsUniqueKey, x_defaultColumnSortOrder, x_defaultSortOrdinal);
}
// scalar types constructor
public SqlMetaData(String name, SqlDbType dbType, bool useServerDefault,
bool isUniqueKey, SortOrder columnSortOrder, int sortOrdinal) {
Construct(name, dbType, useServerDefault,
isUniqueKey, columnSortOrder, sortOrdinal);
}
// binary or string constructor with only max length
// (for string types, locale and compare options will be picked up from the thread.
public SqlMetaData(String name, SqlDbType dbType, long maxLength) {
Construct(name, dbType, maxLength, x_defaultUseServerDefault,
x_defaultIsUniqueKey, x_defaultColumnSortOrder, x_defaultSortOrdinal);
}
// binary or string constructor with only max length and tvp extended properties
// (for string types, locale and compare options will be picked up from the thread.
public SqlMetaData(String name, SqlDbType dbType, long maxLength, bool useServerDefault,
bool isUniqueKey, SortOrder columnSortOrder, int sortOrdinal) {
Construct(name, dbType, maxLength, useServerDefault,
isUniqueKey, columnSortOrder, sortOrdinal);
}
// udt ctor without tvp extended properties
public SqlMetaData(String name, SqlDbType dbType, Type userDefinedType) {
Construct(name, dbType, userDefinedType, null, x_defaultUseServerDefault,
x_defaultIsUniqueKey, x_defaultColumnSortOrder, x_defaultSortOrdinal);
}
// udt ctor without tvp extended properties
public SqlMetaData(String name, SqlDbType dbType, Type userDefinedType, string serverTypeName) {
Construct(name, dbType, userDefinedType, serverTypeName, x_defaultUseServerDefault,
x_defaultIsUniqueKey, x_defaultColumnSortOrder, x_defaultSortOrdinal);
}
// udt ctor
public SqlMetaData(String name, SqlDbType dbType, Type userDefinedType, string serverTypeName,
bool useServerDefault, bool isUniqueKey, SortOrder columnSortOrder, int sortOrdinal) {
Construct(name, dbType, userDefinedType, serverTypeName, useServerDefault,
isUniqueKey, columnSortOrder, sortOrdinal);
}
// decimal ctor without tvp extended properties
public SqlMetaData(String name, SqlDbType dbType, byte precision, byte scale) {
Construct(name, dbType, precision, scale, x_defaultUseServerDefault,
x_defaultIsUniqueKey, x_defaultColumnSortOrder, x_defaultSortOrdinal);
}
// decimal ctor
public SqlMetaData(string name, SqlDbType dbType, byte precision, byte scale, bool useServerDefault,
bool isUniqueKey, SortOrder columnSortOrder, int sortOrdinal) {
Construct(name, dbType, precision, scale, useServerDefault,
isUniqueKey, columnSortOrder, sortOrdinal);
}
// string type constructor with locale and compare options, no tvp extended properties
public SqlMetaData(String name, SqlDbType dbType, long maxLength, long locale,
SqlCompareOptions compareOptions) {
Construct(name, dbType, maxLength, locale, compareOptions, x_defaultUseServerDefault,
x_defaultIsUniqueKey, x_defaultColumnSortOrder, x_defaultSortOrdinal);
}
// string type constructor with locale and compare options
public SqlMetaData(String name, SqlDbType dbType, long maxLength, long locale,
SqlCompareOptions compareOptions, bool useServerDefault,
bool isUniqueKey, SortOrder columnSortOrder, int sortOrdinal) {
Construct(name, dbType, maxLength, locale, compareOptions, useServerDefault,
isUniqueKey, columnSortOrder, sortOrdinal);
}
// typed xml ctor
public SqlMetaData(String name, SqlDbType dbType, string database, string owningSchema,
string objectName, bool useServerDefault, bool isUniqueKey,
SortOrder columnSortOrder, int sortOrdinal) {
Construct(name, dbType, database, owningSchema, objectName, useServerDefault,
isUniqueKey, columnSortOrder, sortOrdinal);
}
// everything except xml schema and tvp properties ctor
public SqlMetaData(String name, SqlDbType dbType, long maxLength, byte precision,
byte scale, long locale, SqlCompareOptions compareOptions,
Type userDefinedType) :
this(name, dbType, maxLength, precision, scale, locale, compareOptions,
userDefinedType, x_defaultUseServerDefault, x_defaultIsUniqueKey,
x_defaultColumnSortOrder, x_defaultSortOrdinal) {
}
// everything except xml schema ctor
public SqlMetaData(String name, SqlDbType dbType, long maxLength, byte precision,
byte scale, long localeId, SqlCompareOptions compareOptions,
Type userDefinedType, bool useServerDefault,
bool isUniqueKey, SortOrder columnSortOrder, int sortOrdinal) {
switch (dbType) {
case SqlDbType.BigInt:
case SqlDbType.Image:
case SqlDbType.Timestamp:
case SqlDbType.Bit:
case SqlDbType.DateTime:
case SqlDbType.SmallDateTime:
case SqlDbType.Real:
case SqlDbType.Int:
case SqlDbType.Money:
case SqlDbType.SmallMoney:
case SqlDbType.Float:
case SqlDbType.UniqueIdentifier:
case SqlDbType.SmallInt:
case SqlDbType.TinyInt:
case SqlDbType.Xml:
case SqlDbType.Date:
Construct(name, dbType, useServerDefault, isUniqueKey, columnSortOrder, sortOrdinal);
break;
case SqlDbType.Binary:
case SqlDbType.VarBinary:
Construct(name, dbType, maxLength, useServerDefault, isUniqueKey, columnSortOrder, sortOrdinal);
break;
case SqlDbType.Char:
case SqlDbType.NChar:
case SqlDbType.NVarChar:
case SqlDbType.VarChar:
Construct(name, dbType, maxLength, localeId, compareOptions, useServerDefault, isUniqueKey, columnSortOrder, sortOrdinal);
break;
case SqlDbType.NText:
case SqlDbType.Text:
// SQLBU # : We should ignore user's max length and use Max instead to avoid exception
Construct(name, dbType, Max, localeId, compareOptions, useServerDefault, isUniqueKey, columnSortOrder, sortOrdinal);
break;
case SqlDbType.Decimal:
case SqlDbType.Time:
case SqlDbType.DateTime2:
case SqlDbType.DateTimeOffset:
Construct(name, dbType, precision, scale, useServerDefault, isUniqueKey, columnSortOrder, sortOrdinal);
break;
case SqlDbType.Variant:
Construct(name, dbType, useServerDefault, isUniqueKey, columnSortOrder, sortOrdinal);
break;
case SqlDbType.Udt:
Construct(name, dbType, userDefinedType, "", useServerDefault, isUniqueKey, columnSortOrder, sortOrdinal);
break;
default:
SQL.InvalidSqlDbTypeForConstructor(dbType);
break;
}
}
public SqlMetaData(String name, SqlDbType dbType, string database, string owningSchema, string objectName) {
Construct(name, dbType, database, owningSchema, objectName, x_defaultUseServerDefault, x_defaultIsUniqueKey,
x_defaultColumnSortOrder, x_defaultSortOrdinal);
}
// Most general constructor, should be able to intialize all SqlMetaData fields.(Used by SqlParameter)
internal SqlMetaData (String name,
SqlDbType sqlDBType,
long maxLength,
byte precision,
byte scale,
long localeId,
SqlCompareOptions compareOptions,
string xmlSchemaCollectionDatabase,
string xmlSchemaCollectionOwningSchema,
string xmlSchemaCollectionName,
bool partialLength,
Type udtType) {
AssertNameIsValid(name);
m_strName = name;
m_sqlDbType = sqlDBType;
m_lMaxLength = maxLength;
m_bPrecision = precision;
m_bScale = scale;
m_lLocale = localeId;
m_eCompareOptions = compareOptions;
m_XmlSchemaCollectionDatabase = xmlSchemaCollectionDatabase;
m_XmlSchemaCollectionOwningSchema = xmlSchemaCollectionOwningSchema;
m_XmlSchemaCollectionName = xmlSchemaCollectionName;
m_bPartialLength = partialLength;
m_udttype = udtType;
}
// Private constructor used to initialize default instance array elements.
// DO NOT EXPOSE OUTSIDE THIS CLASS! It performs no validation.
private SqlMetaData (String name,
SqlDbType sqlDbType,
long maxLength,
byte precision,
byte scale,
long localeId,
SqlCompareOptions compareOptions,
bool partialLength) {
AssertNameIsValid(name);
m_strName = name;
m_sqlDbType = sqlDbType;
m_lMaxLength = maxLength;
m_bPrecision = precision;
m_bScale = scale;
m_lLocale = localeId;
m_eCompareOptions = compareOptions;
m_bPartialLength = partialLength;
m_udttype = null;
}
public SqlCompareOptions CompareOptions {
get {
return m_eCompareOptions;
}
}
public DbType DbType {
get {
return sxm_rgSqlDbTypeToDbType[(int)m_sqlDbType];
}
}
public bool IsUniqueKey {
get {
return m_isUniqueKey;
}
}
public long LocaleId {
get{
return m_lLocale;
}
}
public static long Max {
get {
return x_lMax;
}
}
public long MaxLength {
get {
return m_lMaxLength;
}
}
public string Name {
get {
return m_strName;
}
}
public byte Precision {
get {
return m_bPrecision;
}
}
public byte Scale {
get {
return m_bScale;
}
}
public SortOrder SortOrder {
get {
return m_columnSortOrder;
}
}
public int SortOrdinal {
get {
return m_sortOrdinal;
}
}
public SqlDbType SqlDbType {
get {
return m_sqlDbType;
}
}
public Type Type {
get {
return m_udttype;
}
}
public string TypeName {
get {
if (m_serverTypeName != null) {
return m_serverTypeName;
}
else if (SqlDbType == SqlDbType.Udt) {
return UdtTypeName;
}
else {
return sxm_rgDefaults[(int)SqlDbType].Name;
}
}
}
internal string ServerTypeName {
get {
return m_serverTypeName;
}
}
public bool UseServerDefault {
get {
return m_useServerDefault;
}
}
public string XmlSchemaCollectionDatabase {
get {
return m_XmlSchemaCollectionDatabase;
}
}
public string XmlSchemaCollectionName {
get {
return m_XmlSchemaCollectionName;
}
}
public string XmlSchemaCollectionOwningSchema {
get {
return m_XmlSchemaCollectionOwningSchema;
}
}
internal bool IsPartialLength {
get {
return m_bPartialLength;
}
}
internal string UdtTypeName {
get{
if(SqlDbType != SqlDbType.Udt) {
return null;
}
else if (m_udttype == null) {
return null;
}
else {
return m_udttype.FullName;
}
}
}
// Construction for all types that do not have variable attributes
private void Construct(String name, SqlDbType dbType, bool useServerDefault,
bool isUniqueKey, SortOrder columnSortOrder, int sortOrdinal) {
AssertNameIsValid(name);
ValidateSortOrder(columnSortOrder, sortOrdinal);
// Check for absense of explicitly-allowed types to avoid unexpected additions when new types are added
if (!( SqlDbType.BigInt == dbType ||
SqlDbType.Bit == dbType ||
SqlDbType.DateTime == dbType ||
SqlDbType.Date == dbType ||
SqlDbType.DateTime2 == dbType ||
SqlDbType.DateTimeOffset == dbType ||
SqlDbType.Decimal == dbType ||
SqlDbType.Float == dbType ||
SqlDbType.Image == dbType ||
SqlDbType.Int == dbType ||
SqlDbType.Money == dbType ||
SqlDbType.NText == dbType ||
SqlDbType.Real == dbType ||
SqlDbType.SmallDateTime == dbType ||
SqlDbType.SmallInt == dbType ||
SqlDbType.SmallMoney == dbType ||
SqlDbType.Text == dbType ||
SqlDbType.Time == dbType ||
SqlDbType.Timestamp == dbType ||
SqlDbType.TinyInt == dbType ||
SqlDbType.UniqueIdentifier == dbType ||
SqlDbType.Variant == dbType ||
SqlDbType.Xml == dbType) )
throw SQL.InvalidSqlDbTypeForConstructor(dbType);
SetDefaultsForType( dbType );
if (SqlDbType.NText == dbType || SqlDbType.Text == dbType) {
m_lLocale = System.Globalization.CultureInfo.CurrentCulture.LCID;
}
m_strName = name;
m_useServerDefault = useServerDefault;
m_isUniqueKey = isUniqueKey;
m_columnSortOrder = columnSortOrder;
m_sortOrdinal = sortOrdinal;
}
// Construction for all types that vary by user-specified length (not Udts)
private void Construct(String name, SqlDbType dbType, long maxLength, bool useServerDefault,
bool isUniqueKey, SortOrder columnSortOrder, int sortOrdinal) {
AssertNameIsValid(name);
ValidateSortOrder(columnSortOrder, sortOrdinal);
long lLocale = 0;
if (SqlDbType.Char == dbType) {
if (maxLength > x_lServerMaxANSI || maxLength < 0)
throw ADP.Argument(Res.GetString(Res.ADP_InvalidDataLength2, maxLength.ToString(CultureInfo.InvariantCulture)), "maxLength");
lLocale = System.Globalization.CultureInfo.CurrentCulture.LCID;
}
else if (SqlDbType.VarChar == dbType) {
if ((maxLength > x_lServerMaxANSI || maxLength < 0) && maxLength != Max)
throw ADP.Argument(Res.GetString(Res.ADP_InvalidDataLength2, maxLength.ToString(CultureInfo.InvariantCulture)), "maxLength");
lLocale = System.Globalization.CultureInfo.CurrentCulture.LCID;
}
else if (SqlDbType.NChar == dbType) {
if (maxLength > x_lServerMaxUnicode || maxLength < 0)
throw ADP.Argument(Res.GetString(Res.ADP_InvalidDataLength2, maxLength.ToString(CultureInfo.InvariantCulture)), "maxLength");
lLocale = System.Globalization.CultureInfo.CurrentCulture.LCID;
}
else if (SqlDbType.NVarChar == dbType) {
if ((maxLength > x_lServerMaxUnicode || maxLength < 0) && maxLength != Max)
throw ADP.Argument(Res.GetString(Res.ADP_InvalidDataLength2, maxLength.ToString(CultureInfo.InvariantCulture)), "maxLength");
lLocale = System.Globalization.CultureInfo.CurrentCulture.LCID;
}
else if (SqlDbType.NText == dbType || SqlDbType.Text == dbType) {
// old-style lobs only allowed with Max length
if (SqlMetaData.Max != maxLength)
throw ADP.Argument(Res.GetString(Res.ADP_InvalidDataLength2, maxLength.ToString(CultureInfo.InvariantCulture)), "maxLength");
lLocale = System.Globalization.CultureInfo.CurrentCulture.LCID;
}
else if (SqlDbType.Binary == dbType) {
if (maxLength > x_lServerMaxBinary || maxLength < 0)
throw ADP.Argument(Res.GetString(Res.ADP_InvalidDataLength2, maxLength.ToString(CultureInfo.InvariantCulture)), "maxLength");
}
else if (SqlDbType.VarBinary == dbType) {
if ((maxLength > x_lServerMaxBinary || maxLength < 0) && maxLength != Max)
throw ADP.Argument(Res.GetString(Res.ADP_InvalidDataLength2, maxLength.ToString(CultureInfo.InvariantCulture)), "maxLength");
}
else if (SqlDbType.Image == dbType) {
// old-style lobs only allowed with Max length
if (SqlMetaData.Max != maxLength)
throw ADP.Argument(Res.GetString(Res.ADP_InvalidDataLength2, maxLength.ToString(CultureInfo.InvariantCulture)), "maxLength");
}
else
throw SQL.InvalidSqlDbTypeForConstructor(dbType);
SetDefaultsForType( dbType );
m_strName = name;
m_lMaxLength = maxLength;
m_lLocale = lLocale;
m_useServerDefault = useServerDefault;
m_isUniqueKey = isUniqueKey;
m_columnSortOrder = columnSortOrder;
m_sortOrdinal = sortOrdinal;
}
// Construction for string types with specified locale/compare options
private void Construct(String name,
SqlDbType dbType,
long maxLength,
long locale,
SqlCompareOptions compareOptions,
bool useServerDefault,
bool isUniqueKey,
SortOrder columnSortOrder,
int sortOrdinal) {
AssertNameIsValid(name);
ValidateSortOrder(columnSortOrder, sortOrdinal);
// Validate type and max length.
if (SqlDbType.Char == dbType)
{
if (maxLength > x_lServerMaxANSI || maxLength < 0)
throw ADP.Argument(Res.GetString(Res.ADP_InvalidDataLength2, maxLength.ToString(CultureInfo.InvariantCulture)), "maxLength");
}
else if (SqlDbType.VarChar == dbType)
{
if ((maxLength > x_lServerMaxANSI || maxLength < 0) && maxLength != Max)
throw ADP.Argument(Res.GetString(Res.ADP_InvalidDataLength2, maxLength.ToString(CultureInfo.InvariantCulture)), "maxLength");
}
else if (SqlDbType.NChar == dbType)
{
if (maxLength > x_lServerMaxUnicode || maxLength < 0)
throw ADP.Argument(Res.GetString(Res.ADP_InvalidDataLength2, maxLength.ToString(CultureInfo.InvariantCulture)), "maxLength");
}
else if (SqlDbType.NVarChar == dbType)
{
if ((maxLength > x_lServerMaxUnicode || maxLength < 0) && maxLength != Max)
throw ADP.Argument(Res.GetString(Res.ADP_InvalidDataLength2, maxLength.ToString(CultureInfo.InvariantCulture)), "maxLength");
}
else if (SqlDbType.NText == dbType || SqlDbType.Text == dbType)
{
// old-style lobs only allowed with Max length
if (SqlMetaData.Max != maxLength)
throw ADP.Argument(Res.GetString(Res.ADP_InvalidDataLength2, maxLength.ToString(CultureInfo.InvariantCulture)), "maxLength");
}
else
throw SQL.InvalidSqlDbTypeForConstructor(dbType);
// Validate locale?
// Validate compare options
// Binary sort must be by itself.
// Nothing else but the Ignore bits is allowed.
if (SqlCompareOptions.BinarySort != compareOptions &&
0 != (~((int)SqlCompareOptions.IgnoreCase | (int)SqlCompareOptions.IgnoreNonSpace |
(int)SqlCompareOptions.IgnoreKanaType | (int)SqlCompareOptions.IgnoreWidth) &
(int)compareOptions))
throw ADP.InvalidEnumerationValue(typeof(SqlCompareOptions), (int)compareOptions);
SetDefaultsForType( dbType );
m_strName = name;
m_lMaxLength = maxLength;
m_lLocale = locale;
m_eCompareOptions = compareOptions;
m_useServerDefault = useServerDefault;
m_isUniqueKey = isUniqueKey;
m_columnSortOrder = columnSortOrder;
m_sortOrdinal = sortOrdinal;
}
private static byte[] __maxLenFromPrecision = new byte[] {5,5,5,5,5,5,5,5,5,9,9,9,9,9,
9,9,9,9,9,13,13,13,13,13,13,13,13,13,17,17,17,17,17,17,17,17,17,17};
private const byte MaxTimeScale = 7;
private static byte[] __maxVarTimeLenOffsetFromScale = new byte[] { 2, 2, 2, 1, 1, 0, 0, 0 };
// Construction for Decimal type and new Katmai Date/Time types
private void Construct( String name, SqlDbType dbType, byte precision, byte scale, bool useServerDefault,
bool isUniqueKey, SortOrder columnSortOrder, int sortOrdinal ) {
AssertNameIsValid(name);
ValidateSortOrder(columnSortOrder, sortOrdinal);
if (SqlDbType.Decimal == dbType) {
if (precision > SqlDecimal.MaxPrecision || scale > precision)
throw SQL.PrecisionValueOutOfRange(precision);
if (scale > SqlDecimal.MaxScale)
throw SQL.ScaleValueOutOfRange(scale);
} else if (SqlDbType.Time == dbType || SqlDbType.DateTime2 == dbType || SqlDbType.DateTimeOffset == dbType) {
if (scale > MaxTimeScale) {
throw SQL.TimeScaleValueOutOfRange(scale);
}
} else {
throw SQL.InvalidSqlDbTypeForConstructor(dbType);
}
SetDefaultsForType(dbType);
m_strName = name;
m_bPrecision = precision;
m_bScale = scale;
if (SqlDbType.Decimal == dbType) {
m_lMaxLength = __maxLenFromPrecision[precision - 1];
} else {
m_lMaxLength -= __maxVarTimeLenOffsetFromScale[scale];
}
m_useServerDefault = useServerDefault;
m_isUniqueKey = isUniqueKey;
m_columnSortOrder = columnSortOrder;
m_sortOrdinal = sortOrdinal;
}
// Construction for Udt type
private void Construct(String name, SqlDbType dbType, Type userDefinedType, string serverTypeName, bool useServerDefault,
bool isUniqueKey, SortOrder columnSortOrder, int sortOrdinal) {
AssertNameIsValid(name);
ValidateSortOrder(columnSortOrder, sortOrdinal);
if (SqlDbType.Udt != dbType)
throw SQL.InvalidSqlDbTypeForConstructor(dbType);
if (null == userDefinedType)
throw ADP.ArgumentNull("userDefinedType");
SetDefaultsForType(SqlDbType.Udt);
m_strName = name;
m_lMaxLength = SerializationHelperSql9.GetUdtMaxLength( userDefinedType );
m_udttype = userDefinedType;
m_serverTypeName = serverTypeName;
m_useServerDefault = useServerDefault;
m_isUniqueKey = isUniqueKey;
m_columnSortOrder = columnSortOrder;
m_sortOrdinal = sortOrdinal;
}
// Construction for Xml type
private void Construct(String name, SqlDbType dbType, string database, string owningSchema,
string objectName, bool useServerDefault, bool isUniqueKey, SortOrder columnSortOrder,
int sortOrdinal) {
AssertNameIsValid(name);
ValidateSortOrder(columnSortOrder, sortOrdinal);
if (SqlDbType.Xml != dbType)
throw SQL.InvalidSqlDbTypeForConstructor(dbType);
if (null != database || null != owningSchema) {
if (null == objectName) {
throw ADP.ArgumentNull("objectName");
}
}
SetDefaultsForType(SqlDbType.Xml);
m_strName = name;
m_XmlSchemaCollectionDatabase = database;
m_XmlSchemaCollectionOwningSchema = owningSchema;
m_XmlSchemaCollectionName = objectName;
m_useServerDefault = useServerDefault;
m_isUniqueKey = isUniqueKey;
m_columnSortOrder = columnSortOrder;
m_sortOrdinal = sortOrdinal;
}
private void AssertNameIsValid(string name) {
if (null == name)
throw ADP.ArgumentNull("name");
if (Microsoft.SqlServer.Server.SmiMetaData.MaxNameLength < name.Length)
throw SQL.NameTooLong("name");
}
private void ValidateSortOrder(SortOrder columnSortOrder, int sortOrdinal) {
// Check that sort order is valid enum value.
if (SortOrder.Unspecified != columnSortOrder &&
SortOrder.Ascending != columnSortOrder &&
SortOrder.Descending != columnSortOrder) {
throw SQL.InvalidSortOrder(columnSortOrder);
}
// Must specify both sort order and ordinal, or neither
if ( (SortOrder.Unspecified == columnSortOrder) != (x_defaultSortOrdinal == sortOrdinal)) {
throw SQL.MustSpecifyBothSortOrderAndOrdinal(columnSortOrder, sortOrdinal);
}
}
public Int16 Adjust(Int16 value) {
if (SqlDbType.SmallInt != SqlDbType)
ThrowInvalidType();
return value;
}
public Int32 Adjust(Int32 value) {
if (SqlDbType.Int != SqlDbType)
ThrowInvalidType();
return value;
}
public Int64 Adjust(Int64 value) {
if (SqlDbType.BigInt != SqlDbType)
ThrowInvalidType();
return value;
}
public float Adjust(float value) {
if (SqlDbType.Real != SqlDbType)
ThrowInvalidType();
return value;
}
public double Adjust(double value) {
if (SqlDbType.Float != SqlDbType)
ThrowInvalidType();
return value;
}
public string Adjust(string value) {
if (SqlDbType.Char == SqlDbType || SqlDbType.NChar == SqlDbType) {
//DBG.Assert(Max!=MaxLength, "SqlMetaData.Adjust(string): Fixed-length type with Max length!");
// Don't pad null values
if (null != value) {
// Pad if necessary
if (value.Length < MaxLength)
value = value.PadRight((int)MaxLength);
}
}
else if (SqlDbType.VarChar != SqlDbType &&
SqlDbType.NVarChar != SqlDbType &&
SqlDbType.Text != SqlDbType &&
SqlDbType.NText != SqlDbType) {
ThrowInvalidType();
}
// Handle null values after type check
if (null == value) {
return null;
}
if (value.Length > MaxLength && Max != MaxLength)
value = value.Remove((int)MaxLength, (int)(value.Length - MaxLength));
return value;
}
public decimal Adjust(decimal value) {
if (SqlDbType.Decimal != SqlDbType &&
SqlDbType.Money != SqlDbType &&
SqlDbType.SmallMoney != SqlDbType) {
ThrowInvalidType();
}
if (SqlDbType.Decimal != SqlDbType) {
VerifyMoneyRange(new SqlMoney(value));
return value;
}
else {
SqlDecimal sdValue = InternalAdjustSqlDecimal(new SqlDecimal(value));
return sdValue.Value;
}
}
public DateTime Adjust(DateTime value) {
if (SqlDbType.DateTime == SqlDbType || SqlDbType.SmallDateTime == SqlDbType) {
VerifyDateTimeRange(value);
} else if (SqlDbType.DateTime2 == SqlDbType) {
return new DateTime(InternalAdjustTimeTicks(value.Ticks));
} else if (SqlDbType.Date == SqlDbType) {
return value.Date;
} else {
ThrowInvalidType();
}
return value;
}
public Guid Adjust(Guid value) {
if (SqlDbType.UniqueIdentifier != SqlDbType)
ThrowInvalidType();
return value;
}
public SqlBoolean Adjust(SqlBoolean value) {
if (SqlDbType.Bit != SqlDbType)
ThrowInvalidType();
return value;
}
public SqlByte Adjust(SqlByte value) {
if (SqlDbType.TinyInt != SqlDbType)
ThrowInvalidType();
return value;
}
public SqlInt16 Adjust(SqlInt16 value) {
if (SqlDbType.SmallInt != SqlDbType)
ThrowInvalidType();
return value;
}
public SqlInt32 Adjust(SqlInt32 value) {
if (SqlDbType.Int != SqlDbType)
ThrowInvalidType();
return value;
}
public SqlInt64 Adjust(SqlInt64 value) {
if (SqlDbType.BigInt != SqlDbType)
ThrowInvalidType();
return value;
}
public SqlSingle Adjust(SqlSingle value) {
if (SqlDbType.Real != SqlDbType)
ThrowInvalidType();
return value;
}
public SqlDouble Adjust(SqlDouble value) {
if (SqlDbType.Float != SqlDbType)
ThrowInvalidType();
return value;
}
public SqlMoney Adjust(SqlMoney value) {
if (SqlDbType.Money != SqlDbType &&
SqlDbType.SmallMoney != SqlDbType)
ThrowInvalidType();
if (!value.IsNull)
VerifyMoneyRange(value);
return value;
}
public SqlDateTime Adjust(SqlDateTime value) {
if (SqlDbType.DateTime != SqlDbType &&
SqlDbType.SmallDateTime != SqlDbType)
ThrowInvalidType();
if (!value.IsNull)
VerifyDateTimeRange(value.Value);
return value;
}
public SqlDecimal Adjust(SqlDecimal value) {
if (SqlDbType.Decimal != SqlDbType)
ThrowInvalidType();
return InternalAdjustSqlDecimal(value);
}
public SqlString Adjust(SqlString value) {
if (SqlDbType.Char == SqlDbType || SqlDbType.NChar == SqlDbType)
{
//DBG.Assert(Max!=MaxLength, "SqlMetaData.Adjust(SqlString): Fixed-length type with Max length!");
// Don't pad null values
if (!value.IsNull)
{
// Pad fixed-length types
if (value.Value.Length < MaxLength)
return new SqlString(value.Value.PadRight((int)MaxLength));
}
}
else if (SqlDbType.VarChar != SqlDbType && SqlDbType.NVarChar != SqlDbType &&
SqlDbType.Text != SqlDbType && SqlDbType.NText != SqlDbType)
ThrowInvalidType();
// Handle null values after type check
if (value.IsNull)
{
return value;
}
// trim all types
if (value.Value.Length > MaxLength && Max != MaxLength)
value = new SqlString(value.Value.Remove((int)MaxLength, (int)(value.Value.Length - MaxLength)));
return value;
}
public SqlBinary Adjust(SqlBinary value) {
if (SqlDbType.Binary == SqlDbType ||
SqlDbType.Timestamp == SqlDbType) {
if (!value.IsNull) {
// Pad fixed-length types
if (value.Length < MaxLength) {
byte[] rgbValue = value.Value;
byte[] rgbNewValue = new byte[ MaxLength ];
Array.Copy(rgbValue, rgbNewValue, rgbValue.Length);
Array.Clear(rgbNewValue, rgbValue.Length, rgbNewValue.Length - rgbValue.Length);
return new SqlBinary(rgbNewValue);
}
}
}
else if (SqlDbType.VarBinary != SqlDbType &&
SqlDbType.Image != SqlDbType)
ThrowInvalidType();
// Handle null values
if (value.IsNull) {
return value;
}
// trim all types
if (value.Length > MaxLength && Max != MaxLength) {
byte[] rgbValue = value.Value;
byte[] rgbNewValue = new byte[ MaxLength ];
Array.Copy(rgbValue, rgbNewValue, (int)MaxLength);
value = new SqlBinary(rgbNewValue);
}
return value;
}
public SqlGuid Adjust(SqlGuid value) {
if (SqlDbType.UniqueIdentifier != SqlDbType)
ThrowInvalidType();
return value;
}
public SqlChars Adjust(SqlChars value) {
if (SqlDbType.Char == SqlDbType || SqlDbType.NChar == SqlDbType) {
//DBG.Assert(Max!=MaxLength, "SqlMetaData.Adjust(SqlChars): Fixed-length type with Max length!");
// Don't pad null values
if (null != value && !value.IsNull) {
// Pad fixed-length types
long oldLength = value.Length;
if (oldLength < MaxLength) {
// Make sure buffer is long enough
if (value.MaxLength < MaxLength) {
char[] rgchNew = new char[ (int)MaxLength ];
Array.Copy(value.Buffer, rgchNew, (int)oldLength);
value = new SqlChars(rgchNew);
}
// pad extra space
char[] rgchTemp = value.Buffer;
for(long i=oldLength; i<MaxLength; i++)
rgchTemp[i] = ' ';
value.SetLength(MaxLength);
return value;
}
}
}
else if ( SqlDbType.VarChar != SqlDbType && SqlDbType.NVarChar != SqlDbType &&
SqlDbType.Text != SqlDbType && SqlDbType.NText != SqlDbType)
ThrowInvalidType();
// Handle null values after type check.
if (null == value || value.IsNull) {
return value;
}
// trim all types
if (value.Length > MaxLength && Max != MaxLength)
value.SetLength(MaxLength);
return value;
}
public SqlBytes Adjust(SqlBytes value) {
if (SqlDbType.Binary == SqlDbType || SqlDbType.Timestamp == SqlDbType) {
//DBG.Assert(Max!=MaxLength, "SqlMetaData.Adjust(SqlBytes): Fixed-length type with Max length!");
// Don't pad null values
if (null != value && !value.IsNull)
{
// Pad fixed-length types
int oldLength = (int) value.Length;
if (oldLength < MaxLength)
{
// Make sure buffer is long enough
if (value.MaxLength < MaxLength)
{
byte[] rgbNew = new byte[ MaxLength ];
Array.Copy(value.Buffer, rgbNew, (int)oldLength);
value = new SqlBytes(rgbNew);
}
// pad extra space
byte[] rgbTemp = value.Buffer;
Array.Clear(rgbTemp, oldLength, rgbTemp.Length - oldLength);
value.SetLength(MaxLength);
return value;
}
}
}
else if (SqlDbType.VarBinary != SqlDbType &&
SqlDbType.Image != SqlDbType)
ThrowInvalidType();
// Handle null values after type check.
if (null == value || value.IsNull) {
return value;
}
// trim all types
if (value.Length > MaxLength && Max != MaxLength)
value.SetLength(MaxLength);
return value;
}
public SqlXml Adjust(SqlXml value) {
if (SqlDbType.Xml != SqlDbType)
ThrowInvalidType();
return value;
}
public TimeSpan Adjust(TimeSpan value) {
if (SqlDbType.Time != SqlDbType)
ThrowInvalidType();
VerifyTimeRange(value);
return new TimeSpan(InternalAdjustTimeTicks(value.Ticks));
}
public DateTimeOffset Adjust(DateTimeOffset value) {
if (SqlDbType.DateTimeOffset != SqlDbType)
ThrowInvalidType();
return new DateTimeOffset(InternalAdjustTimeTicks(value.Ticks), value.Offset);
}
public object Adjust(object value) {
// Pass null references through
if (null == value)
return null;
Type dataType = value.GetType();
switch (Type.GetTypeCode(dataType)) {
case TypeCode.Boolean: value = this.Adjust((Boolean)value); break;
case TypeCode.Byte: value = this.Adjust((Byte)value); break;
case TypeCode.Char: value = this.Adjust((Char)value); break;
case TypeCode.DateTime: value = this.Adjust((DateTime)value); break;
case TypeCode.DBNull: /* DBNull passes through as is for all types */ break;
case TypeCode.Decimal: value = this.Adjust((Decimal)value); break;
case TypeCode.Double: value = this.Adjust((Double)value); break;
case TypeCode.Empty: throw ADP.InvalidDataType(TypeCode.Empty);
case TypeCode.Int16: value = this.Adjust((Int16)value); break;
case TypeCode.Int32: value = this.Adjust((Int32)value); break;
case TypeCode.Int64: value = this.Adjust((Int64)value); break;
case TypeCode.SByte: throw ADP.InvalidDataType(TypeCode.SByte);
case TypeCode.Single: value = this.Adjust((Single)value); break;
case TypeCode.String: value = this.Adjust((String)value); break;
case TypeCode.UInt16: throw ADP.InvalidDataType(TypeCode.UInt16);
case TypeCode.UInt32: throw ADP.InvalidDataType(TypeCode.UInt32);
case TypeCode.UInt64: throw ADP.InvalidDataType(TypeCode.UInt64);
case TypeCode.Object:
if (dataType == typeof(System.Byte[]))
value = this.Adjust((System.Byte[])value);
else if (dataType == typeof(System.Char[]))
value = this.Adjust((System.Char[])value);
else if (dataType == typeof(System.Guid))
value = this.Adjust((System.Guid)value);
else if (dataType == typeof(System.Object)) {
//
throw ADP.InvalidDataType(TypeCode.UInt64);
}
else if (dataType == typeof(SqlBinary))
value = this.Adjust((SqlBinary)value);
else if (dataType == typeof(SqlBoolean))
value = this.Adjust((SqlBoolean)value);
else if (dataType == typeof(SqlByte))
value = this.Adjust((SqlByte)value);
else if (dataType == typeof(SqlDateTime))
value = this.Adjust((SqlDateTime)value);
else if (dataType == typeof(SqlDouble))
value = this.Adjust((SqlDouble)value);
else if (dataType == typeof(SqlGuid))
value = this.Adjust((SqlGuid)value);
else if (dataType == typeof(SqlInt16))
value = this.Adjust((SqlInt16)value);
else if (dataType == typeof(SqlInt32))
value = this.Adjust((SqlInt32)value);
else if (dataType == typeof(SqlInt64))
value = this.Adjust((SqlInt64)value);
else if (dataType == typeof(SqlMoney))
value = this.Adjust((SqlMoney)value);
else if (dataType == typeof(SqlDecimal))
value = this.Adjust((SqlDecimal)value);
else if (dataType == typeof(SqlSingle))
value = this.Adjust((SqlSingle)value);
else if (dataType == typeof(SqlString))
value = this.Adjust((SqlString)value);
else if (dataType == typeof(SqlChars))
value = this.Adjust((SqlChars)value);
else if (dataType == typeof(SqlBytes))
value = this.Adjust((SqlBytes)value);
else if (dataType == typeof(SqlXml))
value = this.Adjust((SqlXml)value);
else if (dataType == typeof(TimeSpan))
value = this.Adjust((TimeSpan)value);
else if (dataType == typeof(DateTimeOffset))
value = this.Adjust((DateTimeOffset)value);
else {
// Handle UDTs?
throw ADP.UnknownDataType(dataType);
}
break;
default: throw ADP.UnknownDataTypeCode(dataType, Type.GetTypeCode(dataType));
}
return value;
}
public static SqlMetaData InferFromValue(object value, String name) {
if (value == null)
throw ADP.ArgumentNull("value");
SqlMetaData smd = null;
Type dataType = value.GetType();
switch (Type.GetTypeCode(dataType))
{
case TypeCode.Boolean: smd = new SqlMetaData(name, SqlDbType.Bit); break;
case TypeCode.Byte: smd = new SqlMetaData(name, SqlDbType.TinyInt); break;
case TypeCode.Char: smd = new SqlMetaData(name, SqlDbType.NVarChar, 1 ); break;
case TypeCode.DateTime: smd = new SqlMetaData(name, SqlDbType.DateTime); break;
case TypeCode.DBNull: throw ADP.InvalidDataType(TypeCode.DBNull);
case TypeCode.Decimal:
{ // Add brackets in order to contain scope declare local variable "sd"
// use logic inside SqlDecimal to infer precision and scale.
SqlDecimal sd = new SqlDecimal((Decimal)value);
smd = new SqlMetaData(name, SqlDbType.Decimal, sd.Precision, sd.Scale);
}
break;
case TypeCode.Double: smd = new SqlMetaData(name, SqlDbType.Float); break;
case TypeCode.Empty: throw ADP.InvalidDataType(TypeCode.Empty);
case TypeCode.Int16: smd = new SqlMetaData(name, SqlDbType.SmallInt); break;
case TypeCode.Int32: smd = new SqlMetaData(name, SqlDbType.Int); break;
case TypeCode.Int64: smd = new SqlMetaData(name, SqlDbType.BigInt); break;
case TypeCode.SByte: throw ADP.InvalidDataType(TypeCode.SByte);
case TypeCode.Single: smd = new SqlMetaData(name, SqlDbType.Real); break;
case TypeCode.String:
{
long maxLen = ((String)value).Length;
if (maxLen < 1) maxLen = 1;
if (x_lServerMaxUnicode < maxLen)
maxLen = Max;
smd = new SqlMetaData(name, SqlDbType.NVarChar, maxLen);
}
break;
case TypeCode.UInt16: throw ADP.InvalidDataType(TypeCode.UInt16);
case TypeCode.UInt32: throw ADP.InvalidDataType(TypeCode.UInt32);
case TypeCode.UInt64: throw ADP.InvalidDataType(TypeCode.UInt64);
case TypeCode.Object:
if (dataType == typeof(System.Byte[]))
{
long maxLen = ((System.Byte[])value).Length;
if (maxLen < 1) maxLen = 1;
if (x_lServerMaxBinary < maxLen)
maxLen = Max;
smd = new SqlMetaData(name, SqlDbType.VarBinary, maxLen);
}
else if (dataType == typeof(System.Char[]))
{
long maxLen = ((System.Char[])value).Length;
if (maxLen < 1) maxLen = 1;
if (x_lServerMaxUnicode < maxLen)
maxLen = Max;
smd = new SqlMetaData(name, SqlDbType.NVarChar, maxLen);
}
else if (dataType == typeof(System.Guid))
smd = new SqlMetaData(name, SqlDbType.UniqueIdentifier);
else if (dataType == typeof(System.Object))
smd = new SqlMetaData(name, SqlDbType.Variant);
else if (dataType == typeof(SqlBinary))
{
long maxLen;
SqlBinary sb = ((SqlBinary) value);
if (!sb.IsNull)
{
maxLen = sb.Length;
if (maxLen < 1) maxLen = 1;
if (x_lServerMaxBinary < maxLen)
maxLen = Max;
}
else
maxLen = sxm_rgDefaults[(int)SqlDbType.VarBinary].MaxLength;
smd = new SqlMetaData(name, SqlDbType.VarBinary, maxLen);
}
else if (dataType == typeof(SqlBoolean))
smd = new SqlMetaData(name, SqlDbType.Bit);
else if (dataType == typeof(SqlByte))
smd = new SqlMetaData(name, SqlDbType.TinyInt);
else if (dataType == typeof(SqlDateTime))
smd = new SqlMetaData(name, SqlDbType.DateTime);
else if (dataType == typeof(SqlDouble))
smd = new SqlMetaData(name, SqlDbType.Float);
else if (dataType == typeof(SqlGuid))
smd = new SqlMetaData(name, SqlDbType.UniqueIdentifier);
else if (dataType == typeof(SqlInt16))
smd = new SqlMetaData(name, SqlDbType.SmallInt);
else if (dataType == typeof(SqlInt32))
smd = new SqlMetaData(name, SqlDbType.Int);
else if (dataType == typeof(SqlInt64))
smd = new SqlMetaData(name, SqlDbType.BigInt);
else if (dataType == typeof(SqlMoney))
smd = new SqlMetaData(name, SqlDbType.Money);
else if (dataType == typeof(SqlDecimal))
{
byte bPrec;
byte scale;
SqlDecimal sd = (SqlDecimal) value;
if (!sd.IsNull)
{
bPrec = sd.Precision;
scale = sd.Scale;
}
else
{
bPrec = sxm_rgDefaults[(int)SqlDbType.Decimal].Precision;
scale = sxm_rgDefaults[(int)SqlDbType.Decimal].Scale;
}
smd = new SqlMetaData(name, SqlDbType.Decimal, bPrec, scale);
}
else if (dataType == typeof(SqlSingle))
smd = new SqlMetaData(name, SqlDbType.Real);
else if (dataType == typeof(SqlString))
{
SqlString ss = (SqlString)value;
if (!ss.IsNull)
{
long maxLen = ss.Value.Length;
if (maxLen < 1) maxLen = 1;
if (maxLen > x_lServerMaxUnicode)
maxLen = Max;
smd = new SqlMetaData(name, SqlDbType.NVarChar, maxLen, ss.LCID, ss.SqlCompareOptions);
}
else
{
smd = new SqlMetaData(name, SqlDbType.NVarChar, sxm_rgDefaults[(int)SqlDbType.NVarChar].MaxLength);
}
}
else if (dataType == typeof(SqlChars))
{
long maxLen;
SqlChars sch = (SqlChars)value;
if (!sch.IsNull)
{
maxLen = sch.Length;
if (maxLen < 1) maxLen = 1;
if (maxLen > x_lServerMaxUnicode)
maxLen = Max;
}
else
maxLen = sxm_rgDefaults[(int)SqlDbType.NVarChar].MaxLength;
smd = new SqlMetaData(name, SqlDbType.NVarChar, maxLen);
}
else if (dataType == typeof(SqlBytes))
{
long maxLen;
SqlBytes sb = (SqlBytes)value;
if (!sb.IsNull)
{
maxLen = sb.Length;
if (maxLen < 1) maxLen = 1;
else if (x_lServerMaxBinary < maxLen) maxLen = Max;
}
else
maxLen = sxm_rgDefaults[(int)SqlDbType.VarBinary].MaxLength;
smd = new SqlMetaData(name, SqlDbType.VarBinary, maxLen);
}
else if (dataType == typeof(SqlXml))
smd = new SqlMetaData(name, SqlDbType.Xml);
else if (dataType == typeof(TimeSpan))
smd = new SqlMetaData(name, SqlDbType.Time, 0, InferScaleFromTimeTicks(((TimeSpan)value).Ticks));
else if (dataType == typeof(DateTimeOffset))
smd = new SqlMetaData(name, SqlDbType.DateTimeOffset, 0, InferScaleFromTimeTicks(((DateTimeOffset)value).Ticks));
else
throw ADP.UnknownDataType(dataType);
break;
default: throw ADP.UnknownDataTypeCode(dataType, Type.GetTypeCode(dataType));
}
return smd;
}
public bool Adjust(bool value) {
if (SqlDbType.Bit != SqlDbType)
ThrowInvalidType();
return value;
}
public byte Adjust(byte value) {
if (SqlDbType.TinyInt != SqlDbType)
ThrowInvalidType();
return value;
}
public byte[] Adjust(byte[] value) {
if (SqlDbType.Binary == SqlDbType || SqlDbType.Timestamp == SqlDbType)
{
//DBG.Assert(Max!=MaxLength, "SqlMetaData.Adjust(byte[]): Fixed-length type with Max length!");
// Don't pad null values
if (null != value)
{
// Pad fixed-length types
if (value.Length < MaxLength)
{
byte[] rgbNewValue = new byte[ MaxLength ];
Array.Copy(value, rgbNewValue, value.Length);
Array.Clear(rgbNewValue, value.Length, (int) rgbNewValue.Length - value.Length);
return rgbNewValue;
}
}
}
else if (SqlDbType.VarBinary != SqlDbType &&
SqlDbType.Image != SqlDbType)
ThrowInvalidType();
// Handle null values after type check
if (null == value)
{
return null;
}
// trim all types
if (value.Length > MaxLength && Max != MaxLength)
{
byte[] rgbNewValue = new byte[ MaxLength];
Array.Copy(value, rgbNewValue, (int)MaxLength);
value = rgbNewValue;
}
return value;
}
public char Adjust(char value)
{
if (SqlDbType.Char == SqlDbType || SqlDbType.NChar == SqlDbType)
{
if (1 != MaxLength)
ThrowInvalidType();
}
else if ( (1 > MaxLength) || // char must have max length of at least 1
(SqlDbType.VarChar != SqlDbType && SqlDbType.NVarChar != SqlDbType &&
SqlDbType.Text != SqlDbType && SqlDbType.NText != SqlDbType)
)
ThrowInvalidType();
return value;
}
public char[] Adjust(char[] value)
{
if (SqlDbType.Char == SqlDbType || SqlDbType.NChar == SqlDbType)
{
//DBG.Assert(Max!=MaxLength, "SqlMetaData.Adjust(byte[]): Fixed-length type with Max length!");
// Don't pad null values
if (null != value)
{
// Pad fixed-length types
long oldLength = value.Length;
if (oldLength < MaxLength)
{
char[] rgchNew = new char[ (int)MaxLength ];
Array.Copy(value, rgchNew, (int)oldLength);
// pad extra space
for(long i=oldLength; i<rgchNew.Length; i++)
rgchNew[i] = ' ';
return rgchNew;
}
}
}
else if ( SqlDbType.VarChar != SqlDbType && SqlDbType.NVarChar != SqlDbType &&
SqlDbType.Text != SqlDbType && SqlDbType.NText != SqlDbType)
ThrowInvalidType();
// Handle null values after type check
if (null == value)
{
return null;
}
// trim all types
if (value.Length > MaxLength && Max != MaxLength)
{
char[] rgchNewValue = new char[ MaxLength ];
Array.Copy(value, rgchNewValue, (int)MaxLength);
value = rgchNewValue;
}
return value;
}
internal static SqlMetaData GetPartialLengthMetaData(SqlMetaData md) {
if (md.IsPartialLength == true) {
return md;
}
if (md.SqlDbType == SqlDbType.Xml)
ThrowInvalidType(); //Xml should always have IsPartialLength = true
if (md.SqlDbType == SqlDbType.NVarChar || md.SqlDbType == SqlDbType.VarChar ||
md.SqlDbType == SqlDbType.VarBinary) {
SqlMetaData mdnew = new SqlMetaData(md.Name, md.SqlDbType, SqlMetaData.Max, 0, 0, md.LocaleId,
md.CompareOptions, null, null, null, true, md.Type);
return mdnew;
}
else
return md;
}
private static void ThrowInvalidType() {
throw ADP.InvalidMetaDataValue();
}
// Hard coding smalldatetime limits...
private static readonly DateTime x_dtSmallMax = new DateTime(2079, 06, 06, 23, 59, 29, 998);
private static readonly DateTime x_dtSmallMin = new DateTime(1899, 12, 31, 23, 59, 29, 999);
void VerifyDateTimeRange(DateTime value)
{
if (SqlDbType.SmallDateTime == SqlDbType && (x_dtSmallMax < value || x_dtSmallMin > value))
ThrowInvalidType();
}
private static readonly SqlMoney x_smSmallMax = new SqlMoney(((Decimal)Int32.MaxValue)/10000);
private static readonly SqlMoney x_smSmallMin = new SqlMoney(((Decimal)Int32.MinValue)/10000);
void VerifyMoneyRange(SqlMoney value)
{
if (SqlDbType.SmallMoney == SqlDbType && ((x_smSmallMax < value).Value || (x_smSmallMin > value).Value))
ThrowInvalidType();
}
private SqlDecimal InternalAdjustSqlDecimal(SqlDecimal value)
{
if (!value.IsNull && (value.Precision != Precision || value.Scale != Scale))
{
// SQLBU 402377 Force truncation if target scale is smaller than actual scale.
if (value.Scale != Scale)
{
value = SqlDecimal.AdjustScale(value, Scale - value.Scale, false /* Don't round, truncate. */);
}
return SqlDecimal.ConvertToPrecScale(value, Precision, Scale);
}
return value;
}
private static readonly TimeSpan x_timeMin = TimeSpan.Zero;
private static readonly TimeSpan x_timeMax = new TimeSpan(TimeSpan.TicksPerDay - 1);
private void VerifyTimeRange(TimeSpan value) {
if (SqlDbType.Time == SqlDbType && (x_timeMin > value || value > x_timeMax)) {
ThrowInvalidType();
}
}
private static readonly Int64[] __unitTicksFromScale = {
10000000,
1000000,
100000,
10000,
1000,
100,
10,
1,
};
private Int64 InternalAdjustTimeTicks(Int64 ticks) {
return (ticks / __unitTicksFromScale[Scale] * __unitTicksFromScale[Scale]);
}
private static byte InferScaleFromTimeTicks(Int64 ticks) {
for (byte scale = 0; scale < MaxTimeScale; ++scale) {
if ((ticks / __unitTicksFromScale[scale] * __unitTicksFromScale[scale]) == ticks) {
return scale;
}
}
return MaxTimeScale;
}
private static DbType[] sxm_rgSqlDbTypeToDbType = {
DbType.Int64, // SqlDbType.BigInt
DbType.Binary, // SqlDbType.Binary
DbType.Boolean, // SqlDbType.Bit
DbType.AnsiString, // SqlDbType.Char
DbType.DateTime, // SqlDbType.DateTime
DbType.Decimal, // SqlDbType.Decimal
DbType.Double, // SqlDbType.Float
DbType.Binary, // SqlDbType.Image
DbType.Int32, // SqlDbType.Int
DbType.Currency, // SqlDbType.Money
DbType.String, // SqlDbType.NChar
DbType.String, // SqlDbType.NText
DbType.String, // SqlDbType.NVarChar
DbType.Single, // SqlDbType.Real
DbType.Guid, // SqlDbType.UniqueIdentifier
DbType.DateTime, // SqlDbType.SmallDateTime
DbType.Int16, // SqlDbType.SmallInt
DbType.Currency, // SqlDbType.SmallMoney
DbType.AnsiString, // SqlDbType.Text
DbType.Binary, // SqlDbType.Timestamp
DbType.Byte, // SqlDbType.TinyInt
DbType.Binary, // SqlDbType.VarBinary
DbType.AnsiString, // SqlDbType.VarChar
DbType.Object, // SqlDbType.Variant
DbType.Object, // SqlDbType.Row
DbType.Xml, // SqlDbType.Xml
DbType.String, // SqlDbType.NVarChar, place holder
DbType.String, // SqlDbType.NVarChar, place holder
DbType.String, // SqlDbType.NVarChar, place holder
DbType.Object, // SqlDbType.Udt
DbType.Object, // SqlDbType.Structured
DbType.Date, // SqlDbType.Date
DbType.Time, // SqlDbType.Time
DbType.DateTime2, // SqlDbType.DateTime2
DbType.DateTimeOffset // SqlDbType.DateTimeOffset
};
private void SetDefaultsForType( SqlDbType dbType )
{
if ( SqlDbType.BigInt <= dbType && SqlDbType.DateTimeOffset >= dbType )
{
SqlMetaData smdDflt = sxm_rgDefaults[(int)dbType];
m_sqlDbType = dbType;
m_lMaxLength = smdDflt.MaxLength;
m_bPrecision = smdDflt.Precision;
m_bScale = smdDflt.Scale;
m_lLocale = smdDflt.LocaleId;
m_eCompareOptions = smdDflt.CompareOptions;
}
}
// Array of default-valued metadata ordered by corresponding SqlDbType.
internal static SqlMetaData[] sxm_rgDefaults =
{
// new SqlMetaData(name, DbType, SqlDbType, MaxLen, Prec, Scale, Locale, DatabaseName, SchemaName, isPartialLength)
new SqlMetaData("bigint", SqlDbType.BigInt,
8, 19, 0, 0, SqlCompareOptions.None, false), // SqlDbType.BigInt
new SqlMetaData("binary", SqlDbType.Binary,
1, 0, 0, 0, SqlCompareOptions.None, false), // SqlDbType.Binary
new SqlMetaData("bit", SqlDbType.Bit,
1, 1, 0, 0, SqlCompareOptions.None, false), // SqlDbType.Bit
new SqlMetaData("char", SqlDbType.Char,
1, 0, 0, 0, x_eDefaultStringCompareOptions, false), // SqlDbType.Char
new SqlMetaData("datetime", SqlDbType.DateTime,
8, 23, 3, 0, SqlCompareOptions.None, false), // SqlDbType.DateTime
new SqlMetaData("decimal", SqlDbType.Decimal,
9, 18, 0, 0, SqlCompareOptions.None, false), // SqlDbType.Decimal
new SqlMetaData("float", SqlDbType.Float,
8, 53, 0, 0, SqlCompareOptions.None, false), // SqlDbType.Float
new SqlMetaData("image", SqlDbType.Image,
x_lMax, 0, 0, 0, SqlCompareOptions.None, false), // SqlDbType.Image
new SqlMetaData("int", SqlDbType.Int,
4, 10, 0, 0, SqlCompareOptions.None, false), // SqlDbType.Int
new SqlMetaData("money", SqlDbType.Money,
8, 19, 4, 0, SqlCompareOptions.None, false), // SqlDbType.Money
new SqlMetaData("nchar", SqlDbType.NChar,
1, 0, 0, 0, x_eDefaultStringCompareOptions, false), // SqlDbType.NChar
new SqlMetaData("ntext", SqlDbType.NText,
x_lMax, 0, 0, 0, x_eDefaultStringCompareOptions, false), // SqlDbType.NText
new SqlMetaData("nvarchar", SqlDbType.NVarChar,
x_lServerMaxUnicode, 0, 0, 0, x_eDefaultStringCompareOptions, false), // SqlDbType.NVarChar
new SqlMetaData("real", SqlDbType.Real,
4, 24, 0, 0, SqlCompareOptions.None, false), // SqlDbType.Real
new SqlMetaData("uniqueidentifier", SqlDbType.UniqueIdentifier,
16, 0, 0, 0, SqlCompareOptions.None, false), // SqlDbType.UniqueIdentifier
new SqlMetaData("smalldatetime", SqlDbType.SmallDateTime,
4, 16, 0, 0, SqlCompareOptions.None, false), // SqlDbType.SmallDateTime
new SqlMetaData("smallint", SqlDbType.SmallInt,
2, 5, 0, 0, SqlCompareOptions.None, false), // SqlDbType.SmallInt
new SqlMetaData("smallmoney", SqlDbType.SmallMoney,
4, 10, 4, 0, SqlCompareOptions.None, false), // SqlDbType.SmallMoney
new SqlMetaData("text", SqlDbType.Text,
x_lMax, 0, 0, 0, x_eDefaultStringCompareOptions, false), // SqlDbType.Text
new SqlMetaData("timestamp", SqlDbType.Timestamp,
8, 0, 0, 0, SqlCompareOptions.None, false), // SqlDbType.Timestamp
new SqlMetaData("tinyint", SqlDbType.TinyInt,
1, 3, 0, 0, SqlCompareOptions.None, false), // SqlDbType.TinyInt
new SqlMetaData("varbinary", SqlDbType.VarBinary,
x_lServerMaxBinary, 0, 0, 0, SqlCompareOptions.None, false), // SqlDbType.VarBinary
new SqlMetaData("varchar", SqlDbType.VarChar,
x_lServerMaxANSI, 0, 0, 0, x_eDefaultStringCompareOptions, false), // SqlDbType.VarChar
new SqlMetaData("sql_variant", SqlDbType.Variant,
8016, 0, 0, 0, SqlCompareOptions.None, false), // SqlDbType.Variant
new SqlMetaData("nvarchar", SqlDbType.NVarChar,
1, 0, 0, 0, x_eDefaultStringCompareOptions, false), // Placeholder for value 24
new SqlMetaData("xml", SqlDbType.Xml,
x_lMax, 0, 0, 0, x_eDefaultStringCompareOptions, true), // SqlDbType.Xml
new SqlMetaData("nvarchar", SqlDbType.NVarChar,
1, 0, 0, 0, x_eDefaultStringCompareOptions, false), // Placeholder for value 26
new SqlMetaData("nvarchar", SqlDbType.NVarChar,
x_lServerMaxUnicode, 0, 0, 0, x_eDefaultStringCompareOptions, false), // Placeholder for value 27
new SqlMetaData("nvarchar", SqlDbType.NVarChar,
x_lServerMaxUnicode, 0, 0, 0, x_eDefaultStringCompareOptions, false), // Placeholder for value 28
new SqlMetaData("udt", SqlDbType.Udt,
0, 0, 0, 0, SqlCompareOptions.None, false), // SqlDbType.Udt = 29 Bug Fix: 302698
new SqlMetaData("table", SqlDbType.Structured,
0, 0, 0, 0, SqlCompareOptions.None, false), // SqlDbType.Structured
new SqlMetaData("date", SqlDbType.Date,
3, 10,0, 0, SqlCompareOptions.None, false), // SqlDbType.Date
new SqlMetaData("time", SqlDbType.Time,
5, 0, 7, 0, SqlCompareOptions.None, false), // SqlDbType.Time
new SqlMetaData("datetime2", SqlDbType.DateTime2,
8, 0, 7, 0, SqlCompareOptions.None, false), // SqlDbType.DateTime2
new SqlMetaData("datetimeoffset", SqlDbType.DateTimeOffset,
10, 0, 7, 0, SqlCompareOptions.None, false), // SqlDbType.DateTimeOffset
};
}
}
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