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C# Server.SmiMetaData类代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C#中Microsoft.SqlServer.Server.SmiMetaData的典型用法代码示例。如果您正苦于以下问题:C# SmiMetaData类的具体用法?C# SmiMetaData怎么用?C# SmiMetaData使用的例子?那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。



SmiMetaData类属于Microsoft.SqlServer.Server命名空间,在下文中一共展示了SmiMetaData类的20个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于我们的系统推荐出更棒的C#代码示例。

示例1: GetBytesConversion

        private static long GetBytesConversion(SmiEventSink_Default sink, ITypedGettersV3 getters, int ordinal, SmiMetaData metaData, long fieldOffset, byte[] buffer, int bufferOffset, int length, bool throwOnNull) {
            object obj = GetSqlValue( sink, getters, ordinal, metaData, null  );
            if (null == obj) {
                throw ADP.InvalidCast();
            }
            SqlBinary value = (SqlBinary) obj;

            if (value.IsNull) {
                if (throwOnNull) {
                    throw SQL.SqlNullValue();
                }
                else {
                    // return zero length in any case
                    return 0;
                }
            }

            if ( null == buffer ) {
                return value.Length;
            }

            length = CheckXetParameters( metaData.SqlDbType, metaData.MaxLength * sizeof(char), value.Length, 
                        fieldOffset, buffer.Length, bufferOffset, length );
            Array.Copy( value.Value, checked((int)fieldOffset), buffer, bufferOffset, length );
            return length;
        }
开发者ID:uQr,项目名称:referencesource,代码行数:26,代码来源:ValueUtilsSmi.cs


示例2: TdsValueSetter

 internal TdsValueSetter(TdsParserStateObject stateObj, SmiMetaData md)
 {
     this._stateObj = stateObj;
     this._metaData = md;
     this._isPlp = MetaDataUtilsSmi.IsPlpFormat(md);
     this._plpUnknownSent = false;
     this._encoder = null;
 }
开发者ID:pritesh-mandowara-sp,项目名称:DecompliedDotNetLibraries,代码行数:8,代码来源:TdsValueSetter.cs


示例3: SmiSettersStream

 internal SmiSettersStream(SmiEventSink_Default sink, ITypedSettersV3 setters, int ordinal, SmiMetaData metaData)
 {
     this._sink = sink;
     this._setters = setters;
     this._ordinal = ordinal;
     this._lengthWritten = 0L;
     this._metaData = metaData;
 }
开发者ID:pritesh-mandowara-sp,项目名称:DecompliedDotNetLibraries,代码行数:8,代码来源:SmiSettersStream.cs


示例4: SmiGettersStream

 internal SmiGettersStream(SmiEventSink_Default sink, ITypedGettersV3 getters, int ordinal, SmiMetaData metaData)
 {
     this._sink = sink;
     this._getters = getters;
     this._ordinal = ordinal;
     this._readPosition = 0L;
     this._metaData = metaData;
 }
开发者ID:pritesh-mandowara-sp,项目名称:DecompliedDotNetLibraries,代码行数:8,代码来源:SmiGettersStream.cs


示例5: MemoryRecordBuffer

        internal MemoryRecordBuffer(SmiMetaData[] metaData) {
            Debug.Assert(null != metaData, "invalid attempt to instantiate MemoryRecordBuffer with null SmiMetaData[]");

            _buffer = new SqlRecordBuffer[metaData.Length];

            for (int i = 0; i < _buffer.Length; ++i) {
                _buffer[i] = new SqlRecordBuffer(metaData[i]);
            }
        }
开发者ID:krytht,项目名称:DotNetReferenceSource,代码行数:9,代码来源:MemoryRecordBuffer.cs


示例6: TdsRecordBufferSetter

 internal TdsRecordBufferSetter(TdsParserStateObject stateObj, SmiMetaData md)
 {
     this._fieldSetters = new TdsValueSetter[md.FieldMetaData.Count];
     for (int i = 0; i < md.FieldMetaData.Count; i++)
     {
         this._fieldSetters[i] = new TdsValueSetter(stateObj, md.FieldMetaData[i]);
     }
     this._stateObj = stateObj;
     this._metaData = md;
 }
开发者ID:pritesh-mandowara-sp,项目名称:DecompliedDotNetLibraries,代码行数:10,代码来源:TdsRecordBufferSetter.cs


示例7: TdsValueSetter

        private int                     _currentOffset; // for chunking, verify that caller is using correct offsets
#endif

        #endregion

        #region Exposed Construct/factory methods

        internal TdsValueSetter(TdsParserStateObject stateObj, SmiMetaData md) {
            _stateObj = stateObj;
            _metaData = md;
            _isPlp = MetaDataUtilsSmi.IsPlpFormat(md);
            _plpUnknownSent = false;
            _encoder = null;
#if DEBUG
            _currentOffset = 0;
#endif
        }
开发者ID:uQr,项目名称:referencesource,代码行数:17,代码来源:TdsValueSetter.cs


示例8: GetByte

 internal static byte GetByte( SmiEventSink_Default sink, ITypedGettersV3 getters, int ordinal, SmiMetaData metaData ) {
     ThrowIfITypedGettersIsNull( sink, getters, ordinal );
     if ( CanAccessGetterDirectly( metaData, ExtendedClrTypeCode.Byte ) ) {
         return GetByte_Unchecked( sink, getters, ordinal );
     }
     object result = GetValue( sink, getters, ordinal, metaData, null );
     if (null == result) {
         throw ADP.InvalidCast();
     }
     return (Byte)result;
 }
开发者ID:uQr,项目名称:referencesource,代码行数:11,代码来源:ValueUtilsSmi.cs


示例9: SmiGettersStream

        internal SmiGettersStream( SmiEventSink_Default sink, ITypedGettersV3 getters, int ordinal, SmiMetaData metaData ) {
            Debug.Assert( null != sink );
            Debug.Assert( null != getters );
            Debug.Assert( 0 <= ordinal );
            Debug.Assert( null != metaData );

            _sink = sink;
            _getters = getters;
            _ordinal = ordinal;
            _readPosition = 0;
            _metaData = metaData;
        }
开发者ID:iskiselev,项目名称:JSIL.NetFramework,代码行数:12,代码来源:SmiGettersStream.cs


示例10: TdsRecordBufferSetter

        private int                     _currentField;      // validate that caller sets columns in correct order.
#endif

        #endregion
        
        #region Exposed Construct and control methods/properties

        internal TdsRecordBufferSetter(TdsParserStateObject stateObj, SmiMetaData md) {
            Debug.Assert(SqlDbType.Structured == md.SqlDbType, "Unsupported SqlDbType: " + md.SqlDbType);
            _fieldSetters = new TdsValueSetter[md.FieldMetaData.Count];
            for(int i=0; i<md.FieldMetaData.Count; i++) {
                _fieldSetters[i] = new TdsValueSetter(stateObj, md.FieldMetaData[i]);
            }
            _stateObj = stateObj;
            _metaData = md;
#if DEBUG
            _currentField = ReadyForToken;
#endif
        }
开发者ID:iskiselev,项目名称:JSIL.NetFramework,代码行数:19,代码来源:TdsRecordBufferSetter.cs


示例11: SmiSettersStream

        internal SmiSettersStream( SmiEventSink_Default sink, ITypedSettersV3 setters, int ordinal, SmiMetaData metaData ) {
            Debug.Assert( null != sink );
            Debug.Assert( null != setters );
            Debug.Assert( 0 <= ordinal );
            Debug.Assert( null != metaData );

            _sink = sink;
            _setters = setters;
            _ordinal = ordinal;
            _lengthWritten = 0;
            _metaData = metaData;
        }
开发者ID:krytht,项目名称:DotNetReferenceSource,代码行数:12,代码来源:SmiSettersStream.cs


示例12: GetSqlXml

        internal static SqlXml GetSqlXml( SmiEventSink_Default sink, ITypedGettersV3 getters, int ordinal, SmiMetaData metaData, SmiContext context ) {
            SqlXml result;
            if ( CanAccessGetterDirectly( metaData, ExtendedClrTypeCode.SqlXml ) ) {
                if ( IsDBNull_Unchecked( sink, getters, ordinal ) ) {
                    result = SqlXml.Null;
                }
                else {
                    result = GetSqlXml_Unchecked( sink, getters, ordinal, context );
                }
            }
            else {
                object obj = GetSqlValue( sink, getters, ordinal, metaData, null  );
                if (null == obj) {
                    throw ADP.InvalidCast();
                }
                result = (SqlXml) obj;
            }

            return result;
        }
开发者ID:uQr,项目名称:referencesource,代码行数:20,代码来源:ValueUtilsSmi.cs


示例13: GetSqlString

        internal static SqlString GetSqlString( SmiEventSink_Default sink, ITypedGettersV3 getters, int ordinal, SmiMetaData metaData ) {
            SqlString result;
            if ( CanAccessGetterDirectly( metaData, ExtendedClrTypeCode.SqlString ) ) {
                if ( IsDBNull_Unchecked( sink, getters, ordinal ) ) {
                    result = SqlString.Null;
                }
                else {
                    String temp = GetString_Unchecked( sink, getters, ordinal );
                    result = new SqlString( temp );
                }
            }
            else if (SqlDbType.Xml == metaData.SqlDbType) {
                SqlXml xmlValue = GetSqlXml_Unchecked( sink, getters, ordinal, null );
                
                if (xmlValue.IsNull) {
                    result = SqlString.Null;
                }
                else {
                    result = new SqlString( xmlValue.Value );
                }
            }
            else {
                object obj = GetSqlValue( sink, getters, ordinal, metaData, null  );
                if (null == obj) {
                    throw ADP.InvalidCast();
                }
                result = (SqlString) obj;
            }

            return result;
        }
开发者ID:uQr,项目名称:referencesource,代码行数:31,代码来源:ValueUtilsSmi.cs


示例14: GetTimeSpan

 // dealing with v200 SMI
 internal static TimeSpan GetTimeSpan(SmiEventSink_Default sink, SmiTypedGetterSetter getters, int ordinal, SmiMetaData metaData) {
     ThrowIfITypedGettersIsNull(sink, getters, ordinal);
     if (CanAccessGetterDirectly(metaData, ExtendedClrTypeCode.TimeSpan)) {
         return GetTimeSpan_Unchecked(sink, getters, ordinal);
     }
     return (TimeSpan)GetValue200(sink, getters, ordinal, metaData, null);
 }
开发者ID:uQr,项目名称:referencesource,代码行数:8,代码来源:ValueUtilsSmi.cs


示例15: GetTextReader

        internal static TextReader GetTextReader( SmiEventSink_Default sink, ITypedGettersV3 getters, int ordinal, SmiMetaData metaData ) {
            bool isDbNull = ValueUtilsSmi.IsDBNull_Unchecked(sink, getters, ordinal);

            // If a sql_variant, get the internal type
            if ((!isDbNull) && (metaData.SqlDbType == SqlDbType.Variant)) {
                metaData = getters.GetVariantType(sink, ordinal);
            }
            // If the SqlDbType is still variant, then it must contain null, so don't throw InvalidCast
            if ((metaData.SqlDbType != SqlDbType.Variant) && (!CanAccessGetterDirectly(metaData, ExtendedClrTypeCode.TextReader))) {
                throw ADP.InvalidCast();
            }

            string data;
            if (isDbNull) {
                // "null" textreader
                data = string.Empty;
            }
            else {
                // Read all data
                data = GetString_Unchecked(sink, getters, ordinal);
            }

            // Wrap in pre-built object
            return new StringReader(data);
        }
开发者ID:uQr,项目名称:referencesource,代码行数:25,代码来源:ValueUtilsSmi.cs


示例16: SetSqlString_Unchecked

 private static void SetSqlString_Unchecked( SmiEventSink_Default sink, ITypedSettersV3 setters, int ordinal, SmiMetaData metaData, SqlString value, int offset, int length ) {
     if ( value.IsNull ) {
         setters.SetDBNull( sink, ordinal );
         sink.ProcessMessagesAndThrow();
     }
     else {
         if (SqlDbType.Variant == metaData.SqlDbType) {
             // Set up a NVarChar metadata with correct LCID/Collation
             metaData = new SmiMetaData(
                     SqlDbType.NVarChar, 
                     SmiMetaData.MaxUnicodeCharacters,
                     0, 
                     0, 
                     value.LCID,
                     value.SqlCompareOptions,
                     null);
             setters.SetVariantMetaData( sink, ordinal, metaData );
             sink.ProcessMessagesAndThrow();
         }
         SetString_Unchecked( sink, setters, ordinal, value.Value, offset, length );
     }
 }
开发者ID:uQr,项目名称:referencesource,代码行数:22,代码来源:ValueUtilsSmi.cs


示例17: SetSqlMoney_Unchecked

        private static void SetSqlMoney_Unchecked( SmiEventSink_Default sink, ITypedSettersV3 setters, int ordinal, SmiMetaData metaData, SqlMoney value ) {
            if ( value.IsNull ) {
                setters.SetDBNull( sink, ordinal );
            }
            else {
                if ( SqlDbType.Variant == metaData.SqlDbType ) {
                    setters.SetVariantMetaData( sink, ordinal, SmiMetaData.DefaultMoney );
                    sink.ProcessMessagesAndThrow();
                }

                setters.SetInt64( sink, ordinal, value.ToSqlInternalRepresentation() );
             }
            sink.ProcessMessagesAndThrow();
        }
开发者ID:uQr,项目名称:referencesource,代码行数:14,代码来源:ValueUtilsSmi.cs


示例18: GetString

 internal static String GetString( SmiEventSink_Default sink, ITypedGettersV3 getters, int ordinal, SmiMetaData metaData ) {
     ThrowIfITypedGettersIsNull( sink, getters, ordinal );
     if ( CanAccessGetterDirectly( metaData, ExtendedClrTypeCode.String ) ) {
         return GetString_Unchecked( sink, getters, ordinal );
     }
     object obj = GetValue( sink, getters, ordinal, metaData, null  );
     if (null == obj) {
         throw ADP.InvalidCast();
     }
     return (String) obj;
 }
开发者ID:uQr,项目名称:referencesource,代码行数:11,代码来源:ValueUtilsSmi.cs


示例19: GetSequentialTextReader

        internal static SqlSequentialTextReaderSmi GetSequentialTextReader( SmiEventSink_Default sink, ITypedGettersV3 getters, int ordinal, SmiMetaData metaData ) {
            Debug.Assert(!ValueUtilsSmi.IsDBNull_Unchecked(sink, getters, ordinal), "Should not try to get a SqlSequentialTextReaderSmi on a null column");
            ThrowIfITypedGettersIsNull( sink, getters, ordinal );
            if ( !CanAccessGetterDirectly( metaData, ExtendedClrTypeCode.TextReader ) ) {
                throw ADP.InvalidCast();
            }

            // This will advance the column to ordinal
            long length = GetCharsLength_Unchecked(sink, getters, ordinal);
            return new SqlSequentialTextReaderSmi(sink, getters, ordinal, length);
        }
开发者ID:uQr,项目名称:referencesource,代码行数:11,代码来源:ValueUtilsSmi.cs


示例20: SetDataTable_Unchecked

        private static void SetDataTable_Unchecked(
                SmiEventSink_Default    sink,
                SmiTypedGetterSetter    setters,
                int                     ordinal,
                SmiMetaData             metaData,
                DataTable               value
            ) {
            // Get the target gettersetter
            setters = setters.GetTypedGetterSetter(sink, ordinal);
            sink.ProcessMessagesAndThrow();

            // iterate over all records
            //  if first record was obtained earlier, use it prior to pulling more
            ExtendedClrTypeCode[] cellTypes = new ExtendedClrTypeCode[metaData.FieldMetaData.Count];
            for(int i=0; i<metaData.FieldMetaData.Count; i++) {
                cellTypes[i] = ExtendedClrTypeCode.Invalid;
            }
            foreach(DataRow row in value.Rows) {
                setters.NewElement(sink);
                sink.ProcessMessagesAndThrow();

                // Set all columns in the record
                for(int i=0; i<metaData.FieldMetaData.Count; i++) {
                    SmiMetaData fieldMetaData = metaData.FieldMetaData[i];
                    if (row.IsNull(i)) {
                        SetDBNull_Unchecked(sink, setters, i);
                    }
                    else {
                        object cellValue = row[i];

                        // Only determine cell types for first row, to save expensive 
                        if (ExtendedClrTypeCode.Invalid == cellTypes[i]) {
                            cellTypes[i] = MetaDataUtilsSmi.DetermineExtendedTypeCodeForUseWithSqlDbType(
                                    fieldMetaData.SqlDbType, fieldMetaData.IsMultiValued, cellValue, fieldMetaData.Type, 
                                    // 

                                    SmiContextFactory.KatmaiVersion 
                                    );
                        }
                        SetCompatibleValueV200(sink, setters, i, fieldMetaData, cellValue, cellTypes[i], 0, NoLengthLimit, null);
                    }
                }
            }

            setters.EndElements(sink);
            sink.ProcessMessagesAndThrow();
        }
开发者ID:uQr,项目名称:referencesource,代码行数:47,代码来源:ValueUtilsSmi.cs



注:本文中的Microsoft.SqlServer.Server.SmiMetaData类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。


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上一篇:
C# Server.SmiTypedGetterSetter类代码示例发布时间:2022-05-26
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C# Server.SmiEventSink_Default类代码示例发布时间:2022-05-26
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