Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / ndp / fx / src / DataEntity / System / Data / Objects / ObjectStateEntryDbDataRecord.cs / 2 / ObjectStateEntryDbDataRecord.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System; using System.Data; using System.Data.Common; using System.ComponentModel; using System.Data.Metadata.Edm; using System.Diagnostics; namespace System.Data.Objects { internal sealed class ObjectStateEntryDbDataRecord : DbDataRecord, IExtendedDataRecord { private readonly StateManagerTypeMetadata _metadata; private readonly ObjectStateEntry _cacheEntry; private readonly object _userObject; private DataRecordInfo _recordInfo; internal ObjectStateEntryDbDataRecord(ObjectStateEntry cacheEntry, StateManagerTypeMetadata metadata, object userObject) { EntityUtil.CheckArgumentNull(cacheEntry, "cacheEntry"); EntityUtil.CheckArgumentNull(userObject, "userObject"); EntityUtil.CheckArgumentNull(metadata, "metadata"); Debug.Assert(!cacheEntry.IsKeyEntry, "Cannot create an ObjectStateEntryDbDataRecord for a key entry"); switch (cacheEntry.State) { case EntityState.Unchanged: case EntityState.Modified: case EntityState.Deleted: _cacheEntry = cacheEntry; _userObject = userObject; _metadata = metadata; break; default: throw EntityUtil.CannotCreateObjectStateEntryDbDataRecord(); } } internal ObjectStateEntryDbDataRecord(ObjectStateEntry cacheEntry) { EntityUtil.CheckArgumentNull(cacheEntry, "cacheEntry"); Debug.Assert(cacheEntry.IsRelationship, "Wrong ctor is called for entity"); Debug.Assert(!cacheEntry.IsKeyEntry, "Cannot create an ObjectStateEntryDbDataRecord for a key entry"); switch (cacheEntry.State) { case EntityState.Unchanged: case EntityState.Modified: case EntityState.Deleted: _cacheEntry = cacheEntry; break; default: throw EntityUtil.CannotCreateObjectStateEntryDbDataRecord(); } } override public int FieldCount { get { Debug.Assert(_cacheEntry != null, "CacheEntry is required."); return _cacheEntry.GetFieldCount(_metadata); } } override public object this[int ordinal] { get { return GetValue(ordinal); } } override public object this[string name] { get { return GetValue(GetOrdinal(name)); } } override public bool GetBoolean(int ordinal) { return (bool)GetValue(ordinal); } override public byte GetByte(int ordinal) { return (byte)GetValue(ordinal); } override public long GetBytes(int ordinal, long dataIndex, byte[] buffer, int bufferIndex, int length) { byte[] tempBuffer; tempBuffer = (byte[])GetValue(ordinal); if (buffer == null) { return tempBuffer.Length; } int srcIndex = (int)dataIndex; int byteCount = Math.Min(tempBuffer.Length - srcIndex, length); if (srcIndex < 0) { throw EntityUtil.InvalidSourceBufferIndex(tempBuffer.Length, srcIndex, "dataIndex"); } else if ((bufferIndex < 0) || (bufferIndex > 0 && bufferIndex >= buffer.Length)) { throw EntityUtil.InvalidDestinationBufferIndex(buffer.Length, bufferIndex, "bufferIndex"); } if (0 < byteCount) { Array.Copy(tempBuffer, dataIndex, buffer, bufferIndex, byteCount); } else if (length < 0) { throw EntityUtil.InvalidDataLength(length); } else { byteCount = 0; } return byteCount; } override public char GetChar(int ordinal) { return (char)GetValue(ordinal); } override public long GetChars(int ordinal, long dataIndex, char[] buffer, int bufferIndex, int length) { char[] tempBuffer; tempBuffer = (char[])GetValue(ordinal); if (buffer == null) { return tempBuffer.Length; } int srcIndex = (int)dataIndex; int charCount = Math.Min(tempBuffer.Length - srcIndex, length); if (srcIndex < 0) { throw EntityUtil.InvalidSourceBufferIndex(buffer.Length, bufferIndex, "bufferIndex"); } else if ((bufferIndex < 0) || (bufferIndex > 0 && bufferIndex >= buffer.Length)) { throw EntityUtil.InvalidDestinationBufferIndex(buffer.Length, bufferIndex, "bufferIndex"); } if (0 < charCount) { Array.Copy(tempBuffer, dataIndex, buffer, bufferIndex, charCount); } else if (length < 0) { throw EntityUtil.InvalidDataLength(length); } else { charCount = 0; } return charCount; } override protected DbDataReader GetDbDataReader(int ordinal) { throw EntityUtil.NotSupported(); } override public string GetDataTypeName(int ordinal) { return (GetFieldType(ordinal)).Name; } override public DateTime GetDateTime(int ordinal) { return (DateTime)GetValue(ordinal); } override public Decimal GetDecimal(int ordinal) { return (Decimal)GetValue(ordinal); } override public double GetDouble(int ordinal) { return (Double)GetValue(ordinal); } public override Type GetFieldType(int ordinal) { return _cacheEntry.GetFieldType(ordinal, _metadata); } override public float GetFloat(int ordinal) { return (float)GetValue(ordinal); } override public Guid GetGuid(int ordinal) { return (Guid)GetValue(ordinal); } override public Int16 GetInt16(int ordinal) { return (Int16)GetValue(ordinal); } override public Int32 GetInt32(int ordinal) { return (Int32)GetValue(ordinal); } override public Int64 GetInt64(int ordinal) { return (Int64)GetValue(ordinal); } override public string GetName(int ordinal) { return _cacheEntry.GetCLayerName(ordinal, _metadata); } override public int GetOrdinal(string name) { int ordinal = _cacheEntry.GetOrdinalforCLayerName(name, _metadata); if (ordinal == -1) { throw EntityUtil.ArgumentOutOfRange("name"); } return ordinal; } override public string GetString(int ordinal) { return (string)GetValue(ordinal); } override public object GetValue(int ordinal) { if (_cacheEntry.IsRelationship) { return _cacheEntry.GetOriginalRelationValue(ordinal); } else { return _cacheEntry.GetOriginalEntityValue(_metadata, ordinal, _userObject, ObjectStateValueRecord.OriginalReadonly); } } override public int GetValues(object[] values) { if (values == null) { throw EntityUtil.ArgumentNull("values"); } int minValue = Math.Min(values.Length, FieldCount); for (int i = 0; i < minValue; i++) { values[i] = GetValue(i); } return minValue; } override public bool IsDBNull(int ordinal) { return (GetValue(ordinal) == DBNull.Value); } public DataRecordInfo DataRecordInfo { get { if (null == _recordInfo) { Debug.Assert(_cacheEntry != null, "CacheEntry is required."); _recordInfo = _cacheEntry.GetDataRecordInfo(_metadata, _userObject); } return _recordInfo; } } public DbDataRecord GetDataRecord(int ordinal) { return (DbDataRecord)GetValue(ordinal); } public DbDataReader GetDataReader(int i) { return this.GetDbDataReader(i); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System; using System.Data; using System.Data.Common; using System.ComponentModel; using System.Data.Metadata.Edm; using System.Diagnostics; namespace System.Data.Objects { internal sealed class ObjectStateEntryDbDataRecord : DbDataRecord, IExtendedDataRecord { private readonly StateManagerTypeMetadata _metadata; private readonly ObjectStateEntry _cacheEntry; private readonly object _userObject; private DataRecordInfo _recordInfo; internal ObjectStateEntryDbDataRecord(ObjectStateEntry cacheEntry, StateManagerTypeMetadata metadata, object userObject) { EntityUtil.CheckArgumentNull(cacheEntry, "cacheEntry"); EntityUtil.CheckArgumentNull(userObject, "userObject"); EntityUtil.CheckArgumentNull(metadata, "metadata"); Debug.Assert(!cacheEntry.IsKeyEntry, "Cannot create an ObjectStateEntryDbDataRecord for a key entry"); switch (cacheEntry.State) { case EntityState.Unchanged: case EntityState.Modified: case EntityState.Deleted: _cacheEntry = cacheEntry; _userObject = userObject; _metadata = metadata; break; default: throw EntityUtil.CannotCreateObjectStateEntryDbDataRecord(); } } internal ObjectStateEntryDbDataRecord(ObjectStateEntry cacheEntry) { EntityUtil.CheckArgumentNull(cacheEntry, "cacheEntry"); Debug.Assert(cacheEntry.IsRelationship, "Wrong ctor is called for entity"); Debug.Assert(!cacheEntry.IsKeyEntry, "Cannot create an ObjectStateEntryDbDataRecord for a key entry"); switch (cacheEntry.State) { case EntityState.Unchanged: case EntityState.Modified: case EntityState.Deleted: _cacheEntry = cacheEntry; break; default: throw EntityUtil.CannotCreateObjectStateEntryDbDataRecord(); } } override public int FieldCount { get { Debug.Assert(_cacheEntry != null, "CacheEntry is required."); return _cacheEntry.GetFieldCount(_metadata); } } override public object this[int ordinal] { get { return GetValue(ordinal); } } override public object this[string name] { get { return GetValue(GetOrdinal(name)); } } override public bool GetBoolean(int ordinal) { return (bool)GetValue(ordinal); } override public byte GetByte(int ordinal) { return (byte)GetValue(ordinal); } override public long GetBytes(int ordinal, long dataIndex, byte[] buffer, int bufferIndex, int length) { byte[] tempBuffer; tempBuffer = (byte[])GetValue(ordinal); if (buffer == null) { return tempBuffer.Length; } int srcIndex = (int)dataIndex; int byteCount = Math.Min(tempBuffer.Length - srcIndex, length); if (srcIndex < 0) { throw EntityUtil.InvalidSourceBufferIndex(tempBuffer.Length, srcIndex, "dataIndex"); } else if ((bufferIndex < 0) || (bufferIndex > 0 && bufferIndex >= buffer.Length)) { throw EntityUtil.InvalidDestinationBufferIndex(buffer.Length, bufferIndex, "bufferIndex"); } if (0 < byteCount) { Array.Copy(tempBuffer, dataIndex, buffer, bufferIndex, byteCount); } else if (length < 0) { throw EntityUtil.InvalidDataLength(length); } else { byteCount = 0; } return byteCount; } override public char GetChar(int ordinal) { return (char)GetValue(ordinal); } override public long GetChars(int ordinal, long dataIndex, char[] buffer, int bufferIndex, int length) { char[] tempBuffer; tempBuffer = (char[])GetValue(ordinal); if (buffer == null) { return tempBuffer.Length; } int srcIndex = (int)dataIndex; int charCount = Math.Min(tempBuffer.Length - srcIndex, length); if (srcIndex < 0) { throw EntityUtil.InvalidSourceBufferIndex(buffer.Length, bufferIndex, "bufferIndex"); } else if ((bufferIndex < 0) || (bufferIndex > 0 && bufferIndex >= buffer.Length)) { throw EntityUtil.InvalidDestinationBufferIndex(buffer.Length, bufferIndex, "bufferIndex"); } if (0 < charCount) { Array.Copy(tempBuffer, dataIndex, buffer, bufferIndex, charCount); } else if (length < 0) { throw EntityUtil.InvalidDataLength(length); } else { charCount = 0; } return charCount; } override protected DbDataReader GetDbDataReader(int ordinal) { throw EntityUtil.NotSupported(); } override public string GetDataTypeName(int ordinal) { return (GetFieldType(ordinal)).Name; } override public DateTime GetDateTime(int ordinal) { return (DateTime)GetValue(ordinal); } override public Decimal GetDecimal(int ordinal) { return (Decimal)GetValue(ordinal); } override public double GetDouble(int ordinal) { return (Double)GetValue(ordinal); } public override Type GetFieldType(int ordinal) { return _cacheEntry.GetFieldType(ordinal, _metadata); } override public float GetFloat(int ordinal) { return (float)GetValue(ordinal); } override public Guid GetGuid(int ordinal) { return (Guid)GetValue(ordinal); } override public Int16 GetInt16(int ordinal) { return (Int16)GetValue(ordinal); } override public Int32 GetInt32(int ordinal) { return (Int32)GetValue(ordinal); } override public Int64 GetInt64(int ordinal) { return (Int64)GetValue(ordinal); } override public string GetName(int ordinal) { return _cacheEntry.GetCLayerName(ordinal, _metadata); } override public int GetOrdinal(string name) { int ordinal = _cacheEntry.GetOrdinalforCLayerName(name, _metadata); if (ordinal == -1) { throw EntityUtil.ArgumentOutOfRange("name"); } return ordinal; } override public string GetString(int ordinal) { return (string)GetValue(ordinal); } override public object GetValue(int ordinal) { if (_cacheEntry.IsRelationship) { return _cacheEntry.GetOriginalRelationValue(ordinal); } else { return _cacheEntry.GetOriginalEntityValue(_metadata, ordinal, _userObject, ObjectStateValueRecord.OriginalReadonly); } } override public int GetValues(object[] values) { if (values == null) { throw EntityUtil.ArgumentNull("values"); } int minValue = Math.Min(values.Length, FieldCount); for (int i = 0; i < minValue; i++) { values[i] = GetValue(i); } return minValue; } override public bool IsDBNull(int ordinal) { return (GetValue(ordinal) == DBNull.Value); } public DataRecordInfo DataRecordInfo { get { if (null == _recordInfo) { Debug.Assert(_cacheEntry != null, "CacheEntry is required."); _recordInfo = _cacheEntry.GetDataRecordInfo(_metadata, _userObject); } return _recordInfo; } } public DbDataRecord GetDataRecord(int ordinal) { return (DbDataRecord)GetValue(ordinal); } public DbDataReader GetDataReader(int i) { return this.GetDbDataReader(i); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- SurrogateSelector.cs
- DBBindings.cs
- CodeStatementCollection.cs
- ContentFileHelper.cs
- PenThreadWorker.cs
- List.cs
- HttpProtocolImporter.cs
- MaterialCollection.cs
- BinaryObjectInfo.cs
- Exceptions.cs
- DebugView.cs
- WebPartDescriptionCollection.cs
- FontEmbeddingManager.cs
- CacheDict.cs
- MembershipSection.cs
- BufferedReadStream.cs
- Blend.cs
- ExpressionsCollectionConverter.cs
- LoginName.cs
- JournalEntry.cs
- ModelService.cs
- DummyDataSource.cs
- ArithmeticException.cs
- PointCollectionConverter.cs
- DataGridViewImageCell.cs
- ClientBuildManager.cs
- TableAutomationPeer.cs
- MsmqIntegrationOutputChannel.cs
- Size.cs
- ReturnValue.cs
- FontFamily.cs
- MDIClient.cs
- UserPreferenceChangingEventArgs.cs
- Int32.cs
- PrimitiveType.cs
- FillBehavior.cs
- RightNameExpirationInfoPair.cs
- ClientConfigPaths.cs
- HandlerFactoryWrapper.cs
- TextureBrush.cs
- XmlnsDictionary.cs
- WindowsTab.cs
- StreamSecurityUpgradeInitiatorBase.cs
- FontFamily.cs
- ExpressionConverter.cs
- VisualStyleInformation.cs
- AndAlso.cs
- DropDownHolder.cs
- MethodExecutor.cs
- PassportAuthentication.cs
- TypeElement.cs
- StackOverflowException.cs
- NativeMethodsOther.cs
- MatcherBuilder.cs
- ContractNamespaceAttribute.cs
- AuthenticationServiceManager.cs
- File.cs
- MailSettingsSection.cs
- UnconditionalPolicy.cs
- LocationReferenceValue.cs
- UserControl.cs
- Relationship.cs
- StreamSecurityUpgradeAcceptorBase.cs
- DSACryptoServiceProvider.cs
- FindProgressChangedEventArgs.cs
- FieldMetadata.cs
- GraphicsPathIterator.cs
- ForceCopyBuildProvider.cs
- SequentialOutput.cs
- HitTestResult.cs
- compensatingcollection.cs
- DSACryptoServiceProvider.cs
- DataGridViewLayoutData.cs
- HostExecutionContextManager.cs
- XmlObjectSerializerReadContextComplexJson.cs
- SocketConnection.cs
- Mappings.cs
- XsltException.cs
- TableRowGroupCollection.cs
- XmlParser.cs
- COMException.cs
- CodeCompileUnit.cs
- SessionState.cs
- TextSelection.cs
- DictionaryContent.cs
- TableLayout.cs
- AdCreatedEventArgs.cs
- SqlDataSourceRefreshSchemaForm.cs
- TableProviderWrapper.cs
- ContextQuery.cs
- ExceptionAggregator.cs
- PassportAuthenticationModule.cs
- ManagedFilter.cs
- XmlSchemas.cs
- AppDomainProtocolHandler.cs
- FreezableCollection.cs
- ItemAutomationPeer.cs
- SortedDictionary.cs
- Models.cs
- GradientBrush.cs