Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / ndp / fx / src / DataEntity / System / Data / Map / ViewGeneration / Structures / ScalarConstant.cs / 2 / ScalarConstant.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Text; using System.Data.Common.Utils; using System.Data.Mapping.ViewGeneration.CqlGeneration; using System.Data.Mapping.ViewGeneration.Utils; using System.Data.Metadata.Edm; namespace System.Data.Mapping.ViewGeneration.Structures { // A class that denotes a constant value that can be stored in a // multiconstant or in a projected slot of a cellquery internal class ScalarConstant : CellConstant { #region Constructor // effects: Creates a scalar constant corresponding to value internal ScalarConstant(object value) { m_scalar = value; } #endregion #region Fields private object m_scalar; // The actual value of the scalar #endregion #region Properties internal object Value { get { return m_scalar;} } #endregion #region Methods // effects: See CellConstant.AsCql internal override StringBuilder AsCql(StringBuilder builder, MemberPath outputMember, string blockAlias) { // A constant path better be more than just the extent EdmType constType = Helper.GetModelTypeUsage(outputMember.LastMember).EdmType; // Some built-in constants if (BuiltInTypeKind.PrimitiveType == constType.BuiltInTypeKind) { PrimitiveTypeKind primitiveTypeKind = ((PrimitiveType)constType).PrimitiveTypeKind; if (primitiveTypeKind == PrimitiveTypeKind.Boolean) { // This better be a boolean. Else we crash! bool val = (bool)m_scalar; string value = StringUtil.FormatInvariant("{0}", val); builder.Append(value); return builder; } else if (primitiveTypeKind == PrimitiveTypeKind.String) { // It's a string: no need to cast AppendEscapedScalar(builder); return builder; } } else if (BuiltInTypeKind.EnumType == constType.BuiltInTypeKind) { // Enumerated type - we should be able to cast it EnumMember enumValue = (EnumMember) m_scalar; builder.Append(enumValue.Name); return builder; } // Need to cast builder.Append("CAST("); AppendEscapedScalar(builder); builder.Append(" AS "); CqlWriter.AppendEscapedTypeName(builder, constType); builder.Append(')'); return builder; } // effects: Modifies builder to contain an escaped version of this private StringBuilder AppendEscapedScalar(StringBuilder builder) { string value = StringUtil.FormatInvariant("{0}", m_scalar); if (value.Contains("'")) { // Deal with strings with ' by doubling it value = value.Replace("'", "''"); } StringUtil.FormatStringBuilder(builder, "'{0}'", value); return builder; } // Returns true if this is semantically equivalent to obj protected override bool IsEqualTo(CellConstant right) { ScalarConstant rightScalarConstant = right as ScalarConstant; if (rightScalarConstant == null) { return false; } return CdpEqualityComparer.DefaultEqualityComparer.Equals(m_scalar, rightScalarConstant.m_scalar); } protected override int GetHash() { if (m_scalar == null) { return 1; } else { return m_scalar.GetHashCode(); } } private void InternalToString(StringBuilder builder, bool isInvariant) { EnumMember enumMember = m_scalar as EnumMember; if (enumMember != null) { builder.Append(enumMember.Name); } else if (m_scalar == null) { builder.Append(isInvariant? "NULL": System.Data.Entity.Strings.ViewGen_Null); } else { builder.Append(StringUtil.FormatInvariant("'{0}'", m_scalar)); } } internal override string ToUserString() { StringBuilder builder = new StringBuilder(); InternalToString(builder, false); return builder.ToString(); } internal override void ToCompactString(StringBuilder builder) { InternalToString(builder, true); } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Text; using System.Data.Common.Utils; using System.Data.Mapping.ViewGeneration.CqlGeneration; using System.Data.Mapping.ViewGeneration.Utils; using System.Data.Metadata.Edm; namespace System.Data.Mapping.ViewGeneration.Structures { // A class that denotes a constant value that can be stored in a // multiconstant or in a projected slot of a cellquery internal class ScalarConstant : CellConstant { #region Constructor // effects: Creates a scalar constant corresponding to value internal ScalarConstant(object value) { m_scalar = value; } #endregion #region Fields private object m_scalar; // The actual value of the scalar #endregion #region Properties internal object Value { get { return m_scalar;} } #endregion #region Methods // effects: See CellConstant.AsCql internal override StringBuilder AsCql(StringBuilder builder, MemberPath outputMember, string blockAlias) { // A constant path better be more than just the extent EdmType constType = Helper.GetModelTypeUsage(outputMember.LastMember).EdmType; // Some built-in constants if (BuiltInTypeKind.PrimitiveType == constType.BuiltInTypeKind) { PrimitiveTypeKind primitiveTypeKind = ((PrimitiveType)constType).PrimitiveTypeKind; if (primitiveTypeKind == PrimitiveTypeKind.Boolean) { // This better be a boolean. Else we crash! bool val = (bool)m_scalar; string value = StringUtil.FormatInvariant("{0}", val); builder.Append(value); return builder; } else if (primitiveTypeKind == PrimitiveTypeKind.String) { // It's a string: no need to cast AppendEscapedScalar(builder); return builder; } } else if (BuiltInTypeKind.EnumType == constType.BuiltInTypeKind) { // Enumerated type - we should be able to cast it EnumMember enumValue = (EnumMember) m_scalar; builder.Append(enumValue.Name); return builder; } // Need to cast builder.Append("CAST("); AppendEscapedScalar(builder); builder.Append(" AS "); CqlWriter.AppendEscapedTypeName(builder, constType); builder.Append(')'); return builder; } // effects: Modifies builder to contain an escaped version of this private StringBuilder AppendEscapedScalar(StringBuilder builder) { string value = StringUtil.FormatInvariant("{0}", m_scalar); if (value.Contains("'")) { // Deal with strings with ' by doubling it value = value.Replace("'", "''"); } StringUtil.FormatStringBuilder(builder, "'{0}'", value); return builder; } // Returns true if this is semantically equivalent to obj protected override bool IsEqualTo(CellConstant right) { ScalarConstant rightScalarConstant = right as ScalarConstant; if (rightScalarConstant == null) { return false; } return CdpEqualityComparer.DefaultEqualityComparer.Equals(m_scalar, rightScalarConstant.m_scalar); } protected override int GetHash() { if (m_scalar == null) { return 1; } else { return m_scalar.GetHashCode(); } } private void InternalToString(StringBuilder builder, bool isInvariant) { EnumMember enumMember = m_scalar as EnumMember; if (enumMember != null) { builder.Append(enumMember.Name); } else if (m_scalar == null) { builder.Append(isInvariant? "NULL": System.Data.Entity.Strings.ViewGen_Null); } else { builder.Append(StringUtil.FormatInvariant("'{0}'", m_scalar)); } } internal override string ToUserString() { StringBuilder builder = new StringBuilder(); InternalToString(builder, false); return builder.ToString(); } internal override void ToCompactString(StringBuilder builder) { InternalToString(builder, true); } #endregion } } // 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
- cookiecontainer.cs
- DataKeyCollection.cs
- ThreadExceptionEvent.cs
- SystemThemeKey.cs
- DecoderReplacementFallback.cs
- ImageSource.cs
- ObjectStateEntryDbDataRecord.cs
- CustomTrackingRecord.cs
- Event.cs
- ToolStripItemClickedEventArgs.cs
- TypeTypeConverter.cs
- WebBaseEventKeyComparer.cs
- Brush.cs
- WindowsRichEdit.cs
- ProfilePropertyNameValidator.cs
- StreamGeometry.cs
- DocumentPageTextView.cs
- SimpleMailWebEventProvider.cs
- HtmlLink.cs
- ReaderOutput.cs
- WebPartPersonalization.cs
- ItemCollection.cs
- DocumentReferenceCollection.cs
- HtmlFormAdapter.cs
- Cursors.cs
- DesignerExtenders.cs
- BitmapMetadata.cs
- UpdateProgress.cs
- ModelTypeConverter.cs
- InvokeWebServiceDesigner.cs
- RowBinding.cs
- CellIdBoolean.cs
- EncoderNLS.cs
- WebAdminConfigurationHelper.cs
- SecurityKeyType.cs
- DataControlFieldCollection.cs
- TimeSpanMinutesOrInfiniteConverter.cs
- MsmqAppDomainProtocolHandler.cs
- EmptyStringExpandableObjectConverter.cs
- FileRecordSequence.cs
- PersistenceContextEnlistment.cs
- CodeConditionStatement.cs
- _AuthenticationState.cs
- ResolvePPIDRequest.cs
- DataGridBoolColumn.cs
- MapPathBasedVirtualPathProvider.cs
- MemberHolder.cs
- Timeline.cs
- EditorPartDesigner.cs
- OdbcStatementHandle.cs
- VolatileEnlistmentState.cs
- TraceXPathNavigator.cs
- DbTypeMap.cs
- EntityViewGenerationConstants.cs
- MenuTracker.cs
- OrderedHashRepartitionEnumerator.cs
- RoutedPropertyChangedEventArgs.cs
- SubstitutionDesigner.cs
- ExpiredSecurityTokenException.cs
- Membership.cs
- ListItemParagraph.cs
- DataBindingHandlerAttribute.cs
- ObjectStateFormatter.cs
- AutomationFocusChangedEventArgs.cs
- MergablePropertyAttribute.cs
- SqlVisitor.cs
- ElementHost.cs
- SinglePageViewer.cs
- UpdatePanelTriggerCollection.cs
- DrawingVisualDrawingContext.cs
- SmiXetterAccessMap.cs
- XPathNodeHelper.cs
- PDBReader.cs
- RijndaelManaged.cs
- Brushes.cs
- AsyncOperation.cs
- BigIntegerStorage.cs
- TextBoxLine.cs
- CornerRadius.cs
- AssemblyAssociatedContentFileAttribute.cs
- BezierSegment.cs
- SecurityKeyType.cs
- XsltArgumentList.cs
- XmlDocumentType.cs
- BamlRecordHelper.cs
- HwndSource.cs
- ListBoxDesigner.cs
- SoapEnvelopeProcessingElement.cs
- processwaithandle.cs
- OracleException.cs
- NameNode.cs
- PathSegmentCollection.cs
- PolicyVersionConverter.cs
- ArithmeticException.cs
- InstanceOwner.cs
- CompilerLocalReference.cs
- OleDbPermission.cs
- JsonGlobals.cs
- PinnedBufferMemoryStream.cs
- DataServiceRequestOfT.cs