Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / ndp / fx / src / DataEntity / System / Data / Map / ViewGeneration / Structures / NegatedCellConstant.cs / 2 / NegatedCellConstant.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Collections.Generic; using System.Data.Common.Utils; using System.Text; using System.Diagnostics; using System.Data.Mapping.ViewGeneration.Utils; using System.Data.Entity; namespace System.Data.Mapping.ViewGeneration.Structures { // A class that represents NOT(elements), e.g., NOT(1, 2, NULL), i.e., // all values other than null, 1 and 2 internal class NegatedCellConstant : CellConstant { #region Constructors // effects: Creates NOT(NULL} internal static NegatedCellConstant CreateNotNull() { NegatedCellConstant result = new NegatedCellConstant(); result.m_negatedDomain.Add(CellConstant.Null); return result; } // effects: Creates an empty domain private NegatedCellConstant() { m_negatedDomain = new Set(CellConstant.EqualityComparer); } // requires: values has no NegatedCellConstant // effects: Creates a negated constant with the values in it internal NegatedCellConstant(IEnumerable values) { m_negatedDomain = new Set (values, CellConstant.EqualityComparer); Debug.Assert(CheckRepInvariantLocal()); } #endregion #region Fields private Set m_negatedDomain; // e.g., NOT(1, 2, Undefined) #endregion #region Properties internal IEnumerable Elements { get { return m_negatedDomain;} } #endregion #region Methods // effects: Returns true if this contains "constant" internal bool Contains(CellConstant constant) { return m_negatedDomain.Contains(constant); } // effects: Returns true if this represents "NotNull" precisely internal override bool IsNotNull() { return m_negatedDomain.Count == 1 && m_negatedDomain.Contains(CellConstant.Null); } // effects: Returns true if this contains "NotNull" internal override bool HasNotNull() { return m_negatedDomain.Contains(CellConstant.Null); } internal override bool CheckRepInvariant() { return CheckRepInvariantLocal(); } // effects: Make sure that this negated constant's invariants are valid internal bool CheckRepInvariantLocal() { // NOT cannot contain negated cell constants foreach (CellConstant constant in Elements) { Debug.Assert(constant as NegatedCellConstant == null, "NegatedCellConstant in NegatedCellConstant?"); } return true; } // effects: Returns a hash value for this protected override int GetHash() { int result = 0; foreach (CellConstant constant in m_negatedDomain) { result ^= CellConstant.EqualityComparer.GetHashCode(constant); } return result; } // effects: Returns true if right has the same contents as this protected override bool IsEqualTo(CellConstant right) { NegatedCellConstant rightNegatedConstant = right as NegatedCellConstant; if (rightNegatedConstant == null) { return false; } return m_negatedDomain.SetEquals(rightNegatedConstant.m_negatedDomain); } // effects: Given a set of positive constants (constants) and this, // generates a Cql expression, e.g., 7, NOT(7, NULL) means NOT NULL // 7, 8, NOT(7, 8, 9, 10) Means NOT(9, 10) // Note: NOT(9, NULL) is NOT (a is 9 OR a is NULL) = // A IS NOT 9 AND A IS NOT NULL internal StringBuilder AsCql(StringBuilder builder, string blockAlias, Set constants, MemberPath path, bool canSkipIsNotNull) { return ToStringHelper(builder, blockAlias, constants, path, canSkipIsNotNull, false); } // effects: Given a set of constants, generates "Slot = X AND Slot = Y" or "Slot <> X AND Slot <> Y" (depending ifGenerateEquals) private static void GenerateAndsForSlot(StringBuilder builder, string blockAlias, Set constants, MemberPath path, bool anyAdded, bool userString) { foreach (CellConstant constant in constants) { if (anyAdded) { builder.Append(" AND "); } anyAdded = true; if (userString) { path.ToCompactString(builder, blockAlias); builder.Append(" <>"); constant.ToCompactString(builder); } else { path.AsCql(builder, blockAlias); builder.Append(" <>"); constant.AsCql(builder, path, blockAlias); } } } private StringBuilder ToStringHelper(StringBuilder builder, string blockAlias, Set constants, MemberPath path, bool canSkipIsNotNull, bool userString) { bool isNullable = path.IsNullable; // Remove all the constants from negated and then print NOT // .. AND NOT .. AND NOT ... Set negatedConstants = new Set (Elements, CellConstant.EqualityComparer); foreach (CellConstant constant in constants) { if (constant.Equals(this)) { continue; } Debug.Assert(negatedConstants.Contains(constant), "Negated constant must contain all positive constants"); negatedConstants.Remove(constant); } if (negatedConstants.Count == 0) { // All constants cancel out builder.Append("true"); return builder; } bool hasNull = negatedConstants.Contains(CellConstant.Null); negatedConstants.Remove(CellConstant.Null); // We always add IS NOT NULL if the property is nullable (and we // cannot skip IS NOT NULL). Also, if the domain contains NOT // NULL, we must add it bool anyAdded = false; if (hasNull || (isNullable && canSkipIsNotNull == false)) { if (userString) { path.ToCompactString(builder, blockAlias); builder.Append(" is not NULL"); } else { path.AsCql(builder, blockAlias); builder.Append(" IS NOT NULL"); } anyAdded = true; } GenerateAndsForSlot(builder, blockAlias, negatedConstants, path, anyAdded, userString); return builder; } internal StringBuilder AsUserString(StringBuilder builder, string blockAlias, Set constants, MemberPath path, bool canSkipIsNotNull) { return ToStringHelper(builder, blockAlias, constants, path, canSkipIsNotNull, true); } internal override string ToUserString() { if (IsNotNull()) { return System.Data.Entity.Strings.ViewGen_NotNull; } else { StringBuilder builder = new StringBuilder(); bool isFirst = true; foreach (CellConstant constant in m_negatedDomain) { // Skip printing out Null if m_negatedDomain has other values if (m_negatedDomain.Count > 1 && constant.IsNull()) { continue; } if (isFirst == false) { builder.Append(System.Data.Entity.Strings.ViewGen_CommaBlank); } isFirst = false; builder.Append(constant.ToUserString()); } StringBuilder result = new StringBuilder(); result.Append(Strings.ViewGen_NegatedCellConstant_0(builder.ToString())); return result.ToString(); } } internal override void ToCompactString(StringBuilder builder) { // Special code for NOT NULL if (IsNotNull()) { builder.Append("NOT_NULL"); } else { builder.Append("NOT("); StringUtil.ToCommaSeparatedStringSorted(builder, m_negatedDomain); builder.Append(")"); } } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- // // Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Collections.Generic; using System.Data.Common.Utils; using System.Text; using System.Diagnostics; using System.Data.Mapping.ViewGeneration.Utils; using System.Data.Entity; namespace System.Data.Mapping.ViewGeneration.Structures { // A class that represents NOT(elements), e.g., NOT(1, 2, NULL), i.e., // all values other than null, 1 and 2 internal class NegatedCellConstant : CellConstant { #region Constructors // effects: Creates NOT(NULL} internal static NegatedCellConstant CreateNotNull() { NegatedCellConstant result = new NegatedCellConstant(); result.m_negatedDomain.Add(CellConstant.Null); return result; } // effects: Creates an empty domain private NegatedCellConstant() { m_negatedDomain = new Set(CellConstant.EqualityComparer); } // requires: values has no NegatedCellConstant // effects: Creates a negated constant with the values in it internal NegatedCellConstant(IEnumerable values) { m_negatedDomain = new Set (values, CellConstant.EqualityComparer); Debug.Assert(CheckRepInvariantLocal()); } #endregion #region Fields private Set m_negatedDomain; // e.g., NOT(1, 2, Undefined) #endregion #region Properties internal IEnumerable Elements { get { return m_negatedDomain;} } #endregion #region Methods // effects: Returns true if this contains "constant" internal bool Contains(CellConstant constant) { return m_negatedDomain.Contains(constant); } // effects: Returns true if this represents "NotNull" precisely internal override bool IsNotNull() { return m_negatedDomain.Count == 1 && m_negatedDomain.Contains(CellConstant.Null); } // effects: Returns true if this contains "NotNull" internal override bool HasNotNull() { return m_negatedDomain.Contains(CellConstant.Null); } internal override bool CheckRepInvariant() { return CheckRepInvariantLocal(); } // effects: Make sure that this negated constant's invariants are valid internal bool CheckRepInvariantLocal() { // NOT cannot contain negated cell constants foreach (CellConstant constant in Elements) { Debug.Assert(constant as NegatedCellConstant == null, "NegatedCellConstant in NegatedCellConstant?"); } return true; } // effects: Returns a hash value for this protected override int GetHash() { int result = 0; foreach (CellConstant constant in m_negatedDomain) { result ^= CellConstant.EqualityComparer.GetHashCode(constant); } return result; } // effects: Returns true if right has the same contents as this protected override bool IsEqualTo(CellConstant right) { NegatedCellConstant rightNegatedConstant = right as NegatedCellConstant; if (rightNegatedConstant == null) { return false; } return m_negatedDomain.SetEquals(rightNegatedConstant.m_negatedDomain); } // effects: Given a set of positive constants (constants) and this, // generates a Cql expression, e.g., 7, NOT(7, NULL) means NOT NULL // 7, 8, NOT(7, 8, 9, 10) Means NOT(9, 10) // Note: NOT(9, NULL) is NOT (a is 9 OR a is NULL) = // A IS NOT 9 AND A IS NOT NULL internal StringBuilder AsCql(StringBuilder builder, string blockAlias, Set constants, MemberPath path, bool canSkipIsNotNull) { return ToStringHelper(builder, blockAlias, constants, path, canSkipIsNotNull, false); } // effects: Given a set of constants, generates "Slot = X AND Slot = Y" or "Slot <> X AND Slot <> Y" (depending ifGenerateEquals) private static void GenerateAndsForSlot(StringBuilder builder, string blockAlias, Set constants, MemberPath path, bool anyAdded, bool userString) { foreach (CellConstant constant in constants) { if (anyAdded) { builder.Append(" AND "); } anyAdded = true; if (userString) { path.ToCompactString(builder, blockAlias); builder.Append(" <>"); constant.ToCompactString(builder); } else { path.AsCql(builder, blockAlias); builder.Append(" <>"); constant.AsCql(builder, path, blockAlias); } } } private StringBuilder ToStringHelper(StringBuilder builder, string blockAlias, Set constants, MemberPath path, bool canSkipIsNotNull, bool userString) { bool isNullable = path.IsNullable; // Remove all the constants from negated and then print NOT // .. AND NOT .. AND NOT ... Set negatedConstants = new Set (Elements, CellConstant.EqualityComparer); foreach (CellConstant constant in constants) { if (constant.Equals(this)) { continue; } Debug.Assert(negatedConstants.Contains(constant), "Negated constant must contain all positive constants"); negatedConstants.Remove(constant); } if (negatedConstants.Count == 0) { // All constants cancel out builder.Append("true"); return builder; } bool hasNull = negatedConstants.Contains(CellConstant.Null); negatedConstants.Remove(CellConstant.Null); // We always add IS NOT NULL if the property is nullable (and we // cannot skip IS NOT NULL). Also, if the domain contains NOT // NULL, we must add it bool anyAdded = false; if (hasNull || (isNullable && canSkipIsNotNull == false)) { if (userString) { path.ToCompactString(builder, blockAlias); builder.Append(" is not NULL"); } else { path.AsCql(builder, blockAlias); builder.Append(" IS NOT NULL"); } anyAdded = true; } GenerateAndsForSlot(builder, blockAlias, negatedConstants, path, anyAdded, userString); return builder; } internal StringBuilder AsUserString(StringBuilder builder, string blockAlias, Set constants, MemberPath path, bool canSkipIsNotNull) { return ToStringHelper(builder, blockAlias, constants, path, canSkipIsNotNull, true); } internal override string ToUserString() { if (IsNotNull()) { return System.Data.Entity.Strings.ViewGen_NotNull; } else { StringBuilder builder = new StringBuilder(); bool isFirst = true; foreach (CellConstant constant in m_negatedDomain) { // Skip printing out Null if m_negatedDomain has other values if (m_negatedDomain.Count > 1 && constant.IsNull()) { continue; } if (isFirst == false) { builder.Append(System.Data.Entity.Strings.ViewGen_CommaBlank); } isFirst = false; builder.Append(constant.ToUserString()); } StringBuilder result = new StringBuilder(); result.Append(Strings.ViewGen_NegatedCellConstant_0(builder.ToString())); return result.ToString(); } } internal override void ToCompactString(StringBuilder builder) { // Special code for NOT NULL if (IsNotNull()) { builder.Append("NOT_NULL"); } else { builder.Append("NOT("); StringUtil.ToCommaSeparatedStringSorted(builder, m_negatedDomain); builder.Append(")"); } } #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
- ContractCodeDomInfo.cs
- Substitution.cs
- Bezier.cs
- SpecialTypeDataContract.cs
- Pair.cs
- DragEvent.cs
- OleDbPropertySetGuid.cs
- TextEditorCharacters.cs
- EncodingNLS.cs
- SystemPens.cs
- SqlGatherProducedAliases.cs
- BrushMappingModeValidation.cs
- SmtpMail.cs
- DynamicDocumentPaginator.cs
- FunctionNode.cs
- ProxyAttribute.cs
- CompilerGeneratedAttribute.cs
- ColorConvertedBitmapExtension.cs
- SqlProvider.cs
- PageParserFilter.cs
- JsonWriter.cs
- CreateRefExpr.cs
- HitTestWithPointDrawingContextWalker.cs
- ToolboxBitmapAttribute.cs
- ShutDownListener.cs
- MDIWindowDialog.cs
- EDesignUtil.cs
- OrderByQueryOptionExpression.cs
- XmlAnyElementAttribute.cs
- COAUTHIDENTITY.cs
- XmlAttributeProperties.cs
- UserControlBuildProvider.cs
- Win32Exception.cs
- StoreItemCollection.Loader.cs
- VirtualDirectoryMapping.cs
- AppSettingsReader.cs
- InternalCache.cs
- ListenerConnectionModeReader.cs
- GatewayDefinition.cs
- Region.cs
- PrintPreviewGraphics.cs
- MimeMultiPart.cs
- ContentOperations.cs
- StreamSecurityUpgradeAcceptor.cs
- TextRenderingModeValidation.cs
- GorillaCodec.cs
- StatusBarAutomationPeer.cs
- ConstantExpression.cs
- SplitContainer.cs
- OutputWindow.cs
- JsonReader.cs
- ListViewUpdateEventArgs.cs
- XamlStyleSerializer.cs
- DoWorkEventArgs.cs
- Documentation.cs
- PositiveTimeSpanValidatorAttribute.cs
- CellNormalizer.cs
- ListView.cs
- BindingContext.cs
- ComplusTypeValidator.cs
- SerializationSectionGroup.cs
- SolidBrush.cs
- DataBoundControlHelper.cs
- _RequestLifetimeSetter.cs
- OdbcFactory.cs
- TypedColumnHandler.cs
- KnownAssemblyEntry.cs
- BindableTemplateBuilder.cs
- UpDownEvent.cs
- Math.cs
- DataGridColumnHeadersPresenter.cs
- Size3DValueSerializer.cs
- ObjectDataSourceSelectingEventArgs.cs
- WorkflowCommandExtensionItem.cs
- ButtonChrome.cs
- SizeIndependentAnimationStorage.cs
- FixedFlowMap.cs
- AttachInfo.cs
- SplayTreeNode.cs
- CharStorage.cs
- Helper.cs
- ContractMethodParameterInfo.cs
- UrlAuthFailedErrorFormatter.cs
- PackagingUtilities.cs
- ObjectResult.cs
- StateMachineTimers.cs
- GiveFeedbackEvent.cs
- BooleanConverter.cs
- OneOfTypeConst.cs
- CompositionCommandSet.cs
- ByteConverter.cs
- HttpServerChannel.cs
- StopRoutingHandler.cs
- DataRecordInternal.cs
- AppDomain.cs
- LabelLiteral.cs
- RSAPKCS1KeyExchangeDeformatter.cs
- Attribute.cs
- QueryStringParameter.cs
- ListViewHitTestInfo.cs