Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / ndp / fx / src / DataEntity / System / Data / Map / ViewGeneration / Structures / NegatedCellConstant.cs / 1 / 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
- XmlResolver.cs
- ScrollPattern.cs
- QilStrConcatenator.cs
- CategoriesDocumentFormatter.cs
- PostBackOptions.cs
- XPathNodeInfoAtom.cs
- IpcManager.cs
- VerticalConnector.xaml.cs
- ReferenceSchema.cs
- _SpnDictionary.cs
- BinHexEncoder.cs
- CopyOfAction.cs
- InstalledVoice.cs
- PackageFilter.cs
- GiveFeedbackEvent.cs
- ExpandSegmentCollection.cs
- SocketPermission.cs
- Nodes.cs
- ImagingCache.cs
- EventLog.cs
- StringAttributeCollection.cs
- SqlFacetAttribute.cs
- ItemsPresenter.cs
- CurrentTimeZone.cs
- MD5HashHelper.cs
- DodSequenceMerge.cs
- LayoutEditorPart.cs
- DocumentScope.cs
- DomainUpDown.cs
- PropertyItem.cs
- TTSEvent.cs
- ContextQuery.cs
- SplineKeyFrames.cs
- TypeNameConverter.cs
- sitestring.cs
- OutOfMemoryException.cs
- MulticastOption.cs
- WSAddressing10ProblemHeaderQNameFault.cs
- Transform3DCollection.cs
- xmlsaver.cs
- SynchronizationLockException.cs
- Literal.cs
- OnOperation.cs
- PbrsForward.cs
- MbpInfo.cs
- PassportPrincipal.cs
- Pen.cs
- AppDomainShutdownMonitor.cs
- ConsoleEntryPoint.cs
- DataListDesigner.cs
- AssemblyAttributes.cs
- WebPartConnectionsEventArgs.cs
- TextEditorParagraphs.cs
- ReadOnlyCollectionBase.cs
- ErrorProvider.cs
- MessageLogger.cs
- GACMembershipCondition.cs
- CurrencyManager.cs
- SizeConverter.cs
- SubstitutionList.cs
- NameTable.cs
- PenLineJoinValidation.cs
- TextTreeTextBlock.cs
- CodeTypeReference.cs
- Substitution.cs
- FormsAuthenticationModule.cs
- mediaeventargs.cs
- DataTemplateKey.cs
- SharedStatics.cs
- DictionaryItemsCollection.cs
- OpenTypeLayout.cs
- Char.cs
- ContentTextAutomationPeer.cs
- DataColumnPropertyDescriptor.cs
- Transform3D.cs
- Block.cs
- GlobalizationSection.cs
- TraceProvider.cs
- HelpPage.cs
- AdapterUtil.cs
- XmlSchemaParticle.cs
- ConnectionStringSettingsCollection.cs
- CqlWriter.cs
- BinaryParser.cs
- TableLayoutSettingsTypeConverter.cs
- RecognizedPhrase.cs
- SpellCheck.cs
- ObjectQueryExecutionPlan.cs
- WithStatement.cs
- FileLogRecordHeader.cs
- QuaternionAnimationBase.cs
- SystemWebExtensionsSectionGroup.cs
- PartitionerQueryOperator.cs
- DataColumn.cs
- TypedTableHandler.cs
- XmlAttributeCache.cs
- LinkArea.cs
- NativeMethods.cs
- CollectionConverter.cs
- ViewManager.cs