Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / Orcas / QFE / ndp / fx / src / DataEntity / System / Data / Map / ViewGeneration / Structures / BoolLiteral.cs / 2 / BoolLiteral.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Data.Common.Utils; using System.Data.Common.Utils.Boolean; using System.Collections.Generic; using System.Text; using System.Diagnostics; using System.Linq; namespace System.Data.Mapping.ViewGeneration.Structures { using DomainBoolExpr = BoolExpr>; using DomainNotExpr = NotExpr >; using DomainTermExpr = TermExpr >; // A class that "ties" up all the literals in boolean expressions -- // e.g., OneOfConst and CellIdBoolean derive from it // Conditions represented by BoolLiterals need to be synchronized with DomainConstraints, // which may be modified upon calling ExpensiveSimplify. This is what // the method FixRange is used for. internal abstract class BoolLiteral : InternalBase { #region Fields internal static readonly IEqualityComparer EqualityComparer = new BoolLiteralComparer(); internal static readonly IEqualityComparer EqualityIdentifierComparer = new IdentifierComparer(); #endregion #region methods // effects: Creates a term expression of the form: "literal in range with all possible values being domain" internal static DomainTermExpr MakeTermExpression(BoolLiteral literal, IEnumerable domain, IEnumerable range) { Set domainSet = new Set (domain, CellConstant.EqualityComparer); domainSet.MakeReadOnly(); DomainVariable variable = new DomainVariable (literal, domainSet, EqualityIdentifierComparer); Set rangeSet = new Set (range, CellConstant.EqualityComparer); rangeSet.MakeReadOnly(); DomainConstraint constraint = new DomainConstraint (variable, rangeSet); DomainTermExpr result = new DomainTermExpr(EqualityComparer >.Default, constraint); return result; } // effects: Fixes the range of this using the new values provided in // range and returns a boolean expression corresponding to the new value internal abstract DomainBoolExpr FixRange(Set range, MemberDomainMap memberDomainMap); internal abstract DomainBoolExpr GetDomainBoolExpression(MemberDomainMap domainMap); // effects: See BoolExpression.RemapBool internal abstract BoolLiteral RemapBool(Dictionary remap); // effects: See BoolExpression.GetRequiredSlots internal abstract void GetRequiredSlots(MemberPathMapBase projectedSlotMap, bool[] requiredSlots); // effects: See BoolExpression.AsCql internal abstract StringBuilder AsCql(StringBuilder builder, string blockAlias, bool canSkipIsNotNull); internal abstract StringBuilder AsUserString(StringBuilder builder, string blockAlias, bool canSkipIsNotNull); internal abstract StringBuilder AsNegatedUserString(StringBuilder builder, string blockAlias, bool canSkipIsNotNull); // effects: Checks if the identifier in this is the same as the one in right protected virtual bool IsIdentifierEqualTo(BoolLiteral right) { return IsEqualTo(right); } // effects: Get the hash code based on the identifier protected virtual int GetIdentifierHash() { return GetHash(); } protected abstract bool IsEqualTo(BoolLiteral right); protected abstract int GetHash(); #endregion #region Comparer class // This class compares boolean expressions private class BoolLiteralComparer : IEqualityComparer { public bool Equals(BoolLiteral left, BoolLiteral right) { // Quick check with references if (object.ReferenceEquals(left, right)) { // Gets the Null and Undefined case as well return true; } // One of them is non-null at least if (left == null || right == null) { return false; } // Both are non-null at this point return left.IsEqualTo(right); } public int GetHashCode(BoolLiteral literal) { return literal.GetHash(); } } #endregion #region Identifier Comparer class // This class compares just the identifier in boolean expressions private class IdentifierComparer : IEqualityComparer { public bool Equals(BoolLiteral left, BoolLiteral right) { // Quick check with references if (object.ReferenceEquals(left, right)) { // Gets the Null and Undefined case as well return true; } // One of them is non-null at least if (left == null || right == null) { return false; } // Both are non-null at this point return left.IsIdentifierEqualTo(right); } public int GetHashCode(BoolLiteral literal) { return literal.GetIdentifierHash(); } } #endregion } internal abstract class TrueFalseLiteral : BoolLiteral { internal override DomainBoolExpr GetDomainBoolExpression(MemberDomainMap domainMap) { // Essentially say that the variable can take values true or false and here its value is only true IEnumerable actualValues = new CellConstant[] { new ScalarConstant(true) }; IEnumerable possibleValues = new CellConstant[] { new ScalarConstant(true), new ScalarConstant(false) }; Set variableDomain = new Set (possibleValues, CellConstant.EqualityComparer).MakeReadOnly(); Set thisDomain = new Set (actualValues, CellConstant.EqualityComparer).MakeReadOnly(); DomainTermExpr result = MakeTermExpression(this, variableDomain, thisDomain); return result; } // effects: Fixes the range of this using the new values provided in // range and returns a boolean expression corresponding to the new value internal override DomainBoolExpr FixRange(Set range, MemberDomainMap memberDomainMap) { Debug.Assert(range.Count == 1, "For BoolLiterals, there should be precisely one value - true or false"); ScalarConstant scalar = (ScalarConstant)range.First(); DomainBoolExpr expr = GetDomainBoolExpression(memberDomainMap); if ((bool)scalar.Value == false) { // The range of the variable was "inverted". Return a NOT of // the expression expr = new DomainNotExpr(expr); } return expr; } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- // // Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Data.Common.Utils; using System.Data.Common.Utils.Boolean; using System.Collections.Generic; using System.Text; using System.Diagnostics; using System.Linq; namespace System.Data.Mapping.ViewGeneration.Structures { using DomainBoolExpr = BoolExpr>; using DomainNotExpr = NotExpr >; using DomainTermExpr = TermExpr >; // A class that "ties" up all the literals in boolean expressions -- // e.g., OneOfConst and CellIdBoolean derive from it // Conditions represented by BoolLiterals need to be synchronized with DomainConstraints, // which may be modified upon calling ExpensiveSimplify. This is what // the method FixRange is used for. internal abstract class BoolLiteral : InternalBase { #region Fields internal static readonly IEqualityComparer EqualityComparer = new BoolLiteralComparer(); internal static readonly IEqualityComparer EqualityIdentifierComparer = new IdentifierComparer(); #endregion #region methods // effects: Creates a term expression of the form: "literal in range with all possible values being domain" internal static DomainTermExpr MakeTermExpression(BoolLiteral literal, IEnumerable domain, IEnumerable range) { Set domainSet = new Set (domain, CellConstant.EqualityComparer); domainSet.MakeReadOnly(); DomainVariable variable = new DomainVariable (literal, domainSet, EqualityIdentifierComparer); Set rangeSet = new Set (range, CellConstant.EqualityComparer); rangeSet.MakeReadOnly(); DomainConstraint constraint = new DomainConstraint (variable, rangeSet); DomainTermExpr result = new DomainTermExpr(EqualityComparer >.Default, constraint); return result; } // effects: Fixes the range of this using the new values provided in // range and returns a boolean expression corresponding to the new value internal abstract DomainBoolExpr FixRange(Set range, MemberDomainMap memberDomainMap); internal abstract DomainBoolExpr GetDomainBoolExpression(MemberDomainMap domainMap); // effects: See BoolExpression.RemapBool internal abstract BoolLiteral RemapBool(Dictionary remap); // effects: See BoolExpression.GetRequiredSlots internal abstract void GetRequiredSlots(MemberPathMapBase projectedSlotMap, bool[] requiredSlots); // effects: See BoolExpression.AsCql internal abstract StringBuilder AsCql(StringBuilder builder, string blockAlias, bool canSkipIsNotNull); internal abstract StringBuilder AsUserString(StringBuilder builder, string blockAlias, bool canSkipIsNotNull); internal abstract StringBuilder AsNegatedUserString(StringBuilder builder, string blockAlias, bool canSkipIsNotNull); // effects: Checks if the identifier in this is the same as the one in right protected virtual bool IsIdentifierEqualTo(BoolLiteral right) { return IsEqualTo(right); } // effects: Get the hash code based on the identifier protected virtual int GetIdentifierHash() { return GetHash(); } protected abstract bool IsEqualTo(BoolLiteral right); protected abstract int GetHash(); #endregion #region Comparer class // This class compares boolean expressions private class BoolLiteralComparer : IEqualityComparer { public bool Equals(BoolLiteral left, BoolLiteral right) { // Quick check with references if (object.ReferenceEquals(left, right)) { // Gets the Null and Undefined case as well return true; } // One of them is non-null at least if (left == null || right == null) { return false; } // Both are non-null at this point return left.IsEqualTo(right); } public int GetHashCode(BoolLiteral literal) { return literal.GetHash(); } } #endregion #region Identifier Comparer class // This class compares just the identifier in boolean expressions private class IdentifierComparer : IEqualityComparer { public bool Equals(BoolLiteral left, BoolLiteral right) { // Quick check with references if (object.ReferenceEquals(left, right)) { // Gets the Null and Undefined case as well return true; } // One of them is non-null at least if (left == null || right == null) { return false; } // Both are non-null at this point return left.IsIdentifierEqualTo(right); } public int GetHashCode(BoolLiteral literal) { return literal.GetIdentifierHash(); } } #endregion } internal abstract class TrueFalseLiteral : BoolLiteral { internal override DomainBoolExpr GetDomainBoolExpression(MemberDomainMap domainMap) { // Essentially say that the variable can take values true or false and here its value is only true IEnumerable actualValues = new CellConstant[] { new ScalarConstant(true) }; IEnumerable possibleValues = new CellConstant[] { new ScalarConstant(true), new ScalarConstant(false) }; Set variableDomain = new Set (possibleValues, CellConstant.EqualityComparer).MakeReadOnly(); Set thisDomain = new Set (actualValues, CellConstant.EqualityComparer).MakeReadOnly(); DomainTermExpr result = MakeTermExpression(this, variableDomain, thisDomain); return result; } // effects: Fixes the range of this using the new values provided in // range and returns a boolean expression corresponding to the new value internal override DomainBoolExpr FixRange(Set range, MemberDomainMap memberDomainMap) { Debug.Assert(range.Count == 1, "For BoolLiterals, there should be precisely one value - true or false"); ScalarConstant scalar = (ScalarConstant)range.First(); DomainBoolExpr expr = GetDomainBoolExpression(memberDomainMap); if ((bool)scalar.Value == false) { // The range of the variable was "inverted". Return a NOT of // the expression expr = new DomainNotExpr(expr); } return expr; } } } // 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
- _SslStream.cs
- TypeBrowser.xaml.cs
- Substitution.cs
- SplitContainer.cs
- XmlTypeAttribute.cs
- LocalValueEnumerator.cs
- XmlQueryTypeFactory.cs
- UxThemeWrapper.cs
- ScriptMethodAttribute.cs
- MSG.cs
- CompleteWizardStep.cs
- NeutralResourcesLanguageAttribute.cs
- SendMessageContent.cs
- XappLauncher.cs
- UserNamePasswordServiceCredential.cs
- TextFormatterHost.cs
- StatusBarItemAutomationPeer.cs
- ComponentCache.cs
- SqlFactory.cs
- MatrixAnimationUsingPath.cs
- PipelineDeploymentState.cs
- WasEndpointConfigContainer.cs
- DesignerLoader.cs
- ThreadSafeList.cs
- Label.cs
- XmlConvert.cs
- ProcessProtocolHandler.cs
- XamlTypeMapperSchemaContext.cs
- PreviewPrintController.cs
- RawKeyboardInputReport.cs
- ProviderUtil.cs
- DataListItemEventArgs.cs
- DesignerSerializationOptionsAttribute.cs
- PersonalizationAdministration.cs
- TemplateBamlTreeBuilder.cs
- LogicalTreeHelper.cs
- WorkflowMessageEventArgs.cs
- EntityException.cs
- EntityDesignerDataSourceView.cs
- FixedSOMContainer.cs
- OpenFileDialog.cs
- SemanticAnalyzer.cs
- OleDbErrorCollection.cs
- TemplatedAdorner.cs
- CodeIterationStatement.cs
- ConfigXmlComment.cs
- DataServiceHostWrapper.cs
- DoubleCollectionConverter.cs
- SiteMapNodeItem.cs
- PictureBox.cs
- XmlBindingWorker.cs
- SpecularMaterial.cs
- HtmlWindow.cs
- ObjectKeyFrameCollection.cs
- ReliableOutputSessionChannel.cs
- BaseTemplateBuildProvider.cs
- SQLSingleStorage.cs
- LogicalTreeHelper.cs
- DesignerMetadata.cs
- OleDbCommand.cs
- EventRouteFactory.cs
- ThemeConfigurationDialog.cs
- PropertyManager.cs
- HtmlShim.cs
- PrintingPermission.cs
- IdentityManager.cs
- WindowsToolbarAsMenu.cs
- EndpointDiscoveryMetadata11.cs
- XPathExpr.cs
- OutputCacheSettings.cs
- PageOutputColor.cs
- EditingCoordinator.cs
- NotifyIcon.cs
- FileSystemWatcher.cs
- EventSinkActivityDesigner.cs
- FixedSchema.cs
- PropertyConverter.cs
- XmlTypeMapping.cs
- SystemNetHelpers.cs
- CaseInsensitiveHashCodeProvider.cs
- ScriptComponentDescriptor.cs
- DictionaryContent.cs
- CustomUserNameSecurityTokenAuthenticator.cs
- SafeReadContext.cs
- GiveFeedbackEventArgs.cs
- DispatcherEventArgs.cs
- CachedFontFace.cs
- AuthenticationModulesSection.cs
- QilStrConcatenator.cs
- MembershipPasswordException.cs
- ScrollChrome.cs
- GridViewCellAutomationPeer.cs
- BaseDataListDesigner.cs
- sortedlist.cs
- Rectangle.cs
- SafeBitVector32.cs
- EntitySetBaseCollection.cs
- WinCategoryAttribute.cs
- TextElementEnumerator.cs
- NavigateUrlConverter.cs