Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / 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
- User.cs
- ProxyGenerator.cs
- DrawingGroup.cs
- InstanceDescriptor.cs
- UpdateTranslator.cs
- ConstrainedDataObject.cs
- CompiledAction.cs
- CodeAssignStatement.cs
- OperationContextScope.cs
- FormatterConverter.cs
- ArgumentReference.cs
- EntityDataSourceSelectedEventArgs.cs
- RestHandler.cs
- SystemIPAddressInformation.cs
- Int64.cs
- PackageDigitalSignature.cs
- Polyline.cs
- ExecutionEngineException.cs
- ConnectionStringsExpressionBuilder.cs
- StringPropertyBuilder.cs
- TemplateInstanceAttribute.cs
- ClientFormsIdentity.cs
- RPIdentityRequirement.cs
- OperationInvokerBehavior.cs
- DPAPIProtectedConfigurationProvider.cs
- HttpModuleAction.cs
- SingleBodyParameterMessageFormatter.cs
- BitmapDecoder.cs
- PackUriHelper.cs
- ArgIterator.cs
- XmlAttributes.cs
- CodeGenerator.cs
- PageEventArgs.cs
- GestureRecognizer.cs
- IIS7UserPrincipal.cs
- EnterpriseServicesHelper.cs
- MergeFailedEvent.cs
- RuleDefinitions.cs
- DataControlFieldCollection.cs
- TextClipboardData.cs
- ClassHandlersStore.cs
- Command.cs
- InlineObject.cs
- CommandManager.cs
- Decimal.cs
- DependencyPropertyValueSerializer.cs
- Converter.cs
- EnumerableRowCollection.cs
- HttpRuntimeSection.cs
- CodeExporter.cs
- UnsafeNativeMethodsCLR.cs
- AlgoModule.cs
- CompositeDataBoundControl.cs
- VirtualDirectoryMapping.cs
- RowUpdatedEventArgs.cs
- StorageConditionPropertyMapping.cs
- PropertyPushdownHelper.cs
- SessionStateContainer.cs
- BaseServiceProvider.cs
- DecoderBestFitFallback.cs
- DispatcherEventArgs.cs
- TryExpression.cs
- BuilderElements.cs
- CuspData.cs
- oledbmetadatacollectionnames.cs
- ViewLoader.cs
- OracleCommand.cs
- RegexMatch.cs
- InputScope.cs
- EncoderParameters.cs
- RunClient.cs
- StorageEntityTypeMapping.cs
- BitmapEffectvisualstate.cs
- PropertyGridView.cs
- TextElement.cs
- Zone.cs
- UInt16Converter.cs
- Camera.cs
- Identifier.cs
- XmlQuerySequence.cs
- SharedConnectionInfo.cs
- ProtocolImporter.cs
- VirtualPathProvider.cs
- ProxyWebPartConnectionCollection.cs
- BinaryFormatterWriter.cs
- MemberMaps.cs
- ToolStripCustomTypeDescriptor.cs
- CrossSiteScriptingValidation.cs
- DataGrid.cs
- TextViewSelectionProcessor.cs
- Viewport3DVisual.cs
- StyleXamlParser.cs
- GradientBrush.cs
- DriveNotFoundException.cs
- SimpleWebHandlerParser.cs
- PlainXmlDeserializer.cs
- MenuEventArgs.cs
- ConfigXmlWhitespace.cs
- SerialReceived.cs
- PlainXmlWriter.cs