Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataEntity / System / Data / Common / Utils / Boolean / DomainConstraint.cs / 1305376 / DomainConstraint.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Diagnostics; namespace System.Data.Common.Utils.Boolean { ////// Represents a variable with finite domain, e.g., c in {1, 2, 3} /// ///Type of domain variables (int in the above example). ///Type of the identifier (c above -- it need not be int). internal class DomainVariable{ private readonly T_Variable _identifier; private readonly Set _domain; private readonly int _hashCode; private readonly IEqualityComparer _identifierComparer; /// /// Constructs a new domain variable. /// /// Identifier /// Domain of variable. /// Comparer of identifier internal DomainVariable(T_Variable identifier, Setdomain, IEqualityComparer identifierComparer) { Debug.Assert(null != identifier && null != domain); _identifier = identifier; _domain = domain.AsReadOnly(); _identifierComparer = identifierComparer ?? EqualityComparer .Default; int domainHashCode = _domain.GetElementsHashCode(); int identifierHashCode = _identifierComparer.GetHashCode(_identifier); _hashCode = domainHashCode ^ identifierHashCode; } internal DomainVariable(T_Variable identifier, Set domain) : this(identifier, domain, null) { } /// /// Gets the variable. /// internal T_Variable Identifier { get { return _identifier; } } ////// Gets the domain of this variable. /// internal SetDomain { get { return _domain; } } public override int GetHashCode() { return _hashCode; } public override bool Equals(object obj) { if (Object.ReferenceEquals(this, obj)) { return true; } DomainVariable other = obj as DomainVariable ; if (null == other) { return false; } if (_hashCode != other._hashCode) { return false; } return (_identifierComparer.Equals(_identifier, other._identifier) && _domain.SetEquals(other._domain)); } public override string ToString() { return StringUtil.FormatInvariant("{0}{{{1}}}", _identifier.ToString(), _domain); } } /// /// Represents a constraint of the form: /// /// Var1 in Range /// ///Type of range elements. ///Type of the variable. internal class DomainConstraint{ private readonly DomainVariable _variable; private readonly Set _range; private readonly int _hashCode; /// /// Constructs a new constraint for the given variable and range. /// /// Variable in constraint. /// Range of constraint. internal DomainConstraint(DomainVariablevariable, Set range) { Debug.Assert(null != variable && null != range); _variable = variable; _range = range.AsReadOnly(); _hashCode = _variable.GetHashCode() ^ _range.GetElementsHashCode(); } /// /// Constructor supporting a singleton range domain constraint /// internal DomainConstraint(DomainVariablevariable, T_Element element) : this(variable, new Set (new T_Element[] { element }).MakeReadOnly()) { } /// /// Gets the variable for this constraint. /// internal DomainVariableVariable { get { return _variable; } } /// /// Get the range for this constraint. /// internal SetRange { get { return _range; } } /// /// Inverts this constraint (this iff. !result) /// !(Var in Range) iff. Var in (Var.Domain - Range) /// ///internal DomainConstraint InvertDomainConstraint() { return new DomainConstraint (_variable, _variable.Domain.Difference(_range).AsReadOnly()); } public override bool Equals(object obj) { if (Object.ReferenceEquals(this, obj)) { return true; } DomainConstraint other = obj as DomainConstraint ; if (null == other) { return false; } if (_hashCode != other._hashCode) { return false; } return (_range.SetEquals(other._range) && _variable.Equals(other._variable)); } public override int GetHashCode() { return _hashCode; } public override string ToString() { return StringUtil.FormatInvariant("{0} in [{1}]", _variable, _range); } } } // 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
- FocusTracker.cs
- ExpressionBuilderCollection.cs
- ConnectionStringsSection.cs
- SmtpSection.cs
- Stopwatch.cs
- XslTransform.cs
- ConfigsHelper.cs
- ContentElement.cs
- DefinitionBase.cs
- AvTraceDetails.cs
- regiisutil.cs
- CompilerGeneratedAttribute.cs
- ByteConverter.cs
- RegexWorker.cs
- Propagator.JoinPropagator.cs
- DbMetaDataCollectionNames.cs
- OleDbPermission.cs
- sqlpipe.cs
- OleDbError.cs
- EarlyBoundInfo.cs
- WebPartConnection.cs
- SessionPageStateSection.cs
- MenuCommandService.cs
- OrderByBuilder.cs
- TripleDESCryptoServiceProvider.cs
- RenderData.cs
- CodeIterationStatement.cs
- DockProviderWrapper.cs
- UTF32Encoding.cs
- ScriptReferenceEventArgs.cs
- HtmlTableCell.cs
- SmiMetaData.cs
- GridViewCommandEventArgs.cs
- CustomTypeDescriptor.cs
- ContainerParaClient.cs
- securitycriticaldata.cs
- ValueOfAction.cs
- ElementProxy.cs
- Convert.cs
- SystemPens.cs
- ValidatorCompatibilityHelper.cs
- UpdateManifestForBrowserApplication.cs
- TerminatorSinks.cs
- SchemaImporterExtensionElementCollection.cs
- DbConnectionFactory.cs
- DBCommandBuilder.cs
- ZipIOLocalFileBlock.cs
- AsymmetricKeyExchangeDeformatter.cs
- TrustManagerMoreInformation.cs
- FontFamily.cs
- IItemProperties.cs
- UpdatePanelTrigger.cs
- XmlCompatibilityReader.cs
- GridViewCancelEditEventArgs.cs
- GridViewSelectEventArgs.cs
- XPathDocumentBuilder.cs
- MultipleViewPattern.cs
- DesignTimeParseData.cs
- CachingHintValidation.cs
- GPRECT.cs
- TaskCanceledException.cs
- SafeMILHandle.cs
- Property.cs
- SecuritySessionSecurityTokenAuthenticator.cs
- AssemblyAttributesGoHere.cs
- GridEntry.cs
- WebServiceResponseDesigner.cs
- ListViewAutomationPeer.cs
- TextEmbeddedObject.cs
- VectorConverter.cs
- BigIntegerStorage.cs
- AnnotationService.cs
- ServiceMetadataBehavior.cs
- AccessDataSource.cs
- WebPartHeaderCloseVerb.cs
- Pkcs7Recipient.cs
- Shared.cs
- EntityWrapperFactory.cs
- TextElementEnumerator.cs
- ModuleConfigurationInfo.cs
- UrlUtility.cs
- EntityUtil.cs
- Part.cs
- TagPrefixCollection.cs
- Wizard.cs
- DateTimeSerializationSection.cs
- HttpCacheVary.cs
- SR.cs
- PenContext.cs
- Property.cs
- UICuesEvent.cs
- IntSecurity.cs
- ExpressionBuilder.cs
- ToolStripDropDownButton.cs
- FacetValueContainer.cs
- XmlArrayItemAttribute.cs
- BitmapData.cs
- Matrix3DConverter.cs
- SwitchAttribute.cs
- PageThemeBuildProvider.cs