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 / Validation / ViewCellRelation.cs / 1 / ViewCellRelation.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Collections.Generic; using System.Data.Mapping.ViewGeneration.Structures; using System.Text; using System.Data.Common.Utils; namespace System.Data.Mapping.ViewGeneration.Validation { ////// Represents a relation signature that lists all projected /// slots of two cell queries in a cell after projection. So if /// SPerson1.Disc is present in the cellquery (and part of the where /// clause) but not in the projected slots, it is missing from a ViewCellRelation /// internal class ViewCellRelation : CellRelation { #region Constructor // effects: Creates a view cell relation for "cell" with the // projected slots given by slots -- cellNumber is the number of the // cell for debugging purposes // Also creates the BasicCellRelations for the left and right cell queries internal ViewCellRelation(Cell cell, Listslots, int cellNumber) : base(cellNumber) { m_cell = cell; m_slots = slots; // We create the basiccellrelations passing this to it so that we have // a reference from the basiccellrelations to this m_cell.CQuery.CreateBasicCellRelation(this); m_cell.SQuery.CreateBasicCellRelation(this); } #endregion #region Fields private Cell m_cell; // The cell for which this relation exists private List m_slots; // Slots projected from both cell queries #endregion #region Properties internal Cell Cell { get { return m_cell; } } #endregion #region Methods // requires: slot corresponds to a slot in the corresponding // BasicCellRelation // effects: Given a slot in the corresponding basicCellRelation, // looks up the slot in this viewcellrelation and returns it. Returns // null if it does not find the slot in the left or right side of the viewrelation internal ViewCellSlot LookupViewSlot(JoinTreeSlot slot) { // CHANGE_[....]_IMPROVE: We could have a dictionary to speed this up foreach (ViewCellSlot viewSlot in m_slots) { // If the left or right slots are equal, return the viewSlot if (ProjectedSlot.EqualityComparer.Equals(slot, viewSlot.CSlot) || ProjectedSlot.EqualityComparer.Equals(slot, viewSlot.SSlot)) { return viewSlot; } } return null; } protected override int GetHash() { // Note: Using CLR-Hashcode return m_cell.GetHashCode(); // We need not hash the slots, etc - cell should give us enough // differentiation and land the relation into the same bucket } internal override void ToCompactString(StringBuilder builder) { builder.Append("ViewRel["); m_cell.ToCompactString(builder); // StringUtil.ToSeparatedStringSorted(builder, m_slots, ", "); 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.Mapping.ViewGeneration.Structures; using System.Text; using System.Data.Common.Utils; namespace System.Data.Mapping.ViewGeneration.Validation { ////// Represents a relation signature that lists all projected /// slots of two cell queries in a cell after projection. So if /// SPerson1.Disc is present in the cellquery (and part of the where /// clause) but not in the projected slots, it is missing from a ViewCellRelation /// internal class ViewCellRelation : CellRelation { #region Constructor // effects: Creates a view cell relation for "cell" with the // projected slots given by slots -- cellNumber is the number of the // cell for debugging purposes // Also creates the BasicCellRelations for the left and right cell queries internal ViewCellRelation(Cell cell, Listslots, int cellNumber) : base(cellNumber) { m_cell = cell; m_slots = slots; // We create the basiccellrelations passing this to it so that we have // a reference from the basiccellrelations to this m_cell.CQuery.CreateBasicCellRelation(this); m_cell.SQuery.CreateBasicCellRelation(this); } #endregion #region Fields private Cell m_cell; // The cell for which this relation exists private List m_slots; // Slots projected from both cell queries #endregion #region Properties internal Cell Cell { get { return m_cell; } } #endregion #region Methods // requires: slot corresponds to a slot in the corresponding // BasicCellRelation // effects: Given a slot in the corresponding basicCellRelation, // looks up the slot in this viewcellrelation and returns it. Returns // null if it does not find the slot in the left or right side of the viewrelation internal ViewCellSlot LookupViewSlot(JoinTreeSlot slot) { // CHANGE_[....]_IMPROVE: We could have a dictionary to speed this up foreach (ViewCellSlot viewSlot in m_slots) { // If the left or right slots are equal, return the viewSlot if (ProjectedSlot.EqualityComparer.Equals(slot, viewSlot.CSlot) || ProjectedSlot.EqualityComparer.Equals(slot, viewSlot.SSlot)) { return viewSlot; } } return null; } protected override int GetHash() { // Note: Using CLR-Hashcode return m_cell.GetHashCode(); // We need not hash the slots, etc - cell should give us enough // differentiation and land the relation into the same bucket } internal override void ToCompactString(StringBuilder builder) { builder.Append("ViewRel["); m_cell.ToCompactString(builder); // StringUtil.ToSeparatedStringSorted(builder, m_slots, ", "); 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
- WindowsRichEdit.cs
- PageThemeBuildProvider.cs
- DBParameter.cs
- GenericRootAutomationPeer.cs
- DbProviderFactories.cs
- TCEAdapterGenerator.cs
- TableAdapterManagerHelper.cs
- CodeIndexerExpression.cs
- ControlAdapter.cs
- HwndSource.cs
- SmiMetaData.cs
- DataSetFieldSchema.cs
- GACIdentityPermission.cs
- Subset.cs
- PeerContact.cs
- pingexception.cs
- ValidatorUtils.cs
- DesignTimeVisibleAttribute.cs
- AuthorizationRuleCollection.cs
- LocationUpdates.cs
- SqlXmlStorage.cs
- ListView.cs
- HtmlControlPersistable.cs
- ScrollBarAutomationPeer.cs
- TransactedReceiveScope.cs
- TreeNode.cs
- IdnElement.cs
- SplashScreen.cs
- AndCondition.cs
- ConfigurationManagerHelperFactory.cs
- RestClientProxyHandler.cs
- XmlCompatibilityReader.cs
- SchemaImporterExtensionsSection.cs
- TemplateControlCodeDomTreeGenerator.cs
- TypeInitializationException.cs
- HyperLink.cs
- SimpleMailWebEventProvider.cs
- AddInSegmentDirectoryNotFoundException.cs
- ObjectStateEntryDbDataRecord.cs
- Validator.cs
- MimeMapping.cs
- BypassElement.cs
- DataGrid.cs
- ContainerSelectorBehavior.cs
- DaylightTime.cs
- EntitySqlQueryBuilder.cs
- InstanceKeyCollisionException.cs
- UnitySerializationHolder.cs
- EventRoute.cs
- EffectiveValueEntry.cs
- CheckBox.cs
- PartitionerStatic.cs
- DesignerActionTextItem.cs
- OracleInternalConnection.cs
- RegexCharClass.cs
- ConfigurationValues.cs
- FormsAuthenticationUserCollection.cs
- Matrix3D.cs
- SetIterators.cs
- IOException.cs
- DataGridViewDataConnection.cs
- ProcessRequestArgs.cs
- SecurityRuntime.cs
- DocumentReferenceCollection.cs
- DynamicMetaObjectBinder.cs
- AsymmetricSignatureFormatter.cs
- InternalRelationshipCollection.cs
- TypeUtil.cs
- dbenumerator.cs
- AttachmentService.cs
- ping.cs
- XmlBinaryWriterSession.cs
- AdornerHitTestResult.cs
- ListViewItem.cs
- Keywords.cs
- XpsException.cs
- LiteralTextParser.cs
- ActivationService.cs
- DocumentReference.cs
- ToolboxItemAttribute.cs
- HScrollProperties.cs
- ListMarkerLine.cs
- AsymmetricAlgorithm.cs
- XPathParser.cs
- IndexOutOfRangeException.cs
- SmtpFailedRecipientsException.cs
- WorkflowOwnershipException.cs
- RotateTransform3D.cs
- OleDbConnectionPoolGroupProviderInfo.cs
- DataGridViewCellEventArgs.cs
- ScrollData.cs
- ForceCopyBuildProvider.cs
- SmtpTransport.cs
- SafeEventLogReadHandle.cs
- BitmapEffectInput.cs
- SafeHandles.cs
- NativeCompoundFileAPIs.cs
- HistoryEventArgs.cs
- FontStretches.cs
- HttpCookiesSection.cs