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 / Validation / ViewCellRelation.cs / 2 / 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
- Console.cs
- RoutedPropertyChangedEventArgs.cs
- SQLMoneyStorage.cs
- EventBuilder.cs
- LicenseProviderAttribute.cs
- XmlTextWriter.cs
- PointConverter.cs
- WebPartConnectionsCloseVerb.cs
- LocalizationParserHooks.cs
- SqlTopReducer.cs
- ProcessThread.cs
- Timer.cs
- CompilationUtil.cs
- Sql8ConformanceChecker.cs
- XhtmlConformanceSection.cs
- Oid.cs
- TreeNodeStyleCollection.cs
- ExpressionList.cs
- dbdatarecord.cs
- AssemblyAttributesGoHere.cs
- datacache.cs
- PropertyGeneratedEventArgs.cs
- XamlClipboardData.cs
- _LocalDataStore.cs
- WindowsAuthenticationModule.cs
- WorkflowCompensationBehavior.cs
- MobileCategoryAttribute.cs
- ColorAnimation.cs
- SqlOuterApplyReducer.cs
- Volatile.cs
- CompatibleComparer.cs
- CodeDomDecompiler.cs
- RotateTransform.cs
- HiddenFieldPageStatePersister.cs
- QueryTask.cs
- RegistryPermission.cs
- QueryRewriter.cs
- SimpleType.cs
- StreamGeometry.cs
- DataGridViewSelectedColumnCollection.cs
- ZipIOExtraFieldPaddingElement.cs
- KeyEvent.cs
- HotSpot.cs
- Clipboard.cs
- DropDownHolder.cs
- SingleAnimationBase.cs
- SqlDataSourceCommandParser.cs
- SchemaAttDef.cs
- VBCodeProvider.cs
- PropertyEntry.cs
- WebCategoryAttribute.cs
- FacetChecker.cs
- DropDownButton.cs
- IfAction.cs
- ScrollChrome.cs
- TransformPatternIdentifiers.cs
- BodyWriter.cs
- WebPartUtil.cs
- SystemFonts.cs
- HttpHeaderCollection.cs
- SchemaNamespaceManager.cs
- ApplicationFileParser.cs
- ConfigurationValues.cs
- AdornerHitTestResult.cs
- WindowsUpDown.cs
- DefinitionBase.cs
- WsatEtwTraceListener.cs
- ContextProperty.cs
- ComPlusTraceRecord.cs
- EventSourceCreationData.cs
- OutputCacheSettings.cs
- Size.cs
- ObjectNavigationPropertyMapping.cs
- ToolStripComboBox.cs
- Quad.cs
- User.cs
- SizeKeyFrameCollection.cs
- TableCell.cs
- EntityWrapper.cs
- HtmlInputCheckBox.cs
- NetworkInterface.cs
- CompatibleComparer.cs
- SqlBuilder.cs
- XmlWrappingReader.cs
- ParseHttpDate.cs
- DialogResultConverter.cs
- SecurityState.cs
- SoapMessage.cs
- ParagraphVisual.cs
- SqlDataSourceStatusEventArgs.cs
- ProfilePropertyMetadata.cs
- BypassElement.cs
- FileLoadException.cs
- _HeaderInfo.cs
- VectorKeyFrameCollection.cs
- TabControl.cs
- CharacterMetricsDictionary.cs
- InternalConfigRoot.cs
- CurrencyManager.cs
- EmbeddedMailObject.cs