Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / 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
- DeviceContext.cs
- SelectionRange.cs
- PropertyValueChangedEvent.cs
- SelectionEditor.cs
- LinqDataSourceDeleteEventArgs.cs
- ToolStripPanel.cs
- StdValidatorsAndConverters.cs
- Opcode.cs
- ResourceAssociationType.cs
- DocumentXmlWriter.cs
- FixedSOMPageConstructor.cs
- Pts.cs
- ResponseStream.cs
- ClientViaElement.cs
- NameValueFileSectionHandler.cs
- CatalogPart.cs
- Keywords.cs
- NameValuePair.cs
- AuthenticationSection.cs
- ResourceContainerWrapper.cs
- TypeDependencyAttribute.cs
- TextParaClient.cs
- DrawingBrush.cs
- RegexGroup.cs
- InstallerTypeAttribute.cs
- IgnoreSectionHandler.cs
- XPathSelectionIterator.cs
- ToolStripComboBox.cs
- Vector3DAnimation.cs
- BitmapEffectDrawing.cs
- PersonalizableTypeEntry.cs
- SimpleApplicationHost.cs
- Connector.xaml.cs
- StylusPlugin.cs
- TabControlCancelEvent.cs
- SortFieldComparer.cs
- WriteableBitmap.cs
- TextServicesCompartmentEventSink.cs
- Cursors.cs
- Pair.cs
- WmlListAdapter.cs
- Stroke.cs
- ConnectionStringEditor.cs
- peersecuritysettings.cs
- WsiProfilesElementCollection.cs
- SelectionRange.cs
- MemberInfoSerializationHolder.cs
- ZoneIdentityPermission.cs
- ModelPerspective.cs
- ValueType.cs
- OrthographicCamera.cs
- Soap11ServerProtocol.cs
- TableStyle.cs
- MSAAWinEventWrap.cs
- QueryResults.cs
- SerializationTrace.cs
- AssemblyResourceLoader.cs
- BinHexDecoder.cs
- LogConverter.cs
- MarkedHighlightComponent.cs
- WebServiceHandler.cs
- NeutralResourcesLanguageAttribute.cs
- SqlConnectionManager.cs
- AspCompat.cs
- MissingFieldException.cs
- XmlRawWriterWrapper.cs
- SubMenuStyleCollection.cs
- InvalidCommandTreeException.cs
- RequestCacheEntry.cs
- TypeDescriptionProviderAttribute.cs
- DataControlPagerLinkButton.cs
- JavaScriptSerializer.cs
- FixedDocumentSequencePaginator.cs
- FieldBuilder.cs
- LineSegment.cs
- MatrixAnimationBase.cs
- WMIGenerator.cs
- ADMembershipUser.cs
- DynamicResourceExtensionConverter.cs
- TextServicesHost.cs
- StrongNameUtility.cs
- WebPartsPersonalizationAuthorization.cs
- TextMetrics.cs
- TextWriterTraceListener.cs
- Geometry3D.cs
- AudienceUriMode.cs
- FixedFlowMap.cs
- Int16AnimationUsingKeyFrames.cs
- InsufficientMemoryException.cs
- Automation.cs
- XmlStreamedByteStreamReader.cs
- WrapPanel.cs
- EncryptedKey.cs
- ApplicationException.cs
- OleDbTransaction.cs
- StateFinalizationActivity.cs
- Soap.cs
- ParentControlDesigner.cs
- KeyPullup.cs
- AutomationFocusChangedEventArgs.cs