Code:
/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataEntity / System / Data / Map / ViewGeneration / CqlGeneration / SlotInfo.cs / 1305376 / SlotInfo.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....] // @backupOwner [....] //--------------------------------------------------------------------- using System.Data.Common.Utils; using System.Data.Mapping.ViewGeneration.Structures; using System.Text; using System.Diagnostics; namespace System.Data.Mapping.ViewGeneration.CqlGeneration { // A class that keeps track of slot information in a CqlBlock internal class SlotInfo : InternalBase { #region Constructor // effects: Creates a SlotInfo for a CqlBlock X with information // about whether this slot is needed by X's parent // (isRequiredByParent), whether X projects it (isProjected) along with // the slot value (slot) and the output member path (for // regular/non-boolean slots) for the slot internal SlotInfo(bool isRequiredByParent, bool isProjected, ProjectedSlot slot, MemberPath memberPath) : this(isRequiredByParent, isProjected, slot, memberPath, false /* enforceNotNull */) { } // We need to ensure that _from variables are never null since // view generation uses 2-valued boolean logic. // If enforceNotNull=true, the generated CQL adds a condition (AND slot NOT NULL) // This flag is used only for boolean slots. internal SlotInfo(bool isRequiredByParent, bool isProjected, ProjectedSlot slot, MemberPath memberPath, bool enforceNotNull) { m_isRequiredByParent = isRequiredByParent; m_isProjected = isProjected; m_slot = slot; m_memberPath = memberPath; m_enforceNotNull = enforceNotNull; Debug.Assert(false == m_isRequiredByParent || m_slot != null, "Required slots cannot be null"); Debug.Assert(m_slot is AliasedSlot || (m_slot == null && m_memberPath == null) || // unused boolean slot (m_slot is BooleanProjectedSlot) == (m_memberPath == null), "If slot is boolean slot, there is no member path for it and vice-versa"); } #endregion #region Fields private bool m_isRequiredByParent; // If slot is required by the parent private bool m_isProjected; // If the node is capable of projecting this slot private ProjectedSlot m_slot; // The slot represented by this SlotInfo private MemberPath m_memberPath; // The output member path of this slot private bool m_enforceNotNull; // Whether to add AND NOT NULL to CQL #endregion #region Properties // effects: Returns true iff this slot is required by the CqlBlock's parent internal bool IsRequiredByParent { get { return m_isRequiredByParent; } } // effects: Returns true iff this slot is projected by this CqlBlock internal bool IsProjected { get { return m_isProjected; } } // effects: Returns the output memberpath of this slot internal MemberPath MemberPath { get { return m_memberPath; } } // effects: Returns the slot corresponfing to this object internal ProjectedSlot SlotValue { get { return m_slot; } } // effects: Returns the Cql Alias for this slot, e.g., CPerson1_Pid, _from0 internal string CqlFieldAlias { get { return m_slot.CqlFieldAlias(m_memberPath); } } // effects: Returns true if CQL generated for slot needs to have an extra AND IS NOT NULL condition internal bool IsEnforcedNotNull { get { return m_enforceNotNull; } } #endregion #region Methods // effects: Sets the isrequiredbyparent to false. Note we don't have // a setter because we don't want people to set this field to true // after the object has been created internal void ResetIsRequiredByParent() { m_isRequiredByParent = false; } // effects: Modifies builder to contain a Cql representation of this // and returns the modified builder. For different slots, the result // is different, e.g., _from0, CPerson1.pid, TREAT(....) internal StringBuilder AsCql(StringBuilder builder, string blockAlias, int indentLevel) { if (m_enforceNotNull) { builder.Append('('); m_slot.AsCql(builder, m_memberPath, blockAlias, indentLevel); builder.Append(" AND "); m_slot.AsCql(builder, m_memberPath, blockAlias, indentLevel); builder.Append(" IS NOT NULL)"); } else { m_slot.AsCql(builder, m_memberPath, blockAlias, indentLevel); } return builder; } internal override void ToCompactString(StringBuilder builder) { if (m_slot != null) { builder.Append(CqlFieldAlias); } } #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
- ExplicitDiscriminatorMap.cs
- TypeUsage.cs
- DependencyPropertyValueSerializer.cs
- ModuleConfigurationInfo.cs
- XmlUtf8RawTextWriter.cs
- ValidatingPropertiesEventArgs.cs
- PeerNeighborManager.cs
- SystemColorTracker.cs
- GetWinFXPath.cs
- SingleKeyFrameCollection.cs
- XsdDuration.cs
- SiteMapNodeItem.cs
- ResizingMessageFilter.cs
- CapabilitiesRule.cs
- RuntimeResourceSet.cs
- Polygon.cs
- CompletedAsyncResult.cs
- MsmqInputSessionChannelListener.cs
- InvalidOperationException.cs
- COSERVERINFO.cs
- AsymmetricAlgorithm.cs
- FillErrorEventArgs.cs
- WCFBuildProvider.cs
- SmtpReplyReaderFactory.cs
- Invariant.cs
- Imaging.cs
- AspNetPartialTrustHelpers.cs
- DesignerDataColumn.cs
- ResolveNameEventArgs.cs
- TextTreeUndo.cs
- XmlToDatasetMap.cs
- MailMessage.cs
- AffineTransform3D.cs
- RouteTable.cs
- PropertyMetadata.cs
- EdmPropertyAttribute.cs
- ValidationRuleCollection.cs
- BoundColumn.cs
- Int16Animation.cs
- RuntimeConfigurationRecord.cs
- FocusWithinProperty.cs
- AutomationPropertyInfo.cs
- UrlMapping.cs
- DataGrid.cs
- ChangeTracker.cs
- HtmlTableCell.cs
- ClientSettingsProvider.cs
- PropertyDescriptor.cs
- ContextQuery.cs
- DataGridViewCellStyleBuilderDialog.cs
- PaperSource.cs
- AnimationStorage.cs
- basevalidator.cs
- SqlUdtInfo.cs
- DecoderBestFitFallback.cs
- DelegatingChannelListener.cs
- Int64Storage.cs
- CaseExpr.cs
- CodeSnippetCompileUnit.cs
- BuildManagerHost.cs
- SingleKeyFrameCollection.cs
- Ref.cs
- RecognizeCompletedEventArgs.cs
- DataGridViewLinkColumn.cs
- ViewStateModeByIdAttribute.cs
- oledbconnectionstring.cs
- GeneralTransform.cs
- TakeOrSkipQueryOperator.cs
- ReadOnlyDictionary.cs
- TextDecoration.cs
- XmlNodeReader.cs
- SafeUserTokenHandle.cs
- FixedDocumentSequencePaginator.cs
- QilList.cs
- ISO2022Encoding.cs
- MultiViewDesigner.cs
- AncillaryOps.cs
- CertificateReferenceElement.cs
- MultipleViewPattern.cs
- DictionaryContent.cs
- ScriptReferenceEventArgs.cs
- StorageConditionPropertyMapping.cs
- UnsafeNativeMethods.cs
- HwndTarget.cs
- FlowLayoutSettings.cs
- ActiveXContainer.cs
- PermissionRequestEvidence.cs
- KeyedHashAlgorithm.cs
- HttpCachePolicyWrapper.cs
- SymbolTable.cs
- ResourceReferenceExpression.cs
- XamlTreeBuilder.cs
- PerfService.cs
- TraceUtils.cs
- LocatorManager.cs
- Cursor.cs
- HttpCacheVaryByContentEncodings.cs
- ComMethodElementCollection.cs
- COM2IVsPerPropertyBrowsingHandler.cs
- Bits.cs