Code:
/ FXUpdate3074 / FXUpdate3074 / 1.1 / untmp / whidbey / QFE / ndp / fx / src / Xml / System / Xml / XPath / Internal / DescendantOverDescendantQuery.cs / 1 / DescendantOverDescendantQuery.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- namespace MS.Internal.Xml.XPath { using System; using System.Xml; using System.Xml.XPath; using System.Diagnostics; // DescendantOverDescendantQuery: for each input it looks for the topmost descendents that matches to ns:name // This is posible when query which has this query as its input (child query) is descendent as well. // Work of this query doesn't depend on DOD of its input. // It doesn't garate DOD of the output even when input is DOD. internal sealed class DescendantOverDescendantQuery : DescendantBaseQuery { private int level = 0; public DescendantOverDescendantQuery(Query qyParent, bool matchSelf, string name, string prefix, XPathNodeType typeTest, bool abbrAxis) : base(qyParent, name, prefix, typeTest, matchSelf, abbrAxis) {} private DescendantOverDescendantQuery(DescendantOverDescendantQuery other) : base(other) { this.level = other.level; } public override void Reset() { level = 0; base.Reset(); } public override XPathNavigator Advance() { while (true) { if (level == 0) { currentNode = qyInput.Advance(); position = 0; if (currentNode == null) { return null; } if (matchSelf && matches(currentNode)) { position = 1; return currentNode; } currentNode = currentNode.Clone(); if (! MoveToFirstChild()) { continue; } } else { if (!MoveUpUntillNext()) { continue; } } do { if (matches(currentNode)) { position++; return currentNode; } } while (MoveToFirstChild()); } } private bool MoveToFirstChild() { if (currentNode.MoveToFirstChild()) { level++; return true; } return false; } private bool MoveUpUntillNext() { // move up untill we can move next while (! currentNode.MoveToNext()) { -- level; if (level == 0) { return false; } bool result = currentNode.MoveToParent(); Debug.Assert(result, "Algorithm error, We always should be able to move up if level > 0"); } return true; } public override XPathNodeIterator Clone() { return new DescendantOverDescendantQuery(this); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- GenericEnumConverter.cs
- DeflateEmulationStream.cs
- GroupStyle.cs
- TcpHostedTransportConfiguration.cs
- BaseCodeDomTreeGenerator.cs
- ReferenceConverter.cs
- counter.cs
- TransactionManager.cs
- CacheMemory.cs
- CodeAttributeDeclarationCollection.cs
- NeutralResourcesLanguageAttribute.cs
- PageBuildProvider.cs
- EntityContainer.cs
- PowerStatus.cs
- AtomicFile.cs
- SafeEventHandle.cs
- ContentElement.cs
- XmlNodeList.cs
- XslAst.cs
- Ray3DHitTestResult.cs
- NotifyParentPropertyAttribute.cs
- NonParentingControl.cs
- PolyQuadraticBezierSegment.cs
- SqlMultiplexer.cs
- WebSysDefaultValueAttribute.cs
- Timeline.cs
- PtsPage.cs
- QueryContext.cs
- LineServicesRun.cs
- CardSpaceException.cs
- AsyncStreamReader.cs
- SqlCacheDependencySection.cs
- CodeFieldReferenceExpression.cs
- Stream.cs
- unsafenativemethodstextservices.cs
- SafeNativeMethods.cs
- HwndHostAutomationPeer.cs
- DrawTreeNodeEventArgs.cs
- WaitHandleCannotBeOpenedException.cs
- VerticalAlignConverter.cs
- EntityDataSourceWrapperPropertyDescriptor.cs
- Memoizer.cs
- ConnectionPoint.cs
- SqlServices.cs
- TextElement.cs
- ArraySubsetEnumerator.cs
- ContextMenu.cs
- Attributes.cs
- DrawingCollection.cs
- BaseParaClient.cs
- StatusBarDesigner.cs
- RequestFactory.cs
- CompilerTypeWithParams.cs
- EventsTab.cs
- UnauthorizedAccessException.cs
- AnchorEditor.cs
- TrackingMemoryStream.cs
- ListBindableAttribute.cs
- XmlUtil.cs
- KeyToListMap.cs
- ProjectionAnalyzer.cs
- DocumentSequenceHighlightLayer.cs
- X509IssuerSerialKeyIdentifierClause.cs
- ClonableStack.cs
- SqlCaseSimplifier.cs
- InvalidPrinterException.cs
- Geometry3D.cs
- SlipBehavior.cs
- LoadGrammarCompletedEventArgs.cs
- WebBrowserProgressChangedEventHandler.cs
- InfoCardTraceRecord.cs
- UserInitiatedRoutedEventPermissionAttribute.cs
- ClientScriptManager.cs
- PropertyHelper.cs
- SizeLimitedCache.cs
- LineUtil.cs
- JsonObjectDataContract.cs
- ParagraphVisual.cs
- RegexParser.cs
- securitycriticaldataformultiplegetandset.cs
- ScrollChrome.cs
- ResourceReferenceKeyNotFoundException.cs
- Model3D.cs
- ImplicitInputBrush.cs
- OdbcErrorCollection.cs
- SqlUtil.cs
- SQLResource.cs
- MD5.cs
- odbcmetadatafactory.cs
- ConcatQueryOperator.cs
- TaskResultSetter.cs
- ControlUtil.cs
- ArithmeticLiteral.cs
- DefaultPrintController.cs
- FontStyleConverter.cs
- XPathPatternBuilder.cs
- FixUpCollection.cs
- BaseResourcesBuildProvider.cs
- SqlFacetAttribute.cs
- xdrvalidator.cs