Code:
/ Dotnetfx_Vista_SP2 / Dotnetfx_Vista_SP2 / 8.0.50727.4016 / DEVDIV / depot / DevDiv / releases / whidbey / NetFxQFE / ndp / fx / src / Xml / System / Xml / XPath / Internal / ExtensionQuery.cs / 1 / ExtensionQuery.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- namespace MS.Internal.Xml.XPath { using System; using System.Xml; using System.Xml.Xsl; using System.Xml.XPath; using System.Diagnostics; using System.Globalization; using System.Collections; internal abstract class ExtensionQuery : Query { protected string prefix; protected string name; protected XsltContext xsltContext; private ResetableIterator queryIterator; public ExtensionQuery(string prefix, string name) : base() { this.prefix = prefix; this.name = name; } protected ExtensionQuery(ExtensionQuery other) : base(other) { this.prefix = other.prefix; this.name = other.name; this.xsltContext = other.xsltContext; this.queryIterator = (ResetableIterator)Clone(other.queryIterator); } public override void Reset() { if (queryIterator != null) { queryIterator.Reset(); } } public override XPathNavigator Current { get { if (queryIterator == null) { throw XPathException.Create(Res.Xp_NodeSetExpected); } if (queryIterator.CurrentPosition == 0) { Advance(); } return queryIterator.Current; } } public override XPathNavigator Advance() { if (queryIterator == null) { throw XPathException.Create(Res.Xp_NodeSetExpected); } if (queryIterator.MoveNext()) { return queryIterator.Current; } return null; } public override int CurrentPosition { get { if (queryIterator != null) { return queryIterator.CurrentPosition; } return 0; } } protected object ProcessResult(object value) { if (value is string ) return value; if (value is double ) return value; if (value is bool ) return value; if (value is XPathNavigator) return value; if (value is Int32 ) return (double)(Int32)value; if (value == null) { queryIterator = XPathEmptyIterator.Instance; return this; // We map null to NodeSet to let $null/foo work well. } ResetableIterator resetable = value as ResetableIterator; if (resetable != null) { // We need Clone() value because variable may be used several times // and they shouldn't queryIterator = (ResetableIterator)resetable.Clone(); return this; } XPathNodeIterator nodeIterator = value as XPathNodeIterator; if (nodeIterator != null) { queryIterator = new XPathArrayIterator(nodeIterator); return this; } IXPathNavigable navigable = value as IXPathNavigable; if(navigable != null) { return navigable.CreateNavigator(); } if (value is Int16 ) return (double)(Int16)value; if (value is Int64 ) return (double)(Int64)value; if (value is UInt32) return (double)(UInt32)value; if (value is UInt16) return (double)(UInt16)value; if (value is UInt64) return (double)(UInt64)value; if (value is Single) return (double)(Single)value; if (value is Decimal) return (double)(Decimal)value; return value.ToString(); } protected string QName { get { return prefix.Length != 0 ? prefix + ":" + name : name; } } public override int Count { get { return queryIterator == null ? 1 : queryIterator.Count; } } public override XPathResultType StaticType { get { return XPathResultType.Any; } } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //[....] //----------------------------------------------------------------------------- namespace MS.Internal.Xml.XPath { using System; using System.Xml; using System.Xml.Xsl; using System.Xml.XPath; using System.Diagnostics; using System.Globalization; using System.Collections; internal abstract class ExtensionQuery : Query { protected string prefix; protected string name; protected XsltContext xsltContext; private ResetableIterator queryIterator; public ExtensionQuery(string prefix, string name) : base() { this.prefix = prefix; this.name = name; } protected ExtensionQuery(ExtensionQuery other) : base(other) { this.prefix = other.prefix; this.name = other.name; this.xsltContext = other.xsltContext; this.queryIterator = (ResetableIterator)Clone(other.queryIterator); } public override void Reset() { if (queryIterator != null) { queryIterator.Reset(); } } public override XPathNavigator Current { get { if (queryIterator == null) { throw XPathException.Create(Res.Xp_NodeSetExpected); } if (queryIterator.CurrentPosition == 0) { Advance(); } return queryIterator.Current; } } public override XPathNavigator Advance() { if (queryIterator == null) { throw XPathException.Create(Res.Xp_NodeSetExpected); } if (queryIterator.MoveNext()) { return queryIterator.Current; } return null; } public override int CurrentPosition { get { if (queryIterator != null) { return queryIterator.CurrentPosition; } return 0; } } protected object ProcessResult(object value) { if (value is string ) return value; if (value is double ) return value; if (value is bool ) return value; if (value is XPathNavigator) return value; if (value is Int32 ) return (double)(Int32)value; if (value == null) { queryIterator = XPathEmptyIterator.Instance; return this; // We map null to NodeSet to let $null/foo work well. } ResetableIterator resetable = value as ResetableIterator; if (resetable != null) { // We need Clone() value because variable may be used several times // and they shouldn't queryIterator = (ResetableIterator)resetable.Clone(); return this; } XPathNodeIterator nodeIterator = value as XPathNodeIterator; if (nodeIterator != null) { queryIterator = new XPathArrayIterator(nodeIterator); return this; } IXPathNavigable navigable = value as IXPathNavigable; if(navigable != null) { return navigable.CreateNavigator(); } if (value is Int16 ) return (double)(Int16)value; if (value is Int64 ) return (double)(Int64)value; if (value is UInt32) return (double)(UInt32)value; if (value is UInt16) return (double)(UInt16)value; if (value is UInt64) return (double)(UInt64)value; if (value is Single) return (double)(Single)value; if (value is Decimal) return (double)(Decimal)value; return value.ToString(); } protected string QName { get { return prefix.Length != 0 ? prefix + ":" + name : name; } } public override int Count { get { return queryIterator == null ? 1 : queryIterator.Count; } } public override XPathResultType StaticType { get { return XPathResultType.Any; } } } } // 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
- BehaviorService.cs
- ReadOnlyTernaryTree.cs
- xmlglyphRunInfo.cs
- FamilyCollection.cs
- StrongNameIdentityPermission.cs
- SecurityMessageProperty.cs
- DbConnectionStringBuilder.cs
- ContainerAction.cs
- DesignTimeResourceProviderFactoryAttribute.cs
- ViewGenerator.cs
- SystemColors.cs
- SecurityTimestamp.cs
- EventSourceCreationData.cs
- _CacheStreams.cs
- StylusPoint.cs
- Cell.cs
- ErrorsHelper.cs
- DBBindings.cs
- ItemCheckedEvent.cs
- BindingMAnagerBase.cs
- AccessedThroughPropertyAttribute.cs
- ControlIdConverter.cs
- DrawingImage.cs
- DSACryptoServiceProvider.cs
- DSACryptoServiceProvider.cs
- OleDbConnectionPoolGroupProviderInfo.cs
- TextEditorLists.cs
- StackBuilderSink.cs
- XmlSerializerSection.cs
- CachedCompositeFamily.cs
- SessionStateContainer.cs
- DocumentAutomationPeer.cs
- ObjectDataSourceMethodEventArgs.cs
- ListViewSelectEventArgs.cs
- AddInAttribute.cs
- PowerEase.cs
- XmlTypeAttribute.cs
- x509utils.cs
- MD5.cs
- GreenMethods.cs
- EndpointNameMessageFilter.cs
- ResXResourceWriter.cs
- NameGenerator.cs
- WebContentFormatHelper.cs
- UserPersonalizationStateInfo.cs
- AllMembershipCondition.cs
- PhonemeEventArgs.cs
- XamlStream.cs
- NativeObjectSecurity.cs
- AesCryptoServiceProvider.cs
- ToolStripTextBox.cs
- AvtEvent.cs
- DesignerCalendarAdapter.cs
- SingleConverter.cs
- Matrix3DValueSerializer.cs
- MetadataUtilsSmi.cs
- GridEntry.cs
- ScalarConstant.cs
- HtmlTernaryTree.cs
- AutomationProperties.cs
- DbConvert.cs
- PackageDigitalSignatureManager.cs
- AnnotationService.cs
- InternalConfirm.cs
- ScriptControlDescriptor.cs
- AvTraceFormat.cs
- AppearanceEditorPart.cs
- SmtpDigestAuthenticationModule.cs
- PersonalizationProviderHelper.cs
- WizardStepBase.cs
- DragEventArgs.cs
- XsdCachingReader.cs
- ResourceDescriptionAttribute.cs
- XmlDocumentSchema.cs
- SRGSCompiler.cs
- AbstractExpressions.cs
- IISMapPath.cs
- ImageKeyConverter.cs
- Collection.cs
- EntityContainerAssociationSet.cs
- ExternalCalls.cs
- EvidenceTypeDescriptor.cs
- AspCompat.cs
- WorkflowMarkupSerializationException.cs
- FixedSOMImage.cs
- EdmItemError.cs
- ResourceReferenceExpression.cs
- StrokeDescriptor.cs
- DefaultMemberAttribute.cs
- _Connection.cs
- CustomPopupPlacement.cs
- UrlPath.cs
- NameValueFileSectionHandler.cs
- Evaluator.cs
- SchemaEntity.cs
- DynamicControl.cs
- WsiProfilesElement.cs
- BasicHttpMessageSecurity.cs
- Property.cs
- ImageFormatConverter.cs