Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / ndp / fx / src / DataEntity / System / Data / Metadata / Edm / MetadataItem.cs / 1 / MetadataItem.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....], [....] //--------------------------------------------------------------------- using System; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Diagnostics; using System.Text; using System.Xml.Serialization; using System.Xml.Schema; using System.Xml; using System.Globalization; namespace System.Data.Metadata.Edm { ////// Represents the base item class for all the metadata /// public abstract partial class MetadataItem { #region Constructors ////// Implementing this internal constructor so that this class can't be derived /// outside this assembly /// internal MetadataItem() { } internal MetadataItem(MetadataFlags flags) { _flags = flags; } #endregion #region Fields [Flags] internal enum MetadataFlags { // GlobalItem None = 0, // DataSpace flags are off by one so that zero can be the uninitialized state CSpace = 1, // (1 << 0) OSpace = 2, // (1 << 1) OCSpace = 3, // CSpace | OSpace SSpace = 4, // (1 << 2) CSSpace = 5, // CSpace | SSpace DataSpace = OSpace | CSpace | SSpace | OCSpace | CSSpace, // MetadataItem Readonly = (1 << 3), // EdmType IsAbstract = (1 << 4), // FunctionParameter In = (1 << 9), Out = (1 << 10), InOut = In | Out, ReturnValue = (1 << 11), ParameterMode = (In | Out | InOut | ReturnValue), } private MetadataFlags _flags; private object _flagsLock = new object(); private MetadataCollection_itemAttributes; private Documentation _documentation; #endregion #region Properties /// /// Returns the kind of the type /// public abstract BuiltInTypeKind BuiltInTypeKind { get; } ////// List of item attributes on this type /// [MetadataProperty(BuiltInTypeKind.MetadataProperty, true)] public ReadOnlyMetadataCollectionMetadataProperties { get { if (null == _itemAttributes) { MetadataPropertyCollection itemAttributes = new MetadataPropertyCollection(this); if (IsReadOnly) { itemAttributes.SetReadOnly(); } System.Threading.Interlocked.CompareExchange >( ref _itemAttributes, itemAttributes, null); } return _itemAttributes.AsReadOnlyMetadataCollection(); } } /// /// List of item attributes on this type /// internal MetadataCollectionRawMetadataProperties { get { return _itemAttributes; } } /// /// List of item attributes on this type /// public Documentation Documentation { get { return _documentation; } set { _documentation = value; } } ////// Identity of the item /// internal abstract String Identity { get; } ////// Just checks for identities to be equal /// /// ///internal virtual bool EdmEquals(MetadataItem item) { return ((null != item) && ((this == item) || // same reference (this.BuiltInTypeKind == item.BuiltInTypeKind && this.Identity == item.Identity))); } /// /// Returns true if this item is not-changeable. Otherwise returns false. /// internal bool IsReadOnly { get { return GetFlag(MetadataFlags.Readonly); } } #endregion #region Methods ////// Validates the types and sets the readOnly property to true. Once the type is set to readOnly, /// it can never be changed. /// internal virtual void SetReadOnly() { if (!IsReadOnly) { if (null != _itemAttributes) { _itemAttributes.SetReadOnly(); } SetFlag(MetadataFlags.Readonly, true); } } ////// Builds identity string for this item. By default, the method calls the identity property. /// /// internal virtual void BuildIdentity(StringBuilder builder) { builder.Append(this.Identity); } ////// Adds the given metadata property to the metadata property collection /// /// internal void AddMetadataProperties(ListmetadataProperties) { this.MetadataProperties.Source.AtomicAddRange(metadataProperties); } #endregion #region MetadataFlags internal DataSpace GetDataSpace() { switch (_flags & MetadataFlags.DataSpace) { default: return (DataSpace)(-1); case MetadataFlags.CSpace: return DataSpace.CSpace; case MetadataFlags.OSpace: return DataSpace.OSpace; case MetadataFlags.SSpace: return DataSpace.SSpace; case MetadataFlags.OCSpace: return DataSpace.OCSpace; case MetadataFlags.CSSpace: return DataSpace.CSSpace; } } internal void SetDataSpace(DataSpace space) { _flags = (_flags & ~MetadataFlags.DataSpace) | (MetadataFlags.DataSpace & Convert(space)); } private static MetadataFlags Convert(DataSpace space) { switch (space) { default: return MetadataFlags.None; // invalid case DataSpace.CSpace: return MetadataFlags.CSpace; case DataSpace.OSpace: return MetadataFlags.OSpace; case DataSpace.SSpace: return MetadataFlags.SSpace; case DataSpace.OCSpace: return MetadataFlags.OCSpace; case DataSpace.CSSpace: return MetadataFlags.CSSpace; } } internal ParameterMode GetParameterMode() { switch (_flags & MetadataFlags.ParameterMode) { default: return (ParameterMode)(-1); // invalid case MetadataFlags.In: return ParameterMode.In; case MetadataFlags.Out: return ParameterMode.Out; case MetadataFlags.InOut: return ParameterMode.InOut; case MetadataFlags.ReturnValue: return ParameterMode.ReturnValue; } } internal void SetParameterMode(ParameterMode mode) { _flags = (_flags & ~MetadataFlags.ParameterMode) | (MetadataFlags.ParameterMode & Convert(mode)); } private static MetadataFlags Convert(ParameterMode mode) { switch (mode) { default: return MetadataFlags.ParameterMode; // invalid case ParameterMode.In: return MetadataFlags.In; case ParameterMode.Out: return MetadataFlags.Out; case ParameterMode.InOut: return MetadataFlags.InOut; case ParameterMode.ReturnValue: return MetadataFlags.ReturnValue; } } internal bool GetFlag(MetadataFlags flag) { return (flag == (_flags & flag)); } internal void SetFlag(MetadataFlags flag, bool value) { if ((flag & MetadataFlags.Readonly) == MetadataFlags.Readonly) { Debug.Assert(System.Convert.ToInt32(flag & ~MetadataFlags.Readonly,CultureInfo.InvariantCulture) == 0, "SetFlag() invoked with Readonly and additional flags."); } lock (_flagsLock) { // an attempt to set the ReadOnly flag on a MetadataItem that is already read-only // is a no-op // if (IsReadOnly && ((flag & MetadataFlags.Readonly) == MetadataFlags.Readonly)) { return; } Util.ThrowIfReadOnly(this); if (value) { _flags |= flag; } else { _flags &= ~flag; } } } #endregion } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- // // Copyright (c) Microsoft Corporation. All rights reserved. // // // @owner [....], [....] //--------------------------------------------------------------------- using System; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Diagnostics; using System.Text; using System.Xml.Serialization; using System.Xml.Schema; using System.Xml; using System.Globalization; namespace System.Data.Metadata.Edm { ////// Represents the base item class for all the metadata /// public abstract partial class MetadataItem { #region Constructors ////// Implementing this internal constructor so that this class can't be derived /// outside this assembly /// internal MetadataItem() { } internal MetadataItem(MetadataFlags flags) { _flags = flags; } #endregion #region Fields [Flags] internal enum MetadataFlags { // GlobalItem None = 0, // DataSpace flags are off by one so that zero can be the uninitialized state CSpace = 1, // (1 << 0) OSpace = 2, // (1 << 1) OCSpace = 3, // CSpace | OSpace SSpace = 4, // (1 << 2) CSSpace = 5, // CSpace | SSpace DataSpace = OSpace | CSpace | SSpace | OCSpace | CSSpace, // MetadataItem Readonly = (1 << 3), // EdmType IsAbstract = (1 << 4), // FunctionParameter In = (1 << 9), Out = (1 << 10), InOut = In | Out, ReturnValue = (1 << 11), ParameterMode = (In | Out | InOut | ReturnValue), } private MetadataFlags _flags; private object _flagsLock = new object(); private MetadataCollection_itemAttributes; private Documentation _documentation; #endregion #region Properties /// /// Returns the kind of the type /// public abstract BuiltInTypeKind BuiltInTypeKind { get; } ////// List of item attributes on this type /// [MetadataProperty(BuiltInTypeKind.MetadataProperty, true)] public ReadOnlyMetadataCollectionMetadataProperties { get { if (null == _itemAttributes) { MetadataPropertyCollection itemAttributes = new MetadataPropertyCollection(this); if (IsReadOnly) { itemAttributes.SetReadOnly(); } System.Threading.Interlocked.CompareExchange >( ref _itemAttributes, itemAttributes, null); } return _itemAttributes.AsReadOnlyMetadataCollection(); } } /// /// List of item attributes on this type /// internal MetadataCollectionRawMetadataProperties { get { return _itemAttributes; } } /// /// List of item attributes on this type /// public Documentation Documentation { get { return _documentation; } set { _documentation = value; } } ////// Identity of the item /// internal abstract String Identity { get; } ////// Just checks for identities to be equal /// /// ///internal virtual bool EdmEquals(MetadataItem item) { return ((null != item) && ((this == item) || // same reference (this.BuiltInTypeKind == item.BuiltInTypeKind && this.Identity == item.Identity))); } /// /// Returns true if this item is not-changeable. Otherwise returns false. /// internal bool IsReadOnly { get { return GetFlag(MetadataFlags.Readonly); } } #endregion #region Methods ////// Validates the types and sets the readOnly property to true. Once the type is set to readOnly, /// it can never be changed. /// internal virtual void SetReadOnly() { if (!IsReadOnly) { if (null != _itemAttributes) { _itemAttributes.SetReadOnly(); } SetFlag(MetadataFlags.Readonly, true); } } ////// Builds identity string for this item. By default, the method calls the identity property. /// /// internal virtual void BuildIdentity(StringBuilder builder) { builder.Append(this.Identity); } ////// Adds the given metadata property to the metadata property collection /// /// internal void AddMetadataProperties(ListmetadataProperties) { this.MetadataProperties.Source.AtomicAddRange(metadataProperties); } #endregion #region MetadataFlags internal DataSpace GetDataSpace() { switch (_flags & MetadataFlags.DataSpace) { default: return (DataSpace)(-1); case MetadataFlags.CSpace: return DataSpace.CSpace; case MetadataFlags.OSpace: return DataSpace.OSpace; case MetadataFlags.SSpace: return DataSpace.SSpace; case MetadataFlags.OCSpace: return DataSpace.OCSpace; case MetadataFlags.CSSpace: return DataSpace.CSSpace; } } internal void SetDataSpace(DataSpace space) { _flags = (_flags & ~MetadataFlags.DataSpace) | (MetadataFlags.DataSpace & Convert(space)); } private static MetadataFlags Convert(DataSpace space) { switch (space) { default: return MetadataFlags.None; // invalid case DataSpace.CSpace: return MetadataFlags.CSpace; case DataSpace.OSpace: return MetadataFlags.OSpace; case DataSpace.SSpace: return MetadataFlags.SSpace; case DataSpace.OCSpace: return MetadataFlags.OCSpace; case DataSpace.CSSpace: return MetadataFlags.CSSpace; } } internal ParameterMode GetParameterMode() { switch (_flags & MetadataFlags.ParameterMode) { default: return (ParameterMode)(-1); // invalid case MetadataFlags.In: return ParameterMode.In; case MetadataFlags.Out: return ParameterMode.Out; case MetadataFlags.InOut: return ParameterMode.InOut; case MetadataFlags.ReturnValue: return ParameterMode.ReturnValue; } } internal void SetParameterMode(ParameterMode mode) { _flags = (_flags & ~MetadataFlags.ParameterMode) | (MetadataFlags.ParameterMode & Convert(mode)); } private static MetadataFlags Convert(ParameterMode mode) { switch (mode) { default: return MetadataFlags.ParameterMode; // invalid case ParameterMode.In: return MetadataFlags.In; case ParameterMode.Out: return MetadataFlags.Out; case ParameterMode.InOut: return MetadataFlags.InOut; case ParameterMode.ReturnValue: return MetadataFlags.ReturnValue; } } internal bool GetFlag(MetadataFlags flag) { return (flag == (_flags & flag)); } internal void SetFlag(MetadataFlags flag, bool value) { if ((flag & MetadataFlags.Readonly) == MetadataFlags.Readonly) { Debug.Assert(System.Convert.ToInt32(flag & ~MetadataFlags.Readonly,CultureInfo.InvariantCulture) == 0, "SetFlag() invoked with Readonly and additional flags."); } lock (_flagsLock) { // an attempt to set the ReadOnly flag on a MetadataItem that is already read-only // is a no-op // if (IsReadOnly && ((flag & MetadataFlags.Readonly) == MetadataFlags.Readonly)) { return; } Util.ThrowIfReadOnly(this); if (value) { _flags |= flag; } else { _flags &= ~flag; } } } #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
- Solver.cs
- XPathNodeHelper.cs
- MarkupObject.cs
- DocumentPageHost.cs
- DomNameTable.cs
- XmlResolver.cs
- EventLogEntryCollection.cs
- EUCJPEncoding.cs
- HttpConfigurationContext.cs
- OciEnlistContext.cs
- PasswordRecoveryDesigner.cs
- WithParamAction.cs
- Label.cs
- MultipartIdentifier.cs
- TextFormatterContext.cs
- XamlVector3DCollectionSerializer.cs
- WorkflowRequestContext.cs
- TypeConverterValueSerializer.cs
- Socket.cs
- LinkDesigner.cs
- columnmapkeybuilder.cs
- QuaternionIndependentAnimationStorage.cs
- RuntimeResourceSet.cs
- SelectingProviderEventArgs.cs
- XmlBinaryReader.cs
- SelectionWordBreaker.cs
- Internal.cs
- JapaneseCalendar.cs
- ManagedIStream.cs
- HTTP_SERVICE_CONFIG_URLACL_PARAM.cs
- QilFactory.cs
- parserscommon.cs
- MessageBox.cs
- CngKeyBlobFormat.cs
- MailWriter.cs
- FactoryGenerator.cs
- TypeExtension.cs
- ExpressionContext.cs
- DrawingGroupDrawingContext.cs
- StreamAsIStream.cs
- StreamUpgradeAcceptor.cs
- DataGridViewRowPostPaintEventArgs.cs
- PageAsyncTask.cs
- DefaultCommandExtensionCallback.cs
- TextBoxLine.cs
- StatusBarPanelClickEvent.cs
- EventTrigger.cs
- ListViewItemSelectionChangedEvent.cs
- RegistryPermission.cs
- KeysConverter.cs
- figurelengthconverter.cs
- ListViewItem.cs
- RequestCachePolicyConverter.cs
- RowToFieldTransformer.cs
- HyperLink.cs
- RangeBaseAutomationPeer.cs
- AsyncCompletedEventArgs.cs
- MetadataArtifactLoaderComposite.cs
- AnimationStorage.cs
- NetCodeGroup.cs
- SafePointer.cs
- SubtreeProcessor.cs
- RewritingProcessor.cs
- EventBindingService.cs
- ServiceObjectContainer.cs
- AddInActivator.cs
- Root.cs
- FileSystemEventArgs.cs
- WebResponse.cs
- XamlParser.cs
- XmlJsonReader.cs
- SystemTcpStatistics.cs
- FlowLayoutPanelDesigner.cs
- TriggerActionCollection.cs
- ViewLoader.cs
- CheckBoxAutomationPeer.cs
- OdbcConnectionOpen.cs
- OutputChannelBinder.cs
- RectAnimationClockResource.cs
- SqlConnectionPoolProviderInfo.cs
- SqlExpressionNullability.cs
- RIPEMD160Managed.cs
- BooleanAnimationBase.cs
- CodeIterationStatement.cs
- PlaceHolder.cs
- CodeCompileUnit.cs
- ReadWriteObjectLock.cs
- securitycriticaldataClass.cs
- ButtonFieldBase.cs
- ExitEventArgs.cs
- Brush.cs
- SimpleHandlerBuildProvider.cs
- XslException.cs
- RuleSetReference.cs
- Rule.cs
- UIElementAutomationPeer.cs
- ControlBuilder.cs
- DiagnosticTraceSource.cs
- DockPattern.cs
- SafePEFileHandle.cs