Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / DataWeb / Client / System / Data / Services / Client / AtomEntry.cs / 1407647 / AtomEntry.cs
//---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // //// Provides a class to represent an ATOM entry as parsed and as it // goes through the materialization pipeline. // //--------------------------------------------------------------------- namespace System.Data.Services.Client { #region Namespaces. using System; using System.Collections; using System.Collections.Generic; using System.Diagnostics; using System.Linq; using System.Reflection; using System.Xml; using System.Xml.Linq; using System.Text; #endregion Namespaces. ////// Use this class to represent an entry in an ATOM payload as it /// goes through the WCF Data Services materialization pipeline. /// ////// Different properties are set on instances of this type at different /// points during its lifetime. /// [DebuggerDisplay("AtomEntry {ResolvedObject} @ {Identity}")] internal class AtomEntry { #region Private fields. ///Entry flags. private EntryFlags flags; ////// Masks used get/set the status of the entry /// [Flags] private enum EntryFlags { ///Bitmask for ShouldUpdateFromPayload flag. ShouldUpdateFromPayload = 0x01, ///Bitmask for CreatedByMaterializer flag. CreatedByMaterializer = 0x02, ///Bitmask for EntityHasBeenResolved flag. EntityHasBeenResolved = 0x04, ///Bitmask for MediaLinkEntry flag (value). MediaLinkEntryValue = 0x08, ///Bitmask for MediaLinkEntry flag (assigned/non-null state). MediaLinkEntryAssigned = 0x10, ///Bitmask for EntityPropertyMappingsApplied flag. EntityPropertyMappingsApplied = 0x20, ///Bitmask for IsNull flag. IsNull = 0x40 } #endregion Private fields. #region Public properties. ///MediaLinkEntry. Valid after data values applies. public bool? MediaLinkEntry { get { return this.GetFlagValue(EntryFlags.MediaLinkEntryAssigned) ? (bool?)this.GetFlagValue(EntryFlags.MediaLinkEntryValue) : null; } set { Debug.Assert(value.HasValue, "value.HasValue -- callers shouldn't set the value to unknown"); this.SetFlagValue(EntryFlags.MediaLinkEntryAssigned, true); this.SetFlagValue(EntryFlags.MediaLinkEntryValue, value.Value); } } ///URI for media content. null if MediaLinkEntry is false. public Uri MediaContentUri { get; set; } ///URI for editing media. null if MediaLinkEntry is false. public Uri MediaEditUri { get; set; } ///Type name, as present in server payload. public string TypeName { get; set; } ///Actual type of the ResolvedObject. public ClientType ActualType { get; set; } ///Edit link for the ATOM entry - basically link used to update the entity. public Uri EditLink { get; set; } ///Self link for the ATOM entry - basically link used to query the entity. public Uri QueryLink { get; set; } ////// Identity link for the ATOM entry. /// This is set by the parser (guaranteed, fails to parser if not available on entry). /// public string Identity { get; set; } ////// Whether the entry is a null. /// This is set by the parser only on inlined entries, as it's invalid ATOM in /// top-level cases. /// public bool IsNull { get { return this.GetFlagValue(EntryFlags.IsNull); } set { this.SetFlagValue(EntryFlags.IsNull, value); } } ///Data names and values. public ListDataValues { get; set; } /// Resolved object. public object ResolvedObject { get; set; } ///Tag for the entry, set by the parser when an entry callback is invoked. public object Tag { get; set; } ///Text for Etag, possibly null. public string ETagText { get; set; } ///Text for ETag corresponding to media resource for this entry. public string StreamETagText { get; set; } ///Whether values should be updated from payload. public bool ShouldUpdateFromPayload { get { return this.GetFlagValue(EntryFlags.ShouldUpdateFromPayload); } set { this.SetFlagValue(EntryFlags.ShouldUpdateFromPayload, value); } } ///Whether the materializer has created the ResolvedObject instance. public bool CreatedByMaterializer { get { return this.GetFlagValue(EntryFlags.CreatedByMaterializer); } set { this.SetFlagValue(EntryFlags.CreatedByMaterializer, value); } } ///Whether the entity has been resolved / created. public bool EntityHasBeenResolved { get { return this.GetFlagValue(EntryFlags.EntityHasBeenResolved); } set { this.SetFlagValue(EntryFlags.EntityHasBeenResolved, value); } } ///Whether entity Property Mappings (a.k.a. friendly feeds) have been applied to this entry if applicable. public bool EntityPropertyMappingsApplied { get { return this.GetFlagValue(EntryFlags.EntityPropertyMappingsApplied); } set { this.SetFlagValue(EntryFlags.EntityPropertyMappingsApplied, value); } } #endregion Public properties. #region Private methods. ///Gets the value for a masked item. /// Mask value. ///true if the flag is set; false otherwise. private bool GetFlagValue(EntryFlags mask) { return (this.flags & mask) != 0; } ///Sets the value for a masked item. /// Mask value. /// Value to set private void SetFlagValue(EntryFlags mask, bool value) { if (value) { this.flags |= mask; } else { this.flags &= (~mask); } } #endregion Private methods. } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //---------------------------------------------------------------------- //// Copyright (c) Microsoft Corporation. All rights reserved. // //// Provides a class to represent an ATOM entry as parsed and as it // goes through the materialization pipeline. // //--------------------------------------------------------------------- namespace System.Data.Services.Client { #region Namespaces. using System; using System.Collections; using System.Collections.Generic; using System.Diagnostics; using System.Linq; using System.Reflection; using System.Xml; using System.Xml.Linq; using System.Text; #endregion Namespaces. ////// Use this class to represent an entry in an ATOM payload as it /// goes through the WCF Data Services materialization pipeline. /// ////// Different properties are set on instances of this type at different /// points during its lifetime. /// [DebuggerDisplay("AtomEntry {ResolvedObject} @ {Identity}")] internal class AtomEntry { #region Private fields. ///Entry flags. private EntryFlags flags; ////// Masks used get/set the status of the entry /// [Flags] private enum EntryFlags { ///Bitmask for ShouldUpdateFromPayload flag. ShouldUpdateFromPayload = 0x01, ///Bitmask for CreatedByMaterializer flag. CreatedByMaterializer = 0x02, ///Bitmask for EntityHasBeenResolved flag. EntityHasBeenResolved = 0x04, ///Bitmask for MediaLinkEntry flag (value). MediaLinkEntryValue = 0x08, ///Bitmask for MediaLinkEntry flag (assigned/non-null state). MediaLinkEntryAssigned = 0x10, ///Bitmask for EntityPropertyMappingsApplied flag. EntityPropertyMappingsApplied = 0x20, ///Bitmask for IsNull flag. IsNull = 0x40 } #endregion Private fields. #region Public properties. ///MediaLinkEntry. Valid after data values applies. public bool? MediaLinkEntry { get { return this.GetFlagValue(EntryFlags.MediaLinkEntryAssigned) ? (bool?)this.GetFlagValue(EntryFlags.MediaLinkEntryValue) : null; } set { Debug.Assert(value.HasValue, "value.HasValue -- callers shouldn't set the value to unknown"); this.SetFlagValue(EntryFlags.MediaLinkEntryAssigned, true); this.SetFlagValue(EntryFlags.MediaLinkEntryValue, value.Value); } } ///URI for media content. null if MediaLinkEntry is false. public Uri MediaContentUri { get; set; } ///URI for editing media. null if MediaLinkEntry is false. public Uri MediaEditUri { get; set; } ///Type name, as present in server payload. public string TypeName { get; set; } ///Actual type of the ResolvedObject. public ClientType ActualType { get; set; } ///Edit link for the ATOM entry - basically link used to update the entity. public Uri EditLink { get; set; } ///Self link for the ATOM entry - basically link used to query the entity. public Uri QueryLink { get; set; } ////// Identity link for the ATOM entry. /// This is set by the parser (guaranteed, fails to parser if not available on entry). /// public string Identity { get; set; } ////// Whether the entry is a null. /// This is set by the parser only on inlined entries, as it's invalid ATOM in /// top-level cases. /// public bool IsNull { get { return this.GetFlagValue(EntryFlags.IsNull); } set { this.SetFlagValue(EntryFlags.IsNull, value); } } ///Data names and values. public ListDataValues { get; set; } /// Resolved object. public object ResolvedObject { get; set; } ///Tag for the entry, set by the parser when an entry callback is invoked. public object Tag { get; set; } ///Text for Etag, possibly null. public string ETagText { get; set; } ///Text for ETag corresponding to media resource for this entry. public string StreamETagText { get; set; } ///Whether values should be updated from payload. public bool ShouldUpdateFromPayload { get { return this.GetFlagValue(EntryFlags.ShouldUpdateFromPayload); } set { this.SetFlagValue(EntryFlags.ShouldUpdateFromPayload, value); } } ///Whether the materializer has created the ResolvedObject instance. public bool CreatedByMaterializer { get { return this.GetFlagValue(EntryFlags.CreatedByMaterializer); } set { this.SetFlagValue(EntryFlags.CreatedByMaterializer, value); } } ///Whether the entity has been resolved / created. public bool EntityHasBeenResolved { get { return this.GetFlagValue(EntryFlags.EntityHasBeenResolved); } set { this.SetFlagValue(EntryFlags.EntityHasBeenResolved, value); } } ///Whether entity Property Mappings (a.k.a. friendly feeds) have been applied to this entry if applicable. public bool EntityPropertyMappingsApplied { get { return this.GetFlagValue(EntryFlags.EntityPropertyMappingsApplied); } set { this.SetFlagValue(EntryFlags.EntityPropertyMappingsApplied, value); } } #endregion Public properties. #region Private methods. ///Gets the value for a masked item. /// Mask value. ///true if the flag is set; false otherwise. private bool GetFlagValue(EntryFlags mask) { return (this.flags & mask) != 0; } ///Sets the value for a masked item. /// Mask value. /// Value to set private void SetFlagValue(EntryFlags mask, bool value) { if (value) { this.flags |= mask; } else { this.flags &= (~mask); } } #endregion Private methods. } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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