SPPersistedObject 类

提供了用于自动序列化其状态、 保持永久存储区中的状态,以后,检索和反序列化的对象的方法回内存中对象。

继承层次结构

System.Object
  Microsoft.SharePoint.Administration.SPAutoSerializingObject
    Microsoft.SharePoint.Administration.SPPersistedObject
      

命名空间:  Microsoft.SharePoint.Administration
程序集:  Microsoft.SharePoint(位于 Microsoft.SharePoint.dll 中)

语法

声明
<GuidAttribute("3B60B328-F4D6-4902-BEC6-E904179FA246")> _
<SharePointPermissionAttribute(SecurityAction.LinkDemand, ObjectModel := True)> _
<SharePointPermissionAttribute(SecurityAction.InheritanceDemand, ObjectModel := True)> _
Public Class SPPersistedObject _
    Inherits SPAutoSerializingObject _
    Implements ICloneable
用法
Dim instance As SPPersistedObject
[GuidAttribute("3B60B328-F4D6-4902-BEC6-E904179FA246")]
[SharePointPermissionAttribute(SecurityAction.LinkDemand, ObjectModel = true)]
[SharePointPermissionAttribute(SecurityAction.InheritanceDemand, ObjectModel = true)]
public class SPPersistedObject : SPAutoSerializingObject, 
    ICloneable

备注

SPPersistedObject类的所有管理对象提供基类。它序列化使用Persisted属性设置为 XML 标记的所有字段,并将该 XML blob 写入到配置数据库。SPPersistedObject类包含代码序列化其基类型、 其他持久的对象,和持久化对象的集合的所有成员。每个进程可用的服务器场中每台服务器自动进行配置数据存储在持久对象。

当您创建一个自定义的持久性的对象时必须指定默认的构造函数进行序列化。

若要返回现有的持久化的对象,使用GetObject方法的SPFarm类或SPPersistedObject类的GetChild方法。

示例

下面的示例阐释了其中的Peristed属性用于指定用于序列化的字段的SPPersistedObject类从继承的自定义类。

<GuidAttribute("3B60B328-F4D6-4902-BEC6-E904179FA246")>
Public Class MyObject
   Inherits SPPersistedObject
   <Persisted()>  _
   Private location As String

   <Persisted()>  _
   Private url As String

   'The default constructor must be specified for serialization.
   Public Sub New()
   End Sub 'New
   
   Public Sub New(name As String, parent As SPPersistedObject)
      MyBase.New(name, parent)
   End Sub 'New

   Public Overrides ReadOnly Property DisplayName() As String
      Get
         Return Me.url
      End Get
   End Property
   
   Public Property Url() As String
      Get
         Return Me.url
      End Get
      Set
         If Me.url = value Then
            Return
         End If

         Me.url = value
      End Set
   End Property

   Public Property Location() As String
      Get
         Return Me.location
      End Get
      Set
         Me.location = value
      End Set
   End Property
End Class 'MyObject
[GuidAttribute("3B60B328-F4D6-4902-BEC6-E904179FA246")]
public class MyObject : SPPersistedObject
{
   [Persisted]
   private string location;

   [Persisted]
   private string url;

   /*The default constructor must be specified for serialization.*/
   public MyObject()
   {
   }
   public MyObject(string name, SPPersistedObject parent)
      : base(name, parent)
   {
      ;
   }

   public override string DisplayName
   {
      get
      {
         return this.url;
      }
   }

   public string Url
   {
      get { return this.url; }
      set 
      {
         if (this.url == value)
         {
            return;
          }

          this.url = value;
      }
   }

   public string Location
   {
      get { return this.location; }
      set { this.location = value; }
   }
}

创建与示例 MyObject 持久的对象后,可以通过使用SPFarm.Local.GetObject(GUID)返回它。

线程安全性

该类型的任何公共 静态 (已共享 在 Visual Basic 中) 成员都是线程安全的。不保证任何实例成员都是线程安全的。

另请参阅

引用

SPPersistedObject 成员

Microsoft.SharePoint.Administration 命名空间

继承层次结构

System.Object
  Microsoft.SharePoint.Administration.SPAutoSerializingObject
    Microsoft.SharePoint.Administration.SPPersistedObject
      Microsoft.SharePoint.Administration.AppDeployment.DatabaseProviderTypePersistedObject
      Microsoft.SharePoint.Administration.AppDeployment.WorkflowAppPartTypePersistedObject
      Microsoft.SharePoint.Administration.AppDeployment.WorkflowDeploymentGroupTypePersistedObject
      Microsoft.SharePoint.Administration.Backup.SPBackupRestoreConfigurationSettings
      Microsoft.SharePoint.Administration.Backup.SPVssDiscoveryHelper
      Microsoft.SharePoint.Administration.Claims.SPClaimProviderManager
      Microsoft.SharePoint.Administration.Claims.SPIdentityClaimMapperManager
      Microsoft.SharePoint.Administration.Claims.SPSecurityTokenServiceManager
      Microsoft.SharePoint.Administration.Claims.SPTrustedProviderBase
      Microsoft.SharePoint.Administration.SPAlternateUrlCollection
      Microsoft.SharePoint.Administration.SPDeveloperDashboardSettings
      Microsoft.SharePoint.Administration.SPDocumentConverter
      Microsoft.SharePoint.Administration.SPEncryptedString
      Microsoft.SharePoint.Administration.SPFarmConfigurationWizardSettings
      Microsoft.SharePoint.Administration.SPFeatureDefinition
      Microsoft.SharePoint.Administration.SPHealthReportStore
      Microsoft.SharePoint.Administration.SPIisWebServiceApplicationPool
      Microsoft.SharePoint.Administration.SPIisWebServiceEndpoint
      Microsoft.SharePoint.Administration.SPJobDefinition
      Microsoft.SharePoint.Administration.SPManagedAccount
      Microsoft.SharePoint.Administration.SPMigratableSiteCollection
      Microsoft.SharePoint.Administration.SPPersistedCustomWebTemplate
      Microsoft.SharePoint.Administration.SPPersistedFile
      Microsoft.SharePoint.Administration.SPPersistedUpgradableObject
      Microsoft.SharePoint.Administration.SPProcessIdentity
      Microsoft.SharePoint.Administration.SPRequestManagementRuleCollection<T>
      Microsoft.SharePoint.Administration.SPRequestManagementSettings
      Microsoft.SharePoint.Administration.SPResourceMeasure
      Microsoft.SharePoint.Administration.SPRoutingMachineInfo
      Microsoft.SharePoint.Administration.SPRoutingMachinePool
      Microsoft.SharePoint.Administration.SPSiteUpgradeThrottleSettings
      Microsoft.SharePoint.Administration.SPSolution
      Microsoft.SharePoint.Administration.SPSolutionLanguagePack
      Microsoft.SharePoint.Administration.SPUsageDefinition
      Microsoft.SharePoint.Administration.SPUsageIdentityTable
      Microsoft.SharePoint.Administration.SPUsageManager
      Microsoft.SharePoint.Administration.SPUsageReceiverDefinition
      Microsoft.SharePoint.Administration.SPUsageSettings
      Microsoft.SharePoint.Administration.SPUserCodeProvider
      Microsoft.SharePoint.Administration.SPUserSettingsProviderManager
      Microsoft.SharePoint.ApplicationServices.SPAuthenticationPipelineClaimMapping
      Microsoft.SharePoint.DistributedCaching.Utilities.SPDistributedCacheClusterInfo
      Microsoft.SharePoint.DistributedCaching.Utilities.SPDistributedCacheClusterInfoManager
      Microsoft.SharePoint.DistributedCaching.Utilities.SPDistributedCacheHostInfo
      Microsoft.SharePoint.Upgrade.SPUpgradeSession