通过

SystemFilter 类 (Microsoft.Office.Server.ApplicationRegistry.Runtime)

  • 项目

Provides a base class for all system filters in the Business Data Catalog.

命名空间: Microsoft.Office.Server.ApplicationRegistry.Runtime
程序集: Microsoft.SharePoint.Portal （在 microsoft.sharepoint.portal.dll 中）

语法

声明
<SerializableAttribute> _
<SharePointPermissionAttribute(SecurityAction.InheritanceDemand, ObjectModel:=True)> _
<SharePointPermissionAttribute(SecurityAction.LinkDemand, ObjectModel:=True)> _
Public MustInherit Class SystemFilter
    Inherits FilterBase
用法
Dim instance As SystemFilter

[SerializableAttribute] 
[SharePointPermissionAttribute(SecurityAction.InheritanceDemand, ObjectModel=true)] 
[SharePointPermissionAttribute(SecurityAction.LinkDemand, ObjectModel=true)] 
public abstract class SystemFilter : FilterBase

备注

The Business Data Catalog contains two types of filters:

  • User Input filters

  • System filters

User Input filters require users to provide filter values such as the Comparison, Limit and Wildcard filters.

  • System filters are system-provided. The Business Data Catalog populates their values as the very last thing it does before the actual execution. These values are securely set and it is not possible to override them.

  • Following are the system filters that are provided by the Business Data Catalog:

  • UserProfile filter   Specified in the FilterDescriptor definition. To use this simple filter, declare a filter of the type "UserProfile" and add a System.String property with the name "UserProfilePropertyName", whose value is the name of a user profile property. The Business Data Catalog looks up the current user's profile, reads the value of the property with this name, and plumbs that through to the back-end method that is invoked.

  • SSOTicket filter   Tells the Business Data Catalog to pass the single sign-on (SSO) ticket from SSO as part of a parameter to the method call.

  • Username filter   Limits the instances by an SSO username. This filter tells the Business Data Catalog to pass the username from SSO as part of a parameter to the method call.

  • Password filter   Tells the Business Data Catalog to pass the password from SSO as part of a parameter to the method call.

  • UserContext filter   Limits the instances by the current user's context. This filter tells Business Data Catalog to append the current Microsoft Windows user's domain\username to the method call.

  • LastIdSeen filter   Enables chunking for IDEnumerator objects. For Web services and other non-streaming back-end applications, use the LastIdSeen filter in your IDEnumerator object.

继承层次结构

System.Object
   Microsoft.Office.Server.ApplicationRegistry.Runtime.FilterBase
    Microsoft.Office.Server.ApplicationRegistry.Runtime.SystemFilter

线程安全性

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

另请参阅

参考

SystemFilter 成员
Microsoft.Office.Server.ApplicationRegistry.Runtime 命名空间