SPSequence class
Provides an abstract superclass for all upgrade sequences in Microsoft SharePoint Foundation.
Inheritance hierarchy
System.Object
Microsoft.SharePoint.Upgrade.StopEventReceiver
Microsoft.SharePoint.Upgrade.SPDelegate
Microsoft.SharePoint.Upgrade.SPSequence
Microsoft.SharePoint.Upgrade.SPActionSequence
Namespace: Microsoft.SharePoint.Upgrade
Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)
Syntax
'Declaration
<SharePointPermissionAttribute(SecurityAction.LinkDemand, ObjectModel := True)> _
<SharePointPermissionAttribute(SecurityAction.InheritanceDemand, ObjectModel := True)> _
Public MustInherit Class SPSequence _
Inherits SPDelegate _
Implements IUpgrader, IHierarchyBuilder, IVersionCompatibleUpgrader
'Usage
Dim instance As SPSequence
[SharePointPermissionAttribute(SecurityAction.LinkDemand, ObjectModel = true)]
[SharePointPermissionAttribute(SecurityAction.InheritanceDemand, ObjectModel = true)]
public abstract class SPSequence : SPDelegate,
IUpgrader, IHierarchyBuilder, IVersionCompatibleUpgrader
Remarks
Each concrete sequence is designed to upgrade a specific object type in the server farm. Each object must be marked with the upgradable attribute.
Thread safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.