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WmiEventWatcherTask 类

Contains the members used to configure and run a WMI Event Watcher task, which runs Windows Management Instrumentation (WMI) queries and returns WMI data about a computer system. This class cannot be inherited.

继承层次结构

System. . :: . .Object
  Microsoft.SqlServer.Dts.Runtime. . :: . .DtsObject
    Microsoft.SqlServer.Dts.Runtime. . :: . .Task
      Microsoft.SqlServer.Dts.Tasks.WmiEventWatcherTask..::..WmiEventWatcherTask

命名空间：  Microsoft.SqlServer.Dts.Tasks.WmiEventWatcherTask
程序集：  Microsoft.SqlServer.WMIEWTask（在 Microsoft.SqlServer.WMIEWTask.dll 中）

语法

声明
<GuidAttribute("36CA769C-EDAA-41d7-9FCA-E0789DC8E858")> _
Public NotInheritable Class WmiEventWatcherTask _
    Inherits Task _
    Implements IWmiEventWatcherTask, IDTSBreakpointSite, IDTSSuspend, IDTSComponentPersist
用法
Dim instance As WmiEventWatcherTask

[GuidAttribute("36CA769C-EDAA-41d7-9FCA-E0789DC8E858")]
public sealed class WmiEventWatcherTask : Task, 
    IWmiEventWatcherTask, IDTSBreakpointSite, IDTSSuspend, IDTSComponentPersist

[GuidAttribute(L"36CA769C-EDAA-41d7-9FCA-E0789DC8E858")]
public ref class WmiEventWatcherTask sealed : public Task, 
    IWmiEventWatcherTask, IDTSBreakpointSite, IDTSSuspend, IDTSComponentPersist

[<SealedAttribute>]
[<GuidAttribute("36CA769C-EDAA-41d7-9FCA-E0789DC8E858")>]
type WmiEventWatcherTask =  
    class
        inherit Task
        interface IWmiEventWatcherTask
        interface IDTSBreakpointSite
        interface IDTSSuspend
        interface IDTSComponentPersist
    end

public final class WmiEventWatcherTask extends Task implements IWmiEventWatcherTask, IDTSBreakpointSite, IDTSSuspend, IDTSComponentPersist

WmiEventWatcherTask 类型公开以下成员。

构造函数

  名称 说明
公共方法 WmiEventWatcherTask Initializes a new instance of the WmiEventWatcherTask class.

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属性

  名称 说明
公共属性 ActionAtEvent Determines how the WmiEventWatcherTask responds when the task receives a Windows Management Instrumentation (WMI) event.
公共属性 ActionAtTimeout Determines how the WmiEventWatcherTask responds when the task times out without receiving the specified Windows Management Instrumentation (WMI) event.
公共属性 AfterEvent Determines how the WmiEventWatcherTask responds when the task receives the specified Windows Management Instrumentation (WMI) event.
公共属性 AfterTimeout Determines how the WmiEventWatcherTask responds when the task times out without receiving the specified Windows Management Instrumentation (WMI) event.
公共属性 DebugMode A Boolean indicating whether WmiEventWatcherTask should check if breakpoints are enabled.
公共属性 ExecutionValue Gets an Object that contains the results of the WmiEventWatcherTask task. （覆盖 Task. . :: . .ExecutionValue。）
公共属性 NumberOfEvents Gets or sets the number of Windows Management Instrumentation (WMI) events for which the WmiEventWatcherTask should watch.
公共属性 SuspendRequired Gets or sets a Boolean that indicates if tasks should suspend when they encounter a breakpoint. This value is set by the runtime engine for tasks and containers when a breakpoint is encountered.
公共属性 Timeout Gets or sets the number of seconds the task should wait to receive a Windows Management Instrumentation (WMI) event before timing out.
公共属性 Version *** Member deprecated; see Remarks. ***    Returns the version of the task. This property is read-only. （从 Task 继承。）
公共属性 WmiConnection Gets or sets the name of the WMIConn class used by the WmiEventWatcherTask task.
公共属性 WqlQuerySource Gets or sets the source of the Windows Management Instrumentation Query Language (WQL) query to be executed by the WmiEventWatcherTask.
公共属性 WqlQuerySourceType Gets or sets a QuerySourceType value that indicates the source type, such as file connection or a variable, of the Windows Management Instrumentation Query Language (WQL) query to be executed by the WmiEventWatcherTask.

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方法

  名称 说明
公共方法 AcceptBreakpointManager Passes a BreakpointManager reference to the WmiEventWatcherTask task. This method is called by the runtime and is not used in code.
公共方法 CanUpdate *** Member deprecated; see Remarks. ***    A Boolean that indicates whether the new package XML can update the old package XML. （从 Task 继承。）
公共方法 Equals Determines whether two object instances are equal. （从 DtsObject 继承。）
公共方法 Execute Runs the task. （覆盖 Task. . :: . .Execute(Connections, VariableDispenser, IDTSComponentEvents, IDTSLogging, Object)。）
受保护方法 Finalize （从 Object 继承。）
公共方法 GetConnectionID Gets a String containing the ID of the connection. （从 Task 继承。）
公共方法 GetConnectionName Gets a String containing the name of the connection. （从 Task 继承。）
公共方法 GetHashCode Returns the hash code for this instance. （从 DtsObject 继承。）
公共方法 GetType （从 Object 继承。）
公共方法 InitializeTask Initializes the properties associated with the WmiEventWatcherTask task. This method is called by the runtime and is not used in code. （覆盖 Task. . :: . .InitializeTask(Connections, VariableDispenser, IDTSInfoEvents, IDTSLogging, EventInfos, LogEntryInfos, ObjectReferenceTracker)。）
公共方法 LoadFromXML This method is not callable by your application code. To load a package saved as .xml, use the Application..::..LoadPackage method.
受保护方法 MemberwiseClone （从 Object 继承。）
公共方法 ResumeExecution Resumes execution of the task after pausing. The task or container is resumed by the runtime engine.
公共方法 SaveToXML This method is not callable by your application code. To save a package as .xml, use the Application..::..SaveToXml method.
公共方法 SuspendExecution Indicates that the executable needs to suspend. This method is called by the runtime engine.
公共方法 ToString （从 Object 继承。）
公共方法 Update *** Member deprecated; see Remarks. ***    This method updates the old package XML with the new package XML if CanUpdate is set to true. （从 Task 继承。）
公共方法 Validate Verifies that the task is properly configured. （覆盖 Task. . :: . .Validate(Connections, VariableDispenser, IDTSComponentEvents, IDTSLogging)。）

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注释

The class uses a WMIConn connection to connect to a server, execute a Windows Management Instrumentation Query Language (WQL) query against it, and wait for events associated with the query to occur. The task then provides notification as to whether a WMI event occurred. The WQL query can be provided directly, or a variable or file connection can be used to dynamically provide WQL queries at execution time.

Similarly, this class can use either a file connection or variable to receive the results of the WQL query. The output type of the WQL query results can also be specified.

For more information about the features of this task, see WMI 事件观察器任务.

线程安全

此类型的任何公共 static（在 Visual Basic 中为 Shared） 成员都是线程安全的。不保证所有实例成员都是线程安全的。