AsStarted Method (IEasySparkplugEdgeNodeExtension)

Starts the Sparkplug edge node if it is not started, and returns the same Sparkplug edge node.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<ExtensionAttribute()>
<JetBrains.Annotations.NotNullAttribute()>
Public Shared Function AsStarted( _
   ByVal edgeNode As IEasySparkplugEdgeNode _
) As IEasySparkplugEdgeNode

'Usage
 
Dim edgeNode As IEasySparkplugEdgeNode
Dim value As IEasySparkplugEdgeNode
 
value = IEasySparkplugEdgeNodeExtension.AsStarted(edgeNode)

[Extension()]
[JetBrains.Annotations.NotNull()]
public static IEasySparkplugEdgeNode AsStarted( 
   IEasySparkplugEdgeNode edgeNode
)

[Extension()]
[JetBrains.Annotations.NotNull()]
public:
static IEasySparkplugEdgeNode^ AsStarted( 
   IEasySparkplugEdgeNode^ edgeNode
)

Parameters

edgeNode: The Sparkplug edge node that will perform the operation.
The value of this parameter cannot be null (Nothing in Visual Basic).

Return Value

Returns the , internally modified as defined by the method.

This method never returns null (Nothing in Visual Basic).

Exceptions

Exception Description

Exception	Description
System.ArgumentNullException	A `null` reference (`Nothing` in Visual Basic) is passed to a method that does not accept it as a valid argument. This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

System.ArgumentNullException

A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.

This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception.

Remarks

If the edge node is already started, this method does nothing and simply returns the edge node instance. This is a convenience method to ensure that the edge node is running without having to check its state explicitly.

This is an extension method (info: C#, VB.NET). In languages that have support for extensions methods (such as C# and VB.NET), you can use the extension method as if it were a regular method on the object that is its first parameter. In other languages (such as with Python.NET), you will call the extension as a static method, and pass it the object on which it acts as its first parameter.

Sparkplug is a trademark of Eclipse Foundation, Inc. "MQTT" is a trademark of the OASIS Open standards consortium. Other related terms are trademarks of their respective owners. Any use of these terms on this site is for descriptive purposes only and does not imply any sponsorship, endorsement or affiliation.

Requirements

Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows

Reference

IEasySparkplugEdgeNodeExtension Class
IEasySparkplugEdgeNodeExtension Members

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