[SNMP4J] Re: subclassing Variable

[Frank Fock]

Hi Jeff,

You can use http://www.snmp4j.org/doc/org/snmp4j/smi/VariantVariable.html
However, depending on your requirements other instrumentation
approaches may fit better. See the AgenPro
SNMP4J-Instrumentation-HowTo for more details. The PDF is part
of the AgenPro distribution ZIP (http://www.agentpp.com).

Best regards,
Frank


Jeff Ramin wrote:
> 
> I've been looking at the javadoc some more, looking for a Variable class
> that I could extend...
> 
> I was hoping to see an abstract method for all Variables that could be used
> for retrieving a value, but one doesn't seem to exist.
> 
> Is my only option here to create my own direct descendant of Variable, 
> which
> would implement all abstract methods?
> 
> 
>  > Hi folks.
>  >
>  > I want to be able to monitor an application, so I'm using SNMP4J-agent
>  > to provide that functionality (from within the application).
>  >
>  > My question is - how would I subclass Variable (or maybe ManagedObject?)
>  > do provide data that changes over time? My plan is to create a 
> ManagedObject
>  > using MOFactory.createScalar() and handing it a Variable.
>  >
>  > Let's say I want to provide an OID that returns the number of rows in
>  > a DB table. I'd like to have a Variable that grabs that number when a
>  > request for it is made; in other words, it would support polling. As
>  > opposed to having a Variable that is updated every X seconds.
>  >
>  > Is there a clean way to do this? Thanks!
> 

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