On 02/26/2014 08:47 PM, Chris Ellis wrote:
> Hi all
>
> I'm new to this list, I've been making use of the Libvirt Java bindings
> recently. I wanted to make use of domain events yesterday
> so my application can be alerted when the state of a domain changes etc.
Sideline observations (I'm not a user of the Java bindings):
> Events can be listened to by, registering via the Connect object, as
> follows:
>
> con.domainEventRegisterAny(DomainEventID.VIR_DOMAIN_EVENT_ID_LIFECYCLE,
> new DomainLifecycleEventHandler() {
That's a bit verbose. For example, the C code had to use 'RegisterAny'
because it already had an older 'Register', and C doesn't allow
overloads. But in Java, there is no loss of information if you just do:
con.domainEventRegister(DomainEventID.LIFECYCLE,
new DomainLifecycleEventHandler() {...})
Or even be more object oriented, and have 15 overloads, one for each
type of handler class, so that the caller can merely do:
con.domainEventRegister(new DomainLifecycleEventHandler() {...})
and it becomes obvious based on the type of handler that I passed in
which C event id must be used.
> I've put my clone of the libvirt-java git repository on Github, my
> modifications to the Java binding are in a separate branch and
> should be simple to merge. The changes can be viewed at:
>
> https://github.com/intrbiz/libvirt-java/compare/master...ce-domain-events
On this list, it's easier to review patches if you use 'git send-email'
to post your series on the list, than it it to make us chase down a
random git repository.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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