public JobQueue(IFirebase jobs, Func <T, bool> callback)
{
// create our own copy and ignore filters
_jobs = jobs.Child("/");
_query = _jobs
.On("child_changed", (snap, child, context) =>
{
if (snap.Exists)
{
if (snap["Timestamp"][".sv"].Exists)
{
// local version
return;
}
T data = snap["Data"].Value <T>();
try
{
if (callback(data))
{
// remove from the queue
snap.Ref().Remove();
}
}
catch (Exception ex)
{
Debug.WriteLine("ERROR: {0}", ex);
}
}
});
}