org.slf4j.Logger DOFN_LOG
CloudBigtableConfiguration config
Connection connection
long estimatedSize
NOTE: This value is a guesstimate. It could be significantly off, especially if there is a
Scan selected in the configuration. It will also be off if the start and stop keys
are calculated via CloudBigtableIO.Source.split(long, PipelineOptions).
ValueProvider<T> request
ValueProvider<T> tableId