io.gearpump.streaming.transaction.api
close connection to data source.
close connection to data source. invoked in onStop() method of io.gearpump.streaming.source.DataSourceTask
open connection to data source invoked in onStart() method of io.gearpump.streaming.source.DataSourceTask
open connection to data source invoked in onStart() method of io.gearpump.streaming.source.DataSourceTask
is the task context at runtime
is the start time of system
read a number of messages from data source.
read a number of messages from data source. invoked in each onNext() method of io.gearpump.streaming.source.DataSourceTask
max number of messages to read
a list of messages wrapped in io.gearpump.Message
AT-LEAST-ONCE API
subclass should be able to replay messages on recovery from the time when an application crashed