- open
This method is called immediately before any elements are processed, it should
contain the operator'
- close
This method is called after all records have been added to the operators via the
methods OneInputStr
- dispose
This method is called at the very end of the operator's life, both in the case
of a successful compl
- initializeState
- setup
- snapshotState
Stream operators with state, which want to participate in a snapshot need to
override this hook meth
- getExecutionConfig
Gets the execution config defined on the execution environment of the job to
which this operator bel
- processWatermark
- getContainingTask
- getKeyedStateBackend
- getKeyedStateStore
- setCurrentKey