question: gets the checkpointing mode exactly-once vs. at-least-once . concode_field_sep long DEFAULT_TIMEOUT concode_elem_sep long checkpointTimeout concode_elem_sep int DEFAULT_MAX_CONCURRENT_CHECKPOINTS concode_elem_sep boolean deleteOnCancellation concode_elem_sep CheckpointingMode DEFAULT_MODE concode_elem_sep CheckpointingMode checkpointingMode concode_elem_sep long minPauseBetweenCheckpoints concode_elem_sep long serialVersionUID concode_elem_sep long DEFAULT_MIN_PAUSE_BETWEEN_CHECKPOINTS concode_elem_sep ExternalizedCheckpointCleanup externalizedCheckpointCleanup concode_elem_sep long checkpointInterval concode_elem_sep int maxConcurrentCheckpoints concode_elem_sep boolean forceCheckpointing concode_field_sep void setCheckpointingMode concode_elem_sep long getMinPauseBetweenCheckpoints concode_elem_sep void setMaxConcurrentCheckpoints concode_elem_sep boolean isForceCheckpointing concode_elem_sep void setCheckpointTimeout concode_elem_sep void setForceCheckpointing concode_elem_sep int getMaxConcurrentCheckpoints concode_elem_sep boolean deleteOnCancellation concode_elem_sep boolean isCheckpointingEnabled concode_elem_sep void setCheckpointInterval concode_elem_sep void enableExternalizedCheckpoints concode_elem_sep void setMinPauseBetweenCheckpoints concode_elem_sep boolean isExternalizedCheckpointsEnabled concode_elem_sep ExternalizedCheckpointCleanup getExternalizedCheckpointCleanup concode_elem_sep long getCheckpointInterval concode_elem_sep long getCheckpointTimeout
target: CheckpointingMode function ( ) { return checkpointingMode ; }