returns the id of the checkpoint . concode_field_sep long duration concode_elem_sep long stateSize concode_elem_sep long checkpointId concode_elem_sep long triggerTimestamp concode_field_sep long getDuration concode_elem_sep long getStateSize concode_elem_sep int hashCode concode_elem_sep boolean equals concode_elem_sep String toString concode_elem_sep long getTriggerTimestamp
long function ( ) { return checkpointId ; }