gets the number of ids in the checkpoint . concode_field_sep byte[] serializedData concode_elem_sep long serialVersionUID concode_elem_sep long checkpointId concode_elem_sep int numIds concode_field_sep byte[] getSerializedData concode_elem_sep long getCheckpointId concode_elem_sep SerializedCheckpointData[] fromDeque concode_elem_sep SerializedCheckpointData[] fromDeque concode_elem_sep ArrayDeque<Tuple2<Long,List<T>>> toDeque
int function ( ) { return numIds ; }