checks if there 's an output file with given file id . concode_field_sep Map<Long,Lineage> mIdIndex concode_elem_sep LineageIdGenerator mLineageIdGenerator concode_elem_sep DirectedAcyclicGraph<Lineage> mLineageDAG concode_elem_sep Map<Long,Lineage> mOutputFileIndex concode_field_sep List<Lineage> getParents concode_elem_sep void addLineageFromJournal concode_elem_sep List<Lineage> getChildren concode_elem_sep List<Lineage> sortLineageTopologically concode_elem_sep List<Lineage> getAllInTopologicalOrder concode_elem_sep void createLineageInternal concode_elem_sep void deleteLineage concode_elem_sep Lineage getLineageOfOutputFile concode_elem_sep void streamToJournalCheckpoint concode_elem_sep List<Lineage> getRootLineages concode_elem_sep Lineage getLineage concode_elem_sep long createLineage