}

            @Override
            public String getIndexFieldRole() {
                return "role";
            }

            @Override
            public String getIndexFieldSeqNo() {
                return "seq_no";
            }

            @Override
            public String getIndexFieldVersion() {
                return "version";
            }

            }

            @Override
            public String getIndexFieldVersion() {
                return "_version";
            }

            @Override
            public String getIndexFieldSeqNo() {
                return "_seq_no";
            }

            @Override
            public String getIndexFieldPrimaryTerm() {
                return "_primary_term";
            }
        });
    }

            public String getIndexFieldRole() {
                return baseConfig.getIndexFieldRole();
            }

            @Override
            public String getIndexFieldSeqNo() {
                return baseConfig.getIndexFieldSeqNo();
            }

            @Override
            public String getIndexFieldVersion() {
                return baseConfig.getIndexFieldVersion();
            }

            }

            @Override
            public String getIndexFieldRole() {
                return "role";
            }

            @Override
            public String getIndexFieldSeqNo() {
                return "seq_no";
            }

            @Override
            public String getIndexFieldVersion() {
                return "version";
            }
        };
    }

            return "_id";
        }

        @Override
        public String getIndexFieldVersion() {
            return "_version";
        }

        @Override
        public String getIndexFieldSeqNo() {
            return "_seq_no";
        }

        @Override
        public String getIndexFieldPrimaryTerm() {
            return "_primary_term";
        }

        @Override

            }

            @Override
            public String getIndexFieldRole() {
                return "role";
            }

            @Override
            public String getIndexFieldSeqNo() {
                return "seq_no";
            }

            @Override
            public String getIndexFieldVersion() {
                return "version";
            }
        };

                    fessConfig.getIndexFieldPrimaryTerm(), //
                    fessConfig.getIndexFieldRole(), //
                    fessConfig.getIndexFieldSegment(), //
                    fessConfig.getIndexFieldSeqNo(), //
                    fessConfig.getIndexFieldSite(), //
                    fessConfig.getIndexFieldTimestamp(), //
                    fessConfig.getIndexFieldUrl(), //

                    docMap.put(fessConfig.getIndexFieldId(), hit.getId());
                    docMap.put(fessConfig.getIndexFieldVersion(), hit.getVersion());
                    docMap.put(fessConfig.getIndexFieldSeqNo(), hit.getSeqNo());
                    docMap.put(fessConfig.getIndexFieldPrimaryTerm(), hit.getPrimaryTerm());
                    return docMap;
                }, cursor);
    }

    /**

                docMap.put(fessConfig.getIndexFieldId(), hit.getId());
                docMap.put(fessConfig.getIndexFieldVersion(), hit.getVersion());
                docMap.put(fessConfig.getIndexFieldSeqNo(), hit.getSeqNo());
                docMap.put(fessConfig.getIndexFieldPrimaryTerm(), hit.getPrimaryTerm());
                return docMap;
            }

     * comment: Field name for sequence number in the index.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getIndexFieldSeqNo();

    /**
     * Get the value for the key 'index.field.primary_term'. <br>
     * The value is, e.g. _primary_term <br>
     * comment: Field name for primary term in the index.