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

    /**
     * Deletes documents matching the specified search parameters.
     *

                docMap.put(fessConfig.getIndexFieldVersion(), hit.getVersion());
                docMap.put(fessConfig.getIndexFieldSeqNo(), hit.getSeqNo());
                docMap.put(fessConfig.getIndexFieldPrimaryTerm(), hit.getPrimaryTerm());
                return docMap;
            }
            final Map<String, DocumentField> fields = hit.getFields();
            if (fields != null) {

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

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