items.add(new SuggestItem(words, readings, new String[] { field }, 0, 1, -1, tags, roles, null, SuggestItem.Kind.QUERY));
            }
        } catch (final IOException e) {
            throw new SuggesterException("Failed to create SuggestItem from query log.", e);
        }

        return items;
    }

    @Override

        List<SuggestItem> items =
                parser.parseQueryLog(queryLog, supportedFields, tagFieldNames, roleFieldName, defaultReadingConverter, defaultNormalizer);

        assertTrue(items.size() > 0);
        SuggestItem item = items.get(0);
        assertTrue("Should have multiple tags", item.getTags().length >= 2);
    }

        SuggestItem item3 = new SuggestItem(new String[] { "テスト" }, readings, new String[] { "content" }, 3, 0, -1, new String[] { "tag1" },
                new String[] { SuggestConstants.DEFAULT_ROLE }, null, SuggestItem.Kind.DOCUMENT);
        SuggestItem item4 = new SuggestItem(new String[] { "テスト" }, readings, new String[] { "content" }, 4, 0, -1, new String[] { "tag1" },

        readings3[0] = new String[] { "both" };
        items[2] = new SuggestItem(new String[] { "両方" }, readings3, new String[] { "content" }, 1L, 1L, -1.0f, new String[] { "tag1" },
                new String[] { SuggestConstants.DEFAULT_ROLE }, null, SuggestItem.Kind.DOCUMENT);
        items[2].setKinds(new SuggestItem.Kind[] { SuggestItem.Kind.DOCUMENT, SuggestItem.Kind.QUERY });

        suggester.indexer().index(items);

        final List<String> firstWords = new ArrayList<>();
        final List<String> secondWords = new ArrayList<>();
        final List<SuggestItem> firstItems = new ArrayList<>();
        final List<SuggestItem> secondItems = new ArrayList<>();

        final String index;
        if (hits.length > 0) {
            index = hits[0].getIndex();
        } else {

        String[][] readings = new String[1][];
        readings[0] = new String[] { "test" };
        SuggestItem item = new SuggestItem(new String[] { "テスト" }, readings, new String[] { "content" }, 1, 0, -1, new String[] { "tag1" },
                new String[] { SuggestConstants.DEFAULT_ROLE }, null, SuggestItem.Kind.DOCUMENT);
        suggester.indexer().index(item);
        suggester.refresh();

        String[][] readings = new String[1][];
        readings[0] = new String[] { "filtered" };
        SuggestItem item = new SuggestItem(new String[] { "filtered" }, readings, new String[] { "content" }, 1, 0, -1,
                new String[] { "tag1" }, new String[] { SuggestConstants.DEFAULT_ROLE }, null, SuggestItem.Kind.DOCUMENT);

        SuggestIndexResponse response = suggester.indexer().index(item);

            }
            final SuggestItem[] array =
                    stream.flatMap(queryLog -> contentsParser
                            .parseQueryLog(queryLog, ctx.getSupportedFields(), ctx.getTagFieldNames(), ctx.getRoleFieldName(),
                                    readingConverter, normalizer)
                            .stream()).toArray(SuggestItem[]::new);

Location: `src/main/java/org/codelibs/fess/suggest/settings/SuggestSettings.java`

Manages configuration stored in OpenSearch: analyzers, bad words, elevate words, timeouts.

### SuggestItem (Domain Entity)
Location: `src/main/java/org/codelibs/fess/suggest/entity/SuggestItem.java`

Core attributes: `text`, `timestamp`, `queryFreq`, `docFreq`, `userBoost`, `readings`, `tags`, `roles`, `languages`, `kinds`

Kind types: `DOCUMENT`, `QUERY`, `USER`

 * </ul>
 *
 * <p>Methods:
 * <ul>
 * <li>{@link #index(SuggestItem)} - Index a single suggest item.</li>
 * <li>{@link #index(SuggestItem[])} - Index multiple suggest items.</li>
 * <li>{@link #delete(String)} - Delete a suggest item by ID.</li>
 * <li>{@link #deleteByQuery(String)} - Delete suggest items by query string.</li>