/** The page number. */
    @ValidateTypeFailure
    public Integer pn;

    /** The number of results to display. */
    @ValidateTypeFailure
    public Integer num;

    /** The languages. */
    public String[] lang;

    /** The fields. */
    public Map<String, String[]> fields = new HashMap<>();

    /** The conditions. */
    public Map<String, String[]> as = new HashMap<>();

        }
        return converter.convert(text, field);
    }

    /**
     * Language-specific analyzer converter.
     */
    protected class LangAnalyzerConverter implements ReadingConverter {
        /** Language. */
        protected final String lang;

        /**
         * Constructor.
         * @param lang Language
         */
        protected LangAnalyzerConverter(final String lang) {

        }

        public void columnHitCountRelation() {
            doColumn("hitCountRelation");
        }

        public void columnLanguages() {
            doColumn("languages");
        }

        public void columnQueryId() {
            doColumn("queryId");
        }

        public void columnQueryOffset() {
            doColumn("queryOffset");
        }

	}

	langs, err := gorm.G[Language](DB).Where("code = ?", lang.Code).Find(ctx)
	if err != nil {
		t.Errorf("no error should happen when find languages with code, but got %v", err)
	} else if len(langs) != 1 {
		t.Errorf("should only find only 1 languages, but got %+v", langs)
	}

	lang3 := Language{Code: "upsert", Name: "Upsert"}
	if err := gorm.G[Language](DB, clause.OnConflict{

/**
 * Helper class for language detection.
 */
public class LanguageHelper {
    private static final Logger logger = LogManager.getLogger(LanguageHelper.class);

    /** An array of language fields. */
    protected String[] langFields;

    /** An array of supported languages. */
    protected String[] supportedLanguages;

    /** The language detector. */
    protected LanguageDetector detector;

### 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`

---

## Development Workflow

### Build Commands

```bash
mvn compile                              # Compile

      --disable-lto \
      --disable-multilib \
      --enable-__cxa_atexit \
      --enable-gnu-indirect-function \
      --enable-gnu-unique-object \
      --enable-initfini-array \
      --enable-languages="c,c++" \
      --enable-linker-build-id \
      --enable-plugin \
      --enable-shared \
      --enable-threads=posix \
      --with-default-libstdcxx-abi=${LIBSTDCXX_ABI} \
      --with-gcc-major-version-only \

	user := User{Name: "jinzhu", Account: Account{Number: "1"}}

	if err := DB.Create(&user).Error; err != nil {
		t.Fatalf("errors happened when create: %v", err)
	}

	if err := DB.Model(&user).Association("Languages").Replace(Account{Number: "2"}); err == nil {
		t.Error("expected association error to be not nil")
	}

        String query = "";
        Map<String, String[]> fields = new HashMap<>();
        Map<String, String[]> conditions = new HashMap<>();
        String[] languages = new String[0];
        GeoInfo geoInfo = null;
        FacetInfo facetInfo = null;
        HighlightInfo highlightInfo = null;
        String sort = "";
        int startPosition = 0;
        int pageSize = 10;

            result.setHitCount(DfTypeUtil.toLong(source.get("hitCount")));
            result.setHitCountRelation(DfTypeUtil.toString(source.get("hitCountRelation")));
            result.setLanguages(DfTypeUtil.toString(source.get("languages")));
            result.setQueryId(DfTypeUtil.toString(source.get("queryId")));
            result.setQueryOffset(DfTypeUtil.toInteger(source.get("queryOffset")));