geopackage-sdk/src/main/java/mil/nga/geopackage/extension/style/FeatureStyleExtension.java
public List<Long> getAllStyleIds(String featureTable) {
        List<Long> styleIds = null;
        StyleMappingDao mappingDao = getStyleMappingDao(featureTable);
        if (mappingDao != null) {
            styleIds = mappingDao.uniqueRelatedIds();
        }
        return styleIds;
    }
public List<Long> getAllStyleIds(String featureTable) {
        List<Long> styleIds = null;
        StyleMappingDao mappingDao = getStyleMappingDao(featureTable);
        if (mappingDao != null) {
            styleIds = mappingDao.uniqueRelatedIds();
        }
        return styleIds;
    }
Get all the unique style row ids the features map to

@param featureTable feature table
@return style row ids