* <li>{@link #setSupportedFields(String[])} - Set the supported fields.
 * <li>{@link #setTagFieldNames(String[])} - Set the tag field names.
 * <li>{@link #setRoleFieldName(String)} - Set the role field name.
 * <li>{@link #setReadingConverter(ReadingConverter)} - Set the reading converter.
 * <li>{@link #setNormalizer(Normalizer)} - Set the normalizer.
 * <li>{@link #setAnalyzer(SuggestAnalyzer)} - Set the analyzer.

        assertNotNull(indexer.setTagFieldNames(new String[] { "tag1", "tag2" }));
        assertNotNull(indexer.setRoleFieldName("role"));
        assertNotNull(indexer.setReadingConverter(null));
        assertNotNull(indexer.setNormalizer(null));
        assertNotNull(indexer.setAnalyzer(null));
        assertNotNull(indexer.setContentsParser(null));