@Override
    protected String getQueryClassName() {
        return PrefixQuery.class.getSimpleName();
    }

    @Override
    public QueryBuilder execute(final QueryContext context, final Query query, final float boost) {
        if (query instanceof final PrefixQuery prefixQuery) {
            if (logger.isDebugEnabled()) {
                logger.debug("PrefixQuery: query={}, boost={}", query, boost);
            }

import static org.codelibs.fess.query.QueryFieldConfig.SITE_FIELD;

import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.apache.lucene.index.Term;
import org.apache.lucene.search.PrefixQuery;
import org.apache.lucene.search.Query;
import org.apache.lucene.search.TermQuery;
import org.codelibs.core.lang.StringUtil;
import org.codelibs.fess.Constants;
import org.codelibs.fess.entity.QueryContext;

                || block == UnicodeBlock.HIRAGANA //
                || block == UnicodeBlock.KATAKANA //
                || block == UnicodeBlock.HANGUL_SYLLABLES //
        ) {
            return QueryBuilders.prefixQuery(f, text);
        }
        return QueryBuilders.matchPhraseQuery(f, text);
    }

    /**
     * Gets the actual search field, replacing default field placeholder if needed.

            final String[] fields) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final QueryBuilder queryBuilder = QueryBuilders.prefixQuery(fessConfig.getIndexFieldId(), id);
        return getDocumentListByQuery(searchEngineClient, queryBuilder, fields);
    }

    /**
     * Deletes all child documents that belong to the specified parent document.

                final IndexingHelper indexingHelper = ComponentUtil.getIndexingHelper();
                final long count = indexingHelper.deleteDocumentByQuery(searchEngineClient,
                        QueryBuilders.prefixQuery(fessConfig.getIndexFieldUrl(), url));
                if (logger.isDebugEnabled()) {
                    logger.debug("Deleted {} documents for url prefix: {}", count, url);
                }
            } else {