this.matchWordFirst = matchWordFirst;
    }

    public void setSkipDuplicateWords(final boolean skipDuplicateWords) {
        this.skipDuplicateWords = skipDuplicateWords;
    }

    public void addLang(final String lang) {
        languages.add(lang);
    }

    @Override
    protected String getValidationError() {
        return null;
    }

    @Override

            roleQueryHelper.build(SearchRequestType.SUGGEST).stream().forEach(builder::addRole);
            builder.setSize(parameter.getNum());
            stream(langs).of(stream -> stream.forEach(builder::addLang));

            stream(parameter.getTags()).of(stream -> stream.forEach(builder::addTag));
            final String key = ComponentUtil.getVirtualHostHelper().getVirtualHostKey();
            if (StringUtil.isNotBlank(key)) {