}
        return OptionalEntity.empty();
    }

    @Override
    public synchronized PagingList<CharMappingItem> selectList(final int offset, final int size) {
        if (mappingItemList == null) {
            reload(null);
        }

        if (offset >= mappingItemList.size() || offset < 0) {
            return new PagingList<>(Collections.<CharMappingItem> emptyList(), offset, size, mappingItemList.size());
        }

        return OptionalEntity.empty();
    }

    @Override
    public synchronized PagingList<StemmerOverrideItem> selectList(final int offset, final int size) {
        if (stemmerOverrideItemList == null) {
            reload(null);
        }

        if (offset >= stemmerOverrideItemList.size() || offset < 0) {
            return new PagingList<>(Collections.<StemmerOverrideItem> emptyList(), offset, size, stemmerOverrideItemList.size());

        }
        return OptionalEntity.empty();
    }

    @Override
    public synchronized PagingList<SynonymItem> selectList(final int offset, final int size) {
        if (synonymItemList == null) {
            reload(null);
        }

        if (offset >= synonymItemList.size() || offset < 0) {
            return new PagingList<>(Collections.<SynonymItem> emptyList(), offset, size, synonymItemList.size());
        }