assertTrue(dataconfigpager.isExistNextPage());
        dataconfigpager.setPageSize(0);
        assertEquals(25, dataconfigpager.getPageSize());
        dataconfigpager.setPageSize(999);
        assertEquals(999, dataconfigpager.getPageSize());
        dataconfigpager.setCurrentPageNumber(0);
        assertEquals(1, dataconfigpager.getCurrentPageNumber());
        dataconfigpager.setCurrentPageNumber(999);

        assertTrue(duplicatehostpager.isExistNextPage());
        duplicatehostpager.setPageSize(0);
        assertEquals(25, duplicatehostpager.getPageSize());
        duplicatehostpager.setPageSize(999);
        assertEquals(999, duplicatehostpager.getPageSize());
        duplicatehostpager.setCurrentPageNumber(0);
        assertEquals(1, duplicatehostpager.getCurrentPageNumber());

        return getStemmerOverrideFile(dictId).map(file -> {
            final int pageSize = stemmerOvberridePager.getPageSize();
            final PagingList<StemmerOverrideItem> stemmerOvberrideList =
                    file.selectList((stemmerOvberridePager.getCurrentPageNumber() - 1) * pageSize, pageSize);

            // update pager

    public List<CharMappingItem> getCharMappingList(final String dictId, final CharMappingPager charMappingPager) {
        return getCharMappingFile(dictId).map(file -> {
            final int pageSize = charMappingPager.getPageSize();
            final PagingList<CharMappingItem> charMappingList =
                    file.selectList((charMappingPager.getCurrentPageNumber() - 1) * pageSize, pageSize);

            // update pager

        assertEquals(20, itemList1.getPageSize());

        final PagingList<SynonymItem> itemList2 = synonymFile.selectList(4, 2);
        assertEquals(1, itemList2.size());
        assertEquals(5, itemList2.getAllRecordCount());
        assertEquals(3, itemList2.getCurrentPageNumber());
        assertEquals(2, itemList2.getPageSize());

        assertEquals(0, synonymFile.selectList(5, 5).size());

        return existNextPage;
    }

    public void setExistNextPage(final boolean existNextPage) {
        this.existNextPage = existNextPage;
    }

    public int getPageSize() {
        if (pageSize <= 0) {
            pageSize = getDefaultPageSize();
        }
        return pageSize;
    }

    public void setPageSize(final int pageSize) {
        this.pageSize = pageSize;

        return existNextPage;
    }

    public void setExistNextPage(final boolean existNextPage) {
        this.existNextPage = existNextPage;
    }

    public int getPageSize() {
        if (pageSize <= 0) {
            pageSize = getDefaultPageSize();
        }
        return pageSize;
    }

    public void setPageSize(final int pageSize) {
        this.pageSize = pageSize;

        return existNextPage;
    }

    public void setExistNextPage(final boolean existNextPage) {
        this.existNextPage = existNextPage;
    }

    public int getPageSize() {
        if (pageSize <= 0) {
            pageSize = getDefaultPageSize();
        }
        return pageSize;
    }

    public void setPageSize(final int pageSize) {
        this.pageSize = pageSize;

    public boolean isExistNextPage() {
        return existNextPage;
    }

    public void setExistNextPage(final boolean existNextPage) {
        this.existNextPage = existNextPage;
    }

    public int getPageSize() {
        if (pageSize <= 0) {
            pageSize = getDefaultPageSize();
        }
        return pageSize;
    }

    public void setPageSize(final int pageSize) {
        this.pageSize = pageSize;

    public boolean isExistNextPage() {
        return existNextPage;
    }

    public void setExistNextPage(final boolean existNextPage) {
        this.existNextPage = existNextPage;
    }

    public int getPageSize() {
        if (pageSize <= 0) {
            pageSize = getDefaultPageSize();
        }
        return pageSize;
    }

    public void setPageSize(final int pageSize) {
        this.pageSize = pageSize;