this.allPageCount = allPageCount;
    }

    /**
     * Checks if a previous page exists.
     * @return true if a previous page exists, false otherwise.
     */
    public boolean isExistPrePage() {
        return existPrePage;
    }

    /**
     * Sets whether a previous page exists.
     * @param existPrePage true if a previous page exists, false otherwise.
     */

    }

    /**
     * Checks whether a previous page exists in the pagination.
     *
     * @return true if a previous page exists, false otherwise
     */
    public boolean isExistPrePage() {
        return existPrePage;
    }

    /**
     * Sets the flag indicating whether a previous page exists.
     *
     * @param existPrePage true if a previous page exists, false otherwise
     */

        synonymPager.clear();
        assertEquals(0, synonymPager.getAllRecordCount());
        assertEquals(0, synonymPager.getAllPageCount());
        assertEquals(false, synonymPager.isExistPrePage());
        assertEquals(false, synonymPager.isExistNextPage());
        assertEquals(25, synonymPager.getPageSize());
        assertEquals(1, synonymPager.getCurrentPageNumber());
        assertNull(synonymPager.id);

        labelTypePager.clear();
        assertEquals(0, labelTypePager.getAllRecordCount());
        assertEquals(0, labelTypePager.getAllPageCount());
        assertEquals(false, labelTypePager.isExistPrePage());
        assertEquals(false, labelTypePager.isExistNextPage());
        assertEquals(25, labelTypePager.getPageSize());
        assertEquals(1, labelTypePager.getCurrentPageNumber());
        assertNull(labelTypePager.id);

        relatedContentPager.clear();
        assertEquals(0, relatedContentPager.getAllRecordCount());
        assertEquals(0, relatedContentPager.getAllPageCount());
        assertEquals(false, relatedContentPager.isExistPrePage());
        assertEquals(false, relatedContentPager.isExistNextPage());
        assertEquals(25, relatedContentPager.getPageSize());
        assertEquals(1, relatedContentPager.getCurrentPageNumber());

        roleTypePager.clear();
        assertEquals(0, roleTypePager.getAllRecordCount());
        assertEquals(0, roleTypePager.getAllPageCount());
        assertEquals(false, roleTypePager.isExistPrePage());
        assertEquals(false, roleTypePager.isExistNextPage());
        assertEquals(25, roleTypePager.getPageSize());
        assertEquals(1, roleTypePager.getCurrentPageNumber());
        assertNull(roleTypePager.id);

        keyMatchPager.clear();
        assertEquals(0, keyMatchPager.getAllRecordCount());
        assertEquals(0, keyMatchPager.getAllPageCount());
        assertEquals(false, keyMatchPager.isExistPrePage());
        assertEquals(false, keyMatchPager.isExistNextPage());
        assertEquals(25, keyMatchPager.getPageSize());
        assertEquals(1, keyMatchPager.getCurrentPageNumber());
        assertNull(keyMatchPager.id);

        RolePager rolePager = new RolePager();

        rolePager.clear();
        assertEquals(0, rolePager.getAllRecordCount());
        assertEquals(0, rolePager.getAllPageCount());
        assertEquals(false, rolePager.isExistPrePage());
        assertEquals(false, rolePager.isExistNextPage());
        assertEquals(25, rolePager.getPageSize());
        assertEquals(1, rolePager.getCurrentPageNumber());
        assertNull(rolePager.id);

        searchLogPager.clear();
        assertEquals(0, searchLogPager.getAllRecordCount());
        assertEquals(0, searchLogPager.getAllPageCount());
        assertEquals(false, searchLogPager.isExistPrePage());
        assertEquals(false, searchLogPager.isExistNextPage());
        assertEquals(25, searchLogPager.getPageSize());
        assertEquals(1, searchLogPager.getCurrentPageNumber());

        UserPager userPager = new UserPager();

        userPager.clear();
        assertEquals(0, userPager.getAllRecordCount());
        assertEquals(0, userPager.getAllPageCount());
        assertEquals(false, userPager.isExistPrePage());
        assertEquals(false, userPager.isExistNextPage());
        assertEquals(25, userPager.getPageSize());
        assertEquals(1, userPager.getCurrentPageNumber());
        assertNull(userPager.id);