/**
* @param cu cache对象
* @param objectName objectName 索引值(相当于key-value中的key)
* @return 取得所有当前索引目标的数目
*/
public static int getItemsTotalByCache(CacheUtil cu, String objectName) {
int back = 0;
Long result = (Long) cu.getCacheObject(objectName);
if (result == null) {
back = 0;
}
return back;
}
public static Object loadByCacheBasic(CacheUtil cu, String objectName) {
if (CacheKey.IS_START_CACHE == false) {
return null;
}
Object result = cu.getCacheObject(objectName);
if (result != null) {
return result;
} else {
return null;
}
}
public static List loadByCache(CacheUtil cu, String objectName) {
if (CacheKey.IS_START_CACHE == false) {
return null;
}
List back = null;
List result = (List) cu.getCacheObject(objectName);
if (result != null) {
back = result;
}
return back;
}
/**
* @param cu cache对象
* @param objectName 索引值(相当于key-value中的key)
* @return 仅仅返回所需新闻数据前十条
*/
public static List loadByCacheNews(CacheUtil cu, String objectName) {
List back = null;
List result = (List) cu.getCacheObject(objectName);
if (result != null) {
back = new ArrayList();
int length = result.size();
for (int i = 0; i < (10 > length ? length : 10); i++) {
back.add(result.get(i));
}
}
return back;
}
/**
* @param cu cache对象
* @param page 分页对新
* @param objectName 索引值(相当于key-value中的key)
* @return 一个存储所需数据对象的List
*/
public static List loadByCache(CacheUtil cu, PageBean page, String objectName) {
List back = null;
List result = (List) cu.getCacheObject(objectName);
if (result != null) {
back = new ArrayList();
int count =
(Integer.parseInt(page.getPageIndex()) - 1) * Integer.parseInt(page.getPageCount());
int length = result.size();
for (int i = count;
i
< ((count + Integer.parseInt(page.getPageCount())) < length
? (count + Integer.parseInt(page.getPageCount()))
: length);
i++) {
back.add(result.get(i));
}
}
return back;
}
