Here's rest of the code:
public class Memcache {
private static int EXPIRY = 60*60*24*30;
private static final String POSTIDKEY="POSTID_";
private static boolean has(String key) {
return MemcacheServiceFactory.getMemcacheService().contains(key) &&
get(key).length()>0;
}
private static String get(String key) {
try {
return (String)
MemcacheServiceFactory.getMemcacheService().get(key);
} catch (Exception e) { return ""; }
}
private static void put(String key, String value, int expiry) {
MemcacheServiceFactory.getMemcacheService().put(key, value,
Expiration.byDeltaSeconds(expiry));
}
private static void delete(String key) {
MemcacheServiceFactory.getMemcacheService().delete(key);
}
public static boolean hasById(Long id) { return has(POSTIDKEY+id); }
public static String getById(Long id) { return get(POSTIDKEY+id); }
public static void putById(Long id, String value) { put(POSTIDKEY+id,
value, EXPIRY); }
public static void flushById(Long id) { delete(POSTIDKEY+id); }
}
public static String byid(HttpServletRequest req) {
Long id=0L;
try { id=Long.parseLong(req.getParameter("id")); } catch (Exception
e) {}
if (id==0) return "";
if (Memcache.hasById(id)) return Memcache.getById(id);
String res = V1Post.getById(id);
Memcache.putById(id, res);
return res;
}
Does anyone know where the error is in my code? And why Memcache.hasById(id)
seems to always return false?
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