1. “cache is not a constructor”错误的含义 “cache is not a constructor”这个错误信息表明你尝试使用cache作为一个构造函数来创建对象,但cache并不是一个构造函数,而是一个对象或者变量。在JavaScript中,构造函数是用来创建和初始化对象的特殊函数,而普通变量或对象则不能直接用作构造函数。 2. 可能导致该错误...
When this resource changes, the cached object becomes obsolete and is removed from the cache. start DateTime The time against which to check the last modified date of the directory or file. Examples The following code example uses this constructor to instantiate a CacheDependency object, then ...
// Make key1 dependent on a file.CacheDependency dependency =newCacheDependency(Server.MapPath("isbn.xml")); Cache.Insert("key1","Value 1", dependency); Remarks If the directory or file specified in thefilenameparameter is not found in the file system, it will be treated as missing. If...
Redis是一个开源(BSD许可),内存存储的数据结构服务器,可用作数据库,高速缓存和消息队列代理。它支持字符串、哈希表、列表、集合、有序集合,位图,hyperloglogs等数据类型。内置复制、Lua脚本、LRU收回、事务以及不同级别磁盘持久化功能,同时通过Redis Sentinel提供高可用,通过Redis Cluster提供自动分区。 参考文章: 基础教...
In addition, there is no requirement that concrete implementations of the ObjectCache class must be singletons.Note: MemoryCache is not a singleton, but you should create only a few or potentially only one MemoryCache instance and code that caches items should use those instances....
");Assert.notNull(value,"Value must not be null!");returnexecute(name,connection->{if(isLockingCacheWriter()){doLock(name,connection);}try{//noinspection ConstantConditionsif(connection.setNX(key,value)){if(shouldExpireWithin(ttl)){connection.pExpire(key,ttl.toMillis());}returnnull;}return...
This constructor is invoked by the runtime infrastructure (GetNSObject(IntPtr)) to create a new managed representation for a pointer to an unmanaged Objective-C object. Developers should not invoke this method directly, instead they should call the GetNSObject method as it will prevent two insta...
process shutdown is requested function has to handle two scenarios: connection to PRIMARY fails because: PRIMARY died and group relects a new member network to PRIMARY lost, but GR sees no fault and PRIMARY does not change. Therefore, if the connection to PRIMARY fails, wait for change of ...
public CacheUsernameDownloadSettings withExtendedGroups(Boolean extendedGroups) Set the extendedGroups property: Whether or not Extended Groups is enabled. Parameters: extendedGroups - the extendedGroups value to set. Returns: the CacheUsernameDownloadSettings object itself.with...
The cache uses a least-recently-used (LRU) culling strategy. Note that each process will have its own private cache instance, which means no cross-process caching is possible. This also means the local memory cache isn’t particularly memory-efficient, so it’s probably not a good choice fo...