/// <summary>
/// 绝对时间点超时类构造函数
/// </summary>
/// <param name="key">键值</param>
/// <param name="value">缓存的对象</param>
/// <param name="expire">绝对时间点</param>
public CacheItem(string key, object value, DateTime expire)
{
this._key = key;
this._value = value;
this._expireMode = CacheExpireModeEnum.AbsoluteTimePoint;
this._expire = expire;
this._lastAccess = DateTime.Now;
this._ttl = -1;
this.OnCacheItemRemoved = null;
}
/// <summary>
/// 绝对时间点超时类构造函数
/// </summary>
/// <param name="key">键值</param>
/// <param name="value">缓存的对象</param>
/// <param name="expire">绝对时间点</param>
/// <param name="onCacheItemRemoved">对象被从缓存中移除时的回调函数</param>
public CacheItem(string key, object value, DateTime expire, CacheItemRemovedHandler onCacheItemRemoved)
{
this._key = key;
this._value = value;
this._expireMode = CacheExpireModeEnum.AbsoluteTimePoint;
this._expire = expire;
this._lastAccess = DateTime.Now;
this._ttl = -1;
this.OnCacheItemRemoved += new CacheItemRemovedHandler(onCacheItemRemoved);
}
/// <summary>
/// 时间间隔类构造函数
/// </summary>
/// <param name="key">键值</param>
/// <param name="value">缓存的对象</param>
/// <param name="timeToLive">距最后一次访问的时间间隔（分钟）</param>
/// <param name="onCacheItemRemoved">对象被从缓存中移除时的回调函数</param>
public CacheItem(string key, object value, int timeToLive, CacheItemRemovedHandler onCacheItemRemoved)
{
this._key = key;
this._value = value;
this._expireMode = CacheExpireModeEnum.IntervalAfterLastAccess;
this._expire = DateTime.Now.AddYears(100);
this._lastAccess = DateTime.Now;
this._ttl = timeToLive;
this.OnCacheItemRemoved += new CacheItemRemovedHandler(onCacheItemRemoved);
}
/// <summary>
/// 时间间隔类构造函数
/// </summary>
/// <param name="key">键值</param>
/// <param name="value">缓存的对象</param>
/// <param name="timeToLive">距最后一次访问的时间间隔（分钟）</param>
/// <param name="onCacheItemRemoved">对象被从缓存中移除时的回调函数</param>
public CacheItem(string key, object value, int timeToLive, CacheItemRemovedHandler onCacheItemRemoved)
{
this._key = key;
this._value = value;
this._expireMode = CacheExpireModeEnum.IntervalAfterLastAccess;
this._expire = DateTime.Now.AddYears(100);
this._lastAccess = DateTime.Now;
this._ttl = timeToLive;
this.OnCacheItemRemoved += new CacheItemRemovedHandler(onCacheItemRemoved);
}
/// <summary>
/// 依赖于外部对象类构造函数
/// </summary>
/// <param name="key">键值</param>
/// <param name="value">缓存的对象</param>
/// <param name="dependency">依赖对象</param>
/// <param name="onCacheItemRemoved">对象被从缓存中移除时的回调函数</param>
public CacheItem(string key, object value, IDependency dependency, CacheItemRemovedHandler onCacheItemRemoved)
{
this._key = key;
this._value = value;
this._expireMode = CacheExpireModeEnum.Depend;
this._expire = DateTime.Now.AddYears(100);
this._lastAccess = DateTime.Now;
this._ttl = -1;
this._dependency = dependency;
this.OnCacheItemRemoved += new CacheItemRemovedHandler(onCacheItemRemoved);
}
/// <summary>
/// 依赖于外部对象类构造函数
/// </summary>
/// <param name="key">键值</param>
/// <param name="value">缓存的对象</param>
/// <param name="dependency">依赖对象</param>
/// <param name="onCacheItemRemoved">对象被从缓存中移除时的回调函数</param>
public CacheItem(string key, object value, IDependency dependency, CacheItemRemovedHandler onCacheItemRemoved)
{
this._key = key;
this._value = value;
this._expireMode = CacheExpireModeEnum.Depend;
this._expire = DateTime.Now.AddYears(100);
this._lastAccess = DateTime.Now;
this._ttl = -1;
this._dependency = dependency;
this.OnCacheItemRemoved += new CacheItemRemovedHandler(onCacheItemRemoved);
}
/// <summary>
/// 缓存更新的调度机制
/// </summary>
/// <param name="key">键名</param>
/// <param name="initValue">原来的数据</param>
/// <param name="loadedValue">更新后的数据</param>
/// <param name="cache">缓存对象</param>
/// <param name="expire">更新时间</param>
/// <param name="reason">缓存对象超时模式枚举</param>
/// <param name="cacheReloadEvent">cache重载回调</param>
public virtual void ReloadCache(string key, object initValue, object loadedValue, Cache cache, DateTime expire, CacheExpireModeEnum reason, CacheItemRemovedHandler cacheReloadEvent)
{
if (cache != null)
{
if (loadedValue != null)
{
SetCacheRefreshAfterLoad(key, loadedValue, cache, expire, cacheReloadEvent);
}
else
{
SetCacheRefreshWhenFail(key, initValue, cache, cacheReloadEvent);
}
}
}
/// <summary>
/// 缓存更新的调度机制
/// </summary>
/// <param name="key">键名</param>
/// <param name="initValue">原来的数据</param>
/// <param name="loadedValue">更新后的数据</param>
/// <param name="cache">缓存对象</param>
/// <param name="expire">更新时间</param>
/// <param name="reason">缓存对象超时模式枚举</param>
/// <param name="cacheReloadEvent">cache重载回调</param>
public virtual void ReloadCache(string key, object initValue, object loadedValue, Cache cache, DateTime expire, CacheExpireModeEnum reason, CacheItemRemovedHandler cacheReloadEvent)
{
if (cache != null)
{
if (loadedValue != null)
{
SetCacheRefreshAfterLoad(key, loadedValue, cache, expire, cacheReloadEvent);
}
else
{
SetCacheRefreshWhenFail(key, initValue, cache, cacheReloadEvent);
}
}
}