asp.net自定义缓存依赖,刷新所有在某一时刻 [英] asp.net custom cache dependency, refresh all in at one moment
问题描述
我有一个自定义缓存依赖
I've got a custom cache dependency
class MyCacheDependency : CacheDependency
{
private const int PoolInterval = 5000;
private readonly Timer _timer;
private readonly string _readedContent;
public MyCacheDependency()
{
_timer = new Timer(CheckDependencyCallback, this, PoolInterval, PoolInterval);
_readedContent = ReadContentFromFile();
}
private void CheckDependencyCallback(object sender)
{
lock (_timer)
{
if (_readedContent != ReadContentFromFile())
{
NotifyDependencyChanged(sender, EventArgs.Empty);
}
}
}
private static string ReadContentFromFile()
{
return File.ReadAllText(@"C:\file.txt");
}
protected override void DependencyDispose()
{
if (_timer != null) _timer.Dispose();
base.DependencyDispose();
}
}
它可以完美,但我想知道如何使所有对象的刷新在一个时间。在这里,我把到缓存中的对象2
It works perfectly, but Im wondering how to make a refresh of all the object in one time. Here I put into cache 2 objects
Cache.Insert(C1,VAR1,新MyCacheDependency());
Cache.Insert("c1", "var1", new MyCacheDependency());
Cache.Insert(C2,vae2,新MyCacheDependency());
Cache.Insert("c2", "vae2", new MyCacheDependency());
它很好,但是当C1将检测的变化如何强制C2以不等待5秒钟来检查,但我想自称DependencyDispose当C1做到这一点。
Its fine, but when c1 will detect change how to force c2 to don't wait 5 seconds to check but I want to call itself DependencyDispose when c1 do it.
在换句话说,如果c1检测变化,C2也应该调用DependencyDispose
In other words, if c1 detects change, c2 also should call DependencyDispose
推荐答案
也许你可以添加这将在您的CheckDependencyCallback()被触发静态事件 - 方法。在您的构造函数MyCacheDependency你会再附上一个事件处理程序。当事件被触发,你可以从那里打电话NotifyDependencyChanged或DependencyDispose。这样,所有的MyCacheDependency对象将作出反应的变化。
Maybe you could add a static event which would be fired in your CheckDependencyCallback()-method. In your constructor for the MyCacheDependency you would then attach an eventhandler. When the event is fired you could call NotifyDependencyChanged or DependencyDispose from there. In this way all MyCacheDependency-objects would react to a change.
class MyCacheDependency : CacheDependency
{
private const int PoolInterval = 5000;
private readonly Timer _timer;
private readonly string _readedContent;
public static event EventHandler MyEvent;
public MyCacheDependency()
{
_timer = new Timer(CheckDependencyCallback, this, PoolInterval, PoolInterval);
_readedContent = ReadContentFromFile();
MyEvent += new EventHandler(MyEventHandler);
}
protected void MyEventHandler(object sender, EventArgs e) {
NotifyDependencyChanged(sender, e);
}
private void CheckDependencyCallback(object sender)
{
lock (_timer)
{
if (_readedContent != ReadContentFromFile())
{
if(MyEvent!=null)
MyEvent(sender, EventArgs.Empty);
}
}
}
private static string ReadContentFromFile()
{
return File.ReadAllText(@"C:\file.txt");
}
protected override void DependencyDispose()
{
if (_timer != null) _timer.Dispose();
base.DependencyDispose();
}
}
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