I think there's a way to do what I want, but I can't quite get the
configuration down.
We've got an ASP.NET MVC 1 project that's using Windsor. We have two
web.config file (one for development, one for production). The
correct web.config is used depending on active configuration. All of
our windsor configuration is done in web.config. In this app, we have
an ITwitter interface which is used for loading recent tweets. We
have two implementations of ITweet: one is a debug one used during
development (doesn't actually hit the twitter URL so we don't use up
our hourly quota) and the other is used during production (this one
actually hits the twitter URL and returns tweets).
Most of the pages using ITwitter had output caching enabled. This
further reduced the amount of times the twitter URL was hit. However,
due to some changes, we need to turn off caching in ASP.NET. What I
want to do is create an ITwitter implementation that does the caching
for me. I would like this cached implementation to be able to cache
any ITwitter implementation. Something like this:
public class CachedTwitter : ITwitter
{
private readonly ITwitter twitter;
public CachedTwitter(ITwitter twitter)
{
this.twitter = twitter;
}
// rest of ITwitter implementation which
// delegates calls to this.twitter
}
My problem is I'll have two ITwitter components in my web.config --
one that does the actual work and one that does the caching. I know I
can use the ${component.id} syntax to get the CachedTwitter one to use
another ITwitter implementation as the constructor arg, but how can I
control (or can I control?) which ITwitter is used by the web app? I
obviously want it to use the cached implementation, but with two
ITwitter implementations, how will windsor know which to use -- and
can I give it any "hints" to help it out?
Thanks.
---
Patrick Steele
http://weblogs.asp.net/psteele
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