private void registerRepository(Key location, Repository db)
{
db.IncrementOpen();
WeakReference<Repository> newRef = new WeakReference<Repository>(db);
WeakReference<Repository> oldRef = cacheMap.put(location, newRef);
Repository oldDb = oldRef != null ? oldRef.get() : null;
if (oldDb != null)
oldDb.Dispose();
}
private Repository openRepository(Key location, bool mustExist)
{
WeakReference<Repository> @ref = cacheMap.GetValue(location);
Repository db = @ref != null ? @ref.get() : null;
if (db == null)
{
lock (lockFor(location))
{
@ref = cacheMap.GetValue(location);
db = @ref != null ? @ref.get() : null;
if (db == null)
{
db = location.open(mustExist);
@ref = new WeakReference<Repository>(db);
cacheMap.AddOrReplace(location, @ref);
}
}
}
db.IncrementOpen();
return db;
}
