public void RemoveCache(string catalogCacheName)
{
lock (this)
{
CatalogCache cache = (CatalogCache)_caches[catalogCacheName];
if (cache != null)
{
_caches.Remove(catalogCacheName);
}
}
}
public void RemoveSession(RemoteServerSession session)
{
lock (this)
{
CatalogCache cache = (CatalogCache)_caches[session.CatalogCacheName];
if (cache != null)
{
cache.Sessions.Remove(session);
}
}
}
public void AddSession(RemoteServerSession session)
{
lock (this)
{
CatalogCache cache = (CatalogCache)_caches[session.CatalogCacheName];
if (cache == null)
{
cache = new CatalogCache(session.CatalogCacheName, session.Server.CacheTimeStamp, _defaultCachedObjects);
_caches.Add(cache.CacheName, cache);
}
cache.Sessions.Add(session);
}
}
public void RemovePlanDescriptor(RemoteServerSession session, string catalogObjectName)
{
CatalogCache cache = (CatalogCache)_caches[session.CatalogCacheName];
if (cache != null)
{
lock (cache)
{
int index = cache.CachedObjects.IndexOfName(catalogObjectName);
if (index >= 0)
{
cache.CachedObjects.RemoveAt(index);
}
}
}
}
public string[] GetRequiredObjects(RemoteServerSession session, Schema.Catalog catalog, long cacheTimeStamp, out long clientCacheTimeStamp)
{
List <string> requiredObjects = new List <string>();
CatalogCache cache = (CatalogCache)_caches[session.CatalogCacheName];
lock (cache)
{
bool cacheChanged = cache.EnsureConsistent(cacheTimeStamp, _defaultCachedObjects);
foreach (Schema.Object objectValue in catalog)
{
if (!cache.CachedObjects.ContainsName(objectValue.Name))
{
if (!((objectValue is Schema.DerivedTableVar) && (objectValue.Name == ((Schema.DerivedTableVar)objectValue).SessionObjectName)))
{
cache.CachedObjects.Add(objectValue);
}
requiredObjects.Add(objectValue.Name);
}
}
if (!cacheChanged)
{
cache.UpdateTimeStamp();
}
clientCacheTimeStamp = cache.TimeStamp;
}
string[] result = new string[requiredObjects.Count];
requiredObjects.CopyTo(result, 0);
#if LOGCACHEEVENTS
ASession.Server.LogMessage(String.Format("Session {0} cache timestamp updated to {1} with required objects: {2}", ASession.SessionID.ToString(), AClientCacheTimeStamp.ToString(), ExceptionUtility.StringsToCommaList(requiredObjects)));
#endif
return(result);
}
