/// <summary>
/// Retrieve the object from the cache. A string key is passed as parameter.
/// </summary>
/// <param name="key">key of the entry.</param>
/// <returns>cache entry.</returns>
internal override CacheEntry GetInternal(object key, bool isUserOperation, OperationContext operationContext)
{
if (ServerMonitor.MonitorActivity)
{
ServerMonitor.LogClientActivity("LocalCache.Get", "");
}
if (_cacheStore == null)
{
throw new InvalidOperationException();
}
CacheEntry e = (CacheEntry)_cacheStore.Get(key);
if (e != null)
{
EvictionHint evh = e.EvictionHint;
if (isUserOperation && _evictionPolicy != null && evh != null && evh.IsVariant)
{
_evictionPolicy.Notify(key, evh, null);
}
}
return(e);
}
public void UpdateDirtyFlags(IList <long> toUpdate)
{
foreach (long rowId in toUpdate)
{
CacheItem citem = null;
if (_cache.TryGetValue(rowId, out citem))
{
citem.Flag.UnsetBit(BitsetConstants.DocumentDirty);
citem.Flag.UnsetBit(BitsetConstants.MetaDataDirty);
//Once item is persisted, it should be again added to the eviction policy
if (!citem.Flag.IsAnyBitSet(BitsetConstants.MarkedForDeletion))
{
_evictionPolicy.Notify(rowId, null, citem.EvictionHint);
}
}
}
}
public void Notify(object key, EvictionHint oldhint, EvictionHint newHint)
{
Sync.AcquireWriterLock(Timeout.Infinite);
try
{
_evctPolicy.Notify(key, oldhint, newHint);
}
finally
{
Sync.ReleaseWriterLock();
}
}
/// <summary>
/// Retrieve the object from the cache. A string key is passed as parameter.
/// </summary>
/// <param name="key">key of the entry.</param>
/// <returns>cache entry.</returns>
internal override CacheEntry GetInternal(object key, bool isUserOperation, OperationContext operationContext, bool cloneEntry, bool needUserPayload)
{
if (_cacheStore == null)
{
throw new InvalidOperationException();
}
CacheEntry e = (CacheEntry)_cacheStore.Get(key);
if (e != null)
{
EvictionHint evh = e.EvictionHint;
if (isUserOperation && _evictionPolicy != null && evh != null && evh.IsVariant)
{
_evictionPolicy.Notify(key, evh, null);
}
e.MarkInUse(NCModulesConstants.Global);
if (cloneEntry)
{
e = e.DeepClone(operationContext.UseObjectPool? _context.TransactionalPoolManager: _context.FakeObjectPool, true);
}
}
return(e);
}
/// <summary>
/// Método interno acionado para adicionar um novo item.
/// </summary>
/// <param name="key">Chave do item.</param>
/// <param name="cacheEntry">Instancia da entrada que está sendo adicionada.</param>
/// <param name="isUserOperation">True se for uma operação do usuário.</param>
/// <returns>Resultado da operação.</returns>
internal override CacheAddResult AddInternal(object key, CacheEntry cacheEntry, bool isUserOperation)
{
if (_cacheStore == null)
{
throw new InvalidOperationException();
}
if (_evictionPolicy != null)
{
if (cacheEntry.EvictionHint is PriorityEvictionHint)
{
cacheEntry.Priority = ((PriorityEvictionHint)cacheEntry.EvictionHint).Priority;
}
cacheEntry.EvictionHint = _evictionPolicy.CompatibleHint(cacheEntry.EvictionHint);
}
StoreAddResult result = _cacheStore.Add(key, cacheEntry);
if ((result == StoreAddResult.Success || result == StoreAddResult.SuccessNearEviction) && (_evictionPolicy != null))
{
_evictionPolicy.Notify(key, null, cacheEntry.EvictionHint);
}
switch (result)
{
case StoreAddResult.Success:
return(CacheAddResult.Success);
case StoreAddResult.KeyExists:
return(CacheAddResult.KeyExists);
case StoreAddResult.NotEnoughSpace:
return(CacheAddResult.NeedsEviction);
case StoreAddResult.SuccessNearEviction:
return(CacheAddResult.SuccessNearEviction);
}
return(CacheAddResult.Failure);
}
