protected FixedSizeCollection(DataFile data, int recordSize)
{
if (recordSize <= 0)
throw new ArgumentException();
this.data = data;
this.recordSize = recordSize;
keyPositionCache = new MemoryCache(513, 750, 15);
}
public LocalRowCache(DeveelDbConnection connection)
{
this.connection = connection;
if (connection.Settings != null) {
rowCache = new SizeLimitedCache (connection.Settings.RowCacheSize);
} else {
int defaultCacheSize = new DeveelDbConnectionStringBuilder ().RowCacheSize;
rowCache = new SizeLimitedCache (defaultCacheSize);
}
}
public StoreTreeSystem(IStore nodeStore, int maxBranchChildren, int maxLeafSize, long nodeMaxCacheMemory,
long branchCacheMemory)
{
maxBranchSize = maxBranchChildren;
maxLeafByteSize = maxLeafSize;
this.nodeStore = nodeStore;
nodeHeapMaxSize = nodeMaxCacheMemory;
versions = new List<VersionInfo>();
// Allocate some values for the branch cache,
long branchSizeEstimate = (maxBranchChildren*24) + 64;
// The number of elements in the branch cache
int branchCacheElements = (int) (branchCacheMemory/branchSizeEstimate);
// Find a close prime to this
int branchPrime = Cache.ClosestPrime(branchCacheElements + 20);
// Allocate the cache
branchCache = new MemoryCache(branchPrime, branchCacheElements, 20);
initialized = false;
}
public LocalRowCache(DeveelDbConnection connection)
{
this.connection = connection;
rowCache = new SizeLimitedCache(connection.Settings.RowCacheSize);
}
public LocalRowCache(DeveelDbConnection connection)
{
this.connection = connection;
rowCache = new MemoryCache(connection.Settings.RowCacheSize, connection.Settings.MaxCacheSize, 20);
}