public override Target this[string id]
{
get
{
Target target = null;
if (_plusTree == null)
{
return(target);
}
if (_targetCache != null)
{
target = _targetCache[id];
if (target != null)
{
return(target);
}
}
if (_plusTree.ContainsKey(id))
{
target = (Target)_plusTree[id];
if (target != null && _targetCache != null)
{
_targetCache.Add(target);
}
}
return(target);
}
}
public object this[string key]
{
get
{
if (treeCache.ContainsKey(key))
{
return(treeCache[key]);
}
return(null);
}
set
{
treeCache[key] = value;
SaveCache();
}
}
private void Initialize(string workingDir, bool createNotFound)
{
if (String.IsNullOrEmpty(workingDir))
{
throw new InvalidOperationException();
}
if (!Directory.Exists(workingDir))
{
Directory.CreateDirectory(workingDir);
}
if (_isSystem)
{
_treeFileName = Path.Combine(workingDir, "SLinkT2.6.10621.1.dat");
_blockFileName = Path.Combine(workingDir, "SLinkB2.6.10621.1.dat");
}
else
{
string tempFile = Path.GetFileNameWithoutExtension(
Path.GetTempFileName());
_treeFileName = Path.Combine(workingDir, tempFile + "Tree.dat");
_blockFileName = Path.Combine(workingDir, tempFile + "Block.dat");
}
if (File.Exists(_treeFileName) && File.Exists(_blockFileName))
{
_isExisted = true;
_plusTree = SerializedTree.ReOpen(_treeFileName, _blockFileName);
if (_plusTree.ContainsKey("$DataCount$"))
{
_count = Convert.ToInt32(_plusTree["$DataCount$"]);
}
}
else
{
_count = 0;
if (createNotFound)
{
_plusTree = SerializedTree.Initialize(_treeFileName,
_blockFileName, 64);
}
}
if (_plusTree != null)
{
_targetCache = new DatabaseTargetCache(100);
}
}
public bool Contains(string key)
{
return(_treeCache.ContainsKey(key));
}