public IndexNode(IndexPage indexPage)
{
ID = Guid.Empty;
IsDeleted = true; // Start with index node mark as deleted. Update this after save all stream on disk
Right = new IndexLink();
Left = new IndexLink();
DataPageID = uint.MaxValue;
IndexPage = indexPage;
}
public const int INDEX_NODE_SIZE = 81; // Node Index size
#endregion Fields
#region Constructors
public IndexNode(IndexPage indexPage)
{
ID = Guid.Empty;
IsDeleted = true; // Start with index node mark as deleted. Update this after save all stream on disk
Right = new IndexLink();
Left = new IndexLink();
DataPageID = uint.MaxValue;
IndexPage = indexPage;
}
private static IndexNode BinaryInsertNode(IndexLink baseLink, IndexNode baseNode, EntryInfo entry, Engine engine)
{
// Must insert my new nodo
var pageIndex = engine.GetFreeIndexPage();
var newNode = pageIndex.Nodes[pageIndex.NodeIndex];
baseLink.PageID = pageIndex.PageID;
baseLink.Index = pageIndex.NodeIndex;
newNode.UpdateFromEntry(entry);
newNode.DataPageID = DataFactory.GetStartDataPageID(engine);
if (pageIndex.PageID != baseNode.IndexPage.PageID)
engine.CacheIndexPage.AddPage(baseNode.IndexPage, true);
engine.CacheIndexPage.AddPage(pageIndex, true);
return newNode;
}
private static IndexNode BinaryInsertNode(IndexLink baseLink, IndexNode baseNode, EntryInfo entry, Engine engine)
{
// Must insert my new nodo
var pageIndex = engine.GetFreeIndexPage();
var newNode = pageIndex.Nodes[pageIndex.UsedNodeCount];
baseLink.PageID = pageIndex.PageID;
baseLink.Index = pageIndex.UsedNodeCount;
newNode.UpdateFromEntry(entry);
newNode.DataPageID = DataFactory.GetStartDataPageID(engine);
if (pageIndex.PageID != baseNode.IndexPage.PageID)
{
engine.CacheIndexPage.AddPage(baseNode.IndexPage, true);
}
engine.CacheIndexPage.AddPage(pageIndex, true);
return(newNode);
}
private static IndexNode GetChildIndexNode(IndexLink link, Engine engine)
{
var pageIndex = engine.CacheIndexPage.GetPage(link.PageID);
return(pageIndex.Nodes[link.Index]);
}
private static IndexNode GetChildIndexNode(IndexLink link, Engine engine)
{
var pageIndex = engine.CacheIndexPage.GetPage(link.PageID);
return pageIndex.Nodes[link.Index];
}
