public static RadixTreePageBackingObject FromPage(IPage page)
{
var result = new RadixTreePageBackingObject(page.Index);
var items = PageFormatter.ReadVariableSizeItems(page);
foreach (var item in items)
{
result.Items.Add(item);
}
return(result);
}
private void CheckRoot()
{
if (_rootNodeReference == null)
{
var headerPage = _pageManager.FetchPage(0);
_rootPageIndex = ((HeadingPageHeader)PageFormatter.GetPageHeader(headerPage)).AccessMethodPageIndex;
var page = _pageManager.FetchPage(_rootPageIndex);
var items = PageFormatter.ReadVariableSizeItems(page);
if (items.Any())
{
// root page already has an item
_rootNodeReference = new DbItemReference(_rootPageIndex, 0);
}
else
{
var node = new RadixTreeNode(256);
PageFormatter.AddVariableSizeItem(page, GetNodeBytes(node, GetNodeSize(0, 256)));
_rootNodeReference = new DbItemReference(_rootPageIndex, 0);
_pageManager.UpdatePage(page);
}
}
}
