public override void Replace(IPersistentStore store, Index index, NodeAVL n)
{
NodeAVLDisk node = this;
RowAVLDisk row = this.row;
if (!row.KeepInMemory(true))
{
row = (RowAVLDisk)store.Get(this.row, true);
node = (NodeAVLDisk)row.GetNode(this._iId);
}
if (node._iParent == -1)
{
if (n != null)
{
n = n.SetParent(store, null);
}
store.SetAccessor(index, n);
}
else
{
bool isLeft = node.IsFromLeft(store);
node.GetParent(store).Set(store, isLeft, n);
}
row.KeepInMemory(false);
}
public override NodeAVL SetParent(IPersistentStore store, NodeAVL n)
{
NodeAVLDisk node = this;
RowAVLDisk row = this.row;
if (!row.KeepInMemory(true))
{
row = (RowAVLDisk)store.Get(this.row, true);
node = (NodeAVLDisk)row.GetNode(this._iId);
}
if (!row.IsInMemory())
{
row.KeepInMemory(false);
throw Error.RuntimeError(0xc9, "NodeAVLDisk");
}
row.SetNodesChanged();
node._iParent = (n == null) ? -1 : n.GetPos();
if ((n != null) && !n.IsInMemory())
{
n = this.FindNode(store, n.GetPos());
}
node.nParent = n;
row.KeepInMemory(false);
return(node);
}
public override bool IsRoot(IPersistentStore store)
{
NodeAVLDisk node = this;
if (!this.row.IsInMemory())
{
node = (NodeAVLDisk)((RowAVLDisk)store.Get(this.row, false)).GetNode(this._iId);
}
return(node._iParent == -1);
}
public override int GetBalance(IPersistentStore store)
{
NodeAVLDisk node = this;
if (!this.row.IsInMemory())
{
node = (NodeAVLDisk)((RowAVLDisk)store.Get(this.row, false)).GetNode(this._iId);
}
return(node.IBalance);
}
private NodeAVLDisk FindNode(IPersistentStore store, int pos)
{
NodeAVLDisk node = null;
RowAVLDisk disk2 = (RowAVLDisk)store.Get(pos, false);
if (disk2 != null)
{
node = (NodeAVLDisk)disk2.GetNode(this._iId);
}
return(node);
}
public override bool IsFromLeft(IPersistentStore store)
{
NodeAVLDisk node = this;
if (!this.row.IsInMemory())
{
node = (NodeAVLDisk)((RowAVLDisk)store.Get(this.row, false)).GetNode(this._iId);
}
if (node._iParent == -1)
{
return(true);
}
if ((node.nParent == null) || !node.nParent.IsInMemory())
{
node.nParent = this.FindNode(store, this._iParent);
}
return(this.GetPos() == ((NodeAVLDisk)node.nParent)._iLeft);
}
public override NodeAVL GetParent(IPersistentStore store)
{
NodeAVLDisk node = this;
if (!this.row.IsInMemory())
{
node = (NodeAVLDisk)((RowAVLDisk)store.Get(this.row, false)).GetNode(this._iId);
}
if (node._iParent == -1)
{
return(null);
}
if ((node.nParent == null) || !node.nParent.IsInMemory())
{
node.nParent = this.FindNode(store, this._iParent);
}
return(node.nParent);
}
public override NodeAVL SetBalance(IPersistentStore store, int b)
{
NodeAVLDisk node = this;
RowAVLDisk row = this.row;
if (!row.KeepInMemory(true))
{
row = (RowAVLDisk)store.Get(this.row, true);
node = (NodeAVLDisk)row.GetNode(this._iId);
}
if (!row.IsInMemory())
{
throw Error.RuntimeError(0xc9, "NodeAVLDisk");
}
row.SetNodesChanged();
node.IBalance = b;
row.KeepInMemory(false);
return(node);
}