private void BuildDisplay(NeoDatis.Btree.IBTreeNode node, int currentHeight, int
childIndex, object parentId, bool withIds)
{
if (currentHeight > lines.Length - 1)
{
return;
}
// get string buffer of this line
System.Text.StringBuilder line = lines[currentHeight];
if (withIds)
{
line.Append(node.GetId()).Append(":[");
}
else
{
line.Append("[");
}
for (int i = 0; i < node.GetNbKeys(); i++)
{
if (i > 0)
{
line.Append(" , ");
}
NeoDatis.Btree.IKeyAndValue kav = node.GetKeyAndValueAt(i);
line.Append(kav.GetKey());
}
if (withIds)
{
line.Append("]:").Append(node.GetParentId()).Append("/").Append(parentId).Append(
" ");
}
else
{
line.Append("] ");
}
for (int i = 0; i < node.GetNbChildren(); i++)
{
NeoDatis.Btree.IBTreeNode child = node.GetChildAt(i, false);
if (child != null)
{
BuildDisplay(child, currentHeight + 1, i, node.GetId(), withIds);
}
else
{
lines[currentHeight + 1].Append("[Child " + (i + 1) + " null!] ");
}
}
}
public override void SetParent(NeoDatis.Btree.IBTreeNode node)
{
parent = node;
if (parent != null)
{
if (parent.GetId() == null)
{
btree.GetPersister().SaveNode(parent);
}
parentOid = (NeoDatis.Odb.OID)parent.GetId();
}
else
{
parentOid = null;
}
}
public override void SetChildAt(NeoDatis.Btree.IBTreeNode child, int index)
{
if (child != null)
{
if (child.GetId() == null)
{
btree.GetPersister().SaveNode(child);
}
childrenOids[index] = (NeoDatis.Odb.OID)child.GetId();
child.SetParent(this);
}
else
{
childrenOids[index] = null;
}
}
public override void SetParent(NeoDatis.Btree.IBTreeNode node)
{
parent = node;
if (parent != null)
{
if (parent.GetId() == null)
{
btree.GetPersister().SaveNode(parent);
}
parentOid = (NeoDatis.Odb.OID)parent.GetId();
}
else
{
parentOid = null;
}
}
/// <summary>
/// saves the bree node Only puts the current node in an 'modified Node' map
/// to be saved on commit
/// </summary>
public virtual object SaveNode(NeoDatis.Btree.IBTreeNode node)
{
NeoDatis.Odb.OID oid = null;
// Here we only save the node if it does not have id,
// else we just save into the hashmap
if (node.GetId() == NeoDatis.Odb.Impl.Core.Layers.Layer3.Engine.StorageEngineConstant
.NullObjectId)
{
try
{
nbSaveNodes++;
// first get the oid. : -2:it could be any value
oid = engine.GetObjectWriter().GetIdManager().GetNextObjectId(-2);
node.SetId(oid);
oid = engine.Store(oid, node);
if (NeoDatis.Odb.OdbConfiguration.IsDebugEnabled(LogId))
{
NeoDatis.Tool.DLogger.Debug("Saved node id " + oid);
}
// + " : " +
// node.toString());
if (tree != null && node.GetBTree() == null)
{
node.SetBTree(tree);
}
oids.Add(oid, node);
return(oid);
}
catch (System.Exception e)
{
throw new NeoDatis.Odb.ODBRuntimeException(NeoDatis.Btree.BTreeError.InternalError
.AddParameter("While saving node"), e);
}
}
nbSaveNodesInCache++;
oid = (NeoDatis.Odb.OID)node.GetId();
oids.Add(oid, node);
AddModifiedOid(oid);
return(oid);
}
private int IndexOfChild(NeoDatis.Btree.IBTreeNode parent, NeoDatis.Btree.IBTreeNode
child)
{
for (int i = 0; i < parent.GetNbChildren(); i++)
{
if (parent.GetChildAt(i, true).GetId() == child.GetId())
{
return(i);
}
}
throw new System.Exception("parent " + parent + " does not have the specified child : "
+ child);
}
