public void WriteNode()
{
if (Block == null)
{
Block = new Block(MemoryManager, IndexRelation);
Block.Page = new Pointer(Page.PageNumber, 0);
}
foreach (BPlusTreeNodeValue value in Values)
{
CustomTuple tuple = new CustomTuple(IndexRelation);
tuple.AddValueFor <TKeyType>("Value", (TKeyType)value.Value);
if (IsLeaf && value == Values.First() && LeftSiblingPointer != null)
{
tuple.AddValueFor("LeftPointer", LeftSiblingPointer.Short);
}
else
{
if (value.LeftPointer != null)
{
tuple.AddValueFor("LeftPointer", value.LeftPointer.Short);
}
else
{
tuple.AddValueFor("LeftPointer", (uint)0);
}
}
if (value.Pointer != null)
{
tuple.AddValueFor("ValuePointer", value.Pointer.Short);
}
else
{
tuple.AddValueFor("ValuePointer", (uint)0);
}
if (IsLeaf && value == Values.Last() && RightSiblingPointer != null)
{
tuple.AddValueFor("RightPointer", RightSiblingPointer.Short);
}
else
{
if (value.RightPointer != null)
{
tuple.AddValueFor("RightPointer", value.RightPointer.Short);
}
else
{
tuple.AddValueFor("RightPointer", (uint)0);
}
}
Block.AddRecord(tuple.ToRecord());
}
MemoryManager.Persist(Block);
}
public void Insert(CustomTuple tuple)
{
Block block;
if (TableDefinition.HasClusteredIndex())
{
object key = tuple.GetValueFor <object>(TableDefinition.GetClusteredIndex().Column);
Pointer spot = ClusteredIndex.Find(key, false);
if (spot == null)
{
spot = Program.RelationManager.GetTable(TableDefinition.Id).RootBlock.Page;
}
if (BulkMode && _bulkBlocks.TryGetValue(spot.Short, out Block foundBlockInCache))
{
block = foundBlockInCache;
}
else
{
block = MemoryManager.Read(TableDefinition, spot) as Block;
AddBulkBlock(block);
}
}
else
{
block = RootBlock;
}
(Pointer indexKey, Block targetBlock) = block.AddRecord(tuple.ToRecord());
if (!BulkMode)
{
targetBlock.Write();
}
else
{
AddBulkBlock(targetBlock);
AddBulkBlock(block);
}
foreach (KeyValuePair <Index, IBPlusTreeNode> indexTree in _indexesWithTrees)
{
object value = tuple.GetValueFor <object>(indexTree.Key.Column);
indexTree.Value.AddValue(value, indexKey);
if (!BulkMode)
{
indexTree.Value.WriteTree();
}
}
}