public virtual void Insert(Session session, IPersistentStore store, Row row)
{
bool useRowId = !this.isUnique || this.HasNulls(row.RowData);
Monitor.Enter(this._lock);
store.LockStore();
try
{
bool flag2;
NodeAVL eavl2;
Constraint uniqueConstraintForIndex;
Row row2;
RowAVL wavl = (RowAVL)row;
NodeAVL accessor = this.GetAccessor(store);
if (accessor == null)
{
store.SetAccessor(this, wavl.GetNode(this.Position));
store.SetElementCount(this, 1, 1);
return;
}
Label_005C:
row2 = accessor.GetRow(store);
int num = this.CompareRowForInsertOrDelete(session, row, row2, useRowId, 0);
if ((((num == 0) && (session != null)) && (!useRowId && session.database.TxManager.IsMvRows())) && !this.IsEqualReadable(session, store, accessor))
{
useRowId = true;
num = this.CompareRowForInsertOrDelete(session, row, row2, useRowId, this.ColIndex.Length);
}
if (num != 0)
{
flag2 = num < 0;
eavl2 = accessor;
accessor = eavl2.Child(store, flag2);
if (accessor != null)
{
goto Label_005C;
}
}
else
{
uniqueConstraintForIndex = null;
if (this.isConstraint)
{
uniqueConstraintForIndex = ((Table)this.table).GetUniqueConstraintForIndex(this);
}
goto Label_0119;
}
eavl2 = eavl2.Set(store, flag2, wavl.GetNode(this.Position));
this.Balance(store, eavl2, flag2);
store.UpdateElementCount(this, 1, 1);
return;
Label_0119:
if (uniqueConstraintForIndex == null)
{
throw Error.GetError(0x68, this.Name.StatementName);
}
throw uniqueConstraintForIndex.GetException(row.RowData);
}
finally
{
store.UnlockStore();
Monitor.Exit(this._lock);
}
}
public virtual void Delete(IPersistentStore store, NodeAVL x)
{
if (x != null)
{
Monitor.Enter(this._lock);
store.LockStore();
try
{
NodeAVL parent;
if (x.GetLeft(store) == null)
{
parent = x.GetRight(store);
}
else if (x.GetRight(store) == null)
{
parent = x.GetLeft(store);
}
else
{
NodeAVL node = x;
x = x.GetLeft(store);
while (true)
{
NodeAVL right = x.GetRight(store);
if (right == null)
{
break;
}
x = right;
}
parent = x.GetLeft(store);
int balance = x.GetBalance(store);
x = x.SetBalance(store, node.GetBalance(store));
node = node.SetBalance(store, balance);
NodeAVL eavl3 = x.GetParent(store);
NodeAVL n = node.GetParent(store);
if (node.IsRoot(store))
{
store.SetAccessor(this, x);
}
x = x.SetParent(store, n);
if (n != null)
{
if (!n.IsRight(node))
{
n.SetLeft(store, x);
}
else
{
n.SetRight(store, x);
}
}
if (node.Equals(eavl3))
{
node = node.SetParent(store, x);
if (node.IsLeft(x))
{
x = x.SetLeft(store, node);
NodeAVL right = node.GetRight(store);
x = x.SetRight(store, right);
}
else
{
x = x.SetRight(store, node);
NodeAVL left = node.GetLeft(store);
x = x.SetLeft(store, left);
}
}
else
{
node = node.SetParent(store, eavl3);
eavl3 = eavl3.SetRight(store, node);
NodeAVL left = node.GetLeft(store);
NodeAVL right = node.GetRight(store);
x = x.SetLeft(store, left);
x = x.SetRight(store, right);
}
x.GetRight(store).SetParent(store, x);
x.GetLeft(store).SetParent(store, x);
node = node.SetLeft(store, parent);
if (parent != null)
{
parent = parent.SetParent(store, node);
}
x = node.SetRight(store, null);
}
bool isleft = x.IsFromLeft(store);
x.Replace(store, this, parent);
parent = x.GetParent(store);
x.Delete();
while (parent != null)
{
NodeAVL eavl10;
int balance;
NodeAVL eavl12;
x = parent;
int b = isleft ? 1 : -1;
switch ((x.GetBalance(store) * b))
{
case -1:
x = x.SetBalance(store, 0);
goto Label_0359;
case 0:
x = x.SetBalance(store, b);
return;
case 1:
{
eavl10 = x.Child(store, !isleft);
balance = eavl10.GetBalance(store);
if ((balance * b) < 0)
{
goto Label_02B7;
}
x.Replace(store, this, eavl10);
NodeAVL n = eavl10.Child(store, isleft);
x = x.Set(store, !isleft, n);
eavl10 = eavl10.Set(store, isleft, x);
if (balance != 0)
{
break;
}
x = x.SetBalance(store, b);
eavl10 = eavl10.SetBalance(store, -b);
return;
}
default:
goto Label_0359;
}
x = x.SetBalance(store, 0);
x = eavl10.SetBalance(store, 0);
goto Label_0359;
Label_02B7:
eavl12 = eavl10.Child(store, isleft);
x.Replace(store, this, eavl12);
balance = eavl12.GetBalance(store);
eavl10 = eavl10.Set(store, isleft, eavl12.Child(store, !isleft));
eavl12 = eavl12.Set(store, !isleft, eavl10);
x = x.Set(store, !isleft, eavl12.Child(store, isleft));
eavl12 = eavl12.Set(store, isleft, x);
x = x.SetBalance(store, (balance == b) ? -b : 0);
eavl10 = eavl10.SetBalance(store, (balance == -b) ? b : 0);
x = eavl12.SetBalance(store, 0);
Label_0359:
isleft = x.IsFromLeft(store);
parent = x.GetParent(store);
}
}
finally
{
store.UnlockStore();
Monitor.Exit(this._lock);
}
}
}
