public string ToChainString()
{
ChainImpl root = (ChainImpl)Root;
string output = "Chain=" + root.Name;
for (ChainImpl current = root.next; !current.isRoot; current = current.next)
{
output += "," + current.Name;
}
return(output);
}
public Chain GetAt(int index)
{
int i = 0;
ChainImpl link = (ChainImpl)Root;
do
{
if (i == index)
{
return(link);
}
i++;
link = link.next;
}while (!link.isRoot);
throw new ApplicationException("Not found at " + index);
}
public Chain InsertAfter(Chain chain)
{
if (trace)
{
log.Trace(GetType().Name + " InsertAfter() " + chain.ToChainString() + " after " + this);
}
ChainImpl root = (ChainImpl)chain.Root;
ChainImpl tail = (ChainImpl)chain.Tail;
root.isRoot = false;
root.previous = this;
tail.next = next;
next.previous = tail;
next = root;
return(root);
}
public Chain InsertBefore(Chain chain)
{
if (trace)
{
log.Trace(GetType().Name + " InsertBefore() " + chain.ToChainString() + " before " + this);
}
ChainImpl root = (ChainImpl)chain.Root;
ChainImpl tail = (ChainImpl)chain.Tail;
root.isRoot = isRoot;
isRoot = false;
tail.next = this;
root.previous = previous;
previous.next = root;
previous = tail;
return(root);
}
public Chain Replace(Chain chain)
{
if (trace)
{
log.Trace(GetType().Name + " Replace() " + this + " with " + chain.ToChainString());
}
ChainImpl root = (ChainImpl)chain.Root;
ChainImpl tail = (ChainImpl)chain.Tail;
root.isRoot = isRoot;
isRoot = false;
tail.next = next;
root.previous = previous;
previous.next = root;
next.previous = tail;
return(root);
}
public ChainImpl(ModelInterface formula)
{
if (trace)
{
log.Trace("new ");
}
if (trace)
{
log.Indent();
}
LinkFormula(formula);
previous = this;
next = this;
if (trace)
{
log.Outdent();
}
}
private ChainImpl()
{
previous = this;
next = this;
}
