private void addChild(TreeElement child, Boolean checkDuplicate)
{
if (!isChildable())
{
throw new SystemException("Can't add children to node that has data value!");
}
if (child.multiplicity == TreeReference.INDEX_UNBOUND)
{
throw new SystemException("Cannot add child with an unbound index!");
}
if (checkDuplicate)
{
TreeElement existingChild = getChild(child.name, child.multiplicity);
if (existingChild != null)
{
throw new SystemException("Attempted to add duplicate child!");
}
}
// try to keep things in order
int i = children.Count;
if (child.getMult() == TreeReference.INDEX_TEMPLATE)
{
TreeElement anchor = getChild(child.getName(), 0);
if (anchor != null)
{
i = children.IndexOf(anchor);
}
}
else
{
TreeElement anchor = getChild(child.getName(),
(child.getMult() == 0 ? TreeReference.INDEX_TEMPLATE : child.getMult() - 1));
if (anchor != null)
{
i = children.IndexOf(anchor) + 1;
}
}
children.Insert(i, child);
child.setParent(this);
child.setRelevant(isRelevant(), true);
child.setEnabled(isEnabled(), true);
}
