public EntityConstraints(Entity entity, XmlNode entityNode)
{
this.entity = entity;
if (entity.HasSupertype)
{
primaryId = new PrimaryId(entity, entity.Supertype.Constraints.PrimaryId);
}
else
{
XmlNodeList pidNodes = entity.Model.QueryNode(entityNode, "./{0}:PrimaryId");
if (pidNodes.Count > 1)
{
throw new GlException("Primary identifier is declared more than once. {0}", entity);
}
else if (pidNodes.Count == 1)
{
primaryId = new PrimaryId(entity, pidNodes[0]);
}
else // pidNodes.Count == 0
{
primaryId = null;
foreach (Attribute a in entity.Attributes)
{
if (a.PrimaryId)
{
if (primaryId == null)
{
primaryId = new PrimaryId(entity, a);
}
else
{
primaryId.Attributes.Add(a);
}
}
}
}
}
uniqueIds = new UniqueIdConstraints(entity, entityNode);
foreach (Attribute a in entity.Attributes)
{
if (a.UniqueId)
{
UniqueId uc = new UniqueId(entity, entity.Name);
uc.Attributes.Add(a);
uniqueIds.Add(uc);
}
}
}
public EntityConstraints(Entity entity)
{
uniqueIds = new UniqueIdConstraints(entity);
}