The delete() method of QidMap instances removes the specified Qid mapping from this map by qid.
The has() method of QidMap instances returns a boolean indicating whether an element with the specified qid exists in this map or not.
The setByVidOid() method of QidMap instances adds or updates an entry in this map with a specified Qid (given as Vid + Oid) and a value. This method should only be used when no Qid is available, and in those cases it will be slighly faster than first creating a Qid
The Vid for which to set the value
The Oid for which to set the value
The value to set
QidMap represents a Set of mappings from Qid to some other object. It is like JavaScript Map, but specifically for keys of the Qid