public ForeignKey<OneToMany<T>> getOrCreateMapKeyForeignKey()
   {
      Node node = childNode.getOrCreate("map-key-foreign-key");
      ForeignKey<OneToMany<T>> mapKeyForeignKey = new ForeignKeyImpl<OneToMany<T>>(this, "map-key-foreign-key", childNode, node);
      return mapKeyForeignKey;
   }
public ForeignKey < OneToMany < T > > getOrCreateMapKeyForeignKey ( ) { Node node = childNode . getOrCreate ( "map-key-foreign-key" ) ; ForeignKey < OneToMany < T > > mapKeyForeignKey = new ForeignKeyImpl < OneToMany < T > > ( this , "map-key-foreign-key" , childNode , node ) ; return mapKeyForeignKey ; }
If not already created, a new <code>map-key-foreign-key</code> element with the given value will be created.
Otherwise, the existing <code>map-key-foreign-key</code> element will be returned.
@return  a new or existing instance of <code>ForeignKey<OneToMany<T>></code>