code: public ObjectCacheDef setObjectCache(String name)
      {
          if ((_objectCache == null) || !_objectCache.getName().equals(name))
          {    
              _objectCache = new ObjectCacheDef(name);
      
              _objectCache.setOwner(this);
          }
          return _objectCache;
      }
docs: Sets an object cache definition to an object cache of the given name (if necessary), and returns it.
  
  @param name The name of the object cache class
  @return The object cache definition