code: @Override
      public IPersonAttributes getPerson(final String uid,
                                         final IPersonAttributeDaoFilter filter) {
          if (!this.isEnabled()) {
              return null;
          }
          if (uid == null) {
              throw new IllegalArgumentException("Illegal to invoke getPerson(String) with a null argument.");
          }
          return this.backingPerson;
      }
docs: /* (non-Javadoc)
  @see org.jasig.services.persondir.IPersonAttributeDao#getPerson(java.lang.String)