code: public final void setInvItem(final InvItem pInvItem) {
      this.invItem = pInvItem;
      if (this.itsId == null) {
        this.itsId = new WarehouseRestId();
      }
      this.itsId.setInvItem(this.invItem);
    }
docs: <p>Setter for invItem.</p>
  @param pInvItem reference