code: public final void setWarehouseSite(final WarehouseSite pWarehouseSite) {
      this.warehouseSite = pWarehouseSite;
      if (this.itsId == null) {
        this.itsId = new WarehouseRestId();
      }
      this.itsId.setWarehouseSite(this.warehouseSite);
    }
docs: <p>Setter for warehouseSite.</p>
  @param pWarehouseSite reference