@Override
    public boolean equals(Object o) {

        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Cost cost = (Cost) o;

        if (!this.getId().equals(cost.getId())) return  false;
        if (!this.getService().equals(cost.getService())) return false;
        if (!this.getProductCost().equals(cost.getProductCost())) return false;
        if (!this.getMaterialContentTest().equals(cost.getMaterialContentTest())) return false;
        if (!this.getCelerity().equals(cost.getCelerity())) return false;
        if (!this.getOrderNumber().equals(cost.getOrderNumber())) return false;

        return true;


    }