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    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((addressName == null) ? 0 : addressName.hashCode());
        result = prime * result + ((country == null) ? 0 : country.hashCode());
        result = prime * result + ((detailName == null) ? 0 : detailName.hashCode());
        result = prime * result + ((zipCode == null) ? 0 : zipCode.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        Address other = (Address) obj;

        if (addressName == null) {
            if (other.addressName != null)
                return false;
        } else if (!addressName.equals(other.addressName))
            return false;
        if (country == null) {
            if (other.country != null)
                return false;
        } else if (!country.equals(other.country))
            return false;
        if (detailName == null) {
            if (other.detailName != null)
                return false;
        } else if (!detailName.equals(other.detailName))
            return false;
        if (zipCode == null) {
            if (other.zipCode != null)
                return false;
        } else if (!zipCode.equals(other.zipCode))
            return false;
        return true;
    }

}