@Override
	public boolean equals(Object obj) {
		if (this == obj)
			return true;
		if (obj == null)
			return false;
		if (getClass() != obj.getClass())
			return false;
		PreferenceTags other = (PreferenceTags) obj;
		if (tag == null) {
			if (other.tag != null)
				return false;
		} else if (!tag.equals(other.tag))
			return false;
		if (tagId != other.tagId)
			return false;
		if (uId != other.uId)
			return false;
		return true;
	}