how to use Apache Commons HashCodeBuilder, 
	and EqualsBuilder
	
(requires the following jar:
	commons-lang-2.6.jar)
	
@Override
public int hashCode(){
	return new HashCodeBuilder()
	.append(getId())
	.append(address)
	.append(contactDetails)
	.append(fName)
	.append(lName)
	.append(profile)
	.toHashCode();
}	


@Override
public boolean equals(final Object obj) {
	if(obj instanceof Artist) {
		final Artist other = (Artist) obj;
		return new EqualsBuilder()
		.append(getId(), other.getId())
		.append(address, other.address)
		.append(contactDetails, other.contactDetails)
		.append(fName, other.fName)
		.append(lName, other.lName)
		.append(profile, other.profile)
		.isEquals();
	} else {
		return false;
	}
}