I've solved the problem - though, I'm not quite happy with it. Indeed there seems to be a requirement for a custom composite user type to have a non-<set> collection of values within a joined-subclass. So the only way is writing a usertype for all values. I see this is better style to do with all user types anyways. But for quick and dirty testing i prefer to do the mapping with <composite-element>.
Anyways, here's the complete code for a Phone(Number) value and the related usertype as well as mapping examples. Hope someone can use it.
import java.io.Serializable;
/**
* Value that identifies and typifies a phone number.
* <p>
* A phone number can be a phone, fax, cellphone, or data line and consists of
* the following parts:
* <p>
* <strong>Type of phone</strong><br />
* Type of data per {@link PhoneType}.
* <p>
* <strong>Country Code</strong><br />
* One to three digit international calling code country designation as
* specified by ITU (International Telecommunication Union) E.164.
* See http://www.itu.int/itudoc/itu-t/ob-lists/icc/e164_763.html.
* <p>
* <strong>Area Code</strong><br />
* For US numbers, this is the 3-digit NANP (North American Numbering Plan)
* initial portion of a domestic telephone number, corresponding to a region,
* city or part of a city. For a foreign address this can be a city code.
* <p>
* <strong>Number</strong><br />
* The remainder of a foreign or domestic number. It will be 7 digits for US
* numbers, variable for foreign.
* <p>
* <strong>Extension</strong><br />
* An optional, numeric extension number. In calling, this is technically not
* a part of the number itself, but an access code used to further route a
* call once a connection has been made. This field can also be used to store
* Dataline specific comments (i.e. 069-121212 Leonardo).
* <p>
* Example: 049 06532 12458 10
* <p>
* Please note that no replacements are done with the stored version. So if you
* need a special formatting use the displayName() methods in this class.
*
* @author Andreas Aderhold, All rights reserved
* @version $Id$
*/
public final class Phone implements Serializable/*, Comparable*/ {
// ~ Fields ----------------------------------------------------------------
private PhoneType type;
/*One to three digit international calling code country designation as specified by ITU (International Telecommunication Union) E.164. See http://www.itu.int/itudoc/itu-t/ob-lists/icc/e164_763.html.*/
private String countrycode;
private String areacode;
private String number;
private String extension;
// ~ Constructors ----------------------------------------------------------
/** Default constructor, do not use */
private Phone() {}
private Phone(PhoneType type, String countrycode, String areacode, String number, String extension) {
this.type = type;
this.countrycode = countrycode;
this.areacode = areacode;
this.number = number;
this.extension = extension;
}
// ~ Factories -------------------------------------------------------------
public static Phone newPhone(PhoneType type, String countrycode, String areacode, String number, String extension) {
return new Phone(type, countrycode, areacode, number, extension);
}
public static Phone newPhone(String countrycode, String areacode, String number, String extension) {
return new Phone(PhoneType.Phone, countrycode, areacode, number, extension);
}
public static Phone newFax(String countrycode, String areacode, String number, String extension) {
return new Phone(PhoneType.Fax, countrycode, areacode, number, extension);
}
public static Phone newCellphone(String countrycode, String areacode, String number, String extension) {
return new Phone(PhoneType.Cellphone, countrycode, areacode, number, extension);
}
// ~ Business methods ------------------------------------------------------
public PhoneType type() {
return this.type;
}
public String countrycode() {
return this.countrycode;
}
public String areacode() {
return this.areacode;
}
public String number() {
return this.number;
}
public String extension() {
return this.extension;
}
public boolean isFax() {
return type.compareTo(PhoneType.Fax) == 0;
}
public boolean isCellphone() {
return type.compareTo(PhoneType.Cellphone) == 0;
}
public boolean isPhone() {
return type.compareTo(PhoneType.Phone) == 0;
}
public boolean isData() {
return type.compareTo(PhoneType.Data) == 0;
}
public String displayName() {
return type.getPhoneType() + ":" + countrycode + '-' + areacode + '-' + number + ' ' + extension;
}
// ~ System methods --------------------------------------------------------
public String toString() {
return displayName();
}
public boolean equals(Object o) {
if (this == o) return true;
if (!(o instanceof Phone)) return false;
final Phone p = (Phone) o;
if (type.compareTo(p.type) != 0) return false;
if (!countrycode.equals(p.countrycode)) return false;
if (!areacode.equals(p.areacode)) return false;
if (!number.equals(p.number)) return false;
return extension.equals(p.extension);
}
public int hashCode() {
int result;
result = type.hashCode();
result = 29 * result + ((areacode != null) ? areacode.hashCode() : 0);
result = 29 * result + ((countrycode != null) ? countrycode.hashCode() : 0);
result = 29 * result + ((number != null) ? number.hashCode() : 0);
result = 29 * result + ((extension != null) ? extension.hashCode() : 0);
return result;
}
// ~ Private Methods -------------------------------------------------------
}
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