There’s More to Life Than Strings: Working with Data Types - Stripes...and Java Web Development is Fun Again - page 107

Browser

request
contact=5

String
"5"

TypeConverter<Contact>

Contact

setContact(Contact)

ActionBean

Figure 5.5: Using a type converter to load a contact

Here is an example with the PhoneNumber class:

package stripesbook.model;
public class PhoneNumber {
private int areaCode;
private int prefix;
private int suffix;

private static final Pattern pattern = Pattern.compile(
"\\(?(\\d{3})\\)?[-. ]?(\\d{3})[-. ]?(\\d{4})");

public PhoneNumber() {
}
public PhoneNumber( int areaCode, int prefix, int suffix) {
this .areaCode = areaCode;
this .prefix = prefix;
this .suffix = suffix;

}
// Stripes will use this for String -> PhoneNumber type conversion
public PhoneNumber(String input) {
if (input != null ) {
Matcher matcher = pattern.matcher(input);