ReflectionExample

Simple Built-In Example

@Test public void autoConvertToAppropriateTypes() throws Exception {
    Person person = Convert("id=1001&title=Mr&firstName=Forrest&lastNames=Winston%2CGroom%2CGump&male=true").to(Person.class);
    assertThat(person.getTitle(), is("Mr"));
    assertThat(person.getFirstName(), is("Forrest"));
    List<String> lastNames = person.getLastNames();
    assertThat(lastNames.get(0), is("Winston"));
    assertThat(lastNames.get(1), is("Groom"));
    assertThat(lastNames.get(2), is("Gump"));
    assertThat(person.getId(), is(1001));
    assertThat(person.isMale(), is(true));
}

Hand-Rolled Example

@Test public void autoConvertToAppropriateTypes() throws Exception {
    Map<String, String> map = Convert("id=1001&title=Mr&firstName=Forrest&lastNames=Winston,Groom,Gump&male=true").to(Map.class);
    Person person = Person.class.newInstance();
    Field[] personFields = person.getClass().getDeclaredFields();
    for (Field personField : personFields) {
        personField.setAccessible(true);
        personField.set(person, Convert(map.get(personField.getName())).to(personField.getType()));
    }
    assertThat(person.getTitle(), is("Mr"));
    assertThat(person.getFirstName(), is("Forrest"));
    List<String> lastNames = person.getLastNames();
    assertThat(lastNames.get(0), is("Winston"));
    assertThat(lastNames.get(1), is("Groom"));
    assertThat(lastNames.get(2), is("Gump"));
    assertThat(person.getId(), is(1001));
    assertThat(person.isMale(), is(true));
}


public class Person {
private Integer id;
private String title;
private String firstName;
private List<String> lastNames;
private Boolean male;

public Person() {}

public Person(int id, String title, String firstName, List<String> lastNames, boolean male) {
    this.id = id;
    this.title = title;
    this.firstName = firstName;
    this.lastNames = lastNames;
    this.male = male;
}

public String getTitle() { return title; }
public Boolean isMale() { return male; }
public String getFirstName() { return firstName; }
public List<String> getLastNames() { return lastNames; }
public Integer getId() { return id; }
}