JarCastingEmaze Maple
Emaze Maple is a generic Java object mapper library using reflection.
Basic usage example
public class BasicUsageExample {
public static class PersonDAO {
public PersonTO getPerson() {
return new PersonTO("John", "Doe", 45);
}
public List<PersonTO> getPersons() {
return Arrays.asList(
new PersonTO("John", "Doe", 45),
new PersonTO("Jane", "Doe", 35));
}
public void save(PersonTO person) {
/* persist person to database */
}
}
public static class PersonBO {
private String firstName;
private String lastName;
private long age;
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public void setAge(long age) {
this.age = age;
}
}
public static class PersonTO {
private String firstName;
private String lastName;
private long age;
public PersonTO(String firstName, String lastName, long age) {
this.firstName = firstName;
this.lastName = lastName;
this.age = age;
}
}
public final static void main(String args[]) {
final Mapper mapper = ResolvingMapper.Builder.defaults().build();
final PersonDAO personDAO = new PersonDAO();
final PersonTO personTO = personDAO.getPerson();
final PersonBO personBO = mapper.map(personTO, PersonBO.class);
Assert.assertEquals(personTO.firstName, personBO.firstName);
Assert.assertEquals(personTO.lastName, personBO.lastName);
Assert.assertEquals(personTO.age, personBO.age);
/* mapping arrays of objects too... */
final List<PersonTO> personsTO = personDAO.getPersons();
final List<PersonBO> personsBO = mapper.map(personsTO, PersonBO.class);
Assert.assertEquals(personsTO.get(0).firstName, personsBO.get(0).firstName);
Assert.assertEquals(personsTO.get(0).lastName, personsBO.get(0).lastName);
Assert.assertEquals(personsTO.get(0).age, personsBO.get(0).age);
Assert.assertEquals(personsTO.get(1).firstName, personsBO.get(1).firstName);
Assert.assertEquals(personsTO.get(1).lastName, personsBO.get(1).lastName);
Assert.assertEquals(personsTO.get(1).age, personsBO.get(1).age);
}
}
Documentation
Questions related to the usage of Emaze Maple should be posted to the [user mailing list][ml].
Where can I get the latest release?
You can pull it from the central Maven repositories:
<dependency>
<groupId>net.emaze</groupId>
<artifactId>emaze-maple</artifactId>
<version>2.3</version>
</dependency>
Contributing
We accept PRs via github. The [developer mailing list][ml] is the main channel of communication for contributors. There are some guidelines which will make applying PRs easier for us:
- Respect the code style.
- Create minimal diffs - disable on save actions like reformat source code or organize imports. If you feel the source code should be reformatted create a separate PR for this change.
- Provide JUnit tests for your changes and make sure your changes don't break any existing tests by running
mvn clean test.
