Mapping with ObjectMapper

Converting from one object structure to another is often time consuming, without adding real value.

I recently came across the Modelmapper library, which reduces this task to a minimum.

Add the dependency below to either your gradle og pom file.

Gradle

compile "org.modelmapper:modelmapper:2.3.0"

Maven

<dependency>
  <groupId>org.modelmapper</groupId>
  <artifactId>modelmapper</artifactId>
  <version>2.3.0</version>
</dependency>

ModelMapper configuration 

There is a wide range of configuration options, which can be found here

ModelMapper

Internal basket object

public class Basket {
  private UUID id;
  private String productCode;
  private String customerName;
  private String orderContactEmail;
  private String orderContactPhoneNo;
  // Assume getters and setters
}

External Basket object

public class BasketDTO {
  private String id;
  private String productNo;
  private String customerName;
  private String orderContactEmail;
  private String orderContactPhoneNo;
  // Assume getters and setters
}

Assuming the basket object should be mapped to a BasketDTO, performing the mapping is simple:

final ModelMapper modelMapper = new ModelMapper();
final BasketDTO dto = modelMapper.map(basket, BasketDTO.class);