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Groovy 2 Cookbook
There are several strategies to clone an object in Java. To clone an object means the ability to create an object with the same state as the original object.
A widely used strategy to clone an object is for the class to be cloned to implement the Cloneable interface, and implement a method, clone, in which the cloning code is executed. Naturally, Groovy supports this semantic but makes it even easier to implement with the @AutoClone annotation, which will be demonstrated in this recipe.
The following steps will show the power of the @AutoClone annotation:
Let's define an object Vehicle and annotate the class with the @AutoClone annotation:
import groovy.transform.AutoClone
@AutoClone
class Vehicle {
String brand
String type
Long wheelsNumber
}In the same script where the Vehicle object is defined, add the following code:
def v1 = new Vehicle() v1.brand = 'Ferrari' v1.type = 'Testarossa' v1.wheelsNumber = 4 def v2 = v1.clone...
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