Partial-Bean

Partial beans allow you to implement a generic handler to replace manual implementations of interfaces (or abstract classes).

@PartialBeanBinding is the binding-annotation for creating a custom interface (/abstract class) to generic handler binding.

@PartialBeanBinding

@Retention(RUNTIME)
@Target(TYPE)
public @interface MyPartialBeanBinding {}

@MyPartialBeanBinding
//scope is optional
public interface PartialBean
{
    String getValue();
}

@MyPartialBeanBinding
@Dependent
public class MyPartialBeanHandler implements java.lang.reflect.InvocationHandler
{
    public Object invoke(Object proxy, Method method, Object[] args) throws Throwable
    {
        //generic handler logic
    }
}

Using an abstract class as partial-bean requires javassist as an additional dependency and allows to implement some methods manually.

Attention: Currently CDI-Interceptors can't be used for partial-beans.