Using aspect I kept the annotation @In in Entities, may inject any seam
component.
The Aspect intercepting the criation of the Entity and search the annotation
@In. After it inject by Component.getInstance("componentName").
Below that the code written in AspectJ:
Using aspect I kept the annotation @In in Entities, may inject any seam
component.
The Aspect intercepting the criation of the Entity and search the annotation
@In. After it inject by Component.getInstance("componentName").
Below that the code written in AspectJ:
| public aspect InjectEntity{
|
| //intercept the package of Entities
| pointcut inject() : initialization(public
br.com.siq.pesquisa.entidade.*.new (..));
|
| after():inject(){
| Object obj = thisJoinPoint.getThis();
| String valueOfContextVariable = null;
| Boolean createContextVariable=false;
|
| for(Field field:obj.getClass().getDeclaredFields()){
| if(field.isAnnotationPresent(In.class)){
|
| In in = field.getAnnotation(In.class);
|
| if(in.value().equals("")){
| valueOfContextVariable =
field.getName();
| }else{
| valueOfContextVariable = in.value();
| }
|
| if(in.create())
| createContextVariable = true;
|
| field.setAccessible(true);
|
| try {
| field.set(obj,
Component.getInstance(valueOfContextVariable, createContextVariable));
| } catch (IllegalStateException e) {
| log.error("Don´t have context active");
| }catch(Exception e){
| log.error(e);
| }
| }
| }
| }
|
| }
|
|
The code of Entity now can be written with:
| @Entity
| public class User{
|
| @In
| private UserRepository userRepository;
|
| //more code
| (...)
|
| }
|
... the Entity user isn't necessarily a Seam component, but works ;)
-----------------------------
[]´s
Alessandro Lazarotti
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