I'm trying to achieve something that might be impossible, but before concluding that, I'd like to ask you, CDI gurus!
I have the following class:
public class Foo<T> {
public TypedQuery<T> getQuery(){
}
}
As you can Imagine, inside my getQuery method, I'd have to use "T.class" to make it TypedQuery. which is impossible due java generics type erasure.
so I'd have to build a private field to hold the t.class for me.
public class Foo<T> {
private Class<T> klass;
public TypedQuery<T> getQuery(){
}
public void setKlass(Class<T> klass){
this.klass = klass;
}
}
The problem is that forcing this 'setKlass' feels very ugly to the api, and it's not very error prone, since one could easily forget to set this configuration.
So I had an Idea: force the setKlass inside the constructor:
public class Foo<T> {
private Class<T> klass;
public Foo(Class<T> klass){
this.klass = klass;
}
public TypedQuery<T> getQuery(){
}
}
Unfortunatelly, this breaks cdi, since it cannot inject it anymore. At least AFAIK.
So, is there a way out of this? maybe using a secret solder feature?