I am trying to extend the following class with constructor (from the Ektorp library):
public class CouchDbRepositorySupport<T extends CouchDbDocument> implements GenericRepository<T> {
...
protected CouchDbRepositorySupport(Class<T> type, CouchDbConnector db) {
...
}
Here's my implementation:
public class OrderRepository extends CouchDbRepositorySupport<Order<MenuItem>> {
public OrderRepository(CouchDbConnector db) {
super(Order<MenuItem>.class, db);
The problem is with the Order<MenuItem>.class
part. The Java compiler tells me:
Syntax error on token ">", void expected after this
I tried with (Order<MenuItem>).class
, Order.class
and new Order<MenuItem>().getClass()
with no better luck.
What can I do to retrieve the .class attribute of a generic class?
If you change your type to publish the inner type, you can get it this way:
public class CouchDbRepositorySupport<C, T extends CouchDbRepositorySupport<C>> implements GenericRepository<T> {
...
protected CouchDbRepositorySupport(Class<C> type, CouchDbConnector db) {
...
}
public class OrderRepository extends CouchDbRepositorySupport<MenuItem, Order<MenuItem>> {
public OrderRepository(CouchDbConnector db) {
super(MenuItem.class, db);
You have a few choices about how you declare the parent class; this is just one example.
Disclaimer: I did this by hand without an IDE, so there could be a few minor syntax issues with it, but the concept should work.