org.glassfish.hk2
Interface Provider<T>

public interface Provider<T>

Provides an instance of T either by creating a new one at each request or returning an existing one.

Author:

Jerome Dochez

Method Summary

T	get() The system calls this method to obtain a reference to the component.

Method Detail

get

T get()
      throws ComponentException

The system calls this method to obtain a reference to the component.

Returns:

null is a valid return value. This is useful when a factory primarily does a look-up and it fails to find the specified component, yet you don't want that by itself to be an error. If the injection wants a non-null value (i.e., @Inject(optional=false)).

Throws:

ComponentException - If the factory failed to get/create an instance and would like to propagate the error to the caller.