I have a Micronaut declarative HTTP client written using @client annotation. I want to call this while starting micronaut app before creating the ApplicationContext itslef. HttpClient : SampleHttpClient.java Application.java (Main class) Answer I want to call this while starting micronaut app before creating …
Tag: inversion-of-control
Two implementations of one interface in Jersey/HK2, reuse first in other
I have an interface with a naive implementation, say I want to make a cache that caches the doIt, so I wrote a wrapper : Then, I add both implementations to my Binder: I get errors complaining about: org.glassfish.hk2.api.UnsatisfiedDependencyException: There was no object available for injection at SystemInj…
How does java IoC framework ensure thread safety?
Recently I have read a great tutorial of Java Memory Model. It says JVM only guarantees the visibility of final field if no synchronization used. Then it occurs to me that when we use some IoC frameworks, we usually use setter injection/field injection which are not protected by final semantics. For example, …
What does decoupling two classes at the interface level mean?
Lets say we have class A in package A and class B in package B . If object of class A has reference to class B, then the two classes are said to have coupling between them. To address the coupling, …
Spring: Using builder pattern to create a bean
I use ektorp to connect to CouchDB. The way to build an ektorp HttpClient instance is to use builder pattern: I am relatively new to Spring. Please advice me on how I can configure an HttpClient in my context to create it via the Builder. One way to do this is with @Configuration. Are any other options? Answe…