default-method Questions
2
Solved
I am trying to add logging to my interface default method. For example:
@Slf4j // not allowed
interface MyIFace {
default ThickAndThin doThisAndThat() {
log.error("default doThisAndThat() ca...
Tobietobin asked 17/10, 2020 at 15:30
5
Solved
I am looking for a java equivalent to the C# extension methods feature. Now I have been reading about Java 8's default methods, but as far as I can see, I can only add these to interfaces...
...is...
Solita asked 7/6, 2014 at 10:54
7
Solved
Java 8 introduces default methods to provide the ability to extend interfaces without the need to modify existing implementations.
I wonder if it's possible to explicitly invoke the default implem...
Charry asked 14/11, 2013 at 11:27
7
Solved
I am a big fan of mockito, unfortunately for one of my projects which uses Java 8, it fails on me...
Scenario:
public final class MockTest
{
@Test
public void testDefaultMethodsWithMocks()
{
...
Athwartships asked 27/12, 2014 at 0:15
2
Solved
What is the point of making Functor a super class of Applicative and Monad. Both Applicative and Monad immediately imply the only implementation of Functor that abides by the laws as far as I...
Hipster asked 2/1, 2022 at 7:7
2
I have an interface that inherits from Android's TextWatcher to only implement afterTextChanged method. I have enabled Java 8 support in my project, and added source and target compatibility option...
Bushido asked 9/2, 2020 at 23:20
3
I have an interface with the following default method:
default Integer getCurrentYear() {return DateUtil.getYear();}
I also have a controller that implements this interface, but it does not over...
Bindweed asked 31/7, 2017 at 18:15
2
Solved
Consider the following interface:
public interface I {
default String getProperty() {
return "...";
}
}
and the implementing class which just re-uses the default implementation:
public final...
Spoonerism asked 1/2, 2016 at 12:15
8
Solved
Since Java 8 interfaces could have default methods.
I know how to invoke the method explicitly from the implementing method, i.e.
(see Explicitly calling a default method in Java)
But how do I ex...
Broncobuster asked 14/6, 2016 at 12:42
4
As per the Interface Segregation Principle
clients should not be forced to implement the unwanted methods of an interface
...and so we should define interfaces to have logical separation.
Bu...
Puzzlement asked 23/9, 2017 at 8:25
16
Solved
Java 8 allows for default implementation of methods in interfaces called Default Methods.
I am confused between when would I use that sort of interface default method, instead of an abstract class...
Grunenwald asked 15/11, 2013 at 10:6
5
Solved
Java 8 has included a new feature called Defender methods which allows creation of default method implementation in interface.
Now first of all this is a huge paradigm shift for all condensed progr...
Amortization asked 15/11, 2013 at 9:59
2
Java 8 introduced the concept of default implementation for interfaces? Isn't this violating Open Closed Principle, since based on the example on https://docs.oracle.com/javase/tutorial/java/IandI/...
Yerkovich asked 18/4, 2017 at 0:30
1
Java 8 introduced default methods on interfaces to provide backwards compatibility for implementations of the collections interfaces, to avoid MethodNotFound errors on legacy libraries.
i.e A lib...
Zannini asked 16/12, 2016 at 11:53
1
Solved
I am currently wondering whether a particular use case could be elegantly addressed by using a default interface method inside a JPA repository.
Suppose we have the following entity and supporting ...
Rehearse asked 12/11, 2020 at 9:54
5
Solved
One of the most useful features of Java 8 are the new default methods on interfaces. There are essentially two reasons (there may be others) why they have been introduced:
Providing actual default...
Sexagesimal asked 4/5, 2014 at 6:25
2
Solved
In Java 8, I can easily write:
interface Interface1 {
default void method1() {
synchronized (this) {
// Something
}
}
static void method2() {
synchronized (Interface1.class) {
// Somethi...
Viridissa asked 4/5, 2014 at 7:6
5
Solved
With default methods now added to Java 8, is there any way to create a default constructor?
I've tried:
public interface KadContent<T>
{
public default KadContent()
{
}
...
Getting t...
Eleaseeleatic asked 2/4, 2014 at 12:6
4
Solved
I understand that all fields in an Inteface is implicitly static and final. And this made sense before Java 8.
But with the introduction of default methods, interfaces also have all the capabiliti...
Roentgenology asked 30/6, 2015 at 17:4
1
Solved
Introduction
I have read multiple posts about implementing interfaces and abstract classes here on SO. I have found one in particular that I would like to link here - Link - Interface with default...
Attach asked 3/9, 2018 at 11:38
2
Since multiple inheritance is not allowed in java/kotlin, it's usefull to take advantage of interface default methods. Given example:
abstract class Animal {
fun beAnimal() {
println("I'm anim...
Hassock asked 24/7, 2018 at 8:37
3
Solved
Learning java 8 default methods .
This link like any other resource on internet says
In ‘the strictest sense’, Default methods are a step backwards because
they allow you to ‘pollute’ your int...
Dahna asked 15/11, 2015 at 15:12
1
Solved
Consider below class hierarchy.
class ClassA {
private void hello() {
System.out.println("Hello from A");
}
}
interface Myinterface {
default void hello() {
System.out.println("Hello from In...
Lookthrough asked 2/4, 2018 at 11:57
1
Solved
I understand that if a class implements multiple interfaces containing default methods of same name, then we need to override that method in the child class so as to explicitly define what my metho...
Taynatayra asked 17/12, 2017 at 14:42
3
In my application I run into a problem that when a getter in a class is defaulted in an interface only (Java 8 feature), there is no Java Beans property as a result. I.e. for normal method invocati...
Pamilapammi asked 29/7, 2015 at 14:34
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