Java Optional Orelsethrow Example

https://www.geeksforgeeks.org/optional-orelsethrow...
The orElseThrow method of java util Optional class in Java is used to get the value of this Optional instance if present If there is no value present in this Optional instance then this method throws the exception generated from the specified supplier Syntax public T orElseThrow Supplier exceptionSupplier throws X extends

https://stackoverflow.com/questions/65057285
Public class PostService private final PostRepository postRepository public PostDto Response getPostById long postId Post post postRepository findById postId orElseThrow RuntimeException new

https://www.javaguides.net/2022/11/optional-orelsethrow-method.html
In this tutorial we will demonstrate how to throw an exception if the value is not present in the Optional object using orElseThrow method The orElseThrow method returns the contained value if present otherwise throws an exception to

https://stackoverflow.com/questions/49510605
Both the examples given are safe but it s not better to use an Optional to solely replace an if statement as shown Also note that you re expected to supply the desired exception not to throw it i e orElseThrow throw new CustomException ErrorEnum OBJECT NULL should be

https://www.baeldung.com/java-optional-or-else-vs-or-else-get
The API of Optional typically has two methods that can cause confusion orElse and orElseGet In this quick tutorial we ll look at the difference between these two and explore when to use each one

https://www.baeldung.com/java-optional
The orElseGet method is similar to orElse However instead of taking a value to return if the Optional value is not present it takes a supplier functional interface which is invoked and returns the value of the invocation Test public void whenOrElseGetWorks thenCorrect String nullName null

https://stackoverflow.com/questions/22917138
I d like to use java util Optional orElseThrow with an Exception type that asks for a constructor parameter Something like this orElseThrow MyException new someArgument obviously NOT

https://learnitweb.com/java-tutorial/optional-orelsethrow
Example In the following example there are 2 Optionals one is with a value whereas another one is empty When there is a value orElseThrow returns a value When Optional is empty orElseThrow throws NoSuchElementException public class OptionalExample public static void main String args create a Optional

https://medium.com/javarevisited/optional-class-in...
OrElseThrow is a method in the Java Optional class that is used to throw an exception if the Optional is empty Unlike orElse which returns a default value orElseThrow allows you to throw