Questions tagged [java-annotations]
211 questions
0
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0 answers
Inheritance in annotations
I'm trying to make a method that returns fields that are annotated with a specific annotation.
I have one annotation (TestAnn) that I want to be a superclass for the other two (AutoSave and AutoLoad).
TestAnn:
public @interface TestAnn {
…
Rubix327
- 45
- 5
0
votes
1 answer
Why is Spring's @Component Annotation RUNTIME?
I am wondering, why Spring's implementation of the @Component Annotation has RetentionPolicy.RUNTIME.
Here's the official implementation from github
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Indexed
public @interface…
wanshurst
- 13
- 1
0
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1 answer
why annotating with @Configuration and @EnableWebSecurity at the same time
I'm reading Spring in Action 5th Edition. in part 4 (securing spring), he wanted to overide the security autoconfigured by spring boot... so he created a config class called it SecurityConfig as follow:
@Configuration
@EnableWebSecurity
public class…
mouad36
- 306
- 2
- 10
0
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1 answer
Getting Spring Boot to load annotated resources defined inside runtime dependencies
I am developing a bunch of Java/Sprint Boot webservices that will all have several identical (ideally, reusable) Spring-based resources:
many annotation-based Spring Security configurations
several @Services and @Components
many annotation-based…
hotmeatballsoup
- 385
- 6
- 58
- 136
0
votes
1 answer
How to scale a PDAnnotation?
I have a pdf that has been passed to me with a signature (annotation) and I have to scale the pdf, but when I scale the pdf the annotation does not scale, and it comes out out out of shape. Any suggestions? I'll show you the code of the method and…
PereZix
- 41
- 4
0
votes
2 answers
Bean-Validate minimum and maximum value for LocalDate
I would like to provide bean-validation for variable which is of the LocalDate type.
The minimum acceptable value should be LocalDate.of(2020,1,1).
The maximum acceptable value should be LocalDate.of(5874897,1,1).
Michał
- 1
- 1
0
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0 answers
How to make custom annotation throw an error instead of default message
I am working on an api that allows the user to fetch data by id, where the id's data type is a UUID. I would like to use an annotation in the controller method to check whether the user passed a valid UUID, but @Valid doesn't work on UUID's, so I…
Riggster
- 107
- 3
- 15
0
votes
2 answers
Making a method level annotation that tells the method to save all logs to database
My problem is that a lot of methods in my project now require to have their logs stored, AOP isn't very viable since there isn't an appropriate point to cut, so I'm thinking about making a custom annotation and putting it wherever it's…
Teddy Tsai
- 414
- 1
- 13
0
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0 answers
Java custom annotation to make target class extend another class
In a spring boot project I'm working on, we have a lot of classes that extend Consumer, Processor, or Producer custom abstract classes. All these concrete extension classes are also annotated with @Component, @ConditionalOnProperty and usually…
gz90
- 41
- 7
0
votes
1 answer
Check if Annotation is inherited
I have an annotation and three classes like this:
@Inherited
@Target(ElementType.TYPE)
@Retention(RetentionPolicy.RUNTIME)
public @interface MyAnnotation {}
@MyAnnotation
public class MySuperClass {}
public class MySubClassA extends MySuperClass…
maddingl
- 197
- 4
- 20
0
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0 answers
How to Create annotations which can declare variable using class name from its usage
following
public class Testclass {
private static final LogExtension log = new LogExtension(Testclass.class);
}
should work with just:
@LogExtension
public class Testclass{}
similar to @Slf4j with its annotation it creates an object like in…
Optimus Prime
- 69
- 2
- 13
0
votes
0 answers
Inherit property from parent class and add attribute to the inherited annotation
I have a derived class MyBusinessBody which extends a parent class BusinessBody.
One field in BusinessBody looks like:
public class BusinessBody{
@OneToOne(fetch = FetchType.LAZY)
private Trade trade;
//setter and getter
...
}
Now, I want…
J.E.Y
- 1,173
- 2
- 15
- 37
0
votes
1 answer
How to get annotations of JUnit test suite class?
I have such an example of test suite class to run many test classes at once in JUnit 4.13.
@RunWith(Suite.class)
@SuiteClasses({
FirstTest.class,
SecondTest.class
})
@TestSuiteAnnotation
public class TestSuite {
}
These are my test…
kosteklvp
- 147
- 2
- 16
0
votes
2 answers
if functional interface came in java version 8 then how @FunctionalInterface annotation working in java version 7 or less
@FunctionalInterface interface inter1 { public void show(); }
this program compiles and runs fine when I used 1.6 version to compile
Kuldeep Shrivastava
- 21
- 1
- 2
0
votes
0 answers
How can we consolidate the working of a java class into a custom annotation?
I am very new to Java and to annotations. So far, I have been using a .jar file to be imported for my java classes to work. For example, there is a source code for "Controller". I make java objects that inherits the source class Controller and its…
