logo
down
shadow

Modify a method annotation parameter at runtime


Modify a method annotation parameter at runtime

By : Sean F.
Date : November 17 2020, 11:58 AM
This might help you I wrote a class AnnotationUtil to resolve the seris requirements.
It can add/remove/change annotation value on class/field/method instance.
code :


Share : facebook icon twitter icon
Objective-C modify parameter to method at runtime

Objective-C modify parameter to method at runtime


By : Marc-André Langlais
Date : March 29 2020, 07:55 AM
I wish this helpful for you You can't modify your source code or make up variable references at runtime. Objective-C isn't that dynamic.
If the values of kPlacement0 through kPlacementMax are sequential, you may be able to use a for loop to step through them directly:
code :
for (MyPlacement placement = kPlacement0; placement += kPlacementIncrement; placement <= kPlacementMax) {
    UIViewSubclass *instanceOfUIViewSubclass = [[UIViewSubclass alloc] initWithValue:([value integerValue])
                                                                        andPlacement:placement];
    //Do something with instanceOfUIViewSubclass.
    [instanceOfUIViewSubclass release];
}
enum { numPlacements = <#Insert the number of placement constants here#> };
MyPlacement placements[numPlacements] = {
    kPlacement0,
    kPlacement1,
    kPlacement2,
    ⋮
}

for (unsigned i = 0U; i < numPlacements; ++i) {
    UIViewSubclass *instanceOfUIViewSubclass = [[UIViewSubclass alloc] initWithValue:([value integerValue])
                                                                        andPlacement:placements[i]];
    //Do something with instanceOfUIViewSubclass.
    [instanceOfUIViewSubclass release];
}
Modify a class definition's annotation string parameter at runtime

Modify a class definition's annotation string parameter at runtime


By : Alysson N
Date : March 29 2020, 07:55 AM
will be helpful for those in need This code does more or less what you ask for - it is a simple proof of concept:
a proper implementation needs to also deal with the declaredAnnotations if the implementation of annotations in Class.java changes, the code will break (i.e. it can break at any time in the future) I have no idea if there are side effects...
code :
public static void main(String[] args) throws Exception {
    final Something oldAnnotation = (Something) Foobar.class.getAnnotations()[0];
    System.out.println("oldAnnotation = " + oldAnnotation.someProperty());
    Annotation newAnnotation = new Something() {

        @Override
        public String someProperty() {
            return "another value";
        }

        @Override
        public Class<? extends Annotation> annotationType() {
            return oldAnnotation.annotationType();
        }
    };
    Field field = Class.class.getDeclaredField("annotations");
    field.setAccessible(true);
    Map<Class<? extends Annotation>, Annotation> annotations = (Map<Class<? extends Annotation>, Annotation>) field.get(Foobar.class);
    annotations.put(Something.class, newAnnotation);

    Something modifiedAnnotation = (Something) Foobar.class.getAnnotations()[0];
    System.out.println("modifiedAnnotation = " + modifiedAnnotation.someProperty());
}

@Something(someProperty = "some value")
public static class Foobar {
}

@Retention(RetentionPolicy.RUNTIME)
@interface Something {

    String someProperty();
}
Jackson - Modify an attribute at runtime without annotation

Jackson - Modify an attribute at runtime without annotation


By : Walter Lam
Date : March 29 2020, 07:55 AM
wish of those help You can use PropertyNamingStrategy class to override class property. See simple implementation of this class:
code :
class ReplaceNamingStrategy extends PropertyNamingStrategy {

    private static final long serialVersionUID = 1L;

    private Map<String, String> replaceMap;

    public ReplaceNamingStrategy(Map<String, String> replaceMap) {
        this.replaceMap = replaceMap;
    }

    @Override
    public String nameForGetterMethod(MapperConfig<?> config, AnnotatedMethod method, String defaultName) {
        if (replaceMap.containsKey(defaultName)) {
            return replaceMap.get(defaultName);
        }

        return super.nameForGetterMethod(config, method, defaultName);
    }
}
import java.io.IOException;
import java.util.Collections;
import java.util.Map;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.PropertyNamingStrategy;
import com.fasterxml.jackson.databind.cfg.MapperConfig;
import com.fasterxml.jackson.databind.introspect.AnnotatedMethod;

public class JacksonProgram {

    public static void main(String[] args) throws IOException {
        Msg msg = new Msg();
        msg.setCode(42);
        msg.setData("Are you suggesting coconuts migrate?");

        System.out.println(convert(msg, "test"));
        System.out.println(convert(msg, "toto"));
        System.out.println(convert(msg, "groovy"));
    }

    public static String convert(Msg msg, String name) throws IOException {
        ObjectMapper mapper = new ObjectMapper();
        mapper.setPropertyNamingStrategy(new ReplaceNamingStrategy(Collections.singletonMap("data", name)));
        return mapper.writeValueAsString(msg);
    }
}
{"code":42,"test":"Are you suggesting coconuts migrate?"}
{"code":42,"toto":"Are you suggesting coconuts migrate?"}
{"code":42,"groovy":"Are you suggesting coconuts migrate?"}
how to modify an attribute of an annotation at runtime

how to modify an attribute of an annotation at runtime


By : hannah
Date : March 29 2020, 07:55 AM
it should still fix some issue Java Annotations are designed to associate static metadata to classes as Oracle says here.
Anyway, if you still want to associate this variable metadata to an annotation, you could achieve this associating a custom class to both annotations that is holding the value you want to be variable.
code :
// annotate your class with you custom class
@CallService(name=MyVariableMetadata.class)
Modify parameter of method by value in annotation aspectJ

Modify parameter of method by value in annotation aspectJ


By : whateveranyhow
Date : March 29 2020, 07:55 AM
this one helps. I started learing aspectJ and I wondering is it possible to create aspect in file .aj instead of annotation in .java, this is my example: , Yes, that is possible.
code :
public aspect MyAspect {

    public MyAspect() {
      System.out.println("Aspect instance created");
    }

   pointcut myPointcut(ParameterType parameter)
               : ("execution(* *(..)) && @annotation(Te));

    Object around(ParameterType parameter) : myPointcut(parameter) {
       // Business logic here
       // 'thisJoinPointStaticPart' will give you access to join point
       // 'this' will give you access to advice instance itself
       // `return proceed();` will allow you to execute advised join point
    }
}
Related Posts Related Posts :
  • Why onNext has no effect
  • IntelliJ Idea 2018.2 no option for importing gradle project
  • Remove a negative element from an array w/o array.copy
  • Could this prevent overflow in Java?
  • In Java Swing, can I receive Caret events in real time?
  • I need help not using brute force when using JFrames and DrawWindows
  • How do I refactor ArrayList<MyClass> into MyClassLIst?
  • My program keeps saying that the method cannot be resolved
  • BubbleSort -my code returns random addresses
  • JavaFX components inside HTML?
  • Character in Java game not responding
  • Working around access denied in a FileWalking Tree in Java7
  • How to avoid if/else when using multple suppliers?
  • How to pass object from table cell editor to Table Model?
  • Paypal Sandbox payment state pending
  • sejda-console.bat passing parameters with spaces
  • Multiple Consumers Spring Kafka
  • Bitbucket pipeline: environmental variables in build.gradle file not recognized
  • Java static enum method to return a default enum value
  • What is the complexity of empty for loop?
  • Group randomly List of Lists as N subsets with K elements in each
  • How to set texture on a shape drawn by glDrawArrays()?
  • How to make a jlabel resizable according to the window
  • Java Mathematical Expression Syntax
  • assigning values to characters in java
  • Method overriding and Inheritance in java
  • given a set of lists/groups with a series of number, find matching numbers
  • Connection to HID USB device (keyboard and mouse) in android
  • Inject HttpServletRequest in CDI SessionScoped bean
  • Pool game in java - ball collision algorithm
  • Focus ScrollView to selected position programmatically - Android
  • Is it hibernate bug?
  • Glib memory allocation error
  • Android Proguard - step by step
  • Setting the pivot point of a JPanel to its center
  • java check time is greater time
  • how to save a screenshot (matlab)
  • Anti-aliasing filled shapes in libgdx
  • Gwt custom text box having baloon popup
  • How to change date dynamically for each element in an Array
  • JPanel won't add the JLabel text?
  • how to access the .properties file in ant if it is in different location
  • Reduce application memory footprint
  • java.lang.ClassCastException: javax.mail.Session cannot be cast to javax.mail.Session
  • What is the exact purpose of calling System.exit() in java
  • How to do you get output from Javascript into Java using ScriptEngine
  • Java replaceAll() method to escape special characters
  • Java (Removing a 'keyword' from the alphabet)
  • Format BigDecimal in Spring
  • iterating checkbox values stored in array using EL
  • Java - Jackcess API with .accde(MS Access) format
  • Alternative for some of Struts 1 methods in Struts 2
  • javax.crypto JDK source code, again
  • Spring Roo - Command 'service' not found
  • antlr4: ATN version 2 expected 3
  • Deploy GlassFish using Netbeans generate java.net.MalformedURLException: Bad URL path
  • why is wait() called for loop in Thread.join() of Java?
  • Java JAXB marshall into DOM Document
  • Why JDBI 3 @ColumnName annotation doesn't work?
  • Java SimpleDateformatter with 10 decimals after the seconds, cannot convert to Date
  • shadow
    Privacy Policy - Terms - Contact Us © ourworld-yourmove.org