The getAnnotatedReceiverType() method of a Constructor class is used to return an AnnotatedType object that represents the AnnotatedType to specify the receiver type of this constructor. If the constructor has a receiver parameter then The receiver type of a constructor is available. If this constructor either has no receiver parameter or has a receiver parameter with no annotations on its type, then the return value is an AnnotatedType object representing an element with no annotations. If this constructor is a top-level static member then the return value is null.
Syntax:
public AnnotatedType getAnnotatedReceiverType()
Parameters: This method accepts nothing.
Return value: This method returns an object of AnnotatedType representing the receiver type of the method or constructor represented by this Executable or null if this Executable can not have a receiver parameter.
Below programs illustrate the getAnnotatedReceiverType() method:
Program 1:
// Java program to demonstrate// Constructor.getAnnotatedReceiverType() method  import java.lang.annotation.ElementType;import java.lang.annotation.Retention;import java.lang.annotation.RetentionPolicy;import java.lang.annotation.Target;import java.lang.reflect.AnnotatedType;import java.lang.reflect.Constructor;  public class GFG {      public static void main(String[] args)        throws NoSuchMethodException    {          // create a constructor class        Constructor<?> c = Test.class.getConstructors()[0];          // apply getAnnotatedReceiverType()        AnnotatedType atr            = c.getAnnotatedReceiverType();          // print result        System.out.println(atr);        System.out.println("Type = "                           + atr.getType().getTypeName());    }}class Test {    public Test(@Annotation Test test) {}}  @Target({ ElementType.TYPE_USE })@Retention(RetentionPolicy.RUNTIME)@interface Annotation {} |
sun.reflect.annotation.AnnotatedTypeFactory$AnnotatedTypeBaseImpl@12a3a380 Type = Test
Program 2:
// Java program to demonstrate// Constructor.getAnnotatedReceiverType() method  import java.lang.annotation.ElementType;import java.lang.annotation.Retention;import java.lang.annotation.RetentionPolicy;import java.lang.annotation.Target;import java.lang.reflect.AnnotatedType;import java.lang.reflect.Constructor;  public class GFG {      public static void main(String[] args)        throws NoSuchMethodException    {          // create a constructor class        Constructor<?> c            = Demo.class.getConstructors()[0];          // apply getAnnotatedReceiverType()        AnnotatedType atr            = c.getAnnotatedReceiverType();          // print result        System.out.println(atr);        System.out.println("Type = "                           + atr.getType().getTypeName());    }}class Demo {    public Demo(@PathVar String str) {}}  @Target({ ElementType.TYPE_USE })@Retention(RetentionPolicy.RUNTIME)@interface PathVar {} |
sun.reflect.annotation.AnnotatedTypeFactory$AnnotatedTypeBaseImpl@12a3a380 Type = Demo
References: https://docs.oracle.com/javase/10/docs/api/java/lang/reflect/Constructor.html#getAnnotatedReceiverType()
… [Trackback]
[…] There you will find 45539 additional Information on that Topic: geeksforgeeks.org/constructor-getannotatedreceivertype-method-in-java-with-examples/ […]