Package org.fest.reflect.field

Class FieldTypeRef<T>

  • Type Parameters:
    T - the generic type of the field.
    public class FieldTypeRef<T>
extends java.lang.Object
    Understands the type of a field to access using Java Reflection. This implementation supports Java generics.

    The following is an example of proper usage of this class: 

       // Retrieves the value of the field "powers"
   List<String> powers = field("powers").ofType(new TypeRef<List<String>>() {}).in(jedi).get();

   // Sets the value of the field "powers"
   List<String> powers = new ArrayList<String>();
   powers.add("heal");
   field("powers").ofType(new TypeRef<List<String>>() {}).in(jedi).set(powers);

    Since:
    1.1
    Author:
    Alex Ruiz, Ivan Hristov

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      Invoker<T> in​(java.lang.Object target)
      Returns a new field invoker.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • in

        public Invoker<T> in​(java.lang.Object target)
        Returns a new field invoker. A field invoker is capable of accessing (read/write) the underlying field.
        Parameters:
        target - the object containing the field of interest.
        Returns:
        the created field invoker.
        Throws:
        java.lang.NullPointerException - if the given target is null.
        ReflectionError - if a field with a matching name and type cannot be found.