public final class

FieldAttributes

extends Object
java.lang.Object
   ↳ com.google.gson.FieldAttributes

Class Overview

A data object that stores attributes of a field.

This class is immutable; therefore, it can be safely shared across threads.

Summary

Public Constructors
FieldAttributes(Field f)
Constructs a Field Attributes object from the f.
Public Methods
<T extends Annotation> T getAnnotation(Class<T> annotation)
Return the T annotation object from this field if it exist; otherwise returns null.
Collection<Annotation> getAnnotations()
Return the annotations that are present on this field.
Class<?> getDeclaredClass()
Returns the Class object that was declared for this field.
Type getDeclaredType()

For example, assume the following class definition: 

 public class Foo {
   private String bar;
   private List<String> red;
 }

 Type listParmeterizedType = new TypeToken<List<String>>() {}.getType();

This method would return String.class for the bar field and listParameterizedType for the red field.

Class<?> getDeclaringClass()
String getName()
boolean hasModifier(int modifier)
Returns true if the field is defined with the modifier.
[Expand]
Inherited Methods
From class java.lang.Object

Public Constructors

public FieldAttributes (Field f)

Constructs a Field Attributes object from the f.

Parameters
f the field to pull attributes from

Public Methods

public T getAnnotation (Class<T> annotation)

Return the T annotation object from this field if it exist; otherwise returns null.

Parameters
annotation the class of the annotation that will be retrieved
Returns
  • the annotation instance if it is bound to the field; otherwise null

public Collection<Annotation> getAnnotations ()

Return the annotations that are present on this field.

Returns
  • an array of all the annotations set on the field

public Class<?> getDeclaredClass ()

Returns the Class object that was declared for this field.

For example, assume the following class definition: 

 public class Foo {
   private String bar;
   private List<String> red;
 }

This method would return String.class for the bar field and List.class for the red field.

Returns
  • the specific class object that was declared for the field

public Type getDeclaredType ()

For example, assume the following class definition: 

 public class Foo {
   private String bar;
   private List<String> red;
 }

 Type listParmeterizedType = new TypeToken<List<String>>() {}.getType();

This method would return String.class for the bar field and listParameterizedType for the red field.

Returns
  • the specific type declared for this field

public Class<?> getDeclaringClass ()

Returns
  • the declaring class that contains this field

public String getName ()

Returns
  • the name of the field

public boolean hasModifier (int modifier)

Returns true if the field is defined with the modifier.

This method is meant to be called as: 

 boolean hasPublicModifier = fieldAttribute.hasModifier(java.lang.reflect.Modifier.PUBLIC);

See Also
  • java.lang.reflect.Modifier