org.springframework.core

Class ParameterizedTypeReference<T>

java.lang.Object

org.springframework.core.ParameterizedTypeReference<T>

public abstract class ParameterizedTypeReference<T>
extends java.lang.Object

The purpose of this class is to enable capturing and passing a generic Type. In order to capture the generic type and retain it at runtime, you need to create a subclass as follows:

 ParameterizedTypeReference<List<String>> typeRef = new ParameterizedTypeReference<List<String>>() {};
 

The resulting typeReference instance can then be used to obtain a Type instance that carries parameterized type information. For more information on "super type tokens" see the link to Neal Gafter's blog post.

Since:

3.2

Author:

Arjen Poutsma, Rossen Stoyanchev

See Also:

Neal Gafter on Super Type Tokens

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.reflect.Type	type

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	ParameterizedTypeReference()

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
private static java.lang.Class<?>	findParameterizedTypeReferenceSubclass(java.lang.Class<?> child)
java.lang.reflect.Type	getType()
int	hashCode()
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

type

private final java.lang.reflect.Type type

Constructor Detail

ParameterizedTypeReference

protected ParameterizedTypeReference()

Method Detail

getType

public java.lang.reflect.Type getType()

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

findParameterizedTypeReferenceSubclass

private static java.lang.Class<?> findParameterizedTypeReferenceSubclass(java.lang.Class<?> child)