public class TypeReference<T> extends Object
T. Java doesn't yet provide a way to
represent generic types, so this class does. Forces clients to create a
subclass of this class which enables retrieval the type information even at
runtime.
For example, to create a type literal for List<String>, you can
create an empty anonymous inner class:
TypeReference<List<String>> list = new TypeReference<List<String>>() {};
This syntax cannot be used to create type literals that have wildcard
parameters, such as Class<?> or List<? extends CharSequence>.| 限定符和类型 | 字段和说明 |
|---|---|
static Type |
LIST_STRING |
protected Type |
type |
| 限定符 | 构造器和说明 |
|---|---|
protected |
TypeReference()
Constructs a new type literal.
|
protected |
TypeReference(Type... actualTypeArguments) |
protected TypeReference()
Clients create an empty anonymous subclass. Doing so embeds the type parameter in the anonymous class's type hierarchy so we can reconstitute it at runtime despite erasure.
protected TypeReference(Type... actualTypeArguments)
actualTypeArguments - 类别public static Type intern(ParameterizedTypeImpl type)
public Type getType()
Type instance.Copyright © 2024. All rights reserved.