spring TypeReference 源码
spring TypeReference 代码
文件路径：/spring-core/src/main/java/org/springframework/aot/hint/TypeReference.java
/*
* Copyright 2002-2022 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.aot.hint;
import org.springframework.lang.Nullable;
/**
* Type abstraction that can be used to refer to types that are not available as
* a {@link Class} yet.
*
* @author Stephane Nicoll
* @since 6.0
*/
public interface TypeReference {
/**
* Return the fully qualified name of this type reference.
* @return the reflection target name
*/
String getName();
/**
* Return the {@linkplain Class#getCanonicalName() canonical name} of this
* type reference.
* @return the canonical name
*/
String getCanonicalName();
/**
* Return the package name of this type.
* @return the package name
*/
String getPackageName();
/**
* Return the {@linkplain Class#getSimpleName() simple name} of this type
* reference.
* @return the simple name
*/
String getSimpleName();
/**
* Return the enclosing type reference, or {@code null} if this type reference
* does not have an enclosing type.
* @return the enclosing type, if any
*/
@Nullable
TypeReference getEnclosingType();
/**
* Create an instance based on the specified type.
* @param type the type to wrap
* @return a type reference for the specified type
*/
static TypeReference of(Class<?> type) {
return ReflectionTypeReference.of(type);
}
/**
* Create an instance based on the specified class name.
* The format of the class name must follow {@linkplain Class#getName()},
* in particular inner classes should be separated by a {@code $}.
* @param className the class name of the type to wrap
* @return a type reference for the specified class name
*/
static TypeReference of(String className) {
return SimpleTypeReference.of(className);
}
}
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