spring AutowiredArguments 源码
spring AutowiredArguments 代码
文件路径：/spring-beans/src/main/java/org/springframework/beans/factory/aot/AutowiredArguments.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.beans.factory.aot;
import org.springframework.lang.Nullable;
import org.springframework.util.Assert;
import org.springframework.util.ClassUtils;
/**
* Resolved arguments to be autowired.
*
* @author Phillip Webb
* @author Stephane Nicoll
* @since 6.0
* @see BeanInstanceSupplier
* @see AutowiredMethodArgumentsResolver
*/
@FunctionalInterface
public interface AutowiredArguments {
/**
* Return the resolved argument at the specified index.
* @param <T> the type of the argument
* @param index the argument index
* @param requiredType the required argument type
* @return the argument
*/
@SuppressWarnings("unchecked")
@Nullable
default <T> T get(int index, Class<T> requiredType) {
Object value = getObject(index);
if (!ClassUtils.isAssignableValue(requiredType, value)) {
throw new IllegalArgumentException("Argument type mismatch: expected '" +
ClassUtils.getQualifiedName(requiredType) + "' for value [" + value + "]");
}
return (T) value;
}
/**
* Return the resolved argument at the specified index.
* @param <T> the type of the argument
* @param index the argument index
* @return the argument
*/
@SuppressWarnings("unchecked")
@Nullable
default <T> T get(int index) {
return (T) getObject(index);
}
/**
* Return the resolved argument at the specified index.
* @param index the argument index
* @return the argument
*/
@Nullable
default Object getObject(int index) {
return toArray()[index];
}
/**
* Return the arguments as an object array.
* @return the arguments as an object array
*/
Object[] toArray();
/**
* Factory method to create a new {@link AutowiredArguments} instance from
* the given object array.
* @param arguments the arguments
* @return a new {@link AutowiredArguments} instance
*/
static AutowiredArguments of(Object[] arguments) {
Assert.notNull(arguments, "'arguments' must not be null");
return () -> arguments;
}
}
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