spring ConditionContext 源码
spring ConditionContext 代码
文件路径：/spring-context/src/main/java/org/springframework/context/annotation/ConditionContext.java
/*
* Copyright 2002-2020 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.context.annotation;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.beans.factory.support.BeanDefinitionRegistry;
import org.springframework.core.env.Environment;
import org.springframework.core.io.ResourceLoader;
import org.springframework.lang.Nullable;
/**
* Context information for use by {@link Condition} implementations.
*
* @author Phillip Webb
* @author Juergen Hoeller
* @since 4.0
*/
public interface ConditionContext {
/**
* Return the {@link BeanDefinitionRegistry} that will hold the bean definition
* should the condition match.
* @throws IllegalStateException if no registry is available (which is unusual:
* only the case with a plain {@link ClassPathScanningCandidateComponentProvider})
*/
BeanDefinitionRegistry getRegistry();
/**
* Return the {@link ConfigurableListableBeanFactory} that will hold the bean
* definition should the condition match, or {@code null} if the bean factory is
* not available (or not downcastable to {@code ConfigurableListableBeanFactory}).
*/
@Nullable
ConfigurableListableBeanFactory getBeanFactory();
/**
* Return the {@link Environment} for which the current application is running.
*/
Environment getEnvironment();
/**
* Return the {@link ResourceLoader} currently being used.
*/
ResourceLoader getResourceLoader();
/**
* Return the {@link ClassLoader} that should be used to load additional classes
* (only {@code null} if even the system ClassLoader isn't accessible).
* @see org.springframework.util.ClassUtils#forName(String, ClassLoader)
*/
@Nullable
ClassLoader getClassLoader();
}
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