spring ConditionalOnJava 源码
springboot ConditionalOnJava 代码
文件路径：/spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/condition/ConditionalOnJava.java
/*
* Copyright 2012-2019 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.boot.autoconfigure.condition;
import java.lang.annotation.Documented;
import java.lang.annotation.ElementType;
import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;
import java.lang.annotation.Target;
import org.springframework.boot.system.JavaVersion;
import org.springframework.context.annotation.Conditional;
/**
* {@link Conditional @Conditional} that matches based on the JVM version the application
* is running on.
*
* @author Oliver Gierke
* @author Phillip Webb
* @author Andy Wilkinson
* @since 1.1.0
*/
@Target({ ElementType.TYPE, ElementType.METHOD })
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Conditional(OnJavaCondition.class)
public @interface ConditionalOnJava {
/**
* Configures whether the value configured in {@link #value()} shall be considered the
* upper exclusive or lower inclusive boundary. Defaults to
* {@link Range#EQUAL_OR_NEWER}.
* @return the range
*/
Range range() default Range.EQUAL_OR_NEWER;
/**
* The {@link JavaVersion} to check for. Use {@link #range()} to specify whether the
* configured value is an upper-exclusive or lower-inclusive boundary.
* @return the java version
*/
JavaVersion value();
/**
* Range options.
*/
enum Range {
/**
* Equal to, or newer than the specified {@link JavaVersion}.
*/
EQUAL_OR_NEWER,
/**
* Older than the specified {@link JavaVersion}.
*/
OLDER_THAN
}
}
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- 本文标签： Java Spring Spring Boot
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