ConditionalOnJava Type — spring-boot Architecture

Source Code

core/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/condition/ConditionalOnJava.java lines 37–75

@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

	}

}