org.onetwo.common.spring.condition.OnMissingBean Maven / Gradle / Ivy

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package org.onetwo.common.spring.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.context.annotation.Conditional;

/**
 * @author wayshall
 * 

 */
@Target({ ElementType.TYPE, ElementType.METHOD })
@Retention(RetentionPolicy.RUNTIME)
@Documented
@Conditional(OnBeanCondition.class)
public @interface OnMissingBean {
	
	/***
	 * and 
	 * 查找所有指定类型的bean，结果为空时，才匹配成功
	 * @author wayshall
	 * @return
	 */
	Class[] value() default {};
	ClassNotPresentAction onClassNotPresent() default ClassNotPresentAction.NOT_MATCH;
	
	enum ClassNotPresentAction {
		THROW,
		MATCH,
		NOT_MATCH
	}
	
}