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A simple input parameter verification component

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package plus.jdk.ananotaions;

import plus.jdk.common.IValidator;
import plus.jdk.validator.DefaultValidator;

import java.lang.annotation.*;

@Inherited
@Target({ElementType.FIELD})
@Retention(RetentionPolicy.RUNTIME)
@Repeatable(ValidationRules.class)
public @interface ValidationRule {

    /**
     * 当前规则验证类，需要实现接口对应的方法
     */
    Class validator() default DefaultValidator.class;

    /**
     * 验证器输入参数
     */
    String args() default "";

    /**
     * 是否为必填的值
     */
    boolean required() default false;

    /**
     * 指定错误信息
     */
    String message() default "invalid params";
}