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Validatoin constraint for quartz cron
@Documented
@Constraint(validatedBy = CronExpressionValidator.class)
@Target( {ElementType.METHOD, ElementType.FIELD })
@Retention(RetentionPolicy.RUNTIME)
public @interface CronExpressionConstraint {
String message() default "Invalid cron expression";
Class<?>[] groups() default {};
Class<? extends Payload>[] payload() default {};
}
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