CronExpressionValidator.java

/*
 * Copyright 2026 Global Crop Diversity Trust
 * Licensed under the Apache License, Version 2.0
 * See LICENSE file in project root folder or http://www.apache.org/licenses/LICENSE-2.0
 */

package org.gringlobal.custom.validation.javax;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;

import org.springframework.scheduling.support.CronExpression;

public class CronExpressionValidator implements ConstraintValidator<CronExpressionValidation, String> {

	@Override
	public boolean isValid(String value, ConstraintValidatorContext context) {
		if (value == null) {
			return true;
		}
		return CronExpression.isValidExpression(value);
	}
}