br.com.jhonsapp.validator.creditcard.DigitVerifierValidator Maven / Gradle / Ivy

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package br.com.jhonsapp.validator.creditcard;

import java.util.regex.Pattern;

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

/**
 * This class validates the digit credit card.
 * 
 * @author Jhonathan Camamacho
 *
 */
public class DigitVerifierValidator extends Object implements ConstraintValidator {
	private Pattern pattern = Pattern.compile("^[0-9]{3}$");

	@Override
	public void initialize(DigitVerifier constraintAnnotation) {
	}

	@Override
	public boolean isValid(String value, ConstraintValidatorContext context) {
		return value == null ? false : pattern.matcher(value).matches();
	}
}