org.hibernate.validator.internal.constraintvalidators.bv.notempty.NotEmptyValidatorForCharSequence Maven / Gradle / Ivy

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JSR 380's RI, Hibernate Validator version ${hibernate-validator.version} and its dependencies repackaged as OSGi bundle

There is a newer version: 5.1.0

/*
 * Hibernate Validator, declare and validate application constraints
 *
 * License: Apache License, Version 2.0
 * See the license.txt file in the root directory or .
 */
package org.hibernate.validator.internal.constraintvalidators.bv.notempty;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import javax.validation.constraints.NotEmpty;

/**
 * Check that the character sequence is not null and its length is strictly superior to 0.
 *
 * @author Guillaume Smet
 */
public class NotEmptyValidatorForCharSequence implements ConstraintValidator {

	/**
	 * Checks the character sequence is not {@code null} and not empty.
	 *
	 * @param charSequence the character sequence to validate
	 * @param constraintValidatorContext context in which the constraint is evaluated
	 * @return returns {@code true} if the character sequence is not {@code null} and not empty.
	 */
	@Override
	public boolean isValid(CharSequence charSequence, ConstraintValidatorContext constraintValidatorContext) {
		if ( charSequence == null ) {
			return false;
		}
		return charSequence.length() > 0;
	}
}