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Vaadin 7 compatibility package for Vaadin 8

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/*
 * Copyright (C) 2000-2024 Vaadin Ltd
 *
 * This program is available under Vaadin Commercial License and Service Terms.
 *
 * See  for the full
 * license.
 */
package com.vaadin.v7.data.validator;

/**
 * Validator base class for validating strings.
 * 
 * To include the value that failed validation in the exception message you can
 * use "{0}" in the error message. This will be replaced with the failed value
 * (converted to string using {@link #toString()}) or "null" if the value is
 * null.
 * 
 *
 * @author Vaadin Ltd.
 * @since 5.4
 *
 *
 * @deprecated As of 8.0, replaced by {@link com.vaadin.data.validator.AbstractValidator}
 */
@SuppressWarnings("serial")
@Deprecated
public abstract class AbstractStringValidator
        extends AbstractValidator {

    /**
     * Constructs a validator for strings.
     *
     * 
     * Null and empty string values are always accepted. To reject empty values,
     * set the field being validated as required.
     * 
     *
     * @param errorMessage
     *            the message to be included in an {@link InvalidValueException}
     *            (with "{0}" replaced by the value that failed validation).
     */
    public AbstractStringValidator(String errorMessage) {
        super(errorMessage);
    }

    @Override
    public Class getType() {
        return String.class;
    }
}