com.vaadin.data.util.converter.StringToDoubleConverter Maven / Gradle / Ivy

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/*
 * Vaadin Framework 7
 *
 * 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.data.util.converter;

import java.text.NumberFormat;
import java.util.Locale;

/**
 * A converter that converts from {@link String} to {@link Double} and back.
 * Uses the given locale and a {@link NumberFormat} instance for formatting and
 * parsing.
 * 
 * Leading and trailing white spaces are ignored when converting from a String.
 * 
 * 
 * Override and overwrite {@link #getFormat(Locale)} to use a different format.
 * 
 *
 * @author Vaadin Ltd
 * @since 7.0
 */
public class StringToDoubleConverter
        extends AbstractStringToNumberConverter {

    /*
     * (non-Javadoc)
     *
     * @see
     * com.vaadin.data.util.converter.Converter#convertToModel(java.lang.Object,
     * java.util.Locale)
     */
    @Override
    public Double convertToModel(String value,
            Class targetType, Locale locale)
            throws ConversionException {
        Number n = convertToNumber(value, targetType, locale);
        return n == null ? null : n.doubleValue();
    }

    /*
     * (non-Javadoc)
     *
     * @see com.vaadin.data.util.converter.Converter#getModelType()
     */
    @Override
    public Class getModelType() {
        return Double.class;
    }

}