com.vaadin.data.util.converter.StringToBigIntegerConverter Maven / Gradle / Ivy
/*
* 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.math.BigDecimal;
import java.math.BigInteger;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.Locale;
/**
* A converter that converts from {@link String} to {@link BigInteger} 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 7.4
*/
public class StringToBigIntegerConverter
extends AbstractStringToNumberConverter {
@Override
protected NumberFormat getFormat(Locale locale) {
NumberFormat numberFormat = super.getFormat(locale);
if (numberFormat instanceof DecimalFormat) {
((DecimalFormat) numberFormat).setParseBigDecimal(true);
}
return numberFormat;
}
@Override
public BigInteger convertToModel(String value,
Class targetType, Locale locale)
throws ConversionException {
BigDecimal bigDecimalValue = (BigDecimal) convertToNumber(value,
BigDecimal.class, locale);
return (bigDecimalValue != null) ? bigDecimalValue.toBigInteger()
: null;
}
@Override
public Class getModelType() {
return BigInteger.class;
}
}