Examples of org.apache.commons.beanutils.ConvertUtilsBean

org.apache.commons.beanutils.ConvertUtilsBean
rgs constructor gets the version that throws exceptions Converter myConverter = new org.apache.commons.beanutils.converter.IntegerConverter(); ConvertUtils.register(myConverter, Integer.TYPE); // Native type ConvertUtils.register(myConverter, Integer.class); // Wrapper class
Converters generally treat null input as if it were invalid input, ie they return their default value if one was specified when the converter was constructed, and throw an exception otherwise. If you prefer nulls to be preserved for converters that are converting to objects (not primitives) then register a converter as above, passing a default value of null to the converter constructor (and of course registering that converter only for the .class target).

When a converter is listed above as having no default value, then that converter will throw an exception when passed null or an invalid value as its input. In particular, by default the BigInteger and BigDecimal converters have no default (and are therefore somewhat inconsistent with the other numerical converters which all have zero as their default).

Converters that generate arrays of each of the primitive types are also automatically configured (including String[]). When passed null or invalid input, these return an empty array (not null). See class AbstractArrayConverter for the supported input formats for these converters.
@author Craig R. McClanahan @author Ralph Schaer @author Chris Audley @author James Strachan @version $Revision: 687089 $ $Date: 2008-08-19 17:33:30 +0100 (Tue, 19 Aug 2008) $ @since 1.7

    }
    String val = valueOf(value);
    if (Arrays.asList(double.class, float.class, Double.class, Float.class, BigDecimal.class).contains(type)) {
      val = val.replace(',', '.').replaceAll(" ","").replaceAll("\\s", ""); // to nie jest zwykla spacja ^^
    }
    return new ConvertUtilsBean().convert(val, type);
  }

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     *
     * @return a configured BeanUtilsBean
     */
    private static BeanUtilsBean createBeanUtilsBean()
    {
        ConvertUtilsBean cub = new ConvertUtilsBean();


        // TODO: is there a smarter way to tell beanutils not to use defaults?


        final boolean[] booleanArray = new boolean[0];
        final byte[] byteArray = new byte[0];
        final char[] charArray = new char[0];
        final double[] doubleArray = new double[0];
        final float[] floatArray = new float[0];
        final int[] intArray = new int[0];
        final long[] longArray = new long[0];
        final short[] shortArray = new short[0];




        cub.register(new BooleanConverter(), Boolean.TYPE);
        cub.register(new BooleanConverter(), Boolean.class);
        cub.register(
            new BooleanArrayConverter(), booleanArray.getClass());
        cub.register(new ByteConverter(), Byte.TYPE);
        cub.register(new ByteConverter(), Byte.class);
        cub.register(
            new ByteArrayConverter(byteArray), byteArray.getClass());
        cub.register(new CharacterConverter(), Character.TYPE);
        cub.register(new CharacterConverter(), Character.class);
        cub.register(
            new CharacterArrayConverter(), charArray.getClass());
        cub.register(new DoubleConverter(), Double.TYPE);
        cub.register(new DoubleConverter(), Double.class);
        cub.register(
            new DoubleArrayConverter(doubleArray), doubleArray.getClass());
        cub.register(new FloatConverter(), Float.TYPE);
        cub.register(new FloatConverter(), Float.class);
        cub.register(new FloatArrayConverter(), floatArray.getClass());
        cub.register(new IntegerConverter(), Integer.TYPE);
        cub.register(new IntegerConverter(), Integer.class);
        cub.register(new IntegerArrayConverter(), intArray.getClass());
        cub.register(new LongConverter(), Long.TYPE);
        cub.register(new LongConverter(), Long.class);
        cub.register(new LongArrayConverter(), longArray.getClass());
        cub.register(new ShortConverter(), Short.TYPE);
        cub.register(new ShortConverter(), Short.class);
        cub.register(new ShortArrayConverter(), shortArray.getClass());
        // TODO: investigate:
        // StringArrayConverter doesn't properly convert an array of tokens with
        // elements containing an underscore, "_".
        // Hacked a replacement class :(
        //        cub.register(new StringArrayConverter(),
        //                        String[].class);
        cub.register(new StrArrayConverter(), String[].class);
        cub.register(new IntegerArrayConverter(), Integer[].class);


        // BigDecimal, BigInteger, Class, Date, String, Time, TimeStamp
        // do not use defaults in the default configuration of ConvertUtilsBean


        return new BeanUtilsBean(cub, new PropertyUtilsBean());

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