package com.kiwisoft.utils.format;

import javax.swing.SwingConstants;

/**
 * Example implementation of {@link ObjectFormat} which returns a
 * digit-reversed representation of integer numbers.
 *
 * @author Stefan Stiller
 * @version $Revision: 1.2 $, $Date: 2004/09/30 18:09:26 $
 */
public class ExampleObjectFormat extends DefaultObjectFormat
{
    public ExampleObjectFormat()
    {
        super("Example");
    }


    public boolean canFormat(Class aClass)
    {
        return Integer.class==aClass || Long.class==aClass;
    }


    public String format(Object value)
    {
        if (value instanceof Number) return new StringBuffer(value.toString()).reverse().toString();
        return super.format(value);
    }


    public boolean canParse(Class aClass)
    {
        return canFormat(aClass);
    }


    public Object parse(String value, Class targetClass)
    {
        if (value==null) return null;
        value=value.trim();
        if (value.length()==0) return null;
        value=new StringBuffer(value).reverse().toString();
        if (targetClass==Integer.class) return new Integer(value);
        else return new Long(value);
    }


    public int getHorizontalAlignment(Object value)
    {
        return SwingConstants.TRAILING;
    }
}