svndigest - svndigest

Rev	Date	Author	Line
2957	19 Nov 14	nicklas	1	package net.sf.basedb.reggie.converter;
2957	19 Nov 14	nicklas	2
2957	19 Nov 14	nicklas	3	/**
2957	19 Nov 14	nicklas	4	Value converter implementation that only allow non-null values.
2957	19 Nov 14	nicklas	5	If a value is null, a pre-configured exception is thrown.
2957	19 Nov 14	nicklas	6
2957	19 Nov 14	nicklas	7	@author nicklas
2957	19 Nov 14	nicklas	8	@since 2.17.2
2957	19 Nov 14	nicklas	9	*/
2957	19 Nov 14	nicklas	10	public class RequiredValueConverter<T>
2957	19 Nov 14	nicklas	11	implements ValueConverter<T, T>
2957	19 Nov 14	nicklas	12	{
2957	19 Nov 14	nicklas	13
2957	19 Nov 14	nicklas	14	private final String msg;
2957	19 Nov 14	nicklas	15
2957	19 Nov 14	nicklas	16	public RequiredValueConverter(String msg)
2957	19 Nov 14	nicklas	17	{
2957	19 Nov 14	nicklas	18	this.msg = msg;
2957	19 Nov 14	nicklas	19	}
2957	19 Nov 14	nicklas	20
2957	19 Nov 14	nicklas	21	/*
2957	19 Nov 14	nicklas	22	From the ValueConverter interface
2957	19 Nov 14	nicklas	23	---------------------------------
2957	19 Nov 14	nicklas	24	*/
2957	19 Nov 14	nicklas	25	@Override
2957	19 Nov 14	nicklas	26	public T convert(T value)
2957	19 Nov 14	nicklas	27	{
2957	19 Nov 14	nicklas	28	if (value == null) throw new NullPointerException(msg);
2957	19 Nov 14	nicklas	29	return value;
2957	19 Nov 14	nicklas	30	}
2957	19 Nov 14	nicklas	31	// ----------------------------------
2957	19 Nov 14	nicklas	32
2957	19 Nov 14	nicklas	33	}