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extensions/net.sf.basedb.reggie/trunk/src/net/sf/basedb/reggie/converter/BooleanToEnumConverter.java

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Rev	Date	Author	Line
4465	25 Apr 17	nicklas	1	package net.sf.basedb.reggie.converter;
4465	25 Apr 17	nicklas	2
4465	25 Apr 17	nicklas	3	import java.util.Arrays;
4465	25 Apr 17	nicklas	4	import java.util.List;
4465	25 Apr 17	nicklas	5
4465	25 Apr 17	nicklas	6	/**
4465	25 Apr 17	nicklas	7	Converter for boolean input values to enum output values.
4465	25 Apr 17	nicklas	8
4465	25 Apr 17	nicklas	9	@author nicklas
4465	25 Apr 17	nicklas	10	@since 4.10
4465	25 Apr 17	nicklas	11	*/
4465	25 Apr 17	nicklas	12	public class BooleanToEnumConverter<E>
4465	25 Apr 17	nicklas	13	implements ValueConverter<Boolean, E>
4465	25 Apr 17	nicklas	14	{
4465	25 Apr 17	nicklas	15
4465	25 Apr 17	nicklas	16	private final E trueValue;
4465	25 Apr 17	nicklas	17	private final E falseValue;
4465	25 Apr 17	nicklas	18	private final E nullValue;
4465	25 Apr 17	nicklas	19
4465	25 Apr 17	nicklas	20	/**
4465	25 Apr 17	nicklas	21	Create a new boolean to enum converter with the given values.
4465	25 Apr 17	nicklas	22	*/
4465	25 Apr 17	nicklas	23	public BooleanToEnumConverter(E trueValue, E falseValue, E nullValue)
4465	25 Apr 17	nicklas	24	{
4465	25 Apr 17	nicklas	25	this.trueValue = trueValue;
4465	25 Apr 17	nicklas	26	this.falseValue = falseValue;
4465	25 Apr 17	nicklas	27	this.nullValue = nullValue;
4465	25 Apr 17	nicklas	28	}
4465	25 Apr 17	nicklas	29
4465	25 Apr 17	nicklas	30	@Override
4465	25 Apr 17	nicklas	31	public E convert(Boolean value)
4465	25 Apr 17	nicklas	32	{
4465	25 Apr 17	nicklas	33	return value == null ? nullValue : (value ? trueValue : falseValue);
4465	25 Apr 17	nicklas	34	}
4465	25 Apr 17	nicklas	35
4465	25 Apr 17	nicklas	36	/**
4465	25 Apr 17	nicklas	37	Get all possible values in a list.
4465	25 Apr 17	nicklas	38	*/
4465	25 Apr 17	nicklas	39	public List<E> getEnum()
4465	25 Apr 17	nicklas	40	{
4465	25 Apr 17	nicklas	41	return Arrays.asList(trueValue, falseValue, nullValue);
4465	25 Apr 17	nicklas	42	}
4465	25 Apr 17	nicklas	43	}