Period (Joda Time) <-> PostgreSQL Interval converter for Doma(http://doma.seasar.org/)

JodaTimePeriodConverter.java

package sample.converters;

import java.sql.SQLException;

import org.joda.time.Period;
import org.postgresql.util.PGInterval;
import org.seasar.doma.ExternalDomain;
import org.seasar.doma.jdbc.domain.DomainConverter;

@ExternalDomain
public class JodaTimePeriodConverter implements DomainConverter<Period, String> {
	@Override
	public String fromDomainToValue(Period domain) {
		PGInterval interval = new PGInterval(
			domain.getYears(), domain.getMonths(), domain.getDays(),
			domain.getHours(), domain.getMinutes(), domain.getSeconds()
		);

		return interval.getValue();
	}

	@Override
	public Period fromValueToDomain(String value) {
		try {
			PGInterval interval = new PGInterval(value);

			return new Period(
				interval.getYears(), interval.getMonths(), 0, interval.getDays(),
				interval.getHours(), interval.getMinutes(), (int)interval.getSeconds(), 0
			);
		} catch (SQLException e) {
			throw new RuntimeException("Invalid value as interval is passed.", e);
		}
	}
}