juplo.de Git - jpa-converters/blob - src/main/java/de/juplo/jpa/converters/TemporalAmountToSecondsConverter.java

   1 package de.juplo.jpa.converters;
   2
   3 import java.time.Duration;
   4 import java.time.temporal.ChronoUnit;
   5 import java.time.temporal.TemporalAmount;
   6 import javax.persistence.AttributeConverter;
   7 import javax.persistence.Converter;
   8
   9
  10 /**
  11  * Converts a {@link TemporalAmount} into a {@link Long} representing seconds.
  12  * @author Kai Moritz
  13  */
  14 @Converter
  15 public class TemporalAmountToSecondsConverter implements AttributeConverter<TemporalAmount, Long>
  16 {
  17   @Override
  18   public Long convertToDatabaseColumn(TemporalAmount amount)
  19   {
  20     if (amount == null)
  21       return null;
  22     return amount.get(ChronoUnit.SECONDS);
  23   }
  24
  25   @Override
  26   public TemporalAmount convertToEntityAttribute(Long seconds)
  27   {
  28     if (seconds == null)
  29       return null;
  30     return Duration.ofSeconds(seconds);
  31   }
  32 }