Jodatime - 自定义年表

Question

我想计算持续时间,而1天将包括8小时.创建新的年代表是正确的方法吗？

我确实尝试创建一个自定义的Chronology并覆盖汇编方法,例如:

int millisPerDay = 1000 * 60 * 60 * 8;

fields.days = new PreciseDurationField(DurationFieldType.days(), millisPerDay);

然而,它没有达到预期的效果.

有什么建议？

先感谢您

Answer 1

要回答我自己的问题,以下是一个完整的工作年表课(8小时).我在这里发帖,所以它可能会帮助其他人试图解决类似的问题.

import org.joda.time.Chronology;
import org.joda.time.DateTimeZone;
import org.joda.time.DurationFieldType;
import org.joda.time.field.PreciseDurationField;
import org.joda.time.chrono.AssembledChronology;
import org.joda.time.chrono.GregorianChronology;

public final class EightHoursDayChronology extends AssembledChronology {

   private static final EightHoursDayChronology INSTANCE_UTC;

  static{
  INSTANCE_UTC = new EightHoursDayChronology(GregorianChronology.getInstanceUTC());
  }


  public static EightHoursDayChronology getInstance(){
       return INSTANCE_UTC  ;
  }

    private EightHoursDayChronology(Chronology base) {
        super(base, null);
    }

    @Override
   protected void assemble(org.joda.time.chrono.AssembledChronology.Fields fields) {

    int millisPerDay = 1000 * 60 * 60 * 8   ;
    fields.days = new PreciseDurationField(DurationFieldType.days(), millisPerDay)
  }

   @Override
  public Chronology withUTC() {
    return INSTANCE_UTC    ;
  }

    @Override
    public Chronology withZone(DateTimeZone zone) {
        throw new UnsupportedOperationException("Method was not implemented");
    }

    @Override
    public String toString() {
        return "EightHoursDayChronology";
    }

}