return (assignments == null) || assignments.size() == 0;

  }

 

  public Rate getRate() {

    if (commonValue == null) {

      if (isAssignmentListEmpty()) {

        if (getResource().isLabor())

          return ClassUtils.defaultRate;

        else

    }

   

    double percent = 1.0D;

    Resource resource = (Resource)(parameters.isLeftAssociation() ? found : parameters.getThisObject());

    if (matcher.group(2) != null) { // if text was empty use default

      if (!getParameters().isAllowDetailsEntry())

        throw new ParseException(Messages.getString("Message.cannotEnterUnits"),0);

      RateFormat format = resource.getRateFormat();

      rate = (Rate) format.parseObject(matcher.group(2));

//      if (resource.isLabor())

//        percentNumber = percentFormat.parse(matcher.group(2)+ Settings.PERCENT); // force a percent sign at the end for labor.  If there are two, it is ignored

//      else //TODO allow parsing values like 3/d for material resources

//        percentNumber = NumberFormat.getInstance().parse(matcher.group(2));

//     

//      if (percentNumber == null)

//        throw new ParseException(getErrorMessage(string), pos.getIndex());

//      percent = percentNumber.doubleValue();

    } else if (resource.isMaterial()) {

    }

    Assignment ass = Assignment.getInstance((Task) (parameters.isLeftAssociation() ? parameters.getThisObject() : found),

                    resource,

                      percent,

                    0);

*/

  public void usePropertiesOf(Assignment from) {

    boolean compatibleTypes = isLabor() == from.isLabor();

    double units = getUnits();

    Resource resource = getResource();

    detail = (AssignmentDetail) from.detail.clone();

      detail.replaceResourceAndUnits(units,resource);

    if (!compatibleTypes) // don't want to set units if not compatible

    } catch (ParseException e) {

      return null;

    }

    if (field.isRate())

    return value;

  }

    this.resourceType = resourceType;

    // if resource type changes to/from labor, then initialize rates

    if (oldIsLabor != isLabor()) {

      if (!isLabor()) { // Non labor resources have no time unit

        getStandardRate().setTimeUnit(TimeUnit.NON_TEMPORAL);

        getOvertimeRate().setTimeUnit(TimeUnit.NON_TEMPORAL);

      }