How to use

isFieldRequiredToEvaluateProjection

method

in

com.redhat.lightblue.query.Projection

/**
 * Returns true if the field is needed to evaluate the projection
 */
public boolean isFieldRequiredToEvaluateProjection(Path field) {
  LOGGER.debug("Checking if {} is referenced in projection", field);
  return isFieldRequiredToEvaluateProjection(field, Path.EMPTY);
}

/**
 * Returns true if the field is needed to evaluate the projection
 */
public boolean isFieldRequiredToEvaluateProjection(Path field) {
  LOGGER.debug("Checking if {} is referenced in projection", field);
  return isFieldRequiredToEvaluateProjection(field, Path.EMPTY);
}

  (node instanceof ArrayElement)) {
} else if( (p!=null && p.isFieldRequiredToEvaluateProjection(field)) ||
      (q!=null && q.isRequired(field)) ||
      (s!=null && s.isRequired(field)) ) {

    || (node instanceof ArrayElement)) {
} else if ((p != null && p.isFieldRequiredToEvaluateProjection(field))
    || (q != null && q.isRequired(field))
    || (s != null && s.isRequired(field))) {

      ret = ((ArrayProjection) this).getProject().isFieldRequiredToEvaluateProjection(field, nestedCtx);
} else if (this instanceof ProjectionList) {
  for (Projection x : ((ProjectionList) this).getItems()) {
    if (x.isFieldRequiredToEvaluateProjection(field, ctx)) {
      return true;

      ret = ((ArrayProjection) this).getProject().isFieldRequiredToEvaluateProjection(field, nestedCtx);
} else if (this instanceof ProjectionList) {
  for (Projection x : ((ProjectionList) this).getItems()) {
    if (x.isFieldRequiredToEvaluateProjection(field, ctx)) {
      return true;

  fields.add(new Path(localField,Path.ANYPATH));
} else {
  if (localProjection != null && localProjection.isFieldRequiredToEvaluateProjection(localField)) {
    LOGGER.debug("{}: required", localField);
    fields.add(localField);
  if (requestProjection != null && requestProjection.isFieldRequiredToEvaluateProjection(globalField)) {
    LOGGER.debug("{}: required", localField);
    fields.add(localField);

  fields.add(new Path(localField,Path.ANYPATH));
} else {
  if (localProjection != null && localProjection.isFieldRequiredToEvaluateProjection(localField)) {
    LOGGER.debug("{}: required", localField);
    fields.add(localField);
  if (requestProjection != null && requestProjection.isFieldRequiredToEvaluateProjection(globalField)) {
    LOGGER.debug("{}: required", localField);
    fields.add(localField);