Ejemplo n.º 1
0
  /**
   * This method is used when the TransposePathElement is used on the LFH as data.
   *
   * <p>Aka, normal "evaluate" returns either a Number or a String.
   *
   * @param walkedPath WalkedPath to evaluate against
   * @return The data specified by this TransposePathElement.
   */
  public Optional<Object> objectEvaluate(WalkedPath walkedPath) {
    // Grap the data we need from however far up the tree we are supposed to go
    PathStep pathStep = walkedPath.elementFromEnd(upLevel);

    if (pathStep == null) {
      return Optional.empty();
    }

    Object treeRef = pathStep.getTreeRef();

    // Now walk down from that level using the subPathReader
    if (subPathReader == null) {
      return Optional.of(treeRef);
    } else {
      return subPathReader.read(treeRef, walkedPath);
    }
  }
Ejemplo n.º 2
0
 public MatchedElement match(String dataKey, WalkedPath walkedPath) {
   return walkedPath
       .lastElement()
       .getMatchedElement(); // copy what our parent was so that write keys of &0 and &1 both work.
 }