Class NodeImpl

src/main/java/gate/annotation/NodeImpl.java:24–85

Provides an implementation for the interface gate.Node.

 *
 */
public class NodeImpl implements Node, Comparable<Node>
{
  /** Freeze the serialization UID. */
  static final long serialVersionUID = -8240414984367916298L;

  /** Construction from id. Creates an unrooted node.
   */
  public NodeImpl (Integer id) {
    this.id = id;
    offset = null;
  } // Node()

  /** Construction from id and offset.
   *
   * @param id the Id of the new node
   * @param offset the (temporal) offset of the Node; Should be <b>null</b>
   *     for non-anchored nodes.
   */
  public NodeImpl (Integer id, Long offset) {
      this.id = id;
      this.offset = offset;
  } // Node(id, offset)

  /** Returns the Id of the Node.
   */
  @Override
  public Integer getId () { return  id; }

  /** Offset (will be null when the node is not anchored)
   */
  @Override
  public Long getOffset () { return  offset; }

  /** String representation
   */
  @Override
  public String toString() {
    return "NodeImpl: id=" + id + "; offset=" + offset;
  } // toString()

  /** Ordering
   */
  @Override
  public int compareTo(Node other) throws ClassCastException {
    return id.compareTo(other.getId());
  } // compareTo

  /** To allow AnnotationSet to revise offsets during editing
   */
  void setOffset(Long offset) { this.offset = offset; }

  /**
   * The id of this node (used for persistency)
   *
   */
  Integer id;
  /**
   * The offset of this node