Android Open Source - sodf Node

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License

The source code is released under:

Copyright (c) 2013 Lorenz Lehmann Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Sof...

Java Source Code

package lal.sodf.framework.ontology;
//  w  w  w  .j  a  v a  2 s  .c o m
import java.util.List;

/**
 * An interface that has to be implemented by all nodes
 * @author Lorenz Lehmann
 *
 */
public abstract class Node {
  /** The key to uniquely identify the node on this level of the hirachy */
  protected String key;
  /** The direct parent of this node */
  protected Node parent;
  
  /** Create a new node with a specific key */
  public Node(String _key){
    setKey(_key);    
  }
  
  /** Create a new node with a specific key as a child of a parent node*/
  public Node(KeyNode _parent, String _key){
    setParent(_parent);
    setKey(_key);
    //tell the parent to include this node as a child
    if (_parent == null) return; //but not for root nodes
    _parent.addChild(this);
  }
  
  /** Set the key of this node */
  public void setKey(String _key){
    this.key = _key;    
  }
  
  /** Get the key of this node */
  public String getKey(){
    return key;    
  }
  
  /** Set the parent of this node */
  public void setParent(Node _parent){
    parent = _parent;    
  }
  
  /** Get the parent of this node */
  public Node getParent(){
    return parent;
  }
  
  /** 
   * Get a child KeyNode with the provided key
   * @return The KeyNode or null if the found node is a KeyValueNode or does not exist
   */
  public KeyNode getKeyNodeChild(String key)  {return null;}
  
  /** 
   * Get a child KeyValueNode with the provided key
   * @return The KeyValueNode or null if the found node is a KeyNode or does not exist
   */
  public KeyValueNode getKeyValueNodeChild(String key) {return null;}
  
  /** 
   * Get all children of this node, which are KeyNodes
   * @return The KeyNodes or an empty Node if this Node has no KeyNodes as children
   */
  public List<KeyNode> getKeyNodeChildren() {return null;}

  /* (non-Javadoc)
   * @see java.lang.Object#toString()
   */
  @Override
  public String toString() {
    return "Node [key=" + key + "]";
  }

  
}

Java Source Code List

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