Class JSONObject

core/src/processing/data/JSONObject.java:113–2282

A JSONObject is an unordered collection of name/value pairs. Its external form is a string wrapped in curly braces with colons between the names and values, and commas between the values and names. The internal form is an object having get and opt methods for accessing the

 * @see PApplet#saveJSONArray(JSONArray, String)
 */
public class JSONObject {
  /**
   * The maximum number of keys in the key pool.
   */
  private static final int keyPoolSize = 100;

  /**
   * Key pooling is like string interning, but without permanently tying up
   * memory. To help conserve memory, storage of duplicated key strings in
   * JSONObjects will be avoided by using a key pool to manage unique key
   * string objects. This is used by JSONObject.put(string, object).
   */
  private static HashMap<String, Object> keyPool =
    new HashMap<>(keyPoolSize);


  // . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .


  /**
   * JSONObject.NULL is equivalent to the value that JavaScript calls null,
   * whilst Java's null is equivalent to the value that JavaScript calls
   * undefined.
   */
  private static final class Null {
    /**
     * There is only intended to be a single instance of the NULL object,
     * so the clone method returns itself.
     * @return     NULL.
     */
    @Override
    protected final Object clone() {
      return this;
    }

    /**
     * A Null object is equal to the null value and to itself.
     * @param object    An object to test for nullness.
     * @return true if the object parameter is the JSONObject.NULL object
     *  or null.
     */
    @Override
    public boolean equals(Object object) {
      return object == null || object == this;
    }

    /**
     * Get the "null" string value.
     * @return The string "null".
     */
    @Override
    public String toString() {
      return "null";
    }

    @Override
    public int hashCode() {
      // TODO Auto-generated method stub