package ca.uhn.hl7v2.model;
   
   import java.util.ArrayList;
   import java.util.List;
   
   /**
    * An unspecified Composite datatype that has an undefined number of components, each 
    * of which is a Varies.  
    * This is used to store Varies data, when the data type is unknown.  It is also 
   * used to store unrecognized message constituents.  
   * @author Bryan Tripp
   */
  @SuppressWarnings("serial")
  public class GenericComposite extends AbstractComposite {
      
      private final List<Type> components;
      private final Message message;
  
      /**
       * Creates a generic composite
       *
       * @param message message this object is linked to
       */
      public GenericComposite(Message message) {
          super(message);
          this.message = message;
          components = new ArrayList<>(20);
      }
      
      /** 
       * Returns the single component of this composite at the specified position (starting at 0) - 
       * Creates it (and any nonexistent components before it) if necessary.  
       */
      public Type getComponent(int number) {
          for (int i = components.size(); i <= number; i++) {
              components.add(new Varies(message));
          }
          return components.get(number);
      }    
      
      /** 
       * Returns an array containing the components of this field.
       */
      public Type[] getComponents() {
      	return components.toArray(new Type[0]);
      }    
      
      /** Returns the name of the type (used in XML encoding and profile checking)  */
      public String getName() {
          return "UNKNOWN";
      }
  
  
  }