text: /*
   *  RapidMiner
   *
   *  Copyright (C) 2001-2014 by RapidMiner and the contributors
   *
   *  Complete list of developers available at our web site:
   *
   *       http://rapidminer.com
   *
   *  This program is free software: you can redistribute it and/or modify
   *  it under the terms of the GNU Affero General Public License as published by
   *  the Free Software Foundation, either version 3 of the License, or
   *  (at your option) any later version.
   *
   *  This program is distributed in the hope that it will be useful,
   *  but WITHOUT ANY WARRANTY; without even the implied warranty of
   *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   *  GNU Affero General Public License for more details.
   *
   *  You should have received a copy of the GNU Affero General Public License
   *  along with this program.  If not, see http://www.gnu.org/licenses/.
   */
  package com.rapidminer.operator.learner.associations.fpgrowth;
  
  import java.util.Collection;
  import java.util.LinkedList;
  import java.util.List;
  
  /** 
   * An entry in the header table.
   * 
   * @author Sebastian Land
   */
  public class Header {
  
  	FrequencyStack frequencies;
  
  	List<FPTreeNode> siblingChain;
  
  	public Header() {
  		frequencies = new ListFrequencyStack();
  		siblingChain = new LinkedList<FPTreeNode>();
  	}
  
  	public void addSibling(FPTreeNode node) {
  		siblingChain.add(node);
  	}
  
  	public Collection<FPTreeNode> getSiblingChain() {
  		return siblingChain;
  	}
  
  	public FrequencyStack getFrequencies() {
  		return frequencies;
  	}
  }
  