ICapacityBuffer.java example

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/*
 * Created on Aug 18, 2005 Copyright (C) 2001-5, Anthony Harrison anh23@pitt.edu
 * (jactr.org) This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of the License,
 * or (at your option) any later version. This library 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 Lesser General Public License for more details. You should have
 * received a copy of the GNU Lesser General Public License along with this
 * library; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place, Suite 330, Boston, MA 02111-1307 USA
 */
package org.jactr.core.buffer;

import java.util.Collection;

import org.jactr.core.chunk.IChunk;

/**
 * interface for an activation buffer that can contain more than one chunk.
 * 
 * @author developer
 */
public interface ICapacityBuffer extends IActivationBuffer
{
  static public final String EJECTION_POLICY_PARAM = "EjectionPolicy";

  static public enum EjectionPolicy {
    LeastRecentlyUsed, LeastRecentlyMatched, LeastRecentlyAdded, MostRecentlyUsed, MostRecentlyMatched, MostRecentlyAdded
  };

  public Collection<IChunk> getSourceChunks();

  public EjectionPolicy getEjectionPolicy();

  public void setEjectionPolicy(EjectionPolicy policy);

}