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/**
 *
 * Copyright (c) 2005, European Commission project OneLab under contract 034819
 * (http://www.one-lab.org)
 * 
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or 
 * without modification, are permitted provided that the following 
 * conditions are met:
 *  - Redistributions of source code must retain the above copyright 
 *    notice, this list of conditions and the following disclaimer.
 *  - Redistributions in binary form must reproduce the above copyright 
 *    notice, this list of conditions and the following disclaimer in 
 *    the documentation and/or other materials provided with the distribution.
 *  - Neither the name of the University Catholique de Louvain - UCL
 *    nor the names of its contributors may be used to endorse or 
 *    promote products derived from this software without specific prior 
 *    written permission.
 *    
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 
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/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
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 *     http://www.apache.org/licenses/LICENSE-2.0
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 */
package org.apache.hadoop.util.bloom;

import org.apache.hadoop.classification.InterfaceAudience;
import org.apache.hadoop.classification.InterfaceStability;

/**
 * Defines the different remove scheme for retouched Bloom filters.
 * 

* Originally created by * European Commission One-Lab Project 034819. */ @InterfaceAudience.Public @InterfaceStability.Stable public interface RemoveScheme { /** * Random selection. *

* The idea is to randomly select a bit to reset. */ public final static short RANDOM = 0; /** * MinimumFN Selection. *

* The idea is to select the bit to reset that will generate the minimum * number of false negative. */ public final static short MINIMUM_FN = 1; /** * MaximumFP Selection. *

* The idea is to select the bit to reset that will remove the maximum number * of false positive. */ public final static short MAXIMUM_FP = 2; /** * Ratio Selection. *

* The idea is to select the bit to reset that will, at the same time, remove * the maximum number of false positve while minimizing the amount of false * negative generated. */ public final static short RATIO = 3; }





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