001 /* 002 * CDDL HEADER START 003 * 004 * The contents of this file are subject to the terms of the 005 * Common Development and Distribution License, Version 1.0 only 006 * (the "License"). You may not use this file except in compliance 007 * with the License. 008 * 009 * You can obtain a copy of the license at 010 * trunk/opends/resource/legal-notices/OpenDS.LICENSE 011 * or https://OpenDS.dev.java.net/OpenDS.LICENSE. 012 * See the License for the specific language governing permissions 013 * and limitations under the License. 014 * 015 * When distributing Covered Code, include this CDDL HEADER in each 016 * file and include the License file at 017 * trunk/opends/resource/legal-notices/OpenDS.LICENSE. If applicable, 018 * add the following below this CDDL HEADER, with the fields enclosed 019 * by brackets "[]" replaced with your own identifying information: 020 * Portions Copyright [yyyy] [name of copyright owner] 021 * 022 * CDDL HEADER END 023 * 024 * 025 * Copyright 2006-2008 Sun Microsystems, Inc. 026 */ 027 package org.opends.server.backends.jeb; 028 029 import org.opends.server.protocols.asn1.ASN1OctetString; 030 031 import java.util.Comparator; 032 033 /** 034 * This class implements a comparator for ASN1OctetString using 035 * a byte array comparator supplied in its constructor. 036 */ 037 public class OctetStringKeyComparator implements Comparator<ASN1OctetString> 038 { 039 /** 040 * The byte array comparator used to compare the octet string values. 041 */ 042 private Comparator<byte[]> comparator; 043 044 /** 045 * Create a new ASN1 octet string comparator. 046 * @param comparator The byte array comparator to be used to compare the 047 * octet string values. 048 */ 049 public OctetStringKeyComparator(Comparator<byte[]> comparator) 050 { 051 this.comparator = comparator; 052 } 053 054 /** 055 * Compares its two arguments for order. Returns a negative integer, 056 * zero, or a positive integer as the first argument is less than, equal 057 * to, or greater than the second. 058 * 059 * @param a the first object to be compared. 060 * @param b the second object to be compared. 061 * @return a negative integer, zero, or a positive integer as the 062 * first argument is less than, equal to, or greater than the 063 * second. 064 * @throws ClassCastException if the arguments' types prevent them from 065 * being compared by this Comparator. 066 */ 067 public int compare(ASN1OctetString a, ASN1OctetString b) 068 throws ClassCastException 069 { 070 return comparator.compare(a.value(), b.value()); 071 } 072 }