001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, 013 * software distributed under the License is distributed on an 014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 015 * KIND, either express or implied. See the License for the 016 * specific language governing permissions and limitations 017 * under the License. 018 * 019 */ 020package org.apache.directory.api.ldap.model.schema.comparators; 021 022 023import org.apache.directory.api.ldap.model.schema.normalizers.CachingNormalizer; 024import org.apache.directory.api.ldap.model.schema.normalizers.DeepTrimToLowerNormalizer; 025 026 027/** 028 * A comparator that compare two Strings after having trimmed them on left and right, 029 * and replaced any contiguous spaces in the middle by 1 single space. The Strings are compared 030 * case insensitive. We also keep a cache 031 * 032 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 033 */ 034public class DeepTrimToLowerCachingNormalizingComparator extends NormalizingComparator 035{ 036 /** The serial version UID */ 037 private static final long serialVersionUID = 2L; 038 039 040 /** 041 * Creates a new instance of DeepTrimToLowerCachingNormalizingComparator. 042 * 043 * @param oid The Comparator's OID 044 */ 045 @SuppressWarnings( 046 { "rawtypes", "unchecked" }) 047 public DeepTrimToLowerCachingNormalizingComparator( String oid ) 048 { 049 super( oid, new CachingNormalizer( new DeepTrimToLowerNormalizer( oid ), 10 ), 050 new ComparableComparator( oid ) ); 051 } 052}