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 */ 020 package org.apache.directory.server.core.interceptor.context; 021 022 023 import org.apache.directory.server.core.CoreSession; 024 import org.apache.directory.server.i18n.I18n; 025 import org.apache.directory.shared.ldap.name.DN; 026 027 028 /** 029 * An EmptySuffix context used for Interceptors. It contains no data, and mask 030 * the DN in AbstractOperationContext 031 * 032 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> 033 * @version $Rev$, $Date$ 034 */ 035 public abstract class EmptyOperationContext extends AbstractOperationContext 036 { 037 /** 038 * Creates a new instance of EmptyOperationContext. 039 */ 040 public EmptyOperationContext( CoreSession session ) 041 { 042 super( session, DN.EMPTY_DN ); 043 } 044 045 046 /** 047 * Set the context DN 048 * 049 * @param dn The DN to set 050 */ 051 public void setDn( DN dn ) 052 { 053 if ( dn.equals( DN.EMPTY_DN ) ) 054 { 055 return; 056 } 057 058 throw new UnsupportedOperationException( I18n.err( I18n.ERR_324 ) ); 059 } 060 061 062 /** 063 * @see Object#toString() 064 */ 065 public String toString() 066 { 067 return "EmptyOperationContext"; 068 } 069 }