| /* |
| * 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 |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.directory.server.core.partition.impl.btree; |
| |
| |
| import javax.naming.NamingException; |
| |
| |
| /** |
| * TupleBrowser interface used to abstract |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| * @version $Rev$ |
| */ |
| public interface TupleBrowser |
| { |
| /** |
| * Gets the next value deemed greater than the last using the key |
| * comparator. |
| * |
| * @param tuple the tuple to populate with a key/value pair |
| * @return true if there was a next that was populated or false otherwise |
| * @throws NamingException @todo |
| */ |
| boolean getNext( Tuple tuple ) throws NamingException; |
| |
| |
| /** |
| * Gets the previous value deemed greater than the last using the key |
| * comparator. |
| * |
| * @param tuple the tuple to populate with a key/value pair |
| * @return true if there was a previous value populated or false otherwise |
| * @throws NamingException @todo |
| */ |
| boolean getPrevious( Tuple tuple ) throws NamingException; |
| } |