| /** |
| * Copyright 2010 The Apache Software Foundation |
| * |
| * 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.hadoop.hbase.client; |
| |
| import java.io.Closeable; |
| import java.io.IOException; |
| |
| /** |
| * Interface for client-side scanning. |
| * Go to {@link HTable} to obtain instances. |
| */ |
| public interface ResultScanner extends Closeable, Iterable<Result> { |
| |
| /** |
| * Grab the next row's worth of values. The scanner will return a Result. |
| * @return Result object if there is another row, null if the scanner is |
| * exhausted. |
| * @throws IOException e |
| */ |
| public Result next() throws IOException; |
| |
| /** |
| * @param nbRows number of rows to return |
| * @return Between zero and <param>nbRows</param> Results |
| * @throws IOException e |
| */ |
| public Result [] next(int nbRows) throws IOException; |
| |
| /** |
| * Closes the scanner and releases any resources it has allocated |
| */ |
| public void close(); |
| } |