| /* |
| * 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.commons.dbutils.handlers; |
| |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.apache.commons.dbutils.ResultSetHandler; |
| |
| /** |
| * Abstract class that simplify development of {@code ResultSetHandler} |
| * classes that convert {@code ResultSet} into {@code List}. |
| * |
| * @param <T> the target List generic type |
| * @see org.apache.commons.dbutils.ResultSetHandler |
| */ |
| public abstract class AbstractListHandler<T> implements ResultSetHandler<List<T>> { |
| /** |
| * Whole {@code ResultSet} handler. It produce {@code List} as |
| * result. To convert individual rows into Java objects it uses |
| * {@code handleRow(ResultSet)} method. |
| * |
| * @see #handleRow(ResultSet) |
| * @param rs {@code ResultSet} to process. |
| * @return a list of all rows in the result set |
| * @throws SQLException error occurs |
| */ |
| @Override |
| public List<T> handle(final ResultSet rs) throws SQLException { |
| final List<T> rows = new ArrayList<>(); |
| while (rs.next()) { |
| rows.add(this.handleRow(rs)); |
| } |
| return rows; |
| } |
| |
| /** |
| * Row handler. Method converts current row into some Java object. |
| * |
| * @param rs {@code ResultSet} to process. |
| * @return row processing result |
| * @throws SQLException error occurs |
| */ |
| protected abstract T handleRow(ResultSet rs) throws SQLException; |
| } |