/*
* Copyright 2004-2015 the Seasar Foundation and the Others.
*
* Licensed 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.seasar.extension.jdbc.handler;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
import org.seasar.extension.jdbc.EntityMapper;
import org.seasar.extension.jdbc.MappingContext;
import org.seasar.extension.jdbc.ResultSetHandler;
import org.seasar.extension.jdbc.ValueType;
/**
* Beanのリストを返すSQL自動生成用の {@link ResultSetHandler}です。
*
* @author higa
*/
public class BeanListAutoResultSetHandler extends
AbstractBeanAutoResultSetHandler {
/**
* リミットです。
*/
protected int limit;
/**
* {@link BeanListAutoResultSetHandler}を作成します。
*
* @param valueTypes
* 値タイプの配列
* @param entityMapper
* エンティティマッパー
* @param sql
* SQL
*/
public BeanListAutoResultSetHandler(ValueType[] valueTypes,
EntityMapper entityMapper, String sql) {
this(valueTypes, entityMapper, sql, 0);
}
/**
* {@link BeanListAutoResultSetHandler}を作成します。
*
* @param valueTypes
* 値タイプの配列
* @param entityMapper
* エンティティマッパー
* @param sql
* SQL
* @param limit
* リミット
*/
public BeanListAutoResultSetHandler(ValueType[] valueTypes,
EntityMapper entityMapper, String sql, int limit) {
super(valueTypes, entityMapper, sql);
this.limit = limit;
}
public Object handle(ResultSet rs) throws SQLException {
List<Object> list = new ArrayList<Object>(100);
MappingContext mappingContext = new MappingContext();
for (int i = 0; (limit <= 0 || i < limit) && rs.next(); i++) {
Object entity = createEntity(rs, mappingContext);
if (entity != null) {
list.add(entity);
}
}
return list;
}
}