org.dromara.hutool.db.handler.BeanHandler Maven / Gradle / Ivy
/*
* Copyright (c) 2013-2024 Hutool Team and hutool.cn
*
* 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.dromara.hutool.db.handler;
import org.dromara.hutool.db.handler.row.BeanRowHandler;
import java.sql.ResultSet;
import java.sql.SQLException;
/**
* Bean对象处理器,只处理第一条数据
*
* @param 处理对象类型
* @author loolly
*@since 3.1.0
*/
public class BeanHandler implements RsHandler{
private static final long serialVersionUID = -5491214744966544475L;
private final Class elementBeanType;
/**
* 创建一个 BeanHandler对象
*
* @param 处理对象类型
* @param beanType Bean类型
* @return BeanHandler对象
*/
public static BeanHandler of(final Class beanType) {
return new BeanHandler<>(beanType);
}
/**
* 构造
* @param beanType Bean类型
*/
public BeanHandler(final Class beanType) {
this.elementBeanType = beanType;
}
@Override
public E handle(final ResultSet rs) throws SQLException {
if(rs.next()){
return new BeanRowHandler<>(rs.getMetaData(), elementBeanType, true).handle(rs);
}
return null;
}
}