org.dromara.hutool.db.handler.PageResultHandler 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.Entity;
import org.dromara.hutool.db.PageResult;
import java.sql.ResultSet;
import java.sql.SQLException;
/**
* 分页结果集处理类 ，处理出的结果为PageResult
*
* @param Bean类型
* @author loolly
*/
public class PageResultHandler implements RsHandler> {
private static final long serialVersionUID = 1L;
private final Class beanClass;
private final PageResult pageResult;
/**
* 是否大小写不敏感
*/
private boolean caseInsensitive;
/**
* 创建 PageResultHandler
*
* @param pageResult 分页结果集空对象
* @return BeanResultHandler
*/
public static PageResultHandler of(final PageResult pageResult) {
return of(Entity.class, pageResult);
}
/**
* 创建 PageResultHandler
*
* @param Bean类型
* @param beanClass bean类
* @param pageResult 分页结果集空对象
* @return PageResultHandler
*/
public static PageResultHandler of(final Class beanClass, final PageResult pageResult) {
return new PageResultHandler<>(beanClass, pageResult);
}
/**
* 构造
* 结果集根据给定的分页对象查询数据库，填充结果
*
* @param beanClass bean类
* @param pageResult 分页结果集空对象
*/
public PageResultHandler(final Class beanClass, final PageResult pageResult) {
this.beanClass = beanClass;
this.pageResult = pageResult;
}
/**
* 设置是否忽略大小写
*
* @param caseInsensitive 是否忽略大小写
* @return this
*/
public PageResultHandler setCaseInsensitive(final boolean caseInsensitive) {
this.caseInsensitive = caseInsensitive;
return this;
}
@SuppressWarnings("unchecked")
@Override
public PageResult handle(final ResultSet rs) throws SQLException {
if (Entity.class == this.beanClass) {
return (PageResult) ResultSetUtil.toEntityList(
rs, (PageResult) pageResult, this.caseInsensitive);
}
return ResultSetUtil.toBeanList(rs, this.pageResult, this.beanClass);
}
}