org.tinygroup.tinysqldsl.extend.MysqlSelect Maven / Gradle / Ivy
/**
* Copyright (c) 1997-2013, www.tinygroup.org ([email protected]).
*
* Licensed under the GPL, Version 3.0 (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.gnu.org/licenses/gpl.html
*
* 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.tinygroup.tinysqldsl.extend;
import org.tinygroup.tinysqldsl.Select;
import org.tinygroup.tinysqldsl.base.Table;
import org.tinygroup.tinysqldsl.formitem.FromItemList;
import org.tinygroup.tinysqldsl.select.Limit;
import org.tinygroup.tinysqldsl.selectitem.AllColumns;
import org.tinygroup.tinysqldsl.selectitem.SelectItem;
/**
* mysql数据库相关的查询
*
* @author renhui
*
*/
public class MysqlSelect extends Select {
public MysqlSelect() {
super();
}
public static MysqlSelect select(SelectItem... selectItems) {
MysqlSelect select = new MysqlSelect();
select.getPlainSelect().addSelectItems(selectItems);
return select;
}
public static MysqlSelect selectFrom(Table... tables) {
MysqlSelect select = new MysqlSelect();
select.getPlainSelect().addSelectItems(new AllColumns());
select.getPlainSelect().setFromItem(new FromItemList(tables));
return select;
}
public MysqlSelect limit(int start, int limit) {
plainSelect.setLimit(new Limit(start, limit, false, false));
return this;
}
/**
* 生成的sql语句 start和limit用？代替
*
* @param limit
* @return
*/
public MysqlSelect limit(Limit limit) {
plainSelect.setLimit(limit);
return this;
}
@Override
protected Select newSelect() {
return new MysqlSelect();
}
}