001/**
002 * Copyright (c) 2022-2023, Mybatis-Flex (fuhai999@gmail.com).
003 * <p>
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 * <p>
008 * http://www.apache.org/licenses/LICENSE-2.0
009 * <p>
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package com.mybatisflex.core.query;
017
018import com.mybatisflex.core.dialect.IDialect;
019
020import java.io.Serializable;
021import java.util.Objects;
022
023/**
024 * 查询列，描述的是一张表的字段
025 */
026public class QueryTable implements Serializable {
027
028    protected String name;
029    protected String alias;
030
031    public QueryTable() {
032    }
033
034    public QueryTable(String name) {
035        this.name = name;
036    }
037
038    public QueryTable(String table, String alias) {
039        this.name = table;
040        this.alias = alias;
041    }
042
043    public String getName() {
044        return name;
045    }
046
047    public void setName(String name) {
048        this.name = name;
049    }
050
051
052    public QueryTable as(String alias) {
053        this.alias = alias;
054        return this;
055    }
056
057    boolean isSameTable(QueryTable table) {
058        return table != null && Objects.equals(name, table.name);
059    }
060
061
062    public String toSql(IDialect dialect) {
063        return dialect.wrap(name) + WrapperUtil.buildAsAlias(dialect.wrap(alias));
064    }
065
066    @Override
067    public String toString() {
068        return "QueryTable{" +
069                "name='" + name + '\'' +
070                ", alias='" + alias + '\'' +
071                '}';
072    }
073}