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package com.easy.query.api4j.sql.impl;

import com.easy.query.api4j.sql.SQLColumnAsSelector;
import com.easy.query.core.expression.parser.core.base.ColumnAsSelector;
import com.easy.query.core.expression.parser.core.base.core.SQLAsPropertyNative;
import com.easy.query.core.util.EasyObjectUtil;

/**
 * @author xuejiaming
 * @FileName: DefaultSqSelector.java
 * @Description: 文件说明
 * @Date: 2023/2/8 00:10
 */
public class SQLColumnAsSelectorImpl implements SQLColumnAsSelector {
    private final ColumnAsSelector columnAsSelector;

    public SQLColumnAsSelectorImpl(ColumnAsSelector columnAsSelector) {
        this.columnAsSelector = columnAsSelector;
    }

    @Override
    public ColumnAsSelector getColumnAsSelector() {
        return columnAsSelector;
    }


    @Override
    public  SQLAsPropertyNative getSQLAsPropertyNative() {
        return EasyObjectUtil.typeCastNullable(columnAsSelector);
    }

    @Override
    public SQLColumnAsSelector castChain() {
        return this;
    }
}