package cn.iocoder.yudao.module.iot.framework.tdengine.core;
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import cn.hutool.core.util.StrUtil;
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import lombok.AllArgsConstructor;
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import lombok.Data;
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import lombok.NoArgsConstructor;
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import java.util.Locale;
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/**
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* TDEngine 表字段
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*/
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@Data
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@NoArgsConstructor
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@AllArgsConstructor
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public class TDengineTableField {
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/**
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* 字段名 - TDengine 默认 ts 字段，默认会被 TDengine 创建
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*/
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public static final String FIELD_TS = "ts";
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public static final String TYPE_TINYINT = "TINYINT";
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public static final String TYPE_INT = "INT";
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public static final String TYPE_FLOAT = "FLOAT";
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public static final String TYPE_DOUBLE = "DOUBLE";
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public static final String TYPE_BOOL = "BOOL";
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public static final String TYPE_NCHAR = "NCHAR";
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public static final String TYPE_VARCHAR = "VARCHAR";
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public static final String TYPE_TIMESTAMP = "TIMESTAMP";
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/**
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* 字段长度 - VARCHAR 默认长度
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*/
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public static final int LENGTH_VARCHAR = 1024;
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/**
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* 注释 - TAG 字段
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*/
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public static final String NOTE_TAG = "TAG";
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/**
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* 字段名
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*/
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private String field;
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/**
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* 字段类型
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*/
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private String type;
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/**
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* 字段长度
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*/
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private Integer length;
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/**
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* 注释
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*/
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private String note;
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public TDengineTableField(String field, String type) {
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this.field = field;
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this.type = type;
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}
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/**
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* 构建字段名：TDengine 默认会将字段名转为小写，需要和建表、写入、查询保持一致。
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* 例如：PT -> pt，PfT -> pf_t。
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*/
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public static String buildFieldName(String field) {
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if (StrUtil.isBlank(field)) {
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return field;
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}
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return StrUtil.toUnderlineCase(field).toLowerCase(Locale.ROOT);
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}
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}
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