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                ## SQLManagerExtend BeetlSQL提供了還能擴展使用,在3.5版本后,增加了SQLManagerExtend,提供了常見的簡單擴展BeetlSQL功能,默認實現是: ```java public class SQLManagerExtend { EnumExtend enumExtend = new EnumExtend(); ParaExtend paraExtend = new ParaExtend(); public SQLManagerExtend(){ } public ParaExtend getParaExtend(){ return paraExtend; } public EnumExtend getEnumExtend(){ return enumExtend; } } ``` EnumExtend用于實現枚舉處理,默認使用EnumKit轉化枚舉到數據庫的映射 ```java public class EnumExtend { public Enum getEnumByValue(Class c, Object value) { return EnumKit.getEnumByValue(c,value); } public Object getValueByEnum(Object en) { return EnumKit.getValueByEnum(en); } } ``` ParaExtend用于為BeetlSQL執行sql提供額外的參數,如租戶id,定義如下 ```java public class ParaExtend { public Map morePara(ExecuteContext ctx){ return null; } } ``` 如果返回Map不為null,則beetlsql會取出map中的鍵值對,放入beetlsql的參數中。 你可以實現自己的SQLManagerExtend以及EnumExtend,ParaExtend類 ```java sqlManager.setSqlManagerExtend(new YourSQLManagerExtend()) //or sqlManagerBuilder.setSqlManagerExtend(new YourSQLManagerExtend()) ```
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