无法将beamSql数据写入BigQuery

Question

我试图将beamSql数据写入BigQuery，如下所示：

final_out1.apply(BigQueryIO.<TableRow>Write
    .named("Write")
    .to("my-project:data_id1.tables_test")
    .withSchema(schema)
    .withWriteDisposition(BigQueryIO.Write.WriteDisposition.WRITE_TRUNCATE))
    .withCreateDisposition(BigQueryIO.Write.CreateDisposition.CREATE_IF_NEEDED));

我在named（）上遇到错误，错误：

The method named(String) is undefined for the type BigQueryIO.Write

知道这意味着什么吗？

修改 我定义的格式函数：

final_out1.apply(BigQueryIO.<TableRow>write()
    .withSchema(schema)
    .to("beta-194409:data_id1.tables_test"));
    /*  .withFormatFunction(fin -> new TableRow().
                                 set("SalesComponent", fin.getSalesComponent()).
                                 set("DuetoValue", fin.getDuetoValue()).
                                 set("ModelIteration", fin.getMo//delIteration()))  */
    //.withWriteDisposition(BigQueryIO.Write.WriteDisposition.WRITE_TRUNCATE).withCreateDisposition(BigQueryIO.Write.CreateDisposition.CREATE_IF_NEEDED)); 

Answer 1

类named()没有这样的方法BigQueryIO.Write所以这个错误是有道理的。

您可以将变换名称指定为apply()方法的第一个参数。

final_out1.apply("Write", BigQueryIO.<TableRow>.write()
    .to("my-project:data_id1.tables_test")
    .withSchema(schema)
    .withWriteDisposition(BigQueryIO.Write.WriteDisposition.WRITE_TRUNCATE))
    .withCreateDisposition(BigQueryIO.Write.CreateDisposition.CREATE_IF_NEEDED));

注意：使用BigQueryIO.write()代替BigQueryIO.Write。