ai.rapids.cudf

类 ArrowIPCWriterOptions.Builder

java.lang.Object

ai.rapids.cudf.WriterOptions.WriterBuilder<ArrowIPCWriterOptions.Builder>

ai.rapids.cudf.ArrowIPCWriterOptions.Builder

封闭类

ArrowIPCWriterOptions

public static class ArrowIPCWriterOptions.Builder
extends WriterOptions.WriterBuilder<ArrowIPCWriterOptions.Builder>

构造器摘要

构造器

构造器和描述
Builder()

方法摘要

修饰符和类型	方法和描述
ArrowIPCWriterOptions	build()
ArrowIPCWriterOptions.Builder	withCallback(ArrowIPCWriterOptions.DoneOnGpu callback)
ArrowIPCWriterOptions.Builder	withColumnNames(String... columnNames) 添加可空列的名称。
ArrowIPCWriterOptions.Builder	withMaxChunkSize(long size)
ArrowIPCWriterOptions.Builder	withNotNullableColumnNames(String... columnNames) 添加不可空列的名称。

从类 java.lang.Object继承的方法

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细信息

Builder

public Builder()

方法详细信息

withMaxChunkSize

public ArrowIPCWriterOptions.Builder withMaxChunkSize(long size)

withCallback

public ArrowIPCWriterOptions.Builder withCallback(ArrowIPCWriterOptions.DoneOnGpu callback)

withColumnNames

public ArrowIPCWriterOptions.Builder withColumnNames(String... columnNames)

添加可空列的名称。请注意，嵌套结构体列的名称应按顺序展平。例如，

   A table with an int column and a struct column:
                   ["int_col", "struct_col":{"field_1", "field_2"}]
   output:
                   ["int_col", "struct_col", "field_1", "field_2"]

   A table with an int column and a list of non-nested type column:
                   ["int_col", "list_col":[]]
   output:
                   ["int_col", "list_col"]

   A table with an int column and a list of struct column:
                   ["int_col", "list_struct_col":[{"field_1", "field_2"}]]
   output:
                   ["int_col", "list_struct_col", "field_1", "field_2"]
 

覆盖

withColumnNames 在类 WriterOptions.WriterBuilder<ArrowIPCWriterOptions.Builder> 中

参数

columnNames - 与写入表对应的列名。

withNotNullableColumnNames

public ArrowIPCWriterOptions.Builder withNotNullableColumnNames(String... columnNames)

添加不可空列的名称。请注意，嵌套结构体列的名称应按顺序展平。例如，

   A table with an int column and a struct column:
                   ["int_col", "struct_col":{"field_1", "field_2"}]
   output:
                   ["int_col", "struct_col", "field_1", "field_2"]

   A table with an int column and a list of non-nested type column:
                   ["int_col", "list_col":[]]
   output:
                   ["int_col", "list_col"]

   A table with an int column and a list of struct column:
                   ["int_col", "list_struct_col":[{"field_1", "field_2"}]]
   output:
                   ["int_col", "list_struct_col", "field_1", "field_2"]
 

覆盖

withNotNullableColumnNames 在类 WriterOptions.WriterBuilder<ArrowIPCWriterOptions.Builder> 中

参数

columnNames - 与写入表对应的列名。

build

public ArrowIPCWriterOptions build()