Class

org.apache.spark.sql.execution.datasources

OutputWriter

Related Doc: package datasources

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abstract class OutputWriter extends AnyRef

OutputWriter is used together with HadoopFsRelation for persisting rows to the underlying file system. Subclasses of OutputWriter must provide a zero-argument constructor. An OutputWriter instance is created and initialized when a new output file is opened on executor side. This instance is used to persist rows to this single output file.

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TextOutputWriter
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Instance Constructors

  1. new OutputWriter()

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Abstract Value Members

  1. abstract def close(): Unit

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    Closes the OutputWriter.

    Closes the OutputWriter. Invoked on the executor side after all rows are persisted, before the task output is committed.

  2. abstract def write(row: Row): Unit

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    Persists a single row.

    Persists a single row. Invoked on the executor side. When writing to dynamically partitioned tables, dynamic partition columns are not included in rows to be written.

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  11. def initConverter(dataSchema: StructType): Unit

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  21. def writeInternal(row: InternalRow): Unit

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