object Parquet
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- def reader[T](reader: ParquetReader[T])(implicit scheduler: Scheduler): Observable[T]
Reads the records from a Parquet file.
Reads the records from a Parquet file.
- T
A hinder kinded type that represents element type of the parquet file to be read.
- reader
The apache hadoop generic implementation of a parquet reader. See the following known implementations of ParquetWriter for avro and protobuf respectively: org.apache.parquet.avro.AvroParquetWriter, org.apache.parquet.proto.ProtoParquetWriter.
- scheduler
An implicit Scheduler instance to be in the scope of the call.
- returns
All the elements of type T the specified parquet file as Observable
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- def writer[T](writer: ParquetWriter[T])(implicit scheduler: Scheduler): Consumer[T, Long]
Writes records to a Parquet file.
Writes records to a Parquet file.
- T
A hinder kinded type that represents the element type of the parquet file to be written.
- writer
The apache hadoop generic implementation of a parquet writer. See the following known implementations of ParquetWriter for avro and protobuf respectively: org.apache.parquet.avro.AvroParquetWriter, org.apache.parquet.proto.ProtoParquetWriter.
- scheduler
An implicit Scheduler instance to be in the scope of the call.
- returns
A Consumer that expects records of type T to be passed and materializes to Long that represents the number of elements written.