Package org.apache.parquet.hadoop.api

Class DelegatingWriteSupport<T>

  • Type Parameters:
    T - the Java class of objects written with this WriteSupport
    public class DelegatingWriteSupport<T>
extends WriteSupport<T>
    Helps composing write supports

    • Constructor Detail

      • DelegatingWriteSupport

        public DelegatingWriteSupport​(WriteSupport<T> delegate)

    • Method Detail

      • init

        public WriteSupport.WriteContext init​(org.apache.hadoop.conf.Configuration configuration)
        Description copied from class: WriteSupport
        called first in the task
        Specified by:
        init in class WriteSupport<T>
        Parameters:
        configuration - the job's configuration
        Returns:
        the information needed to write the file

      • prepareForWrite

        public void prepareForWrite​(RecordConsumer recordConsumer)
        Description copied from class: WriteSupport
        This will be called once per row group
        Specified by:
        prepareForWrite in class WriteSupport<T>
        Parameters:
        recordConsumer - the recordConsumer to write to

      • write

        public void write​(T record)
        Description copied from class: WriteSupport
        called once per record
        Specified by:
        write in class WriteSupport<T>
        Parameters:
        record - one record to write to the previously provided record consumer

      • getName

        public String getName()
        Description copied from class: WriteSupport
        Called to get a name to identify the WriteSupport object model. If not null, this is added to the file footer metadata.

        Defining this method will be required in a future API version.

        Overrides:
        getName in class WriteSupport<T>
        Returns:
        a String name for file metadata.