parquet.column.impl

Class ColumnReadStoreImpl

java.lang.Object

parquet.column.impl.ColumnReadStoreImpl

All Implemented Interfaces:

ColumnReadStore

public class ColumnReadStoreImpl
extends Object
implements ColumnReadStore

Implementation of the ColumnReadStore Initializes individual columns based on schema and converter

Author:

Julien Le Dem

Constructor Summary

Constructors

Constructor and Description
ColumnReadStoreImpl(PageReadStore pageReadStore, GroupConverter recordConverter, MessageType schema)

Method Summary

Methods

Modifier and Type	Method and Description
ColumnReader	getColumnReader(ColumnDescriptor path)

Methods inherited from class java.lang.Object

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

Constructor Detail

ColumnReadStoreImpl

public ColumnReadStoreImpl(PageReadStore pageReadStore,
                   GroupConverter recordConverter,
                   MessageType schema)

Parameters:

pageReadStore - uderlying page storage

recordConverter - the user provided converter to materialize records

schema - the schema we are reading

Method Detail

getColumnReader

public ColumnReader getColumnReader(ColumnDescriptor path)

Specified by:

getColumnReader in interface ColumnReadStore

Parameters:

path - the column to read

Returns:

the column reader for that descriptor