org.apache.parquet.column.impl

Class ColumnReadStoreImpl

java.lang.Object

org.apache.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

Constructor Summary

Constructors

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

Method Summary

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,
                           String createdBy)

Parameters:

pageReadStore - underlying page storage

recordConverter - the user provided converter to materialize records

schema - the schema we are reading

createdBy - writer version string from the Parquet file being read

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