Package io.deephaven.parquet.table

Class ParquetTableWriter.GroupingColumnWritingInfo

java.lang.Object

io.deephaven.parquet.table.ParquetTableWriter.GroupingColumnWritingInfo

Enclosing class:

ParquetTableWriter

public static class ParquetTableWriter.GroupingColumnWritingInfo
extends Object

Helper struct used to pass information about where to write the grouping files for each grouping column

Field Summary

Fields

Modifier and Type	Field	Description
final File	destFile	Destination path for writing the grouping file.
final File	metadataFilePath	File path to be added in the grouping metadata of main parquet file
final String	parquetColumnName	Parquet name of this grouping column

Constructor Summary

Constructors

Constructor	Description
GroupingColumnWritingInfo(String parquetColumnName, File metadataFilePath, File destFile)

Method Summary

Methods inherited from class java.lang.Object

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

Field Details

parquetColumnName

public final String parquetColumnName

Parquet name of this grouping column

metadataFilePath

public final File metadataFilePath

File path to be added in the grouping metadata of main parquet file

destFile

public final File destFile

Destination path for writing the grouping file. The two filenames can differ because we write grouping files to shadow file paths first and then place them at the final path once the write is complete. But the metadata should always hold the accurate path.

Constructor Details

GroupingColumnWritingInfo

public GroupingColumnWritingInfo(String parquetColumnName,
 File metadataFilePath,
 File destFile)