Package com.illumon.iris.db.v2.locations

Interface ParquetFormatTableLocation

All Superinterfaces:

com.fishlib.base.log.LogOutputAppendable, NamedImplementation, TableLocation, TableLocationKey, TableLocationState

All Known Implementing Classes:

ReadOnlyParquetTableLocation

public interface ParquetFormatTableLocation
extends TableLocation

TableLocation sub-interface for table locations stored in the Apache Parquet columnar format.

Nested Class Summary

Nested classes/interfaces inherited from interface com.illumon.iris.db.v2.locations.TableLocation

TableLocation.Format, TableLocation.Listener

Nested classes/interfaces inherited from interface com.illumon.iris.db.v2.locations.TableLocationKey

TableLocationKey.ComparatorImpl, TableLocationKey.KeyedObjectKeyImpl<VALUE_TYPE>, TableLocationKey.SelfKeyedObjectKeyImpl<VALUE_TYPE extends TableLocationKey>

Field Summary

Fields inherited from interface com.illumon.iris.db.v2.locations.TableLocationKey

COMPARATOR, NULL_PARTITION

Fields inherited from interface com.illumon.iris.db.v2.locations.TableLocationState

NULL_SIZE, NULL_TIME, REMOVE_SIZE

Method Summary

Modifier and Type	Method	Description
io.deephaven.parquet.base.util.SeekableChannelsProvider	getChannelProvider()	Get the channel provider for reading from the parquet file.
default TableLocation.Format	getFormat()	Get the format that was used to persist this table location.
Map<String,GroupingColumnInfo>	getGroupingColumns()	Retrieve the GroupingColumnInfo for all available grouping columns.
File	getParquetFile()	Get the full path to the Parquet file for this location.

Methods inherited from interface com.illumon.util.type.NamedImplementation

getImplementationName

Methods inherited from interface com.illumon.iris.db.v2.locations.TableLocation

append, as, getColumnLocation, getColumnLocation, getDataIndex, getSortedColumns, getTableKey, getVisit, hasDataIndexFor, refresh, subscribe, supportsSubscriptions, toGenericString, toStringDetailed, toStringHelper, unsubscribe, visit

Methods inherited from interface com.illumon.iris.db.v2.locations.TableLocationKey

getColumnPartition, getInternalPartition, writeTo

Methods inherited from interface com.illumon.iris.db.v2.locations.TableLocationState

copyStateValuesTo, getLastModifiedTimeMillis, getSize, getSizeStr, getStateLock, writeStateValuesTo

Method Details

getFormat

@FinalDefault
@NotNull
default TableLocation.Format getFormat()

Description copied from interface: TableLocation

Get the format that was used to persist this table location.

Specified by:

getFormat in interface TableLocation

Returns:

The format for this table location

getGroupingColumns

Map<String,GroupingColumnInfo> getGroupingColumns()

Retrieve the GroupingColumnInfo for all available grouping columns.

Returns:

a map of column name to GroupingColumnInfo

getParquetFile

File getParquetFile()

Get the full path to the Parquet file for this location.

Returns:

the parquet file

getChannelProvider

io.deephaven.parquet.base.util.SeekableChannelsProvider getChannelProvider()

Get the channel provider for reading from the parquet file.

Returns:

a SeekableChannelsProvider to read from the file