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

Class ReadOnlyParquetTableLocation

java.lang.Object

com.illumon.iris.db.v2.locations.SubscriptionAggregator<TableLocation.Listener>

com.illumon.iris.db.v2.locations.AbstractTableLocation<TableKey,com.illumon.iris.db.v2.locations.local.ParquetColumnLocation<Attributes.Values>>

com.illumon.iris.db.v2.locations.local.ReadOnlyParquetTableLocation

All Implemented Interfaces:

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

public class ReadOnlyParquetTableLocation
extends AbstractTableLocation<TableKey,com.illumon.iris.db.v2.locations.local.ParquetColumnLocation<Attributes.Values>>
implements ParquetFormatTableLocation

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 class com.illumon.iris.db.v2.locations.AbstractTableLocation

cachedGroupings, NO_GROUPING_SENTINEL

Fields inherited from class com.illumon.iris.db.v2.locations.SubscriptionAggregator

subscriptions

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

Constructor Summary

Constructors

Constructor	Description
ReadOnlyParquetTableLocation(TableKey tableKey, TableLocationKey tableLocationKey, File parquetFile, io.deephaven.parquet.base.ParquetFileReader fileReader, ParquetInstructions instructions)

Method Summary

Modifier and Type	Method	Description
io.deephaven.parquet.base.util.SeekableChannelsProvider	getChannelProvider()	Get the channel provider for reading from the parquet file.
Map<String,ColumnTypeInfo>	getColumnTypes()
Table	getDataIndexImpl(String... columns)	Load the data index from the location implementaiton.
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.
List<SortPair>	getSortedColumns()	Get an ordered list of columns this location is sorted by.
boolean	hasDataIndexFor(String... columns)	Check if this location has a data index for the specified columns.
protected com.illumon.iris.db.v2.locations.local.ParquetColumnLocation<Attributes.Values>	makeColumnLocation(String name)
void	refresh()	Initialize or refresh state information.

Methods inherited from class com.illumon.iris.db.v2.locations.AbstractTableLocation

clearColumnLocations, deliverInitialSnapshot, getColumnLocation, getColumnPartition, getDataIndex, getInternalPartition, getLastModifiedTimeMillis, getSize, getStateLock, getTableKey, getVisit, handleUpdate, handleUpdate, toString, visit

Methods inherited from class com.illumon.iris.db.v2.locations.SubscriptionAggregator

activateUnderlyingDataSource, activationFailed, activationSuccessful, checkHasSubscribers, deactivateUnderlyingDataSource, matchSubscriptionToken, postActivationHook, subscribe, supportsSubscriptions, unsubscribe

Methods inherited from class java.lang.Object

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

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

getImplementationName

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

getFormat

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

append, as, clearColumnLocations, getColumnLocation, getColumnLocation, getDataIndex, getTableKey, getVisit, handleUpdate, 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

Constructor Details

ReadOnlyParquetTableLocation

public ReadOnlyParquetTableLocation(@NotNull
 TableKey tableKey,
 @NotNull
 TableLocationKey tableLocationKey,
 @NotNull
 File parquetFile,
 @NotNull
 io.deephaven.parquet.base.ParquetFileReader fileReader,
 @NotNull
 ParquetInstructions instructions)

Method Details

getParquetFile

@NotNull
public File getParquetFile()

Description copied from interface: ParquetFormatTableLocation

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

Specified by:

getParquetFile in interface ParquetFormatTableLocation

Returns:

the parquet file

refresh

public void refresh()

Description copied from interface: TableLocation

Initialize or refresh state information.

Specified by:

refresh in interface TableLocation

getGroupingColumns

public Map<String,GroupingColumnInfo> getGroupingColumns()

Description copied from interface: ParquetFormatTableLocation

Retrieve the GroupingColumnInfo for all available grouping columns.

Specified by:

getGroupingColumns in interface ParquetFormatTableLocation

Returns:

a map of column name to GroupingColumnInfo

getChannelProvider

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

Description copied from interface: ParquetFormatTableLocation

Get the channel provider for reading from the parquet file.

Specified by:

getChannelProvider in interface ParquetFormatTableLocation

Returns:

a SeekableChannelsProvider to read from the file

getSortedColumns

@NotNull
public List<SortPair> getSortedColumns()

Description copied from interface: TableLocation

Get an ordered list of columns this location is sorted by.

Specified by:

getSortedColumns in interface TableLocation

Returns:

a non-null ordered list of SortPairs

makeColumnLocation

@NotNull
protected com.illumon.iris.db.v2.locations.local.ParquetColumnLocation<Attributes.Values> makeColumnLocation(@NotNull
 String name)

Specified by:

makeColumnLocation in class AbstractTableLocation<TableKey,com.illumon.iris.db.v2.locations.local.ParquetColumnLocation<Attributes.Values>>

getColumnTypes

public Map<String,ColumnTypeInfo> getColumnTypes()

hasDataIndexFor

public boolean hasDataIndexFor(@NotNull
 String... columns)

Description copied from interface: TableLocation

Check if this location has a data index for the specified columns.

Specified by:

hasDataIndexFor in interface TableLocation

Parameters:

columns - the set of columns to check for.

Returns:

true if the table has a Data Index for the specified columns

getDataIndexImpl

@Nullable
public Table getDataIndexImpl(@NotNull
 String... columns)

Description copied from class: AbstractTableLocation

Load the data index from the location implementaiton. Implementations of this method should not perform any result caching.

Specified by:

getDataIndexImpl in class AbstractTableLocation<TableKey,com.illumon.iris.db.v2.locations.local.ParquetColumnLocation<Attributes.Values>>

Parameters:

columns - the columns to load an index for.

Returns:

the data index table, or an empty table or null if none existed.