Package io.deephaven.enterprise.locations.local

Class SnapshotBackedTableLocation<LOCATION_TYPE extends AbstractTableLocation>

java.lang.Object

io.deephaven.engine.table.impl.locations.impl.SubscriptionAggregator<TableLocation.Listener>

io.deephaven.engine.table.impl.locations.impl.AbstractTableLocation

io.deephaven.enterprise.locations.local.SnapshotBackedTableLocation<LOCATION_TYPE>

Type Parameters:

LOCATION_TYPE -

All Implemented Interfaces:

LogOutputAppendable, TableLocation, TableLocationState, NamedImplementation

public class SnapshotBackedTableLocation<LOCATION_TYPE extends AbstractTableLocation>
extends AbstractTableLocation

A TableLocation backed by a TableLocationMetadataIndex.TableLocationSnapshot that does not refresh and tries to avoid creating the actual location until it is truly needed.

Nested Class Summary

Nested classes/interfaces inherited from interface io.deephaven.engine.table.impl.locations.TableLocation

TableLocation.Listener

Field Summary

Fields inherited from class io.deephaven.engine.table.impl.locations.impl.SubscriptionAggregator

subscriptions

Fields inherited from interface io.deephaven.engine.table.impl.locations.TableLocationState

NULL_SIZE, NULL_TIME

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	SnapshotBackedTableLocation(@NotNull TableKey tableKey, @NotNull TableLocationKey tableLocationKey, boolean supportsSubscriptions, io.deephaven.shadow.enterprise.com.illumon.iris.db.v2.locations.local.TableLocationMetadataIndex.LocationSnapshot snapshot, @NotNull Supplier<LOCATION_TYPE> locationFactory)

Method Summary

Modifier and Type	Method	Description
protected @NotNull ColumnLocation	makeColumnLocation(@NotNull String name)
void	refresh()

Methods inherited from class io.deephaven.engine.table.impl.locations.impl.AbstractTableLocation

clearColumnLocations, deliverInitialSnapshot, getColumnLocation, getKey, getLastModifiedTimeMillis, getRowSet, getSize, getStateLock, getTableKey, handleUpdate, handleUpdate, toString

Methods inherited from class io.deephaven.engine.table.impl.locations.impl.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 io.deephaven.util.type.NamedImplementation

getImplementationName

Methods inherited from interface io.deephaven.engine.table.impl.locations.TableLocation

append, subscribe, supportsSubscriptions, toGenericString, toStringDetailed, toStringHelper, unsubscribe

Methods inherited from interface io.deephaven.engine.table.impl.locations.TableLocationState

copyStateValuesTo

Constructor Details

SnapshotBackedTableLocation

protected SnapshotBackedTableLocation(@NotNull
 @NotNull TableKey tableKey,
 @NotNull
 @NotNull TableLocationKey tableLocationKey,
 boolean supportsSubscriptions,
 @NotNull
 io.deephaven.shadow.enterprise.com.illumon.iris.db.v2.locations.local.TableLocationMetadataIndex.LocationSnapshot snapshot,
 @NotNull
 @NotNull Supplier<LOCATION_TYPE> locationFactory)

Parameters:

tableKey - Table key for the table this location belongs to

tableLocationKey - Table location key that identifies this location

supportsSubscriptions - Whether subscriptions are to be supported

Method Details

makeColumnLocation

@NotNull
protected @NotNull ColumnLocation makeColumnLocation(@NotNull
 @NotNull String name)

Specified by:

makeColumnLocation in class AbstractTableLocation

refresh

public void refresh()