Package io.deephaven.engine.table.impl

Class TimeTable

java.lang.Object

io.deephaven.util.referencecounting.ReferenceCounted

io.deephaven.engine.liveness.ReferenceCountedLivenessReferent

io.deephaven.engine.liveness.ReferenceCountedLivenessNode

io.deephaven.engine.liveness.LivenessArtifact

io.deephaven.engine.table.impl.LiveAttributeMap<IFACE_TYPE,IMPL_TYPE>

io.deephaven.engine.table.impl.BaseGridAttributes<Table,IMPL_TYPE>

io.deephaven.engine.table.impl.BaseTable<QueryTable>

io.deephaven.engine.table.impl.QueryTable

io.deephaven.engine.table.impl.TimeTable

All Implemented Interfaces:

TableOperations<Table,Table>, TableOperationsDefaults<Table,Table>, LogOutputAppendable, LivenessManager, LivenessNode, LivenessReferent, AttributeMap<Table>, GridAttributes<Table>, HasParentPerformanceIds, HasRefreshingSource, NotificationStepReceiver, NotificationStepSource, TableDefaults, Table, DynamicNode, NotificationQueue.Dependency, SystemicObject<Table>, LongSizedDataStructure, Serializable, Runnable

public final class TimeTable
extends QueryTable
implements Runnable, HasRefreshingSource

A TimeTable adds rows at a fixed interval with a single column named "Timestamp".

To create a TimeTable, you should use the TableTools.timeTable(java.lang.String) family of methods.

See Also:

• Serialized Form

ImplNote:

The constructor publishes this to the UpdateSourceRegistrar and thus cannot be subclassed.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	TimeTable.Builder

Nested classes/interfaces inherited from class io.deephaven.engine.table.impl.QueryTable

QueryTable.FilteredTable, QueryTable.MemoizableOperation<T extends DynamicNode & NotificationStepReceiver>, QueryTable.Operation<T extends DynamicNode & NotificationStepReceiver>

Nested classes/interfaces inherited from class io.deephaven.engine.table.impl.BaseTable

BaseTable.CopyAttributeOperation, BaseTable.ListenerImpl, BaseTable.ShiftObliviousListenerImpl, BaseTable.SnapshotControlFactory<T extends ConstructSnapshot.SnapshotControl>

Field Summary

Fields inherited from class io.deephaven.engine.table.impl.QueryTable

ENABLE_PARALLEL_SNAPSHOT, MINIMUM_PARALLEL_SELECT_ROWS, MINIMUM_PARALLEL_SNAPSHOT_ROWS, USE_CHUNKED_CROSS_JOIN, USE_DATA_INDEX_FOR_AGGREGATION, USE_DATA_INDEX_FOR_JOINS, USE_DATA_INDEX_FOR_WHERE

Fields inherited from class io.deephaven.engine.table.impl.BaseTable

definition, PRINT_SERIALIZED_UPDATE_OVERLAPS, updateGraph, VALIDATE_UPDATE_OVERLAPS

Fields inherited from interface io.deephaven.engine.table.GridAttributes

COLUMN_DESCRIPTIONS_ATTRIBUTE, DESCRIPTION_ATTRIBUTE, LAYOUT_HINTS_ATTRIBUTE, SORTABLE_COLUMNS_ATTRIBUTE

Fields inherited from interface io.deephaven.engine.table.impl.NotificationStepReceiver

NULL_NOTIFICATION_STEP

Fields inherited from interface io.deephaven.engine.table.Table

ADD_ONLY_TABLE_ATTRIBUTE, AGGREGATION_ROW_LOOKUP_ATTRIBUTE, APPEND_ONLY_TABLE_ATTRIBUTE, BARRAGE_PERFORMANCE_KEY_ATTRIBUTE, BARRAGE_SCHEMA_ATTRIBUTE, BLINK_TABLE_ATTRIBUTE, FILTERABLE_COLUMNS_ATTRIBUTE, INITIALLY_EMPTY_COALESCED_SOURCE_TABLE_ATTRIBUTE, INPUT_TABLE_ATTRIBUTE, KEY_COLUMNS_ATTRIBUTE, MERGED_TABLE_ATTRIBUTE, NON_DISPLAY_TABLE, PLUGIN_NAME, PREVIEW_PARENT_TABLE, SNAPSHOT_VIEWPORT_TYPE, SORT_REVERSE_LOOKUP_ATTRIBUTE, SORT_ROW_REDIRECTION_ATTRIBUTE, SORTED_COLUMNS_ATTRIBUTE, SYSTEMIC_TABLE_ATTRIBUTE, TEST_SOURCE_TABLE_ATTRIBUTE, TOTALS_TABLE_ATTRIBUTE, UNIQUE_KEYS_ATTRIBUTE

Fields inherited from interface io.deephaven.engine.table.impl.TableDefaults

ZERO_LENGTH_TABLE_ARRAY

Fields inherited from interface io.deephaven.api.TableOperations

AGG_BY_PRESERVE_EMPTY_DEFAULT

Fields inherited from interface io.deephaven.api.TableOperationsDefaults

ZERO_LENGTH_COLUMNNAME_ARRAY, ZERO_LENGTH_FILTER_ARRAY

Constructor Summary

Constructors

Constructor	Description
TimeTable(UpdateSourceRegistrar registrar, Clock clock, @Nullable Instant startTime, long period, boolean isBlinkTable)

Method Summary

Modifier and Type	Method	Description
protected void	destroy()	Attempt to release (destructively when necessary) resources held by this object.
String	getDescription()
static TimeTable.Builder	newBuilder()
void	run()
boolean	satisfied(long step)	Is this ancestor satisfied? Note that this method must be safe to call on any thread.
@NotNull Stream<PerformanceEntry>	sourceEntries()	Return a stream of performance entries that represent the InstrumentedTableUpdateSource which drive this table.

Methods inherited from class io.deephaven.engine.table.impl.QueryTable

aggAllBy, aggBy, aggNoMemo, apply, asOfJoin, byteColumnIterator, characterColumnIterator, checkInitiateBinaryOperation, checkInitiateOperation, columnIterator, copy, copy, copy, disableParallelWhereForThread, doubleColumnIterator, dropColumns, exactJoin, flatten, floatColumnIterator, getColumnSource, getColumnSourceMap, getColumnSources, getModifiedColumnSetForUpdates, getResult, getRowSet, getSubTable, getSubTable, head, headBy, headPct, integerColumnIterator, isFlat, join, lazyUpdate, longColumnIterator, memoizeResult, moveColumns, naturalJoin, newModifiedColumnSet, newModifiedColumnSetIdentityTransformer, newModifiedColumnSetIdentityTransformer, newModifiedColumnSetTransformer, newModifiedColumnSetTransformer, newModifiedColumnSetTransformer, newModifiedColumnSetTransformer, objectColumnIterator, objectColumnIterator, partitionBy, partitionedAggBy, propagateFlatness, rangeJoin, releaseCachedResources, renameColumns, reverse, rollup, select, selectDistinct, setFlat, setMemoizeResults, shortColumnIterator, silent, size, slice, slicePct, snapshot, snapshotWhen, sort, tail, tailBy, tailPct, tree, ungroup, update, updateBy, updateView, validateSelect, view, where, whereIn, whereNotIn, withAdditionalColumns, withDefinitionUnsafe, wouldMatch

Methods inherited from class io.deephaven.engine.table.impl.BaseTable

addParentReference, addUpdateListener, addUpdateListener, addUpdateListener, append, awaitUpdate, awaitUpdate, checkAvailableColumns, copyAttributes, copyAttributes, copySortableColumns, createSnapshotControlIfRefreshing, getDefinition, getLastNotificationStep, getNotificationQueue, getUpdateGraph, hasListeners, initializeWithSnapshot, isAddOnly, isAppendOnly, isBlink, isFailed, isRefreshing, isSystemicObject, markSystemic, notifyListeners, notifyListeners, notifyListenersOnError, parentPerformanceEntryIds, removeBlink, removeUpdateListener, removeUpdateListener, setLastNotificationStep, setRefreshing, setTotalsTable, shouldCopyAttribute, toString, withKeys, withUniqueKeys

Methods inherited from class io.deephaven.engine.table.impl.BaseGridAttributes

clearSortingRestrictions, getSortableColumns, restrictSortTo, setColumnDescriptions, setLayoutHints, setSortableColumns, withColumnDescription, withColumnDescriptions, withDescription

Methods inherited from class io.deephaven.engine.table.impl.LiveAttributeMap

copyAttributes, getAttribute, getAttributeKeys, getAttributes, getAttributes, hasAttribute, prepareReturnCopy, prepareReturnThis, published, retainingAttributes, setAttribute, setAttribute, withAttributes, withAttributes, withoutAttributes

Methods inherited from class io.deephaven.engine.liveness.LivenessArtifact

manageWithCurrentScope

Methods inherited from class io.deephaven.engine.liveness.ReferenceCountedLivenessNode

getWeakReference, initializeTransientFieldsForLiveness, onReferenceCountAtZero, tryManage, tryUnmanage, tryUnmanage

Methods inherited from class io.deephaven.engine.liveness.ReferenceCountedLivenessReferent

dropReference, tryRetainReference

Methods inherited from class io.deephaven.util.referencecounting.ReferenceCounted

decrementReferenceCount, forceReferenceCountToZero, getReferenceCountDebug, incrementReferenceCount, resetReferenceCount, tryDecrementReferenceCount, tryIncrementReferenceCount

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.deephaven.engine.table.AttributeMap

getAttribute, getAttributeKeys, getAttributes, getAttributes, hasAttribute, retainingAttributes, withAttributes, withAttributes, withoutAttributes

Methods inherited from interface io.deephaven.engine.table.GridAttributes

clearSortingRestrictions, restrictSortTo, setLayoutHints, withColumnDescription, withColumnDescriptions, withDescription

Methods inherited from interface io.deephaven.engine.liveness.LivenessManager

manage, tryManage, tryUnmanage, tryUnmanage, unmanage, unmanage

Methods inherited from interface io.deephaven.engine.liveness.LivenessReferent

dropReference, getReferentDescription, getWeakReference, retainReference, tryRetainReference

Methods inherited from interface io.deephaven.util.datastructures.LongSizedDataStructure

intSize, intSize

Methods inherited from interface io.deephaven.engine.updategraph.NotificationQueue.Dependency

getUpdateGraph

Methods inherited from interface io.deephaven.engine.table.impl.NotificationStepReceiver

initializeLastNotificationStep

Methods inherited from interface io.deephaven.engine.table.impl.TableDefaults

addUpdateListener, applyToAllBy, applyToAllBy, applyToAllBy, close, coalesce, dropColumnFormats, formatColumns, formatColumnWhere, formatRowWhere, getColumnSource, getColumnSource, hasColumns, hasColumns, headBy, isEmpty, join, meta, moveColumnsDown, moveColumnsUp, numColumns, partitionBy, renameAllColumns, renameColumns, rollup, rollup, rollup, rollup, rollup, selectDistinct, sizeForInstrumentation, snapshotWhen, snapshotWhen, tailBy, wouldMatch

Methods inherited from interface io.deephaven.api.TableOperationsDefaults

absSumBy, absSumBy, absSumBy, absSumBy, aggAllBy, aggAllBy, aggAllBy, aggBy, aggBy, aggBy, aggBy, aggBy, aggBy, aggBy, aj, aj, avgBy, avgBy, avgBy, avgBy, countBy, countBy, countBy, countBy, dropColumns, dropColumns, exactJoin, exactJoin, firstBy, firstBy, firstBy, firstBy, groupBy, groupBy, groupBy, join, join, join, lastBy, lastBy, lastBy, lastBy, lazyUpdate, maxBy, maxBy, maxBy, maxBy, medianBy, medianBy, medianBy, medianBy, minBy, minBy, minBy, minBy, naturalJoin, naturalJoin, naturalJoin, naturalJoin, naturalJoin, raj, raj, rangeJoin, select, select, selectDistinct, sort, sortDescending, stdBy, stdBy, stdBy, stdBy, sumBy, sumBy, sumBy, sumBy, ungroup, ungroup, ungroup, ungroup, update, updateBy, updateBy, updateBy, updateBy, updateBy, updateBy, updateBy, updateBy, updateView, varBy, varBy, varBy, varBy, view, wavgBy, wavgBy, wavgBy, wavgBy, where, whereIn, whereNotIn, wsumBy, wsumBy, wsumBy, wsumBy

Constructor Details

TimeTable

public TimeTable(UpdateSourceRegistrar registrar,
 Clock clock,
 @Nullable
 @Nullable Instant startTime,
 long period,
 boolean isBlinkTable)

Method Details

newBuilder

public static TimeTable.Builder newBuilder()

satisfied

public boolean satisfied(long step)

Description copied from interface: NotificationQueue.Dependency

Is this ancestor satisfied? Note that this method must be safe to call on any thread.

Specified by:

satisfied in interface NotificationQueue.Dependency

Overrides:

satisfied in class BaseTable<QueryTable>

Parameters:

step - The step for which we are testing satisfaction

Returns:

Whether the dependency is satisfied on step (and will not fire subsequent notifications)

run

@TestUseOnly
public void run()

Specified by:

run in interface Runnable

getDescription

public String getDescription()

Specified by:

getDescription in interface Table

Overrides:

getDescription in class BaseTable<QueryTable>

destroy

@OverridingMethodsMustInvokeSuper
protected void destroy()

Description copied from class: ReferenceCountedLivenessReferent

Attempt to release (destructively when necessary) resources held by this object. This may render the object unusable for subsequent operations. Implementations should be sure to call super.destroy().

This is intended to only ever be used as a side effect of decreasing the reference count to 0.

Overrides:

destroy in class BaseTable<QueryTable>

sourceEntries

@NotNull
public @NotNull Stream<PerformanceEntry> sourceEntries()

Description copied from interface: HasRefreshingSource

Return a stream of performance entries that represent the InstrumentedTableUpdateSource which drive this table.

If no such sources, exist, then an empty stream is returned.

Specified by:

sourceEntries in interface HasRefreshingSource

Returns:

a stream of performance entries for this node in the graph