Package io.deephaven.engine.table.impl

Class DeferredViewTable

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<IMPL_TYPE>

io.deephaven.engine.table.impl.UncoalescedTable<IMPL_TYPE>

io.deephaven.engine.table.impl.RedefinableTable<DeferredViewTable>

io.deephaven.engine.table.impl.DeferredViewTable

All Implemented Interfaces:

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

public class DeferredViewTable
extends RedefinableTable<DeferredViewTable>

An uncoalesced table with view and where operations to be applied after UncoalescedTable.coalesce() is forced.

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	DeferredViewTable.TableReference	The table reference hides the table underlying table from us.

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

Modifier and Type	Field	Description
protected final String[]	deferredDropColumns
protected final WhereFilter[]	deferredFilters
protected final SelectColumn[]	deferredViewColumns

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

definition, description, 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, 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, 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
DeferredViewTable(@NotNull TableDefinition definition, @NotNull String description, @NotNull DeferredViewTable.TableReference tableReference, @Nullable String[] deferredDropColumns, @Nullable SelectColumn[] deferredViewColumns, @Nullable WhereFilter[] deferredFilters)

Method Summary

Modifier and Type	Method	Description
protected DeferredViewTable	copy()	Create a copy of this with initially-shared LiveAttributeMap.mutableAttributes.
protected Table	doCoalesce()	Produce the actual coalesced result table, suitable for caching.
protected Table	redefine(TableDefinition newDefinition)	Redefine this table with a subset of its current columns.
protected Table	redefine(TableDefinition newDefinitionExternal, TableDefinition newDefinitionInternal, SelectColumn[] viewColumns)	Redefine this table with a subset of its current columns, with a potentially-differing definition to present to external interfaces and one or more select columns to apply.
Table	selectDistinct(Collection<? extends Selectable> columns)
Table	where(Filter filter)

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

dropColumns, renameColumns, updateView, view

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

addUpdateListener, addUpdateListener, addUpdateListener, addUpdateListenerUncoalesced, addUpdateListenerUncoalesced, aggAllBy, aggBy, apply, asOfJoin, awaitUpdate, awaitUpdate, byteColumnIterator, characterColumnIterator, coalesce, columnIterator, doubleColumnIterator, exactJoin, flatten, floatColumnIterator, getCoalesced, getColumnSource, getColumnSourceMap, getColumnSources, getRowSet, getSubTable, head, headBy, headPct, integerColumnIterator, isFlat, join, lazyUpdate, longColumnIterator, moveColumns, naturalJoin, objectColumnIterator, partitionBy, partitionedAggBy, rangeJoin, removeUpdateListener, removeUpdateListener, removeUpdateListenerUncoalesced, reverse, rollup, select, setCoalesced, shortColumnIterator, size, sizeForInstrumentation, slice, slicePct, snapshot, snapshotWhen, sort, tail, tailBy, tailPct, tree, ungroup, update, updateBy, whereIn, whereNotIn, wouldMatch

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

addParentReference, append, checkAvailableColumns, copyAttributes, copyAttributes, copySortableColumns, createSnapshotControlIfRefreshing, destroy, getDefinition, getDescription, getLastNotificationStep, getNotificationQueue, getUpdateGraph, hasListeners, initializeWithSnapshot, isAddOnly, isAppendOnly, isBlink, isFailed, isRefreshing, isSystemicObject, markSystemic, notifyListeners, notifyListeners, notifyListenersOnError, removeBlink, satisfied, 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

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

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, dropColumnFormats, formatColumns, formatColumnWhere, formatRowWhere, getColumnSource, getColumnSource, hasColumns, hasColumns, headBy, isEmpty, join, meta, moveColumnsDown, moveColumnsUp, numColumns, partitionBy, releaseCachedResources, renameAllColumns, renameColumns, rollup, rollup, rollup, rollup, rollup, selectDistinct, 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, 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

Field Details

deferredDropColumns

protected final String[] deferredDropColumns

deferredViewColumns

protected final SelectColumn[] deferredViewColumns

deferredFilters

protected final WhereFilter[] deferredFilters

Constructor Details

DeferredViewTable

public DeferredViewTable(@NotNull
 @NotNull TableDefinition definition,
 @NotNull
 @NotNull String description,
 @NotNull
 @NotNull DeferredViewTable.TableReference tableReference,
 @Nullable
 @Nullable String[] deferredDropColumns,
 @Nullable
 @Nullable SelectColumn[] deferredViewColumns,
 @Nullable
 @Nullable WhereFilter[] deferredFilters)

Method Details

where

public Table where(Filter filter)

Specified by:

where in interface TableOperations<Table,Table>

Overrides:

where in class UncoalescedTable<DeferredViewTable>

doCoalesce

protected Table doCoalesce()

Description copied from class: UncoalescedTable

Produce the actual coalesced result table, suitable for caching.

Note that if this table must have listeners registered, etc, setting these up is the implementation's responsibility.

Also note that the implementation should copy attributes, as in copyAttributes(resultTable, CopyAttributeOperation.Coalesce).

Specified by:

doCoalesce in class UncoalescedTable<DeferredViewTable>

Returns:

The coalesced result table, suitable for caching

selectDistinct

public Table selectDistinct(Collection<? extends Selectable> columns)

Specified by:

selectDistinct in interface TableOperations<Table,Table>

Overrides:

selectDistinct in class UncoalescedTable<DeferredViewTable>

copy

protected DeferredViewTable copy()

Description copied from class: LiveAttributeMap

Create a copy of this with initially-shared LiveAttributeMap.mutableAttributes.

Specified by:

copy in class LiveAttributeMap<Table,DeferredViewTable>

redefine

protected Table redefine(TableDefinition newDefinition)

Description copied from class: RedefinableTable

Redefine this table with a subset of its current columns.

Specified by:

redefine in class RedefinableTable<DeferredViewTable>

Parameters:

newDefinition - A TableDefinition with a subset of this RedefinableTable's ColumnDefinitions.

Returns:

redefine

protected Table redefine(TableDefinition newDefinitionExternal,
 TableDefinition newDefinitionInternal,
 SelectColumn[] viewColumns)

Description copied from class: RedefinableTable

Redefine this table with a subset of its current columns, with a potentially-differing definition to present to external interfaces and one or more select columns to apply.

Specified by:

redefine in class RedefinableTable<DeferredViewTable>

Parameters:

newDefinitionExternal - A TableDefinition that represents the results of redefine(newDefinitionInternal).view(viewColumns).

newDefinitionInternal - A TableDefinition with a subset of this RedefinableTable's ColumnDefinitions.

viewColumns - A set of SelectColumns to apply in order to transform a table with newDefinitionInternal to a table with newDefinitionExternal.

Returns: