Package io.deephaven.qst.table

Class EmptyTable

java.lang.Object

io.deephaven.qst.table.TableBase

io.deephaven.qst.table.EmptyTable

All Implemented Interfaces:

TableOperations<TableSpec,TableSpec>, TableOperationsDefaults<TableSpec,TableSpec>, TableSchema, TableSpec

@Immutable
public abstract class EmptyTable
extends TableBase

An empty table with size() rows and 0 columns.

Nested Class Summary

Nested classes/interfaces inherited from interface io.deephaven.qst.table.TableSpec

TableSpec.Visitor<T>

Field Summary

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
EmptyTable()

Method Summary

Modifier and Type	Method	Description
static EmptyTable	of(long size)
abstract long	size()
final <T> T	walk(TableSpec.Visitor<T> visitor)

Methods inherited from class io.deephaven.qst.table.TableBase

aggAllBy, aggBy, asOfJoin, dropColumns, exactJoin, head, join, join, lazyUpdate, logic, naturalJoin, rangeJoin, reverse, select, select, selectDistinct, selectDistinct, slice, snapshot, snapshotWhen, snapshotWhen, snapshotWhen, sort, tail, toString, ungroup, update, updateBy, updateView, view, walk, where, whereIn, whereNotIn

Methods inherited from class java.lang.Object

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

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, 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

Methods inherited from interface io.deephaven.qst.table.TableSpec

depth

Constructor Details

EmptyTable

public EmptyTable()

Method Details

of

public static EmptyTable of(long size)

size

@Parameter
public abstract long size()

walk

public final <T> T walk(TableSpec.Visitor<T> visitor)