Package io.deephaven.qst.table

Class HeadTable

java.lang.Object

io.deephaven.qst.table.TableBase

io.deephaven.qst.table.HeadTable

All Implemented Interfaces:

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

@Immutable
public abstract class HeadTable
extends TableBase
implements SingleParentTable

See Also:

• TableOperations.head(long)

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
HeadTable()

Method Summary

Modifier and Type	Method	Description
static HeadTable	of(TableSpec parent, long size)
abstract TableSpec	parent()
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.TableOperations

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

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

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

walk

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

depth, logic

Constructor Details

HeadTable

public HeadTable()

Method Details

of

public static HeadTable of(TableSpec parent,
 long size)

parent

@Parameter
public abstract TableSpec parent()

Specified by:

parent in interface SingleParentTable

size

@Parameter
public abstract long size()

walk

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

Specified by:

walk in interface TableSpec