Package io.deephaven.web.client.api

Class JsColumnStatistics

java.lang.Object

io.deephaven.web.client.api.JsColumnStatistics

@TsInterface
@TsName(name="ColumnStatistics",
        namespace="dh")
public class JsColumnStatistics
extends Object

Represents statistics for a given table column. Statistics are exposed via getStatisticsMap(), keyed by display name (for example, "COUNT" or "AVG"). For each statistic name, getType(String) returns the expected type name for formatting purposes, or null to indicate that the column's formatting should be used.

If present, getUniqueValues() returns a map of unique values (as strings) to their occurrence counts.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	JsColumnStatistics.StatType

Constructor Summary

Constructors

Constructor	Description
JsColumnStatistics(TableData data)

Method Summary

Modifier and Type	Method	Description
elemental2.core.JsMap<String,Object>	getStatisticsMap()	Gets a map of each statistic's display name to its value.
String	getType(String name)	Gets the type of formatting that should be used for given statistic.
elemental2.core.JsMap<String,Double>	getUniqueValues()	Gets a map of each unique value's name to the count of how many times it occurred in the column.

Methods inherited from class java.lang.Object

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

Constructor Details

JsColumnStatistics

@JsIgnore
public JsColumnStatistics(TableData data)

Method Details

getType

@JsMethod
public String getType(String name)

Gets the type of formatting that should be used for given statistic. A null return value means that the column formatting should be used.

Parameters:

name - the display name of the statistic

Returns:

String

getStatisticsMap

@JsProperty
public elemental2.core.JsMap<String,Object> getStatisticsMap()

Gets a map of each statistic's display name to its value.

Returns:

Map of String and Object

getUniqueValues

@JsProperty
public elemental2.core.JsMap<String,Double> getUniqueValues()

Gets a map of each unique value's name to the count of how many times it occurred in the column. This map will be empty for tables containing more than 19 unique values.

Returns:

Map of String double