Package com.illumon.iris.db.v2.by

Class FormulaAggregationFactory

java.lang.Object

com.illumon.iris.db.v2.by.FormulaAggregationFactory

All Implemented Interfaces:

AggregationContextFactory

public class FormulaAggregationFactory
extends Object
implements AggregationContextFactory

An AggregationContextFactory used in the implementation of Table.applyToAllBy(java.lang.String, java.lang.String, com.illumon.iris.db.v2.select.SelectColumn...).

Constructor Summary

Constructors

Constructor	Description
FormulaAggregationFactory(String formula, String columnParamName)

Method Summary

Modifier and Type	Method	Description
boolean	allowKeyOnlySubstitution()	Should we allow substitution with a KeyOnlyAggregationFactory (e.g.
static QueryTable	applyToAllBy(AggregationControl aggregationControl, QueryTable inputTable, String formula, String columnParamName, SelectColumn[] groupByColumns)
static QueryTable	applyToAllBy(AggregationControl aggregationControl, QueryTable inputTable, String formula, String columnParamName, String... groupByColumnNames)
static QueryTable	applyToAllBy(QueryTable inputTable, String formula, String columnParamName, SelectColumn[] groupByColumns)
static QueryTable	applyToAllBy(QueryTable inputTable, String formula, String columnParamName, String... groupByColumnNames)
com.illumon.iris.db.v2.by.AggregationContext	makeAggregationContext(Table inputTable, String... groupByColumnNames)	Make an AggregationContext for this aggregation.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

FormulaAggregationFactory

public FormulaAggregationFactory(@NotNull
 String formula,
 @NotNull
 String columnParamName)

Method Details

allowKeyOnlySubstitution

public boolean allowKeyOnlySubstitution()

Description copied from interface: AggregationContextFactory

Should we allow substitution with a KeyOnlyAggregationFactory (e.g. selectDistinct) when there are only key columns? Instances whose operators could have side effects or are already KeyOnlyAggregationFactory should return false.

Specified by:

allowKeyOnlySubstitution in interface AggregationContextFactory

Returns:

Whether to allow a KeyOnlyAggregationFactory to be substituted for this when there are only key columns

makeAggregationContext

public com.illumon.iris.db.v2.by.AggregationContext makeAggregationContext(@NotNull
 Table inputTable,
 @NotNull
 String... groupByColumnNames)

Description copied from interface: AggregationContextFactory

Make an AggregationContext for this aggregation.

Specified by:

makeAggregationContext in interface AggregationContextFactory

Parameters:

inputTable - The source Table to aggregate

groupByColumnNames - The key column names

Returns:

A new or safely reusable AggregationContext

toString

public String toString()

Overrides:

toString in class Object

applyToAllBy

public static QueryTable applyToAllBy(@NotNull
 QueryTable inputTable,
 @NotNull
 String formula,
 @NotNull
 String columnParamName,
 @NotNull
 String... groupByColumnNames)

applyToAllBy

public static QueryTable applyToAllBy(@NotNull
 QueryTable inputTable,
 @NotNull
 String formula,
 @NotNull
 String columnParamName,
 @NotNull
 SelectColumn[] groupByColumns)

applyToAllBy

public static QueryTable applyToAllBy(@NotNull
 AggregationControl aggregationControl,
 @NotNull
 QueryTable inputTable,
 @NotNull
 String formula,
 @NotNull
 String columnParamName,
 @NotNull
 String... groupByColumnNames)

applyToAllBy

public static QueryTable applyToAllBy(@NotNull
 AggregationControl aggregationControl,
 @NotNull
 QueryTable inputTable,
 @NotNull
 String formula,
 @NotNull
 String columnParamName,
 @NotNull
 SelectColumn[] groupByColumns)