# Uses of Interface
org.eclipse.birt.chart.factory.IGroupedDataRowExpressionEvaluator

Packages that use IGroupedDataRowExpressionEvaluator
Package
Description
org.eclipse.birt.chart.factory
Contains classes and interfaces used in the chart building and generation phase.

## Uses of IGroupedDataRowExpressionEvaluator in org.eclipse.birt.chart.factory

Classes in org.eclipse.birt.chart.factory that implement IGroupedDataRowExpressionEvaluator
Modifier and Type
Class
Description
`class`
`AbstractGroupedDataRowExpressionEvaluator`
The abstract class is just defined for the grouping integration with BIRT report, Stand-alone mode of chart or chart default grouping mode can't use the class and its implementation.