BIRT Chart Library Aggregate Function Extension

org.eclipse.birt.chart.engine.aggregatefunctions

1.0.0

This extension point is used to define custom Aggregate Functions for use by the chart library. Each extension must implment the IAggregateFunction interface.

<!ELEMENT extension (aggregateFunction)>

<!ATTLIST extension

point CDATA #REQUIRED

id    CDATA #IMPLIED

name  CDATA #IMPLIED>


<!ELEMENT aggregateFunction EMPTY>

<!ATTLIST aggregateFunction

name     CDATA #IMPLIED

function CDATA #IMPLIED>

The definition of an Aggregate Function for use by the Chart Library.



The Aggregate Function implementation must implement the IAggregateFunction interface in the org.eclipse.birt.chart.aggregate package. See the javadoc for the interface for more information.

The org.eclipse.birt.chart.engine.extension plug-in provides an example of an implementation of IAggregateFuntion.