Implementations of this interface can be used for rendering chart components. Data obtained from the report
datasource can be also displayed in a chart, embedded in the report. There are a lot of chart types, each with
its own dataset and characteristics. This interface only defines the common properties.
author: Teodor Danciu (teodord@users.sourceforge.net) version: $Id: JRChart.java 1573 2007-02-07 16:58:50Z shertage $