net.windward.datasource
Class ChartDataImpl

java.lang.Object
  |
  +--net.windward.datasource.ChartDataImpl

public class ChartDataImpl

extends java.lang.Object

Uses existing DataSource calls to handle chart data requests.

Version:

4.0 Jul 15, 2005

Constructor Summary

ChartDataImpl(DataSourceNode node, ChartTag tag, DataSourceNode[] stack, java.util.Locale locale)
Returns a set of data used to create a chart.

Method Summary

net.windward.datasource.ChartDataSet

getData() Returns a set of data used to create a chart.

Methods inherited from class java.lang.Object

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

Constructor Detail

ChartDataImpl

public ChartDataImpl(DataSourceNode node,
                     ChartTag tag,
                     DataSourceNode[] stack,
                     java.util.Locale locale)

Returns a set of data used to create a chart. The structure of this is tied tightly to the chart package.

Parameters:

node - The datasource node on.

tag - The wr:chart tag with the select setting to use.

stack - The stack of forEach loops in at this point. Node [0] is the root document node so this will always have length of at least 1.

locale - The locale used for formatting numbers, dates, etc.

Method Detail

getData

public net.windward.datasource.ChartDataSet getData()
                                             throws DataSourceException

Returns a set of data used to create a chart. The structure of this is tied tightly to the chart package.

Returns:

The data used by the charting functions to create the chart.

Throws:

DataSourceException - Could not retrieve the data. Generally wraps a SqlException or XpathException.