oracle.jbo.html.databeans.chart
Class MappedChartDataSource

java.lang.Object
oracle.jbo.html.databeans.chart.ChartDataSource
oracle.jbo.html.databeans.chart.MappedChartDataSource

All Implemented Interfaces:

tdg.data.in.TDGDataGrid

Direct Known Subclasses:

LabelAwareChartDataSource

public abstract class MappedChartDataSource

extends ChartDataSource

A Data source which provides a mapping support for the chart control. Some of the columns in the underlying View can be supressed (ex., CHAR type columns) using this datasource. This list of columns to be used in drawing the chart can be specified

• As a list of column names
• As a list of column indices

A View with 'v' columns can be mapped to a chart data source with 'n' columns (n <= v).

Version:

Internal

See Also:

ChartDataSource, ChartLabelDataSource

Field Summary

Fields inherited from class oracle.jbo.html.databeans.chart.ChartDataSource

_parent, _qView, _rows

Constructor Summary

MappedChartDataSource(tdg.Perspective parent)
Constructor

Method Summary

protected int	_getColumnIndex(RowSet rs, java.lang.String name) get the index of the given column name
protected java.lang.String	_getColumnName(RowSet rs, int index)
protected void	_initMap()
protected int	_mapColumnIndex(int columnIndex)
int	getColumns()
int[]	getMappingColumnIndices()
java.lang.String[]	getMappingColumnNames() get the current list of mapped columns
java.lang.Object	getValue(int row, int col)
void	initialize() This method should be invoked after the View object has been set.
void	setMappingColumnIndices(int[] indices) Specify mapping description using column indices.
void	setMappingColumnNames(java.lang.String[] columnNames) Specify mapping description using columnNames.

Methods inherited from class oracle.jbo.html.databeans.chart.ChartDataSource

_updateChart, columnLabel, getColumnLabel, getColumnLabelDataSource, getFootnote, getO1AxisTitle, getO2AxisTitle, getRowLabel, getRowLabelDataSource, getRows, getRowSet, getSubtitle, getTitle, getX1AxisTitle, getY1AxisTitle, getY2AxisTitle, isDirty, rowLabel, setColumnLabel, setColumnLabelDataSource, setRowLabel, setRowLabelDataSource, setRowSet

Methods inherited from class java.lang.Object

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

Constructor Detail

MappedChartDataSource

public MappedChartDataSource(tdg.Perspective parent)

Constructor

Method Detail

initialize

public void initialize()

This method should be invoked after the View object has been set.

setMappingColumnNames

public void setMappingColumnNames(java.lang.String[] columnNames)

Specify mapping description using columnNames.

Parameters:

columnNames - List of column names in the underlying View object The resultant data source will have as column 0, the columnNames[0] and so on.

See Also:

setMappingColumnIndices(int[])

getMappingColumnNames

public java.lang.String[] getMappingColumnNames()

get the current list of mapped columns

setMappingColumnIndices

public void setMappingColumnIndices(int[] indices)

Specify mapping description using column indices.

Parameters:

indices - List of column indices in the underlying View object The resultant data source will have as column 0, the indices[0] and so on.

See Also:

setMappingColumnNames(String[])

getMappingColumnIndices

public int[] getMappingColumnIndices()

getColumns

public int getColumns()

Specified by:

getColumns in interface tdg.data.in.TDGDataGrid

Overrides:

getColumns in class ChartDataSource

getValue

public java.lang.Object getValue(int row,
                                 int col)

Specified by:

getValue in interface tdg.data.in.TDGDataGrid

Overrides:

getValue in class ChartDataSource

_initMap

protected void _initMap()

_mapColumnIndex

protected int _mapColumnIndex(int columnIndex)

_getColumnIndex

protected int _getColumnIndex(RowSet rs,
                              java.lang.String name)

get the index of the given column name

_getColumnName

protected java.lang.String _getColumnName(RowSet rs,
                                          int index)