quadbase.ChartAPI

Class DataSheet

java.lang.Object

quadbase.ChartAPI.DataSheet

public class DataSheet
extends java.lang.Object

This class provides a functionality to merge multiple data sources together. User can create a DataSheet class from a different data sources, for example, data file, database, spreadSheetModel, and IResultSet. And user can use a QbChart constructor for DataSheet array to create a chart object.

Constructor Summary

Constructors

Constructor and Description
DataSheet(java.applet.Applet applet, EJBInfo ejbInfo) Create a new dataSheet from EJBInfo
DataSheet(java.applet.Applet applet, EJBInfo ejbInfo, boolean doTranspose) Create a new dataSheet from EJBInfo
DataSheet(java.applet.Applet applet, EJBInfo ejbInfo, boolean doTranspose, int[] transposeColIdx) Create a new dataSheet from EJBInfo
DataSheet(java.applet.Applet applet, IDatabaseInfo dbInfo, boolean doTranspose) Create a new dataSheet from a database
DataSheet(java.applet.Applet applet, IDatabaseInfo dbInfo, boolean doTranspose, int[] transposeColIdx) Create a new dataSheet from a database
DataSheet(java.applet.Applet applet, IResultSet data, boolean doTranspose) Create a new dataSheet from IResultset
DataSheet(java.applet.Applet applet, IResultSet data, boolean doTranspose, int[] transposeColIdx) Create a new dataSheet from IResultset
DataSheet(java.applet.Applet applet, ISpreadSheetModel spreadSheet) Create a new dataSheet from spread sheet
DataSheet(java.applet.Applet applet, java.lang.String dataFile, boolean doTranspose) Create a new dataSheet from a data file
DataSheet(java.applet.Applet applet, java.lang.String dataFile, boolean doTranspose, int[] transposeColIdx) Create a new dataSheet from a data file
DataSheet(java.applet.Applet applet, java.lang.String dataFile, boolean doTranspose, int[] transposeColIdx, int dataFileType) Create a new dataSheet from a data file
DataSheet(java.applet.Applet applet, XMLFileQueryInfo xmlFileQueryInfo, boolean doTranspose, int[] transposeColIdx) Create a new dataSheet from XML File

Method Summary

Modifier and Type	Method and Description
void	addRow(java.lang.Object[] record) add a new row data
void	deleteRow(int no) delete a specified row
int	getColumnCount() returns number of columns
java.lang.Object[]	getRow(int no) returns specified row data
int	getRowCount() returns number of rows
void	print(java.io.PrintStream out, int separator, int format) Print Data File
void	transpose() set data transpose limitation: all data columns (except the first column) must have same data type
void	transpose(int[] transposeCol) set data transpose
void	updateRow(java.lang.Object[] record, int no) update the specified row

Methods inherited from class java.lang.Object

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

Constructor Detail

DataSheet

public DataSheet(java.applet.Applet applet,
                 IDatabaseInfo dbInfo,
                 boolean doTranspose)

Create a new dataSheet from a database

Parameters:

applet - the applet containing the chart. Use "(Applet)null" if used within an application

dbInfo - database information, see interface IDatabaseInfo

doTranspose - a flag denoting whether the input data has to be transposed into a result set having three columns: RowLabel, ColumnLabel, and Value

DataSheet

public DataSheet(java.applet.Applet applet,
                 IDatabaseInfo dbInfo,
                 boolean doTranspose,
                 int[] transposeColIdx)

Create a new dataSheet from a database

Parameters:

applet - the applet containing the chart. Use "(Applet)null" if used within an application

dbInfo - database information, see interface IDatabaseInfo

doTranspose - a flag denoting whether the input data has to be transposed into a result

transposeColIdx - transpose selected column index

DataSheet

public DataSheet(java.applet.Applet applet,
                 java.lang.String dataFile,
                 boolean doTranspose)

Create a new dataSheet from a data file

Parameters:

applet - the applet containing the chart. Use "(Applet)null" if used within an application

dataFile - source data file, see database file format for details

doTranspose - a flag denoting whether the input data has to be transposed into a result set having three columns: RowLabel, ColumnLabel, and Value

DataSheet

public DataSheet(java.applet.Applet applet,
                 java.lang.String dataFile,
                 boolean doTranspose,
                 int[] transposeColIdx)

Create a new dataSheet from a data file

Parameters:

applet - the applet containing the chart. Use "(Applet)null" if used within an application

dataFile - source data file, see database file format for details

doTranspose - a flag denoting whether the input data has to be transposed into a result set having three columns: RowLabel, ColumnLabel, and Value

transposeColIdx - transposing selected column index

DataSheet

public DataSheet(java.applet.Applet applet,
                 java.lang.String dataFile,
                 boolean doTranspose,
                 int[] transposeColIdx,
                 int dataFileType)

Create a new dataSheet from a data file

Parameters:

applet - the applet containing the chart. Use "(Applet)null" if used within an application

dataFile - source data file, see database file format for details

doTranspose - a flag denoting whether the input data has to be transposed into a result set having three columns: RowLabel, ColumnLabel, and Value

transposeColIdx - transposing selected column index

dataFileType - Type of data file (QbChart.DATAFILE, QbChart.CLASSFILE or QbChart.XMLFILE)

DataSheet

public DataSheet(java.applet.Applet applet,
                 IResultSet data,
                 boolean doTranspose)

Create a new dataSheet from IResultset

Parameters:

applet - the applet containing the chart. Use "(Applet)null" if used within an application

data - source data to plot chart, see IResultSet for details

doTranspose - a flag denoting whether the input data has to be transposed into a result set having three columns: RowLabel, ColumnLabel, and Value

DataSheet

public DataSheet(java.applet.Applet applet,
                 IResultSet data,
                 boolean doTranspose,
                 int[] transposeColIdx)

Create a new dataSheet from IResultset

Parameters:

applet - the applet containing the chart. Use "(Applet)null" if used within an application

data - source data to plot chart, see IResultSet for details

doTranspose - a flag denoting whether the input data has to be transposed into a result

transposeColIdx - transposing selected column index

DataSheet

public DataSheet(java.applet.Applet applet,
                 EJBInfo ejbInfo)

Create a new dataSheet from EJBInfo

Parameters:

applet - the applet containing the chart. Use "(Applet)null" if used within an application

ejbInfo - ejb info to plot chart.

DataSheet

public DataSheet(java.applet.Applet applet,
                 EJBInfo ejbInfo,
                 boolean doTranspose)

Create a new dataSheet from EJBInfo

Parameters:

applet - the applet containing the chart. Use "(Applet)null" if used within an application

ejbInfo - ejb info to plot chart.

doTranspose - a flag denoting whether the input data has to be transposed into a result

DataSheet

public DataSheet(java.applet.Applet applet,
                 EJBInfo ejbInfo,
                 boolean doTranspose,
                 int[] transposeColIdx)

Create a new dataSheet from EJBInfo

Parameters:

applet - the applet containing the chart. Use "(Applet)null" if used within an application

ejbInfo - ejb info to plot chart.

doTranspose - a flag denoting whether the input data has to be transposed into a result

transposeColIdx - transposing selected column index

DataSheet

public DataSheet(java.applet.Applet applet,
                 XMLFileQueryInfo xmlFileQueryInfo,
                 boolean doTranspose,
                 int[] transposeColIdx)

Create a new dataSheet from XML File

Parameters:

applet - the applet containing the chart. Use "(Applet)null" if used within an application

xmlFiledQueryInfo - xml info to plot chart.

doTranspose - a flag denoting whether the input data has to be transposed into a result

transposeColIdx - transposing selected column index

DataSheet

public DataSheet(java.applet.Applet applet,
                 ISpreadSheetModel spreadSheet)

Create a new dataSheet from spread sheet

Parameters:

applet - the applet containing the chart. Use "(Applet)null" if used within an application

spreadSheet - source data model for chart, see ISpreadSheetModel for details

Method Detail

transpose

public void transpose()
               throws java.lang.Exception

set data transpose
limitation: all data columns (except the first column) must have same data type

Throws:

java.lang.Exception

transpose

public void transpose(int[] transposeCol)
               throws java.lang.Exception

set data transpose

Parameters:

transposeCol - transposing selected column index

Throws:

java.lang.Exception

getRowCount

public int getRowCount()

returns number of rows

Returns:

row count

getColumnCount

public int getColumnCount()

returns number of columns

Returns:

column count

getRow

public java.lang.Object[] getRow(int no)

returns specified row data

Parameters:

no - row number

Returns:

object array which containing row data

addRow

public void addRow(java.lang.Object[] record)

add a new row data

Parameters:

record - new row data object

deleteRow

public void deleteRow(int no)

delete a specified row

Parameters:

no - row number of deleted row

updateRow

public void updateRow(java.lang.Object[] record,
                      int no)

update the specified row

Parameters:

record - the new row data

no - the row number to update

print

public void print(java.io.PrintStream out,
                  int separator,
                  int format)

Print Data File

Parameters:

out - The outputStream. The caller is responsible for closing it.

separator - Available separators are :
QbChart.COMMA
QbChart.SEMICOLON
QbChart.SPACE

format - Available format are :
QbChart.TXTFORMAT
QbChart.XMLFORMAT