netcharts.pro.datamodel
Interface NFDataModel

All Known Implementing Classes:

NFDataModel2D, NFDataModelAdapter, NFDataModelStock, NFDataModelDiagram, NFDataModelAxisLabel, NFDataModel1D, NFDataModelTime, NFDataModel3D

public interface NFDataModel

This object should not be implemented directly - use NFDataModel1D, NFDataModel2D, NFDataModel3D NFDataModelStock, etc.

Method Summary

java.lang.Object	elementAt(int rowIndex) Objects implementing this method are intended to provide access to one dimensional data.
java.lang.Object	elementAt(int row, int nthDimension) Objects implementing this method are intended to provide access to multidimensional data.
int	getDataDimensions() returns the number of dimensions in the data
int	getNRows() returns the number of rows in the data
boolean	hasMoreData() returns false if there is no more data.

Method Detail

hasMoreData

public boolean hasMoreData()

returns false if there is no more data.

getNRows

public int getNRows()

returns the number of rows in the data

getDataDimensions

public int getDataDimensions()

returns the number of dimensions in the data

elementAt

public java.lang.Object elementAt(int rowIndex)

Objects implementing this method are intended to provide access to one dimensional data.

elementAt

public java.lang.Object elementAt(int row,
                                  int nthDimension)

Objects implementing this method are intended to provide access to multidimensional data. row indexes start at 0, col indexes start at 0 The netcharts rendering engines expect the following: Two dimensional data is in the form X,Y (X in first dimension, Y in second) Three dimensional data is in the form X,Y,Z Stock data is in the form High, Low, Open, Close Therefore, if a XY Chart requests data for row 2, col 1 it expects the information coming back is a 'Y' value.