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Java Source Code / Java Documentation » Chart » charting 0.94 » de.progra.charting.model

Source Cross Reference Class Diagram Java Document (Java Doc)

de.progra.charting.model .ChartDataModel

All known Subclasses:   de.progra.charting.model .AbstractChartDataModel,
ChartDataModel
public interface ChartDataModel (Code)
This interface defines the methods to access chart data. It has to deal with several difficulties. The model is basically resembling a Swing table model. Furthermore, in the implementation it needs to be defined whether the datasets are organized in rows or in columns, whether the x-axis values are numeric etc. In order to layout certain components, there must be methods to return the maximum and minimum values.
A DataSet is a series of figures belonging together, whereas a column is the value printed at the x-axis. They can be rendered using specific Format classes.
author:
   mueller
version:
   1.0

Method Summary
public void addChartDataModelListener(ChartDataModelListener l)

public int getAxisBinding(int set)
     Returns the Axis binding of a specific DataSet.
public ChartDataModelConstraints getChartDataModelConstraints(int axis)
     Returns a ChartDataModelConstraints object for the given axis binding.
public Class getColumnClass()
     Returns the class of the columns. the class of the column values.
public Object getColumnValueAt(int col)
     Returns a specific column value.
Parameters:
  col - the column index the column value.
public Object getColumnValueAt(int set, int col)
     Returns a specific column value.
Parameters:
  set - the data set index
Parameters:
  col - the column index the column value.
public int getDataSetLength(int set)
     Returns the length of a certain dataset.
public String getDataSetName(int set)
     Returns the title of the DataSet used for rendering the Legend.
public int getDataSetNumber()
     Returns the total amount of datasets.
public double getManualMaximumColumnValue()

public Number getManualMaximumValue()

public double getManualMinimumColumnValue()

public Number getManualMinimumValue()

public Number getValueAt(int set, int index)
     Returns the Value in a specific dataset at a certain index.
public boolean isAutoScale()

public boolean isColumnNumeric()
     Defines whether the column values are numeric, that is, they can be casted to Number.
public boolean isManualScale()
     Returns true if the manual axis scaling is enabled.
public void removeChartDataModelListener(ChartDataModelListener l)

public void setAutoScale(boolean b)

public void setAxisBinding(int set, int axis)
     Sets the Axis binding of a DataSet.
public void setChartDataModelConstraints(int axis, ChartDataModelConstraints constraints)
     Sets the ChartDataModelConstraints object for the given axis binding.
public void setManualScale(boolean b)
     Enables the manual axis scaling.
public void setMaximumColumnValue(double d)
     Sets the maximum x-axis value.
public void setMaximumValue(Number n)
     Sets the maximum y-axis value.
public void setMinimumColumnValue(double d)
     Sets the minimum x-axis value.
public void setMinimumValue(Number n)
     Sets the minimum y-axis value.
public void setValueAt(int set, int index, Object value)
     Sets the value in a specific dataset at the given index.

Method Detail
addChartDataModelListener
public void addChartDataModelListener(ChartDataModelListener l)(Code)
Adds a ChartDataModelListener
Parameters:
  l - the ChartDataModelListener

getAxisBinding
public int getAxisBinding(int set)(Code)
Returns the Axis binding of a specific DataSet.
Parameters:
  set - the DataSet index an integer constant defining the Axis binding

getChartDataModelConstraints
public ChartDataModelConstraints getChartDataModelConstraints(int axis)(Code)
Returns a ChartDataModelConstraints object for the given axis binding.
Parameters:
  axis - the Axis constant a ChartDataModelConstraints object.

getColumnClass
public Class getColumnClass()(Code)
Returns the class of the columns. the class of the column values. In case of numericcolumns this is always Number.class.

getColumnValueAt
public Object getColumnValueAt(int col)(Code)
Returns a specific column value.
Parameters:
  col - the column index the column value. In case of numeric columns this isalways a Number object.

getColumnValueAt
public Object getColumnValueAt(int set, int col)(Code)
Returns a specific column value.
Parameters:
  set - the data set index
Parameters:
  col - the column index the column value. In case of numeric columns this isalways a Number object.

getDataSetLength
public int getDataSetLength(int set)(Code)
Returns the length of a certain dataset. Note that for proper rendering all datasets should have an equal length.
Parameters:
  set - the DataSet index the int length of a DataSet

getDataSetName
public String getDataSetName(int set)(Code)
Returns the title of the DataSet used for rendering the Legend.
Parameters:
  set - the DataSet index a String containing the Title.

getDataSetNumber
public int getDataSetNumber()(Code)
Returns the total amount of datasets. the total amount of DataSets

getManualMaximumColumnValue
public double getManualMaximumColumnValue()(Code)

getManualMaximumValue
public Number getManualMaximumValue()(Code)

getManualMinimumColumnValue
public double getManualMinimumColumnValue()(Code)

getManualMinimumValue
public Number getManualMinimumValue()(Code)

getValueAt
public Number getValueAt(int set, int index)(Code)
Returns the Value in a specific dataset at a certain index.
Parameters:
  set - the DataSet index
Parameters:
  index - the value index in the DataSet the value Object

isAutoScale
public boolean isAutoScale()(Code)

isColumnNumeric
public boolean isColumnNumeric()(Code)
Defines whether the column values are numeric, that is, they can be casted to Number. true if the column value can besafely casted to Number type.

isManualScale
public boolean isManualScale()(Code)
Returns true if the manual axis scaling is enabled. This overrides the enabled automatic axis scaling.

removeChartDataModelListener
public void removeChartDataModelListener(ChartDataModelListener l)(Code)
Removes a ChartDataModelListener
Parameters:
  l - the ChartDataModelListener

setAutoScale
public void setAutoScale(boolean b)(Code)

setAxisBinding
public void setAxisBinding(int set, int axis)(Code)
Sets the Axis binding of a DataSet.
Parameters:
  set - the DataSet index
Parameters:
  axis - the Axis binding constant

setChartDataModelConstraints
public void setChartDataModelConstraints(int axis, ChartDataModelConstraints constraints)(Code)
Sets the ChartDataModelConstraints object for the given axis binding.
Parameters:
  axis - the Axis constant
Parameters:
  constraints - the ChartDataModelConstraints object a ChartDataModelConstraints object.

setManualScale
public void setManualScale(boolean b)(Code)
Enables the manual axis scaling. Set the desired maximum and minimum values using the setMaximum...Value functions.

setMaximumColumnValue
public void setMaximumColumnValue(double d)(Code)
Sets the maximum x-axis value.

setMaximumValue
public void setMaximumValue(Number n)(Code)
Sets the maximum y-axis value.

setMinimumColumnValue
public void setMinimumColumnValue(double d)(Code)
Sets the minimum x-axis value.

setMinimumValue
public void setMinimumValue(Number n)(Code)
Sets the minimum y-axis value.

setValueAt
public void setValueAt(int set, int index, Object value)(Code)
Sets the value in a specific dataset at the given index.
Parameters:
  set - the DataSet index
Parameters:
  index - the value index in the DataSet
Parameters:
  value - the value to be stored

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