com.sas.graphics.components.piechart
Class PieChartOLAPDataModel

com.sas.graphics.components.piechart.PieChartOLAPDataModel

public class PieChartOLAPDataModel

A PieChartOLAPDataModel assigns an OLAPDataSetInterface to a PieChart. The com.sas.storage.olap.OLAPDataSetInterface encapsulates the OLAP data structure, and the PieChartOLAPDataModel conveys that structure to a graph by automatically mapping the OLAP axis dimensions to appropriate graph elements. The following limitations apply to the mapping:

• OLAP expands are not displayed
• A maximum of two OLAP axes can be displayed.

If the OLAP axis that supplies the category variable has more than one dimension, the PieChartOLAPDataModel's subgroupEnabled property can be used to display pie subgroups.

Topics:

Basic Requirements
Default Logic Used to Map OLAP Data
Selecting Measures in OLAP Data

Samples:

Swing-based Sample
Servlet-based Sample

Since:

SAS 9.1

See Also:

PieChart

Constructor Summary

PieChartOLAPDataModel()
Constructs a PieChartOLAPDataModel that is used to assign OLAP data in the form of a com.sas.storage.olap.OLAPDataSetInterface to a PieChart.

PieChartOLAPDataModel(OLAPDataSetInterface newModel)
Constructs a PieChartOLAPDataModel that is used to assign OLAP data in the form of a com.sas.storage.olap.OLAPDataSetInterface to a PieChart.

PieChartOLAPDataModel(OLAPDataSetInterface newModel, boolean newSubgroupEnabled)
Constructs a PieChartOLAPDataModel that is used to assign OLAP data in the form of a com.sas.storage.olap.OLAPDataSetInterface to a PieChart.

Method Summary

void	apply(PieChartOLAPDataModel theOtherModel) Utility method to convey properties contained in "theOtherModel" to this object.
boolean	equals(java.lang.Object obj) Determines whether another object is equal to this PieChartOLAPDataModel.
Variable[]	getAuxiliaryVariable() Returns the array of data columns that was most recently set by the setAuxiliaryVariable() method.
Variable[]	getDataTipVariable() Returns the array of data columns that was most recently set by the setDataTipVariable() method.
OLAPDataSetInterface	getModel() Get the OLAP data source.
Variable	getResponseVariable() Returns the data measure that was most recently set in the Response role by the setResponseVariable() method.
javax.swing.ListSelectionModel	getSelectionModel() Returns the ListSelectionModel that indicates which data values are selected.
int	hashCode() Computes the hash code for this PieChartOLAPDataModel.
boolean	isSubgroupEnabled()
void	setAuxiliaryVariable(Variable[] newVariables) Specifies an array of Variables that are included among the variables that are passed in the events on the PieChart data elements.
void	setDataTipVariable(Variable[] newVariables) Specifies an array of Variables to be displayed in the data tip.
void	setModel(OLAPDataSetInterface newModel) Set the OLAP data source.
void	setResponseVariable(Variable newVariable) Sets which measures are to be displayed in the pie chart.
void	setSelectionModel(javax.swing.ListSelectionModel newModel) Sets the selection model that identifies which cells are selected.
void	setSubgroupEnabled(boolean newSubgroupEnabled)

Methods inherited from class com.sas.graphics.components.DataModel

apply, getLocale, getRulesContext, getSortStrategy, setLocale, setRulesContext, setSortStrategy

Methods inherited from class com.sas.graphics.components.ModelBase

addPropertyChangeListener, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, removePropertyChangeListener, setContainedModel

Constructor Detail

PieChartOLAPDataModel

public PieChartOLAPDataModel()

Constructs a PieChartOLAPDataModel that is used to assign OLAP data in the form of a com.sas.storage.olap.OLAPDataSetInterface to a PieChart.

PieChartOLAPDataModel

public PieChartOLAPDataModel(OLAPDataSetInterface newModel)

Constructs a PieChartOLAPDataModel that is used to assign OLAP data in the form of a com.sas.storage.olap.OLAPDataSetInterface to a PieChart.

Parameters:

newModel - the OLAP data

PieChartOLAPDataModel

public PieChartOLAPDataModel(OLAPDataSetInterface newModel,
                             boolean newSubgroupEnabled)

Constructs a PieChartOLAPDataModel that is used to assign OLAP data in the form of a com.sas.storage.olap.OLAPDataSetInterface to a PieChart.

Parameters:

newModel - the OLAP data

newSubgroupEnabled - Should a subgroup be used?

Method Detail

apply

public void apply(PieChartOLAPDataModel theOtherModel)

Utility method to convey properties contained in "theOtherModel" to this object.

Note: Contained "models" (i.e. properties that are subclasses of ModelBase) will in turn be called on to convey their properties to the like contained models in the other object. In that respect this can be considered a "tree" type copy.

Also Note: This is a deep copy. Thus after the copy, mutable properties will not be shared by the two instances.

Parameters:

theOtherModel - properties applied to this instance

Throws:

java.lang.IllegalArgumentException - if theOtherModel is null.

equals

public boolean equals(java.lang.Object obj)

Determines whether another object is equal to this PieChartOLAPDataModel.

The result is true if and only if the argument is not null and is a PieChartOLAPDataModel object that has the same property values as this object.

Overrides:

equals in class DataModel

Parameters:

obj - the object to test for equality with this PieChartOLAPDataModel

Returns:

true if the objects are the same; false otherwise.

hashCode

public int hashCode()

Computes the hash code for this PieChartOLAPDataModel.

Overrides:

hashCode in class DataModel

Returns:

a hash code value for this object.

setSubgroupEnabled

public void setSubgroupEnabled(boolean newSubgroupEnabled)

See Also:

isSubgroupEnabled()

isSubgroupEnabled

public boolean isSubgroupEnabled()

See Also:

setSubgroupEnabled(boolean)

setModel

public void setModel(OLAPDataSetInterface newModel)

Set the OLAP data source.

Parameters:

newModel - the properties of the data source or null

See Also:

getModel()

getModel

public OLAPDataSetInterface getModel()

Get the OLAP data source.

Returns:

the properties of the data source or null

See Also:

setModel(com.sas.storage.olap.OLAPDataSetInterface)

setSelectionModel

public void setSelectionModel(javax.swing.ListSelectionModel newModel)

Sets the selection model that identifies which cells are selected. The graph will highlight the selected elements as well as enable selection on the graph elements via mouse clicks and brushing. To create a brush, click and drag in the element area. To move the brush (represented as a rectangle) click inside the brush area and drag.

Parameters:

newModel - the selection model identifying selected cells

Throws:

java.lang.IllegalArgumentException - if newModel is null.

See Also:

getSelectionModel()

getSelectionModel

public javax.swing.ListSelectionModel getSelectionModel()

Returns the ListSelectionModel that indicates which data values are selected.

Returns:

the ListSelectionModel containing the indicies of the selected data values.

See Also:

setSelectionModel(javax.swing.ListSelectionModel)

setResponseVariable

public void setResponseVariable(Variable newVariable)

Sets which measures are to be displayed in the pie chart.
Note: this is an optional property.
If responseVariables have not been specified (the typical case) then the pie chart will display all of the measures defined in the OLAP model.

This property should only be used to do one of the following operations: to re-arrange the display order, to prevent some measures from being displayed.

Also Note: the variable's informat property is ignored. Advanced: Use a VariableList to assign multiple measures to this property.
Multiple measures result in multiple pie slices per category (displayed in separate pies).

Parameters:

newVariable - the variable identifying the OLAP measure with associated properties

See Also:

getResponseVariable()

getResponseVariable

public Variable getResponseVariable()

Returns the data measure that was most recently set in the Response role by the setResponseVariable() method. Returns a null pointer exception if the variable role has not been set.

Returns:

the variable identifying the OLAP measures with associated properties

See Also:

setResponseVariable(com.sas.graphics.components.Variable)

setAuxiliaryVariable

public void setAuxiliaryVariable(Variable[] newVariables)

Specifies an array of Variables that are included among the variables that are passed in the events on the PieChart data elements. Auxiliary variables are not represented in the chart. By default, they are not displayed in the datatip, although they can be included in the array of variables set by setDataTipVariable().

Parameters:

newVariables - contains Variables for GraphActionEvent return.

Throws:

java.lang.IllegalArgumentException - if a non-null array of zero length is passed in.

See Also:

getAuxiliaryVariable(), setDataTipVariable(com.sas.graphics.components.Variable[])

getAuxiliaryVariable

public Variable[] getAuxiliaryVariable()

Returns the array of data columns that was most recently set by the setAuxiliaryVariable() method. Returns null if the auxiliary variables were not set.

Returns:

variables for Auxiliary values

See Also:

setAuxiliaryVariable(com.sas.graphics.components.Variable[]), setDataTipVariable(com.sas.graphics.components.Variable[])

setDataTipVariable

public void setDataTipVariable(Variable[] newVariables)

Specifies an array of Variables to be displayed in the data tip. By default, the variables specified on setDataTipVariable() are appended to the end of the default data tip display. To replace the default display with the list of variables in the Variable[] array, use the GraphModel to get the DataTipModel , and the call the DataTipModel's setContent() method with the value GraphConstants.DATA_TIP_REPLACE.

The following code fragment specifies two variables for the data tip display and uses them to replace the default data tip display:

 // Create an array of variables to set in the data tip display
 Variable dataTipVars[]=new Variable[2];
 dataTipVars[0]=new Variable("Task");
 dataTipVars[1]=new Variable("Duration");
 pieChart.getGraphModel().getDataTipModel().setContent(
                GraphConstants.DATA_TIP_REPLACE);
 

Parameters:

newVariables - array of Variables to display in data tip

Throws:

java.lang.IllegalArgumentException - if a non-null array of zero length is passed in.

See Also:

getDataTipVariable(), setAuxiliaryVariable(com.sas.graphics.components.Variable[])

getDataTipVariable

public Variable[] getDataTipVariable()

Returns the array of data columns that was most recently set by the setDataTipVariable() method. Returns null if the data tip variables were not set.

Returns:

variables for data tip values

See Also:

setDataTipVariable(com.sas.graphics.components.Variable[])