lt.monarch.chart.models
Class MetaDataModel

java.lang.Object
  lt.monarch.chart.models.MetaDataModel

All Implemented Interfaces:

java.io.Serializable

public class MetaDataModel
extends java.lang.Object
implements java.io.Serializable

Meta data model. Used to set the styles for the specified series also style and labels for specified markers. Here are some examples of the meta data:

setData(MetaDataType.LABEL_DATA,"x1==null||x0==null","There is no data");

setData(MetaDataType.STYLE_DATA,"x1==null||x0==null",new Style());

setData(MetaDataType.HINT_DATA,"x1==null||x0==null","Wow!");

setData(MetaDataType.HINT_DATA,"$index$%2==0","Wow!");

setData(MetaDataType.HINT_DATA,"$row$==$column$","Diagonal!");

setData(MetaDataType.HINT_DATA,1,"$index$ data");

setData(MetaDataType.LABEL_DATA,"x1==200","$x1$ km/h");

setData(MetaDataType.LABEL_DATA,"x1<200","Too little");

setData(MetaDataType.LABEL_DATA,"x1==null","No data");

setData(MetaDataType.DATE_FORMAT,"yy.MM.dd");

setData(MetaDataType.NUMBER_FORMAT,"#.00");

setData(MetaDataType.BAR_WIDTH,"x0>70 && x0<100","x0/1000") This one is handy, since it lets to specify the bar width according to the logical expression and dynamic value according to the data model.

See Also:

Serialized Form

Field Summary

Modifier and Type	Field and Description
protected java.util.Map<MetaDataType,DataModelColumn>	virtualColumns

Constructor and Description

MetaDataModel()

Method Summary

Modifier and Type	Method and Description
void	clear()
void	dispose() Disposes the object
protected java.lang.String	exchangeExpression(int index, java.lang.String expression) Exchanges $index$ value in the expression to be integer value
protected void	finalize()
java.lang.Object	getData(MetaDataType dataType, int index, DataModel dataModel) Gets the object for the specified data point (array model)
java.lang.Object	getData(MetaDataType dataType, int row, int column, DataModel dataModel) Gets the object for the specified data point (matrix model)
java.lang.Object	getData(MetaDataType dataType, java.lang.String value, int index) Gets the object for the specified label
void	setData(MetaDataType dataType, DataModelColumn column) Sets the data type calculation function
void	setData(MetaDataType dataType, int row, int column, java.lang.Object object) Sets object for the specified data point (used for matrix)
void	setData(MetaDataType dataType, int index, java.lang.Object object) Sets object for the specified data point (array)
void	setData(MetaDataType dataType, java.lang.Object object) Sets general object for all data points
void	setData(MetaDataType dataType, java.lang.String logExpression, java.lang.Object object) Sets the label when the data point satisfies the logical expression

Methods inherited from class java.lang.Object

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

Field Detail

virtualColumns

protected java.util.Map<MetaDataType,DataModelColumn> virtualColumns

Constructor Detail

MetaDataModel

public MetaDataModel()

Method Detail

exchangeExpression

protected java.lang.String exchangeExpression(int index,
                                              java.lang.String expression)

Exchanges $index$ value in the expression to be integer value

Parameters:

index - index

expression - expression

Returns:

new expression containing integer

setData

public void setData(MetaDataType dataType,
                    java.lang.Object object)

Sets general object for all data points

Parameters:

dataType - enumeration form MetaDataType, which specifies the type of the data: label, hint, style and etc.

object - general object for all data points

setData

public void setData(MetaDataType dataType,
                    int index,
                    java.lang.Object object)

Sets object for the specified data point (array)

Parameters:

dataType - enumeration form MetaDataType, which specifies the type of the data: label, hint, style and etc.

index - index of the data model

object - object for specified index

setData

public void setData(MetaDataType dataType,
                    int row,
                    int column,
                    java.lang.Object object)

Sets object for the specified data point (used for matrix)

Parameters:

dataType - enumeration form MetaDataType, which specifies the type of the data: label, hint, style and etc.

row - row of the data model

column - column of the data model

object - object for specified column and row

setData

public void setData(MetaDataType dataType,
                    java.lang.String logExpression,
                    java.lang.Object object)
             throws java.lang.Exception

Sets the label when the data point satisfies the logical expression

Parameters:

dataType - enumeration form MetaDataType, which specifies the type of the data: label, hint, style and etc.

logExpression - logical expression, which will have to be evaluated for each data point

object - object, which satisfies the condition

Throws:

java.lang.Exception - throws exception if any error occurs parsing the logical formula

setData

public void setData(MetaDataType dataType,
                    DataModelColumn column)

Sets the data type calculation function

Parameters:

dataType - enumeration form MetaDataType, which specifies the type of the data: label, hint, style and etc.

column - function which evaluates data model data and returns required meta model value

getData

public java.lang.Object getData(MetaDataType dataType,
                                int index,
                                DataModel dataModel)

Gets the object for the specified data point (array model)

Parameters:

dataType - enumeration form MetaDataType, which specifies the type of the data: label, hint, style and etc.

index - data point index

dataModel - data model

Returns:

object of the specified point

getData

public java.lang.Object getData(MetaDataType dataType,
                                java.lang.String value,
                                int index)

Gets the object for the specified label

Parameters:

dataType - enumeration form MetaDataType, which specifies the type of the data: label, hint, style and etc.

value - label to evaluate value

index - label index

Returns:

object of the specified point

getData

public java.lang.Object getData(MetaDataType dataType,
                                int row,
                                int column,
                                DataModel dataModel)

Gets the object for the specified data point (matrix model)

Parameters:

dataType - enumeration form MetaDataType, which specifies the type of the data: label, hint, style and etc.

row - row of the data model

column - column of the data model

dataModel - matrix data model

Returns:

object of the specified data point

dispose

public void dispose()

Disposes the object

finalize

protected void finalize()
                 throws java.lang.Throwable

Overrides:

finalize in class java.lang.Object

Throws:

java.lang.Throwable

clear

public void clear()