com.highqsoft.jasper.dataSource

Class ValueMatrixDataSource

java.lang.Object

com.highqsoft.jasper.dataSource.ValueMatrixDataSource

All Implemented Interfaces:

net.sf.jasperreports.engine.JRDataSource, net.sf.jasperreports.engine.JRRewindableDataSource

public class ValueMatrixDataSource
extends java.lang.Object
implements net.sf.jasperreports.engine.JRRewindableDataSource

Constructor Summary

Constructors

Constructor and Description
ValueMatrixDataSource(ValueMatrix vm, java.lang.String columnName) The constructor of the datasource.

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.Object	getFieldValue(net.sf.jasperreports.engine.JRField arg0) The get field method, the following fields are supported.
void	moveFirst() Move the index to the first point.
boolean	next() Set the index to th enext point in the valuematrix.

Methods inherited from class java.lang.Object

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

Constructor Detail

ValueMatrixDataSource

public ValueMatrixDataSource(ValueMatrix vm,
                     java.lang.String columnName)

The constructor of the datasource. The valuematrx and the name of the column is expected. There are two fields available, the field indepenent<\em> and value<\em>. The field indepenent<\em> returns the values of the independent channel. the field value<\em> returns the values of the given column. The datasource will reduce the number of points to a fixed number of poinst, the datasource will skip the undefined values from the valuematrix.

Parameters:

vm - the valuematrix object.

columnName - the name of the column.

Method Detail

getFieldValue

public java.lang.Object getFieldValue(net.sf.jasperreports.engine.JRField arg0)
                               throws net.sf.jasperreports.engine.JRException

The get field method, the following fields are supported.

independent, the value of the indendent channel of the valuematrix, the type of the value is java.lang.Double value, the value of the column, the type of the value is java.lang.Double.

Specified by:

getFieldValue in interface net.sf.jasperreports.engine.JRDataSource

Parameters:

arg0, - the field.

Returns:

the requested field value.

Throws:

net.sf.jasperreports.engine.JRException

See Also:

JRDataSource.getFieldValue(net.sf.jasperreports.engine.JRField)

next

public boolean next()
             throws net.sf.jasperreports.engine.JRException

Set the index to th enext point in the valuematrix.

Specified by:

next in interface net.sf.jasperreports.engine.JRDataSource

Returns:

true if there are more points left.

Throws:

net.sf.jasperreports.engine.JRException

See Also:

JRDataSource.next()

moveFirst

public void moveFirst()
               throws net.sf.jasperreports.engine.JRException

Move the index to the first point.

Specified by:

moveFirst in interface net.sf.jasperreports.engine.JRRewindableDataSource

Throws:

net.sf.jasperreports.engine.JRException

See Also:

JRRewindableDataSource.moveFirst()