org.jfree.report.data

Class StaticDataRow

java.lang.Object

org.jfree.report.data.StaticDataRow

All Implemented Interfaces:

DataRow, DataSet

Direct Known Subclasses:

ImportedVariablesDataRow, ParameterDataRow

public class StaticDataRow
extends java.lang.Object
implements DataRow

This is a static datarow holding a value for each name in the datarow. This datarow does not hold dataflags and thus does not track the changes done to the data inside.

The StaticDataRow is a derived view and is used to provide a safe collection of the values of the previous datarow.

Author:

Thomas Morgner

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	StaticDataRow()
	StaticDataRow(DataRow dataRow)
protected	StaticDataRow(StaticDataRow dataRow)
	StaticDataRow(java.lang.String[] names, java.lang.Object[] values)

Method Summary

Modifier and Type	Method and Description
java.lang.Object	get(int col) Returns the value of the expression or column in the tablemodel using the given column number as index.
java.lang.Object	get(java.lang.String col) Returns the value of the function, expression or column using its specific name.
int	getColumnCount() Returns the number of columns, expressions and functions and marked ReportProperties in the report.
java.lang.String	getColumnName(int col) Returns the name of the column, expression or function.
DataFlags	getFlags(int col) Queries lowlevel meta-data for the current value of the specified column.
DataFlags	getFlags(java.lang.String col) Queries lowlevel meta-data for the current value of the specified column.
protected void	setData(java.lang.String[] names, java.lang.Object[] values)
protected void	updateData(java.lang.Object[] values)

Methods inherited from class java.lang.Object

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

Constructor Detail

StaticDataRow

protected StaticDataRow()

StaticDataRow

protected StaticDataRow(StaticDataRow dataRow)

StaticDataRow

public StaticDataRow(DataRow dataRow)
              throws DataSourceException

Throws:

DataSourceException

StaticDataRow

public StaticDataRow(java.lang.String[] names,
                     java.lang.Object[] values)

Method Detail

setData

protected void setData(java.lang.String[] names,
                       java.lang.Object[] values)

updateData

protected void updateData(java.lang.Object[] values)

get

public java.lang.Object get(int col)
                     throws DataSourceException

Returns the value of the expression or column in the tablemodel using the given column number as index. For functions and expressions, the getValue() method is called and for columns from the tablemodel the tablemodel method getValueAt(row, column) gets called.

Specified by:

get in interface DataRow

Specified by:

get in interface DataSet

Parameters:

col - the item index.

Returns:

the value.

Throws:

java.lang.IllegalStateException - if the datarow detected a deadlock.

DataSourceException - if an error occured.

get

public java.lang.Object get(java.lang.String col)
                     throws DataSourceException

Returns the value of the function, expression or column using its specific name. The given name is translated into a valid column number and the the column is queried. For functions and expressions, the getValue() method is called and for columns from the tablemodel the tablemodel method getValueAt(row, column) gets called.

Specified by:

get in interface DataRow

Parameters:

col - the item index.

Returns:

the value.

Throws:

java.lang.IllegalStateException - if the datarow detected a deadlock.

DataSourceException - if an error occured.

getColumnName

public java.lang.String getColumnName(int col)
                               throws DataSourceException

Returns the name of the column, expression or function. For columns from the tablemodel, the tablemodels getColumnName method is called. For functions, expressions and report properties the assigned name is returned.

Specified by:

getColumnName in interface DataRow

Specified by:

getColumnName in interface DataSet

Parameters:

col - the item index.

Returns:

the name.

Throws:

DataSourceException - if an error occured.

getColumnCount

public int getColumnCount()
                   throws DataSourceException

Returns the number of columns, expressions and functions and marked ReportProperties in the report.

Specified by:

getColumnCount in interface DataRow

Specified by:

getColumnCount in interface DataSet

Returns:

the item count.

Throws:

DataSourceException - if an error occured.

getFlags

public DataFlags getFlags(java.lang.String col)
                   throws DataSourceException

Description copied from interface: DataRow

Queries lowlevel meta-data for the current value of the specified column.

Specified by:

getFlags in interface DataRow

Parameters:

col - the colum for which to query the meta-data flags

Returns:

the dataflag collection for the value in the named column

Throws:

DataSourceException - if an error occured.

getFlags

public DataFlags getFlags(int col)
                   throws DataSourceException

Description copied from interface: DataRow

Queries lowlevel meta-data for the current value of the specified column.

Specified by:

getFlags in interface DataRow

Parameters:

col - the colum for which to query the meta-data flags

Returns:

the dataflag collection for the value in the specified column

Throws:

DataSourceException - if an error occured.