org.jfree.formula.lvalues
Class DefaultDataTable

java.lang.Object
  org.jfree.util.ObjectTable
      org.jfree.formula.lvalues.DefaultDataTable

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, DataTable, LValue

public class DefaultDataTable
extends org.jfree.util.ObjectTable
implements DataTable

Creation-Date: 05.11.2006, 13:34:01

Author:

Thomas Morgner, Cedric Pronzato

See Also:

Serialized Form

Constructor Summary

DefaultDataTable()
Creates a new table.

DefaultDataTable(LValue[][] array)

Method Summary

java.lang.Object	clone()
TypeValuePair	evaluate()
LValue[]	getChildValues() Returns any dependent lvalues (parameters and operands, mostly).
java.lang.String	getColumnName(int column)
LValue	getValueAt(int row, int column)
Type	getValueType() Querying the value type is only valid *after* the value has been evaluated.
void	initialize(FormulaContext context)
boolean	isConstant() Checks, whether the LValue is constant.
void	setObject(int row, int column, LValue object) Sets the object for a cell in the table.

Methods inherited from class org.jfree.util.ObjectTable

clear, copyColumn, copyRow, ensureCapacity, ensureRowCapacity, equals, getColumnCount, getColumnIncrement, getData, getObject, getRowCount, getRowIncrement, hashCode, readSerializedData, setData, setObject, writeSerializedData

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.jfree.formula.lvalues.DataTable

getColumnCount, getRowCount

Constructor Detail

DefaultDataTable

public DefaultDataTable()

Creates a new table.

DefaultDataTable

public DefaultDataTable(LValue[][] array)

Method Detail

getColumnName

public java.lang.String getColumnName(int column)

Specified by:

getColumnName in interface DataTable

setObject

public void setObject(int row,
                      int column,
                      LValue object)

Sets the object for a cell in the table. The table is expanded if necessary.

Parameters:

row - the row index (zero-based).

column - the column index (zero-based).

object - the object.

getValueAt

public LValue getValueAt(int row,
                         int column)

Specified by:

getValueAt in interface DataTable

initialize

public void initialize(FormulaContext context)
                throws EvaluationException

Specified by:

initialize in interface LValue

Throws:

EvaluationException

evaluate

public TypeValuePair evaluate()
                       throws EvaluationException

Specified by:

evaluate in interface LValue

Throws:

EvaluationException

clone

public java.lang.Object clone()
                       throws java.lang.CloneNotSupportedException

Specified by:

clone in interface LValue

Overrides:

clone in class java.lang.Object

Throws:

java.lang.CloneNotSupportedException

getValueType

public Type getValueType()

Querying the value type is only valid *after* the value has been evaluated.

Specified by:

getValueType in interface LValue

Returns:

getChildValues

public LValue[] getChildValues()

Returns any dependent lvalues (parameters and operands, mostly).

Specified by:

getChildValues in interface LValue

Returns:

isConstant

public boolean isConstant()

Checks, whether the LValue is constant. Constant lvalues always return the same value.

Specified by:

isConstant in interface LValue

Returns: