jxl.biff.formula
Class Attribute

java.lang.Object
  |
  +--jxl.biff.formula.ParseItem
        |
        +--jxl.biff.formula.Operator
              |
              +--jxl.biff.formula.Attribute

All Implemented Interfaces:

ParsedThing

class Attribute

extends Operator

implements ParsedThing

A special attribute control token - typically either a SUM function or an IF function

Field Summary

private static int	gotoMask
private VariableArgFunction	ifConditions If this attribute is an IF functions, sets the associated if conditions
private static int	ifMask
private int	options The options used by the attribute
private WorkbookSettings	settings The workbook settings
private static int	sumMask
private int	word The word contained in this attribute

Fields inherited from class jxl.biff.formula.Operator

operands

Fields inherited from class jxl.biff.formula.ParseItem

parent

Constructor Summary

Attribute(StringFunction sf, WorkbookSettings ws)
Constructor for use when this is called when parsing a string

Attribute(WorkbookSettings ws)
Constructor

Method Summary

(package private) byte[]	getBytes() Gets the token representation of this item in RPN.
private byte[]	getIf() Gets the associated if conditions with this attribute
void	getOperands(java.util.Stack s) Gets the operands for this operator from the stack
(package private) int	getPrecedence() Gets the precedence for this operator.
void	getString(java.lang.StringBuffer buf) Gets the string representation of this item
boolean	isFunction() Queries whether this attribute is a function
boolean	isGoto() Queries whether this attribute is a goto
boolean	isIf() Queries whether this attribute is an IF
boolean	isSum() Queries whether this attribute is a sum
int	read(byte[] data, int pos) Reads the ptg data from the array starting at the specified position
(package private) void	setIfConditions(VariableArgFunction vaf) Sets the if conditions for this attribute, if it represents an IF function

Methods inherited from class jxl.biff.formula.Operator

add, getOperands

Methods inherited from class jxl.biff.formula.ParseItem

setParent

Methods inherited from class java.lang.Object

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

Field Detail

options

private int options

The options used by the attribute

word

private int word

The word contained in this attribute

settings

private WorkbookSettings settings

The workbook settings

sumMask

private static final int sumMask

ifMask

private static final int ifMask

gotoMask

private static final int gotoMask

ifConditions

private VariableArgFunction ifConditions

If this attribute is an IF functions, sets the associated if conditions

Constructor Detail

Attribute

public Attribute(WorkbookSettings ws)

Constructor

Attribute

public Attribute(StringFunction sf,
                 WorkbookSettings ws)

Constructor for use when this is called when parsing a string

Parameters:

sf - the built in function

ws - the workbook settings

Method Detail

setIfConditions

void setIfConditions(VariableArgFunction vaf)

Sets the if conditions for this attribute, if it represents an IF function

Parameters:

vaf - a VariableArgFunction value

read

public int read(byte[] data,
                int pos)

Reads the ptg data from the array starting at the specified position

Specified by:

read in interface ParsedThing

Parameters:

data - the RPN array

pos - the current position in the array, excluding the ptg identifier

Returns:

the number of bytes read

isFunction

public boolean isFunction()

Queries whether this attribute is a function

Returns:

TRUE if this is a function, FALSE otherwise

isSum

public boolean isSum()

Queries whether this attribute is a sum

Returns:

TRUE if this is SUM, FALSE otherwise

isIf

public boolean isIf()

Queries whether this attribute is an IF

Returns:

TRUE if this is an IF, FALSE otherwise

isGoto

public boolean isGoto()

Queries whether this attribute is a goto

Returns:

TRUE if this is a goto, FALSE otherwise

getOperands

public void getOperands(java.util.Stack s)

Gets the operands for this operator from the stack

Overrides:

getOperands in class Operator

getString

public void getString(java.lang.StringBuffer buf)

Description copied from class: ParseItem

Gets the string representation of this item

Overrides:

getString in class ParseItem

Following copied from class: jxl.biff.formula.ParseItem

Parameters:

ws - the workbook settings

getBytes

byte[] getBytes()

Gets the token representation of this item in RPN. The Attribute token is a special case, which overrides anything useful we could do in the base class

Overrides:

getBytes in class ParseItem

Returns:

the bytes applicable to this formula

getIf

private byte[] getIf()

Gets the associated if conditions with this attribute

Returns:

the associated if conditions

getPrecedence

int getPrecedence()

Gets the precedence for this operator. Operator precedents run from 1 to 5, one being the highest, 5 being the lowest

Overrides:

getPrecedence in class Operator

Returns:

the operator precedence