org.zkoss.poi.xssf.streaming

Class SXSSFCell

java.lang.Object

org.zkoss.poi.xssf.streaming.SXSSFCell

All Implemented Interfaces:

Cell

public class SXSSFCell
extends java.lang.Object
implements Cell

Streaming version of XSSFRow implementing the "BigGridDemo" strategy.

Author:

Alex Geller, Four J's Development Tools

Field Summary

Fields inherited from interface org.zkoss.poi.ss.usermodel.Cell

CELL_TYPE_BLANK, CELL_TYPE_BOOLEAN, CELL_TYPE_ERROR, CELL_TYPE_FORMULA, CELL_TYPE_NUMERIC, CELL_TYPE_STRING

Constructor Summary

Constructors

Constructor and Description
SXSSFCell(SXSSFRow row, int cellType)

Method Summary

Methods

Modifier and Type	Method and Description
CellRangeAddress	getArrayFormulaRange() Only valid for array formula cells
boolean	getBooleanCellValue() Get the value of the cell as a boolean.
int	getCachedFormulaResultType() Only valid for formula cells
Comment	getCellComment() Returns comment associated with this cell
java.lang.String	getCellFormula() Return a formula for the cell, for example, SUM(C4:E4)
CellStyle	getCellStyle() Return the cell's style.
int	getCellType() Return the cell type.
int	getColumnIndex() Returns column index of this cell
java.util.Date	getDateCellValue() Get the value of the cell as a date.
byte	getErrorCellValue() Get the value of the cell as an error code.
Hyperlink	getHyperlink()
double	getNumericCellValue() Get the value of the cell as a number.
RichTextString	getRichStringCellValue() Get the value of the cell as a XSSFRichTextString For numeric cells we throw an exception.
Row	getRow() Returns the Row this cell belongs to
int	getRowIndex() Returns row index of a row in the sheet that contains this cell
Sheet	getSheet() Returns the sheet this cell belongs to
java.lang.String	getStringCellValue() Get the value of the cell as a string For numeric cells we throw an exception.
boolean	isCalcOnLoad() Old Excel spec(Used in old XLS Excel).
boolean	isPartOfArrayFormulaGroup()
void	removeCellComment() Removes the comment for this cell, if there is one.
void	setAsActiveCell() Sets this cell as the active cell for the worksheet
void	setCellComment(Comment comment) Assign a comment to this cell
void	setCellErrorValue(byte value) Set a error value for the cell
void	setCellFormula(java.lang.String formula) Sets formula for this cell.
void	setCellStyle(CellStyle style) Set the style for the cell.
void	setCellType(int cellType) Set the cells type (numeric, formula or string)
void	setCellValue(boolean value) Set a boolean value for the cell
void	setCellValue(java.util.Calendar value) Set a date value for the cell.
void	setCellValue(java.util.Date value) Converts the supplied date to its equivalent Excel numeric value and sets that into the cell.
void	setCellValue(double value) Set a numeric value for the cell
void	setCellValue(RichTextString value) Set a rich string value for the cell.
void	setCellValue(java.lang.String value) Set a string value for the cell.
void	setHyperlink(Hyperlink link) Assign a hyperlink to this cell
java.lang.String	toString() Returns a string representation of the cell Formula cells return the formula string, rather than the formula result.

Methods inherited from class java.lang.Object

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

Constructor Detail

SXSSFCell

public SXSSFCell(SXSSFRow row,
         int cellType)

Method Detail

getColumnIndex

public int getColumnIndex()

Returns column index of this cell

Specified by:

getColumnIndex in interface Cell

Returns:

zero-based column index of a column in a sheet.

getRowIndex

public int getRowIndex()

Returns row index of a row in the sheet that contains this cell

Specified by:

getRowIndex in interface Cell

Returns:

zero-based row index of a row in the sheet that contains this cell

getSheet

public Sheet getSheet()

Returns the sheet this cell belongs to

Specified by:

getSheet in interface Cell

Returns:

the sheet this cell belongs to

getRow

public Row getRow()

Returns the Row this cell belongs to

Specified by:

getRow in interface Cell

Returns:

the Row that owns this cell

setCellType

public void setCellType(int cellType)

Set the cells type (numeric, formula or string)

Specified by:

setCellType in interface Cell

Throws:

java.lang.IllegalArgumentException - if the specified cell type is invalid

See Also:

Cell.CELL_TYPE_NUMERIC, Cell.CELL_TYPE_STRING, Cell.CELL_TYPE_FORMULA, Cell.CELL_TYPE_BLANK, Cell.CELL_TYPE_BOOLEAN, Cell.CELL_TYPE_ERROR

getCellType

public int getCellType()

Return the cell type.

Specified by:

getCellType in interface Cell

Returns:

the cell type

See Also:

Cell.CELL_TYPE_BLANK, Cell.CELL_TYPE_NUMERIC, Cell.CELL_TYPE_STRING, Cell.CELL_TYPE_FORMULA, Cell.CELL_TYPE_BOOLEAN, Cell.CELL_TYPE_ERROR

getCachedFormulaResultType

public int getCachedFormulaResultType()

Only valid for formula cells

Specified by:

getCachedFormulaResultType in interface Cell

Returns:

one of (Cell.CELL_TYPE_NUMERIC, Cell.CELL_TYPE_STRING, Cell.CELL_TYPE_BOOLEAN, Cell.CELL_TYPE_ERROR) depending on the cached value of the formula

setCellValue

public void setCellValue(double value)

Set a numeric value for the cell

Specified by:

setCellValue in interface Cell

Parameters:

value - the numeric value to set this cell to. For formulas we'll set the precalculated value, for numerics we'll set its value. For other types we will change the cell to a numeric cell and set its value.

setCellValue

public void setCellValue(java.util.Date value)

Converts the supplied date to its equivalent Excel numeric value and sets that into the cell.

Note - There is actually no 'DATE' cell type in Excel. In many cases (when entering date values), Excel automatically adjusts the cell style to some date format, creating the illusion that the cell data type is now something besides Cell.CELL_TYPE_NUMERIC. POI does not attempt to replicate this behaviour. To make a numeric cell display as a date, use setCellStyle(CellStyle) etc.

Specified by:

setCellValue in interface Cell

Parameters:

value - the numeric value to set this cell to. For formulas we'll set the precalculated value, for numerics we'll set its value. For other types we will change the cell to a numerics cell and set its value.

setCellValue

public void setCellValue(java.util.Calendar value)

Set a date value for the cell. Excel treats dates as numeric so you will need to format the cell as a date.

This will set the cell value based on the Calendar's timezone. As Excel does not support timezones this means that both 20:00+03:00 and 20:00-03:00 will be reported as the same value (20:00) even that there are 6 hours difference between the two times. This difference can be preserved by using setCellValue(value.getTime()) which will automatically shift the times to the default timezone.

Specified by:

setCellValue in interface Cell

Parameters:

value - the date value to set this cell to. For formulas we'll set the precalculated value, for numerics we'll set its value. For othertypes we will change the cell to a numeric cell and set its value.

setCellValue

public void setCellValue(RichTextString value)

Set a rich string value for the cell.

Specified by:

setCellValue in interface Cell

Parameters:

value - value to set the cell to. For formulas we'll set the formula string, for String cells we'll set its value. For other types we will change the cell to a string cell and set its value. If value is null then we will change the cell to a Blank cell.

setCellValue

public void setCellValue(java.lang.String value)

Set a string value for the cell.

Specified by:

setCellValue in interface Cell

Parameters:

value - value to set the cell to. For formulas we'll set the formula string, for String cells we'll set its value. For other types we will change the cell to a string cell and set its value. If value is null then we will change the cell to a Blank cell.

setCellFormula

public void setCellFormula(java.lang.String formula)
                    throws FormulaParseException

Sets formula for this cell.

Note, this method only sets the formula string and does not calculate the formula value. To set the precalculated value use setCellValue(double) or setCellValue(String)

Specified by:

setCellFormula in interface Cell

Parameters:

formula - the formula to set, e.g. "SUM(C4:E4)". If the argument is null then the current formula is removed.

Throws:

FormulaParseException - if the formula has incorrect syntax or is otherwise invalid

getCellFormula

public java.lang.String getCellFormula()

Return a formula for the cell, for example, SUM(C4:E4)

Specified by:

getCellFormula in interface Cell

Returns:

a formula for the cell

Throws:

java.lang.IllegalStateException - if the cell type returned by getCellType() is not CELL_TYPE_FORMULA

getNumericCellValue

public double getNumericCellValue()

Get the value of the cell as a number.

For strings we throw an exception. For blank cells we return a 0. For formulas or error cells we return the precalculated value;

Specified by:

getNumericCellValue in interface Cell

Returns:

the value of the cell as a number

Throws:

java.lang.IllegalStateException - if the cell type returned by getCellType() is CELL_TYPE_STRING

java.lang.NumberFormatException - if the cell value isn't a parsable double.

See Also:

for turning this number into a string similar to that which Excel would render this number as.

getDateCellValue

public java.util.Date getDateCellValue()

Get the value of the cell as a date.

For strings we throw an exception. For blank cells we return a null.

Specified by:

getDateCellValue in interface Cell

Returns:

the value of the cell as a date

Throws:

java.lang.IllegalStateException - if the cell type returned by getCellType() is CELL_TYPE_STRING

java.lang.NumberFormatException - if the cell value isn't a parsable double.

See Also:

for formatting this date into a string similar to how excel does.

getRichStringCellValue

public RichTextString getRichStringCellValue()

Get the value of the cell as a XSSFRichTextString

For numeric cells we throw an exception. For blank cells we return an empty string. For formula cells we return the pre-calculated value if a string, otherwise an exception.

Specified by:

getRichStringCellValue in interface Cell

Returns:

the value of the cell as a XSSFRichTextString

getStringCellValue

public java.lang.String getStringCellValue()

Get the value of the cell as a string

For numeric cells we throw an exception. For blank cells we return an empty string. For formulaCells that are not string Formulas, we throw an exception.

Specified by:

getStringCellValue in interface Cell

Returns:

the value of the cell as a string

setCellValue

public void setCellValue(boolean value)

Set a boolean value for the cell

Specified by:

setCellValue in interface Cell

Parameters:

value - the boolean value to set this cell to. For formulas we'll set the precalculated value, for booleans we'll set its value. For other types we will change the cell to a boolean cell and set its value.

setCellErrorValue

public void setCellErrorValue(byte value)

Set a error value for the cell

Specified by:

setCellErrorValue in interface Cell

Parameters:

value - the error value to set this cell to. For formulas we'll set the precalculated value , for errors we'll set its value. For other types we will change the cell to an error cell and set its value.

See Also:

FormulaError

getBooleanCellValue

public boolean getBooleanCellValue()

Get the value of the cell as a boolean.

For strings, numbers, and errors, we throw an exception. For blank cells we return a false.

Specified by:

getBooleanCellValue in interface Cell

Returns:

the value of the cell as a boolean

Throws:

java.lang.IllegalStateException - if the cell type returned by getCellType() is not CELL_TYPE_BOOLEAN, CELL_TYPE_BLANK or CELL_TYPE_FORMULA

getErrorCellValue

public byte getErrorCellValue()

Get the value of the cell as an error code.

For strings, numbers, and booleans, we throw an exception. For blank cells we return a 0.

Specified by:

getErrorCellValue in interface Cell

Returns:

the value of the cell as an error code

Throws:

java.lang.IllegalStateException - if the cell type returned by getCellType() isn't CELL_TYPE_ERROR

See Also:

for error codes

setCellStyle

public void setCellStyle(CellStyle style)

Set the style for the cell. The style should be an CellStyle created/retreived from the Workbook.

Specified by:

setCellStyle in interface Cell

Parameters:

style - reference contained in the workbook. If the value is null then the style information is removed causing the cell to used the default workbook style.

See Also:

Workbook.createCellStyle()

getCellStyle

public CellStyle getCellStyle()

Return the cell's style.

Specified by:

getCellStyle in interface Cell

Returns:

the cell's style. Always not-null. Default cell style has zero index and can be obtained as workbook.getCellStyleAt(0)

See Also:

Workbook.getCellStyleAt(short)

setAsActiveCell

public void setAsActiveCell()

Sets this cell as the active cell for the worksheet

Specified by:

setAsActiveCell in interface Cell

setCellComment

public void setCellComment(Comment comment)

Assign a comment to this cell

Specified by:

setCellComment in interface Cell

Parameters:

comment - comment associated with this cell

getCellComment

public Comment getCellComment()

Returns comment associated with this cell

Specified by:

getCellComment in interface Cell

Returns:

comment associated with this cell or null if not found

removeCellComment

public void removeCellComment()

Removes the comment for this cell, if there is one.

Specified by:

removeCellComment in interface Cell

getHyperlink

public Hyperlink getHyperlink()

Specified by:

getHyperlink in interface Cell

Returns:

hyperlink associated with this cell or null if not found

setHyperlink

public void setHyperlink(Hyperlink link)

Assign a hyperlink to this cell

Specified by:

setHyperlink in interface Cell

Parameters:

link - hyperlink associated with this cell

getArrayFormulaRange

public CellRangeAddress getArrayFormulaRange()

Only valid for array formula cells

Specified by:

getArrayFormulaRange in interface Cell

Returns:

range of the array formula group that the cell belongs to.

isPartOfArrayFormulaGroup

public boolean isPartOfArrayFormulaGroup()

Specified by:

isPartOfArrayFormulaGroup in interface Cell

Returns:

true if this cell is part of group of cells having a common array formula.

toString

public java.lang.String toString()

Returns a string representation of the cell

Formula cells return the formula string, rather than the formula result. Dates are displayed in dd-MMM-yyyy format Errors are displayed as #ERR<errIdx>

Overrides:

toString in class java.lang.Object

isCalcOnLoad

public boolean isCalcOnLoad()

Description copied from interface: Cell

Old Excel spec(Used in old XLS Excel). Because we want to load cached formula result; we have to honer this flag; or we could read in incorrect cached results! (ZSS-873: issue/book/492-movesheet.xls)

Specified by:

isCalcOnLoad in interface Cell

Returns:

true if need calcOnLoad for the cell.