HSSFWorkbook (POI API Documentation)

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org.apache.poi.hssf.usermodel
Class HSSFWorkbook

java.lang.Object
  org.apache.poi.POIDocument
      org.apache.poi.hssf.usermodel.HSSFWorkbook

All Implemented Interfaces:: java.io.Closeable, java.lang.Iterable<Sheet>, Workbook

public final class HSSFWorkbook
extends POIDocument
implements Workbook
extends POIDocument
implements Workbook

High level representation of a workbook. This is the first object most users will construct whether they are reading or writing a workbook. It is also the top level object for creating new sheets/etc.

See Also:: InternalWorkbook, HSSFSheet

Field Summary
`protected java.util.List<HSSFSheet>`	`_sheets` this holds the HSSFSheet objects attached to this workbook
`static int`	`INITIAL_CAPACITY` used for compile-time performance/memory optimization.

Fields inherited from interface org.apache.poi.ss.usermodel.Workbook
`PICTURE_TYPE_DIB, PICTURE_TYPE_EMF, PICTURE_TYPE_JPEG, PICTURE_TYPE_PICT, PICTURE_TYPE_PNG, PICTURE_TYPE_WMF, SHEET_STATE_HIDDEN, SHEET_STATE_VERY_HIDDEN, SHEET_STATE_VISIBLE`

Constructor Summary
`HSSFWorkbook()` Creates new HSSFWorkbook from scratch (start here!)
`HSSFWorkbook(DirectoryNode directory, boolean preserveNodes)` given a POI POIFSFileSystem object, and a specific directory within it, read in its Workbook and populate the high and low level models.
`HSSFWorkbook(DirectoryNode directory, POIFSFileSystem fs, boolean preserveNodes)` given a POI POIFSFileSystem object, and a specific directory within it, read in its Workbook and populate the high and low level models.
`HSSFWorkbook(java.io.InputStream s)` Companion to HSSFWorkbook(POIFSFileSystem), this constructs the POI filesystem around your `InputStream`, including all nodes.
`HSSFWorkbook(java.io.InputStream s, boolean preserveNodes)` Companion to HSSFWorkbook(POIFSFileSystem), this constructs the POI filesystem around your `InputStream`.
`HSSFWorkbook(NPOIFSFileSystem fs)` Given a POI POIFSFileSystem object, read in its Workbook along with all related nodes, and populate the high and low level models.
`HSSFWorkbook(POIFSFileSystem fs)` Given a POI POIFSFileSystem object, read in its Workbook along with all related nodes, and populate the high and low level models.
`HSSFWorkbook(POIFSFileSystem fs, boolean preserveNodes)` Given a POI POIFSFileSystem object, read in its Workbook and populate the high and low level models.

Method Summary
`int`	`addOlePackage(byte[] oleData, java.lang.String label, java.lang.String fileName, java.lang.String command)` Adds an OLE package manager object with the given content to the sheet
`int`	`addOlePackage(POIFSFileSystem poiData, java.lang.String label, java.lang.String fileName, java.lang.String command)` Adds an OLE package manager object with the given POIFS to the sheet
`int`	`addPicture(byte[] pictureData, int format)` Adds a picture to the workbook.
`void`	`addToolPack(UDFFinder toopack)` Register a new toolpack in this workbook.
`boolean`	`changeExternalReference(java.lang.String oldUrl, java.lang.String newUrl)` Changes an external referenced file to another file.
`HSSFSheet`	`cloneSheet(int sheetIndex)` create an HSSFSheet from an existing sheet in the HSSFWorkbook.
`void`	`close()` Closes the underlying `NPOIFSFileSystem` from which the Workbook was read, if any.
`static HSSFWorkbook`	`create(InternalWorkbook book)`
`HSSFCellStyle`	`createCellStyle()` Create a new Cell style and add it to the workbook's style table.
`HSSFDataFormat`	`createDataFormat()` Returns the instance of HSSFDataFormat for this workbook.
`HSSFFont`	`createFont()` create a new Font and add it to the workbook's font table
`HSSFName`	`createName()` creates a new named range and add it to the model
`HSSFSheet`	`createSheet()` create an HSSFSheet for this HSSFWorkbook, adds it to the sheets and returns the high level representation.
`HSSFSheet`	`createSheet(java.lang.String sheetname)` Create a new sheet for this Workbook and return the high level representation.
`void`	`dumpDrawingGroupRecords(boolean fat)` Spits out a list of all the drawing records in the workbook.
`protected void`	`encryptBytes(byte[] buf)`
`HSSFFont`	`findFont(boolean bold, short color, short fontHeight, java.lang.String name, boolean italic, boolean strikeout, short typeOffset, byte underline)` Finds a font that matches the one with the supplied attributes
`int`	`getActiveSheetIndex()` gets the tab whose data is actually seen when the sheet is opened.
`java.util.List<HSSFObjectData>`	`getAllEmbeddedObjects()` Gets all embedded OLE2 objects from the Workbook.
`java.util.List<HSSFName>`	`getAllNames()` Returns all defined names.
`java.util.List<HSSFPictureData>`	`getAllPictures()` Gets all pictures from the Workbook.
`boolean`	`getBackupFlag()` determine whether the Excel GUI will backup the workbook when saving.
`byte[]`	`getBytes()` Method getBytes - get the bytes of just the HSSF portions of the XLS file.
`HSSFCellStyle`	`getCellStyleAt(int idx)` get the cell style object at the given index
`HSSFCreationHelper`	`getCreationHelper()` Returns an object that handles instantiating concrete classes of the various instances one needs for HSSF and XSSF.
`HSSFPalette`	`getCustomPalette()`
`EncryptionInfo`	`getEncryptionInfo()`
`int`	`getFirstVisibleTab()` sets the first tab that is displayed in the list of tabs in excel.
`HSSFFont`	`getFontAt(short idx)` Get the font at the given index number
`boolean`	`getForceFormulaRecalculation()` Whether Excel will be asked to recalculate all formulas when the workbook is opened.
`InternalWorkbook`	`getInternalWorkbook()`
`Row.MissingCellPolicy`	`getMissingCellPolicy()` Retrieves the current policy on what to do when getting missing or blank cells from a row.
`HSSFName`	`getName(java.lang.String name)`
`HSSFName`	`getNameAt(int nameIndex)`
`int`	`getNameIndex(java.lang.String name)` Gets the defined name index by name Note: Excel defined names are case-insensitive and this method performs a case-insensitive search.
`java.lang.String`	`getNameName(int index)` gets the named range name
`NameRecord`	`getNameRecord(int nameIndex)`
`java.util.List<HSSFName>`	`getNames(java.lang.String name)` Returns all defined names with the given name.
`short`	`getNumberOfFonts()` get the number of fonts in the font table
`int`	`getNumberOfNames()`
`int`	`getNumberOfSheets()` get the number of spreadsheets in the workbook (this will be three after serialization)
`int`	`getNumCellStyles()` get the number of styles the workbook contains
`protected static java.util.Map<java.lang.String,ClassID>`	`getOleMap()`
`java.lang.String`	`getPrintArea(int sheetIndex)` Retrieves the reference for the printarea of the specified sheet, the sheet name is appended to the reference even if it was not specified.
`DirectoryNode`	`getRootDirectory()` Deprecated. POI 3.16 beta 1. use `POIDocument.getDirectory()` instead
`java.util.Collection<java.lang.Integer>`	`getSelectedTabs()` Gets the selected sheets (if more than one, Excel calls these a [Group]).
`HSSFSheet`	`getSheet(java.lang.String name)` Get sheet with the given name (case insensitive match)
`HSSFSheet`	`getSheetAt(int index)` Get the HSSFSheet object at the given index.
`int`	`getSheetIndex(Sheet sheet)` Returns the index of the given sheet
`int`	`getSheetIndex(java.lang.String name)` Returns the index of the sheet by his name
`java.lang.String`	`getSheetName(int sheetIndex)` Get the sheet name
`SheetVisibility`	`getSheetVisibility(int sheetIx)` Get the visibility (visible, hidden, very hidden) of a sheet in this workbook
`SpreadsheetVersion`	`getSpreadsheetVersion()` Returns the spreadsheet version (EXCLE97) of this workbook
`static java.lang.String`	`getWorkbookDirEntryName(DirectoryNode directory)`
`void`	`insertChartRecord()` Test only.
`boolean`	`isHidden()`
`boolean`	`isSheetHidden(int sheetIx)` Check whether a sheet is hidden.
`boolean`	`isSheetVeryHidden(int sheetIx)` Check whether a sheet is very hidden.
`boolean`	`isWriteProtected()` Is the workbook protected with a password (not encrypted)?
`java.util.Iterator<Sheet>`	`iterator()` Alias for `sheetIterator()` to allow foreach loops
`int`	`linkExternalWorkbook(java.lang.String name, Workbook workbook)` Adds the LinkTable records required to allow formulas referencing the specified external workbook to be added to this one.
`void`	`removeName(int index)` Remove the defined name at the specified index
`void`	`removeName(Name name)` As `removeName(String)` is not necessarily unique (name + sheet index is unique), this method is more accurate.
`void`	`removeName(java.lang.String name)` Remove a defined name by name
`void`	`removePrintArea(int sheetIndex)` Delete the printarea for the sheet specified
`void`	`removeSheetAt(int index)` Removes sheet at the given index.
`protected void`	`resetFontCache()` Reset the fonts cache, causing all new calls to getFontAt() to create new objects.
`void`	`setActiveSheet(int index)` Convenience method to set the active sheet.
`void`	`setBackupFlag(boolean backupValue)` determine whether the Excel GUI will backup the workbook when saving.
`void`	`setFirstVisibleTab(int index)` sets the first tab that is displayed in the list of tabs in excel.
`void`	`setForceFormulaRecalculation(boolean value)` Whether the application shall perform a full recalculation when the workbook is opened.
`void`	`setHidden(boolean hiddenFlag)`
`void`	`setMissingCellPolicy(Row.MissingCellPolicy missingCellPolicy)` Sets the policy on what to do when getting missing or blank cells from a row.
`void`	`setPrintArea(int sheetIndex, int startColumn, int endColumn, int startRow, int endRow)` For the Convenience of Java Programmers maintaining pointers.
`void`	`setPrintArea(int sheetIndex, java.lang.String reference)` Sets the printarea for the sheet provided
`void`	`setSelectedTab(int index)` Selects a single sheet.
`void`	`setSelectedTabs(java.util.Collection<java.lang.Integer> indexes)` Selects multiple sheets as a group.
`void`	`setSelectedTabs(int[] indexes)` Selects multiple sheets as a group.
`void`	`setSheetHidden(int sheetIx, boolean hidden)` Hide or unhide a sheet.
`void`	`setSheetHidden(int sheetIx, int hidden)` Deprecated.
`void`	`setSheetName(int sheetIx, java.lang.String name)` Set the sheet name.
`void`	`setSheetOrder(java.lang.String sheetname, int pos)` sets the order of appearance for a given sheet.
`void`	`setSheetVisibility(int sheetIx, SheetVisibility visibility)` Hide or unhide a sheet.
`java.util.Iterator<Sheet>`	`sheetIterator()` Returns an iterator of the sheets in the workbook in sheet order.
`void`	`unwriteProtectWorkbook()` removes the write protect flag
`void`	`write()` Write out this workbook to the currently open `File` via the writeable `POIFSFileSystem` it was opened as.
`void`	`write(java.io.File newFile)` Method write - write out this workbook to a new `File`.
`void`	`write(java.io.OutputStream stream)` Method write - write out this workbook to an `OutputStream`.
`void`	`writeProtectWorkbook(java.lang.String password, java.lang.String username)` protect a workbook with a password (not encypted, just sets writeprotect flags and the password.

Methods inherited from class org.apache.poi.POIDocument
`clearDirectory, createInformationProperties, getDirectory, getDocumentSummaryInformation, getEncryptedPropertyStreamName, getPropertySet, getPropertySet, getSummaryInformation, initDirectory, readProperties, replaceDirectory, validateInPlaceWritePossible, writeProperties, writeProperties, writeProperties, writePropertySet`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

INITIAL_CAPACITY

public static final int INITIAL_CAPACITY

used for compile-time performance/memory optimization. This determines the initial capacity for the sheet collection. Its currently set to 3. Changing it in this release will decrease performance since you're never allowed to have more or less than three sheets!

_sheets

protected java.util.List<HSSFSheet> _sheets

this holds the HSSFSheet objects attached to this workbook

Constructor Detail

HSSFWorkbook

public HSSFWorkbook()

Creates new HSSFWorkbook from scratch (start here!)

HSSFWorkbook

public HSSFWorkbook(POIFSFileSystem fs)
             throws java.io.IOException

Given a POI POIFSFileSystem object, read in its Workbook along with all related nodes, and populate the high and low level models.

This calls HSSFWorkbook(POIFSFileSystem, boolean) with preserve nodes set to true.

Throws:: java.io.IOException - if the stream cannot be read
See Also:: HSSFWorkbook(POIFSFileSystem, boolean), POIFSFileSystem

HSSFWorkbook

public HSSFWorkbook(NPOIFSFileSystem fs)
             throws java.io.IOException

Given a POI POIFSFileSystem object, read in its Workbook along with all related nodes, and populate the high and low level models.

This calls HSSFWorkbook(POIFSFileSystem, boolean) with preserve nodes set to true.

Throws:: java.io.IOException - if the stream cannot be read
See Also:: HSSFWorkbook(POIFSFileSystem, boolean), POIFSFileSystem

HSSFWorkbook

public HSSFWorkbook(POIFSFileSystem fs,
                    boolean preserveNodes)
             throws java.io.IOException

Given a POI POIFSFileSystem object, read in its Workbook and populate the high and low level models. If you're reading in a workbook... start here!

Parameters:: fs - the POI filesystem that contains the Workbook stream.; preserveNodes - whether to preserve other nodes, such as macros. This takes more memory, so only say yes if you need to. If set, will store all of the POIFSFileSystem in memory
Throws:: java.io.IOException - if the stream cannot be read
See Also:: POIFSFileSystem

HSSFWorkbook

public HSSFWorkbook(DirectoryNode directory,
                    POIFSFileSystem fs,
                    boolean preserveNodes)
             throws java.io.IOException

given a POI POIFSFileSystem object, and a specific directory within it, read in its Workbook and populate the high and low level models. If you're reading in a workbook...start here.

Parameters:: directory - the POI filesystem directory to process from; fs - the POI filesystem that contains the Workbook stream.; preserveNodes - whether to preserve other nodes, such as macros. This takes more memory, so only say yes if you need to. If set, will store all of the POIFSFileSystem in memory
Throws:: java.io.IOException - if the stream cannot be read
See Also:: POIFSFileSystem

HSSFWorkbook

public HSSFWorkbook(DirectoryNode directory,
                    boolean preserveNodes)
             throws java.io.IOException

given a POI POIFSFileSystem object, and a specific directory within it, read in its Workbook and populate the high and low level models. If you're reading in a workbook...start here.

Parameters:: directory - the POI filesystem directory to process from; preserveNodes - whether to preserve other nodes, such as macros. This takes more memory, so only say yes if you need to. If set, will store all of the POIFSFileSystem in memory
Throws:: java.io.IOException - if the stream cannot be read
See Also:: POIFSFileSystem

HSSFWorkbook

public HSSFWorkbook(java.io.InputStream s)
             throws java.io.IOException

Companion to HSSFWorkbook(POIFSFileSystem), this constructs the POI filesystem around your InputStream, including all nodes.

This calls HSSFWorkbook(InputStream, boolean) with preserve nodes set to true.

Throws:: java.io.IOException - if the stream cannot be read
See Also:: HSSFWorkbook(InputStream, boolean), HSSFWorkbook(POIFSFileSystem), POIFSFileSystem

HSSFWorkbook

public HSSFWorkbook(java.io.InputStream s,
                    boolean preserveNodes)
             throws java.io.IOException

Companion to HSSFWorkbook(POIFSFileSystem), this constructs the POI filesystem around your InputStream.

Parameters:: s - the POI filesystem that contains the Workbook stream.; preserveNodes - whether to preserve other nodes, such as macros. This takes more memory, so only say yes if you need to.
Throws:: java.io.IOException - if the stream cannot be read
See Also:: POIFSFileSystem, HSSFWorkbook(POIFSFileSystem)

Method Detail

create

public static HSSFWorkbook create(InternalWorkbook book)

getWorkbookDirEntryName

public static java.lang.String getWorkbookDirEntryName(DirectoryNode directory)

getMissingCellPolicy

public Row.MissingCellPolicy getMissingCellPolicy()

Retrieves the current policy on what to do when getting missing or blank cells from a row. The default is to return blank and null cells. Row.MissingCellPolicy

Specified by:: getMissingCellPolicy in interface Workbook

setMissingCellPolicy

public void setMissingCellPolicy(Row.MissingCellPolicy missingCellPolicy)

Sets the policy on what to do when getting missing or blank cells from a row. This will then apply to all calls to HSSFRow.getCell(int)}. See Row.MissingCellPolicy. Note that this has no effect on any iterators, only on when fetching Cells by their column index.

Specified by:: setMissingCellPolicy in interface Workbook

setSheetOrder

public void setSheetOrder(java.lang.String sheetname,
                          int pos)

sets the order of appearance for a given sheet.

Specified by:: setSheetOrder in interface Workbook

Parameters:: sheetname - the name of the sheet to reorder; pos - the position that we want to insert the sheet into (0 based)

setSelectedTab

public void setSelectedTab(int index)

Selects a single sheet. This may be different to the 'active' sheet (which is the sheet with focus).

Specified by:: setSelectedTab in interface Workbook

Parameters:: index - the index of the sheet to select (0 based)
See Also:: Sheet.setSelected(boolean)

setSelectedTabs

public void setSelectedTabs(int[] indexes)

Selects multiple sheets as a group. This is distinct from the 'active' sheet (which is the sheet with focus). Unselects sheets that are not in indexes.

Parameters:: indexes - Array of sheets to select, the index is 0-based.

setSelectedTabs

public void setSelectedTabs(java.util.Collection<java.lang.Integer> indexes)

Selects multiple sheets as a group. This is distinct from the 'active' sheet (which is the sheet with focus). Unselects sheets that are not in indexes.

Parameters:: indexes - Collection of sheets to select, the index is 0-based.

getSelectedTabs

public java.util.Collection<java.lang.Integer> getSelectedTabs()

Gets the selected sheets (if more than one, Excel calls these a [Group]).

Returns:: indices of selected sheets

setActiveSheet

public void setActiveSheet(int index)

Convenience method to set the active sheet. The active sheet is is the sheet which is currently displayed when the workbook is viewed in Excel. 'Selected' sheet(s) is a distinct concept.

Specified by:: setActiveSheet in interface Workbook

Parameters:: index - index of the active sheet (0-based)

getActiveSheetIndex

public int getActiveSheetIndex()

gets the tab whose data is actually seen when the sheet is opened. This may be different from the "selected sheet" since excel seems to allow you to show the data of one sheet when another is seen "selected" in the tabs (at the bottom).

Specified by:: getActiveSheetIndex in interface Workbook

Returns:: the index of the active sheet (0-based)
See Also:: HSSFSheet.setSelected(boolean)

setFirstVisibleTab

public void setFirstVisibleTab(int index)

sets the first tab that is displayed in the list of tabs in excel. This method does not hide, select or focus sheets. It just sets the scroll position in the tab-bar.

Specified by:: setFirstVisibleTab in interface Workbook

Parameters:: index - the sheet index of the tab that will become the first in the tab-bar

getFirstVisibleTab

public int getFirstVisibleTab()

sets the first tab that is displayed in the list of tabs in excel.

Specified by:: getFirstVisibleTab in interface Workbook

Returns:: the first tab that to display in the list of tabs (0-based).

setSheetName

public void setSheetName(int sheetIx,
                         java.lang.String name)

Set the sheet name.

Specified by:: setSheetName in interface Workbook

Parameters:: sheetIx - number (0 based)
Throws:: java.lang.IllegalArgumentException - if the name is null or invalid or workbook already contains a sheet with this name
See Also:: createSheet(String), WorkbookUtil.createSafeSheetName(String nameProposal)

getSheetName

public java.lang.String getSheetName(int sheetIndex)

Description copied from interface: Workbook

Get the sheet name

Specified by:: getSheetName in interface Workbook

Parameters:: sheetIndex - sheet number (0 based)
Returns:: Sheet name for the specified index

isHidden

public boolean isHidden()

Specified by:: isHidden in interface Workbook

Returns:: false if this workbook is not visible in the GUI

setHidden

public void setHidden(boolean hiddenFlag)

Specified by:: setHidden in interface Workbook

Parameters:: hiddenFlag - pass false to make the workbook visible in the GUI

isSheetHidden

public boolean isSheetHidden(int sheetIx)

Description copied from interface: Workbook

Check whether a sheet is hidden.

Note that a sheet could instead be set to be very hidden, which is different (Workbook.isSheetVeryHidden(int))

Specified by:: isSheetHidden in interface Workbook

Parameters:: sheetIx - Number
Returns:: true if sheet is hidden
See Also:: Workbook.getSheetVisibility(int)

isSheetVeryHidden

public boolean isSheetVeryHidden(int sheetIx)

Description copied from interface: Workbook

Check whether a sheet is very hidden.

This is different from the normal hidden status (Workbook.isSheetHidden(int))

Specified by:: isSheetVeryHidden in interface Workbook

Parameters:: sheetIx - sheet index to check
Returns:: true if sheet is very hidden
See Also:: Workbook.getSheetVisibility(int)

getSheetVisibility

public SheetVisibility getSheetVisibility(int sheetIx)

Description copied from interface: Workbook

Get the visibility (visible, hidden, very hidden) of a sheet in this workbook

Specified by:: getSheetVisibility in interface Workbook

Parameters:: sheetIx - the index of the sheet
Returns:: the sheet visibility

setSheetHidden

public void setSheetHidden(int sheetIx,
                           boolean hidden)

Description copied from interface: Workbook

Hide or unhide a sheet. Please note that the sheet currently set as active sheet (sheet 0 in a newly created workbook or the one set via setActiveSheet()) cannot be hidden.

Specified by:: setSheetHidden in interface Workbook

Parameters:: sheetIx - the sheet index (0-based); hidden - True to mark the sheet as hidden, false otherwise
See Also:: Workbook.setSheetVisibility(int, SheetVisibility)

setSheetHidden

@Removal(version="3.18")
@Deprecated
public void setSheetHidden(int sheetIx,
                                                     int hidden)

Deprecated.

Description copied from interface: Workbook

Hide or unhide a sheet.

0 - visible.
1 - hidden.
2 - very hidden.

Please note that the sheet currently set as active sheet (sheet 0 in a newly created workbook or the one set via setActiveSheet()) cannot be hidden.

Specified by:: setSheetHidden in interface Workbook

Parameters:: sheetIx - the sheet index (0-based); hidden - one of the following Workbook constants: Workbook.SHEET_STATE_VISIBLE, Workbook.SHEET_STATE_HIDDEN, or Workbook.SHEET_STATE_VERY_HIDDEN.

setSheetVisibility

public void setSheetVisibility(int sheetIx,
                               SheetVisibility visibility)

Description copied from interface: Workbook

Hide or unhide a sheet. Please note that the sheet currently set as active sheet (sheet 0 in a newly created workbook or the one set via setActiveSheet()) cannot be hidden.

Specified by:: setSheetVisibility in interface Workbook

Parameters:: sheetIx - the sheet index (0-based); visibility - the sheet visibility to set

getSheetIndex

public int getSheetIndex(java.lang.String name)

Returns the index of the sheet by his name

Specified by:: getSheetIndex in interface Workbook

Parameters:: name - the sheet name
Returns:: index of the sheet (0 based)

getSheetIndex

public int getSheetIndex(Sheet sheet)

Returns the index of the given sheet

Specified by:: getSheetIndex in interface Workbook

Parameters:: sheet - the sheet to look up
Returns:: index of the sheet (0 based). -1 if not found

createSheet

public HSSFSheet createSheet()

create an HSSFSheet for this HSSFWorkbook, adds it to the sheets and returns the high level representation. Use this to create new sheets.

Specified by:: createSheet in interface Workbook

Returns:: HSSFSheet representing the new sheet.

cloneSheet

public HSSFSheet cloneSheet(int sheetIndex)

create an HSSFSheet from an existing sheet in the HSSFWorkbook.

Specified by:: cloneSheet in interface Workbook

Returns:: HSSFSheet representing the cloned sheet.

createSheet

public HSSFSheet createSheet(java.lang.String sheetname)

Create a new sheet for this Workbook and return the high level representation. Use this to create new sheets.

Note that Excel allows sheet names up to 31 chars in length but other applications (such as OpenOffice) allow more. Some versions of Excel crash with names longer than 31 chars, others - truncate such names to 31 character.

POI's SpreadsheetAPI silently truncates the input argument to 31 characters. Example:


     Sheet sheet = workbook.createSheet("My very long sheet name which is longer than 31 chars"); // will be truncated
     assert 31 == sheet.getSheetName().length();
     assert "My very long sheet name which i" == sheet.getSheetName();

Except the 31-character constraint, Excel applies some other rules:

Sheet name MUST be unique in the workbook and MUST NOT contain the any of the following characters:

0x0000
0x0003
colon (:)
backslash (\)
asterisk (*)
question mark (?)
forward slash (/)
opening square bracket ([)
closing square bracket (])

The string MUST NOT begin or end with the single quote (') character.

Specified by:: createSheet in interface Workbook

Parameters:: sheetname - sheetname to set for the sheet.
Returns:: Sheet representing the new sheet.
Throws:: java.lang.IllegalArgumentException - if the name is null or invalid or workbook already contains a sheet with this name
See Also:: WorkbookUtil.createSafeSheetName(String nameProposal)

sheetIterator

public java.util.Iterator<Sheet> sheetIterator()

Returns an iterator of the sheets in the workbook in sheet order. Includes hidden and very hidden sheets.

Specified by:: sheetIterator in interface Workbook

Returns:: an iterator of the sheets.

iterator

public java.util.Iterator<Sheet> iterator()

Alias for sheetIterator() to allow foreach loops

Specified by:: iterator in interface java.lang.Iterable<Sheet>

getNumberOfSheets

public int getNumberOfSheets()

get the number of spreadsheets in the workbook (this will be three after serialization)

Specified by:: getNumberOfSheets in interface Workbook

Returns:: number of sheets

getSheetAt

public HSSFSheet getSheetAt(int index)

Get the HSSFSheet object at the given index.

Specified by:: getSheetAt in interface Workbook

Parameters:: index - of the sheet number (0-based physical & logical)
Returns:: HSSFSheet at the provided index
Throws:: java.lang.IllegalArgumentException - if the index is out of range (index < 0 || index >= getNumberOfSheets()).

getSheet

public HSSFSheet getSheet(java.lang.String name)

Get sheet with the given name (case insensitive match)

Specified by:: getSheet in interface Workbook

Parameters:: name - of the sheet
Returns:: HSSFSheet with the name provided or null if it does not exist

removeSheetAt

public void removeSheetAt(int index)

Removes sheet at the given index.

Care must be taken if the removed sheet is the currently active or only selected sheet in the workbook. There are a few situations when Excel must have a selection and/or active sheet. (For example when printing - see Bug 40414).
This method makes sure that if the removed sheet was active, another sheet will become active in its place. Furthermore, if the removed sheet was the only selected sheet, another sheet will become selected. The newly active/selected sheet will have the same index, or one less if the removed sheet was the last in the workbook.

Specified by:: removeSheetAt in interface Workbook

Parameters:: index - of the sheet (0-based)

setBackupFlag

public void setBackupFlag(boolean backupValue)

determine whether the Excel GUI will backup the workbook when saving.

Parameters:: backupValue - true to indicate a backup will be performed.

getBackupFlag

public boolean getBackupFlag()

determine whether the Excel GUI will backup the workbook when saving.

Returns:: the current setting for backups.

createFont

public HSSFFont createFont()

create a new Font and add it to the workbook's font table

Specified by:: createFont in interface Workbook

Returns:: new font object

findFont

public HSSFFont findFont(boolean bold,
                         short color,
                         short fontHeight,
                         java.lang.String name,
                         boolean italic,
                         boolean strikeout,
                         short typeOffset,
                         byte underline)

Finds a font that matches the one with the supplied attributes

Specified by:: findFont in interface Workbook

Returns:: the font with the matched attributes or null

getNumberOfFonts

public short getNumberOfFonts()

get the number of fonts in the font table

Specified by:: getNumberOfFonts in interface Workbook

Returns:: number of fonts

getFontAt

public HSSFFont getFontAt(short idx)

Get the font at the given index number

Specified by:: getFontAt in interface Workbook

Parameters:: idx - index number
Returns:: HSSFFont at the index

resetFontCache

protected void resetFontCache()

Reset the fonts cache, causing all new calls to getFontAt() to create new objects. Should only be called after deleting fonts, and that's not something you should normally do

createCellStyle

public HSSFCellStyle createCellStyle()

Create a new Cell style and add it to the workbook's style table. You can define up to 4000 unique styles in a .xls workbook.

Specified by:: createCellStyle in interface Workbook

Returns:: the new Cell Style object
Throws:: java.lang.IllegalStateException - if the number of cell styles exceeded the limit for this type of Workbook.

getNumCellStyles

public int getNumCellStyles()

get the number of styles the workbook contains

Specified by:: getNumCellStyles in interface Workbook

Returns:: count of cell styles

getCellStyleAt

public HSSFCellStyle getCellStyleAt(int idx)

get the cell style object at the given index

Specified by:: getCellStyleAt in interface Workbook

Parameters:: idx - index within the set of styles
Returns:: HSSFCellStyle object at the index

close

public void close()
           throws java.io.IOException

Closes the underlying NPOIFSFileSystem from which the Workbook was read, if any.

Once this has been called, no further operations, updates or reads should be performed on the Workbook.

Specified by:: close in interface java.io.Closeable
Specified by:: close in interface Workbook
Overrides:: close in class POIDocument

Throws:: java.io.IOException

write

public void write()
           throws java.io.IOException

Write out this workbook to the currently open File via the writeable POIFSFileSystem it was opened as.

This will fail (with an IllegalStateException if the Workbook was opened read-only, opened from an InputStream instead of a File, or if this is not the root document. For those cases, you must use write(OutputStream) or write(File) to write to a brand new document.

Specified by:: write in class POIDocument

Throws:: java.io.IOException - thrown on errors writing to the file

write

public void write(java.io.File newFile)
           throws java.io.IOException

Method write - write out this workbook to a new File. Constructs a new POI POIFSFileSystem, passes in the workbook binary representation and writes it out. If the file exists, it will be replaced, otherwise a new one will be created. Note that you cannot write to the currently open File using this method. If you opened your Workbook from a File, you must use the write() method instead!

Specified by:: write in class POIDocument

Parameters:: newFile - The new File you wish to write the XLS to
Throws:: java.io.IOException - if anything can't be written.
See Also:: POIFSFileSystem

write

public void write(java.io.OutputStream stream)
           throws java.io.IOException

Method write - write out this workbook to an OutputStream. Constructs a new POI POIFSFileSystem, passes in the workbook binary representation and writes it out. If stream is a FileOutputStream on a networked drive or has a high cost/latency associated with each written byte, consider wrapping the OutputStream in a BufferedOutputStream to improve write performance.

Specified by:: write in interface Workbook
Specified by:: write in class POIDocument

Parameters:: stream - - the java OutputStream you wish to write the XLS to
Throws:: java.io.IOException - if anything can't be written.
See Also:: POIFSFileSystem

getBytes

public byte[] getBytes()

Method getBytes - get the bytes of just the HSSF portions of the XLS file. Use this to construct a POI POIFSFileSystem yourself.

Returns:: byte[] array containing the binary representation of this workbook and all contained sheets, rows, cells, etc.

encryptBytes

protected void encryptBytes(byte[] buf)

getNumberOfNames

public int getNumberOfNames()

Specified by:: getNumberOfNames in interface Workbook

Returns:: the total number of defined names in this workbook

getName

public HSSFName getName(java.lang.String name)

Specified by:: getName in interface Workbook

Parameters:: name - the name of the defined name
Returns:: the defined name with the specified name. null if not found.

getNames

public java.util.List<HSSFName> getNames(java.lang.String name)

Description copied from interface: Workbook

Returns all defined names with the given name.

Specified by:: getNames in interface Workbook

Parameters:: name - the name of the defined name
Returns:: a list of the defined names with the specified name. An empty list is returned if none is found.

getNameAt

public HSSFName getNameAt(int nameIndex)

Specified by:: getNameAt in interface Workbook

Parameters:: nameIndex - position of the named range (0-based)
Returns:: the defined name at the specified index

getAllNames

public java.util.List<HSSFName> getAllNames()

Description copied from interface: Workbook

Returns all defined names.

Specified by:: getAllNames in interface Workbook

Returns:: a list of the defined names. An empty list is returned if none is found.

getNameRecord

public NameRecord getNameRecord(int nameIndex)

getNameName

public java.lang.String getNameName(int index)

gets the named range name

Parameters:: index - the named range index (0 based)
Returns:: named range name

setPrintArea

public void setPrintArea(int sheetIndex,
                         java.lang.String reference)

Sets the printarea for the sheet provided

i.e. Reference = $A$1:$B$2

Specified by:: setPrintArea in interface Workbook

Parameters:: sheetIndex - Zero-based sheet index (0 Represents the first sheet to keep consistent with java); reference - Valid name Reference for the Print Area

setPrintArea

public void setPrintArea(int sheetIndex,
                         int startColumn,
                         int endColumn,
                         int startRow,
                         int endRow)

For the Convenience of Java Programmers maintaining pointers.

Specified by:: setPrintArea in interface Workbook

Parameters:: sheetIndex - Zero-based sheet index (0 = First Sheet); startColumn - Column to begin printarea; endColumn - Column to end the printarea; startRow - Row to begin the printarea; endRow - Row to end the printarea
See Also:: setPrintArea(int, String)

getPrintArea

public java.lang.String getPrintArea(int sheetIndex)

Retrieves the reference for the printarea of the specified sheet, the sheet name is appended to the reference even if it was not specified.

Specified by:: getPrintArea in interface Workbook

Parameters:: sheetIndex - Zero-based sheet index (0 Represents the first sheet to keep consistent with java)
Returns:: String Null if no print area has been defined

removePrintArea

public void removePrintArea(int sheetIndex)

Delete the printarea for the sheet specified

Specified by:: removePrintArea in interface Workbook

Parameters:: sheetIndex - Zero-based sheet index (0 = First Sheet)

createName

public HSSFName createName()

creates a new named range and add it to the model

Specified by:: createName in interface Workbook

Returns:: named range high level

getNameIndex

public int getNameIndex(java.lang.String name)

Description copied from interface: Workbook

Gets the defined name index by name
Note: Excel defined names are case-insensitive and this method performs a case-insensitive search.

Specified by:: getNameIndex in interface Workbook

Parameters:: name - the name of the defined name
Returns:: zero based index of the defined name. -1 if not found.

removeName

public void removeName(int index)

Description copied from interface: Workbook

Remove the defined name at the specified index

Specified by:: removeName in interface Workbook

Parameters:: index - named range index (0 based)

createDataFormat

public HSSFDataFormat createDataFormat()

Returns the instance of HSSFDataFormat for this workbook.

Specified by:: createDataFormat in interface Workbook

Returns:: the HSSFDataFormat object
See Also:: FormatRecord, Record

removeName

public void removeName(java.lang.String name)

Description copied from interface: Workbook

Remove a defined name by name

Specified by:: removeName in interface Workbook

Parameters:: name - the name of the defined name

removeName

public void removeName(Name name)

As removeName(String) is not necessarily unique (name + sheet index is unique), this method is more accurate.

Specified by:: removeName in interface Workbook

Parameters:: name - the name to remove.

getCustomPalette

public HSSFPalette getCustomPalette()

insertChartRecord

public void insertChartRecord()

Test only. Do not use

dumpDrawingGroupRecords

public void dumpDrawingGroupRecords(boolean fat)

Spits out a list of all the drawing records in the workbook.

addPicture

public int addPicture(byte[] pictureData,
                      int format)

Adds a picture to the workbook.

Specified by:: addPicture in interface Workbook

Parameters:: pictureData - The bytes of the picture; format - The format of the picture. One of PICTURE_TYPE_*
Returns:: the index to this picture (1 based).
See Also:: Workbook.PICTURE_TYPE_WMF, Workbook.PICTURE_TYPE_EMF, Workbook.PICTURE_TYPE_PICT, Workbook.PICTURE_TYPE_PNG, Workbook.PICTURE_TYPE_JPEG, Workbook.PICTURE_TYPE_DIB

getAllPictures

public java.util.List<HSSFPictureData> getAllPictures()

Gets all pictures from the Workbook.

Specified by:: getAllPictures in interface Workbook

Returns:: the list of pictures (a list of HSSFPictureData objects.)

getOleMap

protected static java.util.Map<java.lang.String,ClassID> getOleMap()

addOlePackage

public int addOlePackage(POIFSFileSystem poiData,
                         java.lang.String label,
                         java.lang.String fileName,
                         java.lang.String command)
                  throws java.io.IOException

Adds an OLE package manager object with the given POIFS to the sheet

Parameters:: poiData - an POIFS containing the embedded document, to be added; label - the label of the payload; fileName - the original filename; command - the command to open the payload
Returns:: the index of the added ole object
Throws:: java.io.IOException - if the object can't be embedded

addOlePackage

public int addOlePackage(byte[] oleData,
                         java.lang.String label,
                         java.lang.String fileName,
                         java.lang.String command)
                  throws java.io.IOException

Description copied from interface: Workbook

Adds an OLE package manager object with the given content to the sheet

Specified by:: addOlePackage in interface Workbook

Parameters:: oleData - the payload; label - the label of the payload; fileName - the original filename; command - the command to open the payload
Returns:: the index of the added ole object, i.e. the storage id
Throws:: java.io.IOException - if the object can't be embedded

linkExternalWorkbook

public int linkExternalWorkbook(java.lang.String name,
                                Workbook workbook)

Adds the LinkTable records required to allow formulas referencing the specified external workbook to be added to this one. Allows formulas such as "[MyOtherWorkbook]Sheet3!$A$5" to be added to the file, for workbooks not already referenced.

Specified by:: linkExternalWorkbook in interface Workbook

Parameters:: name - The name the workbook will be referenced as in formulas; workbook - The open workbook to fetch the link required information from

isWriteProtected

public boolean isWriteProtected()

Is the workbook protected with a password (not encrypted)?

writeProtectWorkbook

public void writeProtectWorkbook(java.lang.String password,
                                 java.lang.String username)

protect a workbook with a password (not encypted, just sets writeprotect flags and the password.

Parameters:: password - to set

unwriteProtectWorkbook

public void unwriteProtectWorkbook()

removes the write protect flag

getAllEmbeddedObjects

public java.util.List<HSSFObjectData> getAllEmbeddedObjects()

Gets all embedded OLE2 objects from the Workbook.

Returns:: the list of embedded objects (a list of HSSFObjectData objects.)

getCreationHelper

public HSSFCreationHelper getCreationHelper()

Description copied from interface: Workbook

Returns an object that handles instantiating concrete classes of the various instances one needs for HSSF and XSSF.

Specified by:: getCreationHelper in interface Workbook

addToolPack

public void addToolPack(UDFFinder toopack)

Specified by:: addToolPack in interface Workbook

Parameters:: toopack - the toolpack to register

setForceFormulaRecalculation

public void setForceFormulaRecalculation(boolean value)

Whether the application shall perform a full recalculation when the workbook is opened.

Typically you want to force formula recalculation when you modify cell formulas or values of a workbook previously created by Excel. When set to true, this flag will tell Excel that it needs to recalculate all formulas in the workbook the next time the file is opened.

Note, that recalculation updates cached formula results and, thus, modifies the workbook. Depending on the version, Excel may prompt you with "Do you want to save the changes in filename?" on close.

Specified by:: setForceFormulaRecalculation in interface Workbook

Parameters:: value - true if the application will perform a full recalculation of workbook values when the workbook is opened
Since:: 3.8

getForceFormulaRecalculation

public boolean getForceFormulaRecalculation()

Whether Excel will be asked to recalculate all formulas when the workbook is opened.

Specified by:: getForceFormulaRecalculation in interface Workbook

Since:: 3.8

changeExternalReference

public boolean changeExternalReference(java.lang.String oldUrl,
                                       java.lang.String newUrl)

Changes an external referenced file to another file. A formula in Excel which references a cell in another file is saved in two parts: The referenced file is stored in an reference table. the row/cell information is saved separate. This method invocation will only change the reference in the lookup-table itself.

Parameters:: oldUrl - The old URL to search for and which is to be replaced; newUrl - The URL replacement
Returns:: true if the oldUrl was found and replaced with newUrl. Otherwise false

getRootDirectory

@Deprecated
@Removal(version="3.18")
public DirectoryNode getRootDirectory()

Deprecated. POI 3.16 beta 1. use POIDocument.getDirectory() instead

getInternalWorkbook

@Internal
public InternalWorkbook getInternalWorkbook()

getSpreadsheetVersion

public SpreadsheetVersion getSpreadsheetVersion()

Returns the spreadsheet version (EXCLE97) of this workbook

Specified by:: getSpreadsheetVersion in interface Workbook

Returns:: EXCEL97 SpreadsheetVersion enum
Since:: 3.14 beta 2

getEncryptionInfo

public EncryptionInfo getEncryptionInfo()

Overrides:: getEncryptionInfo in class POIDocument

Returns:: the encryption info if the document is encrypted, otherwise null

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org.apache.poi.hssf.usermodel Class HSSFWorkbook

INITIAL_CAPACITY

_sheets

HSSFWorkbook

HSSFWorkbook

HSSFWorkbook

HSSFWorkbook

HSSFWorkbook

HSSFWorkbook

HSSFWorkbook

HSSFWorkbook

create

getWorkbookDirEntryName

getMissingCellPolicy

setMissingCellPolicy

setSheetOrder

setSelectedTab

setSelectedTabs

setSelectedTabs

getSelectedTabs

setActiveSheet

getActiveSheetIndex

setFirstVisibleTab

getFirstVisibleTab

setSheetName

getSheetName

isHidden

setHidden

isSheetHidden

isSheetVeryHidden

getSheetVisibility

setSheetHidden

setSheetHidden

setSheetVisibility

getSheetIndex

getSheetIndex

createSheet

cloneSheet

createSheet

sheetIterator

iterator

getNumberOfSheets

getSheetAt

getSheet

removeSheetAt

setBackupFlag

getBackupFlag

createFont

findFont

getNumberOfFonts

getFontAt

resetFontCache

createCellStyle

getNumCellStyles

getCellStyleAt

close

write

write

write

getBytes

encryptBytes

getNumberOfNames

getName

getNames

getNameAt

getAllNames

getNameRecord

getNameName

setPrintArea

setPrintArea

getPrintArea

removePrintArea

createName

getNameIndex

removeName

createDataFormat

removeName

removeName

getCustomPalette

insertChartRecord

org.apache.poi.hssf.usermodel
Class HSSFWorkbook