org.apache.poi.hssf.record.aggregates
Class SharedValueManager

java.lang.Object
  org.apache.poi.hssf.record.aggregates.SharedValueManager

public final class SharedValueManager
extends java.lang.Object

Manages various auxiliary records while constructing a RowRecordsAggregate:

• SharedFormulaRecords
• ArrayRecords
• TableRecords

Author:

Josh Micich, Vladimirs Abramovs(Vladimirs.Abramovs at exigenservices.com) - handling of ArrayRecords

Method Summary

void	addArrayRecord(ArrayRecord ar) Add specified Array Record.
static SharedValueManager	create(SharedFormulaRecord[] sharedFormulaRecords, CellReference[] firstCells, ArrayRecord[] arrayRecords, TableRecord[] tableRecords)
static SharedValueManager	createEmpty()
ArrayRecord	getArrayRecord(int firstRow, int firstColumn)
SharedValueRecordBase	getRecordForFirstCell(FormulaRecordAggregate agg) Gets the SharedValueRecordBase record if it should be encoded immediately after the formula record contained in the specified FormulaRecordAggregate agg.
SharedFormulaRecord	linkSharedFormulaRecord(CellReference firstCell, FormulaRecordAggregate agg)
CellRangeAddress8Bit	removeArrayFormula(int rowIndex, int columnIndex) Removes the ArrayRecord for the cell group containing the specified cell.
void	unlink(SharedFormulaRecord sharedFormulaRecord) Converts all FormulaRecords handled by sharedFormulaRecord to plain unshared formulas

Methods inherited from class java.lang.Object

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

Method Detail

createEmpty

public static SharedValueManager createEmpty()

Returns:

a new empty SharedValueManager.

create

public static SharedValueManager create(SharedFormulaRecord[] sharedFormulaRecords,
                                        CellReference[] firstCells,
                                        ArrayRecord[] arrayRecords,
                                        TableRecord[] tableRecords)

linkSharedFormulaRecord

public SharedFormulaRecord linkSharedFormulaRecord(CellReference firstCell,
                                                   FormulaRecordAggregate agg)

Parameters:

firstCell - as extracted from the ExpPtg from the cell's formula.

Returns:

never null

getRecordForFirstCell

public SharedValueRecordBase getRecordForFirstCell(FormulaRecordAggregate agg)

Gets the SharedValueRecordBase record if it should be encoded immediately after the formula record contained in the specified FormulaRecordAggregate agg. Note - the shared value record always appears after the first formula record in the group. For arrays and tables the first formula is always the in the top left cell. However, since shared formula groups can be sparse and/or overlap, the first formula may not actually be in the top left cell.

Returns:

the SHRFMLA, TABLE or ARRAY record for the formula cell, if it is the first cell of a table or array region. null if the formula cell is not shared/array/table, or if the specified formula is not the the first in the group.

unlink

public void unlink(SharedFormulaRecord sharedFormulaRecord)

Converts all FormulaRecords handled by sharedFormulaRecord to plain unshared formulas

addArrayRecord

public void addArrayRecord(ArrayRecord ar)

Add specified Array Record.

removeArrayFormula

public CellRangeAddress8Bit removeArrayFormula(int rowIndex,
                                               int columnIndex)

Removes the ArrayRecord for the cell group containing the specified cell. The caller should clear (set blank) all cells in the returned range.

Returns:

the range of the array formula which was just removed. Never null.

getArrayRecord

public ArrayRecord getArrayRecord(int firstRow,
                                  int firstColumn)

Returns:

the shared ArrayRecord identified by (firstRow, firstColumn). never null.