ExternalSheet.java :  » Development » JExcelAPI » jxl » biff » formula » Java Open Source

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JExcelAPI » jxl » biff » formula » ExternalSheet.java
/*********************************************************************
*
*      Copyright (C) 2002 Andrew Khan
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
***************************************************************************/

package jxl.biff.formula;

import jxl.read.biff.BOFRecord;

/**
 * Interface which exposes the methods needed by formulas
 * to access external sheet records
 */
public interface ExternalSheet
{
  /**
   * Gets the name of the external sheet specified by the index
   *
   * @param index the external sheet index
   * @return the name of the external sheet
   */
  public String getExternalSheetName(int index);

  /**
   * Gets the index of the first external sheet for the name
   *
   * @param sheetName the name of the external sheet
   * @return  the index of the external sheet with the specified name
   */
  public int getExternalSheetIndex(String sheetName);

  /**
   * Gets the index of the first external sheet for the name
   *
   * @param index the external sheet index
   * @return the sheet index of the external sheet index
   */
  public int getExternalSheetIndex(int index);

  /**
   * Gets the index of the last external sheet for the name
   *
   * @param sheetName the name of the external sheet
   * @return  the index of the external sheet with the specified name
   */
  public int getLastExternalSheetIndex(String sheetName);

  /**
   * Gets the index of the first external sheet for the name
   *
   * @param index the external sheet index
   * @return the sheet index of the external sheet index
   */
  public int getLastExternalSheetIndex(int index);

  /**
   * Parsing of formulas is only supported for a subset of the available
   * biff version, so we need to test to see if this version is acceptable
   *
   * @return the BOF record
   */
  public BOFRecord getWorkbookBof();
}
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