Examples of org.apache.poi.xssf.model.SharedStringsTable

org.apache.poi.xssf.model.SharedStringsTable
Table of strings shared across all sheets in a workbook.
A workbook may contain thousands of cells containing string (non-numeric) data. Furthermore this data is very likely to be repeated across many rows or columns. The goal of implementing a single string table that is shared across the workbook is to improve performance in opening and saving the file by only reading and writing the repetitive information once.

Consider for example a workbook summarizing information for cities within various countries. There may be a column for the name of the country, a column for the name of each city in that country, and a column containing the data for each city. In this case the country name is repetitive, being duplicated in many cells. In many cases the repetition is extensive, and a tremendous savings is realized by making use of a shared string table when saving the workbook. When displaying text in the spreadsheet, the cell table will just contain an index into the string table as the value of a cell, instead of the full string.

The shared string table contains all the necessary information for displaying the string: the text, formatting properties, and phonetic properties (for East Asian languages).
@author Nick Birch @author Yegor Kozlov

   * Opens up the Shared Strings Table, parses it, and
   *  returns a handy object for working with 
   *  shared strings.
   */
  public SharedStringsTable getSharedStringsTable() throws IOException, InvalidFormatException {
    return new SharedStringsTable(getSharedStringsData());
  }

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        CTBookView bv = bvs.addNewWorkbookView();
        bv.setActiveTab(0);
        this.workbook.addNewSheets();


        // We always require styles and shared strings
        sharedStringSource = new SharedStringsTable();
        stylesSource = new StylesTable();
    }

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                }
            }
             
            // Write shared strings and styles
            if(sharedStringSource != null) {
               SharedStringsTable sst = (SharedStringsTable)sharedStringSource;
               XSSFRelation.SHARED_STRINGS.save(sst, corePart);
            }
            if(stylesSource != null) {
               StylesTable st = (StylesTable)stylesSource;
               XSSFRelation.STYLES.save(st, corePart);

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 */
public class FromHowTo {
  public void processOneSheet(String filename) throws Exception {
    Package pkg = Package.open(filename);
    XSSFReader r = new XSSFReader( pkg );
    SharedStringsTable sst = r.getSharedStringsTable();


    XMLReader parser = fetchSheetParser(sst);


    // rId2 found by processing the Workbook
    // Seems to either be rId# or rSheet#

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  }


  public void processAllSheets(String filename) throws Exception {
    Package pkg = Package.open(filename);
    XSSFReader r = new XSSFReader( pkg );
    SharedStringsTable sst = r.getSharedStringsTable();
    
    XMLReader parser = fetchSheetParser(sst);


    Iterator<InputStream> sheets = r.getSheetsData();
    while(sheets.hasNext()) {

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 */
public class FromHowTo {
  public void processOneSheet(String filename) throws Exception {
    Package pkg = Package.open(filename);
    XSSFReader r = new XSSFReader( pkg );
    SharedStringsTable sst = r.getSharedStringsTable();


    XMLReader parser = fetchSheetParser(sst);


    // rId2 found by processing the Workbook
    // Seems to either be rId# or rSheet#

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  }


  public void processAllSheets(String filename) throws Exception {
    Package pkg = Package.open(filename);
    XSSFReader r = new XSSFReader( pkg );
    SharedStringsTable sst = r.getSharedStringsTable();
    
    XMLReader parser = fetchSheetParser(sst);


    Iterator<InputStream> sheets = r.getSheetsData();
    while(sheets.hasNext()) {

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     *  returns a handy object for working with
     *  shared strings.
     */
    public SharedStringsTable getSharedStringsTable() throws IOException, InvalidFormatException {
        ArrayList<PackagePart> parts = pkg.getPartsByContentType( XSSFRelation.SHARED_STRINGS.getContentType());
        return parts.size() == 0 ? null : new SharedStringsTable(parts.get(0), null);
    }

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      assertEquals("yyyy/mm/dd", c2.getCellStyle().getDataFormatString());
    }


    private static XSSFRow createParentObjects() {
        XSSFWorkbook wb = new XSSFWorkbook();
        wb.setSharedStringSource(new SharedStringsTable());
        XSSFSheet sheet = new XSSFSheet(wb);
        XSSFRow row = new XSSFRow(sheet);
        return row;
    }

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        return row;
    }


    private static XSSFSheet createParentObjects() {
        XSSFWorkbook wb = new XSSFWorkbook();
        wb.setSharedStringSource(new SharedStringsTable());
        return new XSSFSheet(wb);
    }

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