Large tables

Tags: tablessplit tableiText7

Example that shows how you can add a table little by little in order to keep the memory footprint low.

Files: 
/*
 
    This file is part of the iText (R) project.
    Copyright (c) 1998-2016 iText Group NV
 
*/
 
package com.itextpdf.samples.sandbox.tables;
 
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.layout.Document;
import com.itextpdf.layout.element.Cell;
import com.itextpdf.layout.element.Paragraph;
import com.itextpdf.layout.element.Table;
import com.itextpdf.samples.GenericTest;
import com.itextpdf.test.annotations.type.SampleTest;
import org.junit.experimental.categories.Category;
 
import java.io.File;
 
@Category(SampleTest.class)
public class IncompleteTable extends GenericTest {
    public static final String DEST = "./target/test/resources/sandbox/tables/incomplete_table.pdf";
 
    public static void main(String[] args) throws Exception {
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new IncompleteTable().manipulatePdf(DEST);
    }
 
    @Override
    protected void manipulatePdf(String dest) throws Exception {
        PdfDocument pdfDoc = new PdfDocument(new PdfWriter(dest));
        Document doc = new Document(pdfDoc);
 
        Table table = new Table(5, true);
 
        for (int i = 0; i < 5; i++) {
            table.addHeaderCell(new Cell().setKeepTogether(true).add(new Paragraph("Header " + i)));
        }
 
        doc.add(table);
        for (int i = 0; i < 500; i++) {
            if (i % 5 == 0) {
                table.flush();
            }
            table.addCell(new Cell().setKeepTogether(true).add(new Paragraph("Test " + i).setMargins(0, 0, 0, 0)));
        }
 
        table.complete();
 
        doc.close();
    }
}
File nameRaw URLUpdated
IncompleteTable.javaIncompleteTable.java2016-08-08 12:22 pm
Results: 
File nameRaw URLUpdated
cmp_incomplete_table.pdfcmp_incomplete_table.pdf2016-08-08 12:22 pm