ObjectNumber Property

 
import java.io.ByteArrayInputStream; 
import java.io.File; 
import java.io.FileInputStream; 
import java.io.FileNotFoundException; 
import java.io.FileOutputStream; 
import java.io.FileReader; 
import java.io.IOException; 
import java.io.InputStream; 
import java.nio.file.Files; 
import java.nio.file.Paths; 
import java.nio.file.StandardCopyOption; 
import java.util.ArrayList; 
import java.util.Date; 
import java.util.List; 
import java.util.Scanner; 
 
import org.junit.*; 
import org.junit.runner.JUnitCore; 
import org.junit.runner.Result; 
import org.junit.runner.notification.Failure; 
import static org.junit.Assert.*; 
 
import leadtools.*; 
import leadtools.codecs.*; 
import leadtools.pdf.*; 
 
 
public void pdfFileAnnotationsReplyParentChildExample() throws IOException { 
 
   final String LEAD_VARS_IMAGES_DIR = "C:\\LEADTOOLS23\\Resources\\Images"; 
   String sourceFile = combine(LEAD_VARS_IMAGES_DIR, "Leadtools.pdf"); 
   String targetFile = combine(LEAD_VARS_IMAGES_DIR, "Leadtools_with_rectangle_reply.pdf"); 
 
   // Copy the source to target 
   File file = new File(targetFile); 
   if (file.exists()) { 
      file.delete(); 
   } 
 
   Files.copy(Paths.get(sourceFile), Paths.get(targetFile), StandardCopyOption.REPLACE_EXISTING); 
 
   ArrayList<PDFAnnotation> annotations = new ArrayList<PDFAnnotation>(); 
 
   // Add a rectangle and a reply to it 
   final String MY_RECTANGLE = "myRectangle"; 
   final String MY_REPLY = "myReply"; 
 
   // Create dashed red pen with width of 2 
   PDFPen pen = new PDFPen(); 
   pen.setColor(RasterColor.fromKnownColor(RasterKnownColor.RED)); 
   pen.setPenStyle(PDFPen.DASHED); 
   pen.setWidth(2); 
 
   // Create red solid brush 
   PDFBrush brush = new PDFBrush(); 
   brush.setBrushStyle(PDFBrush.SOLID); 
   brush.setColor(RasterColor.fromKnownColor(RasterKnownColor.RED)); 
 
   PDFRectangleAnnotation rectObj = new PDFRectangleAnnotation(); 
   rectObj.setPageNumber(1); 
   rectObj.setPen(pen); 
   rectObj.setBrush(brush); 
   PDFRect rect = new PDFRect(72, 72, 144, 108); 
   rectObj.setBounds(rect); 
   rectObj.setTransparency(1); 
 
   // Set the object number to a unique value, here we call it parent1. Note that 
   // this is 
   // will be used when storing the objects inside the PDF and the object id (or 
   // number) 
   // will be replaced by a unique value during the save process. 
   rectObj.setObjectNumber(MY_RECTANGLE); 
   annotations.add(rectObj); 
 
   // Add an opened note that is a child of the rectangle 
   PDFNoteAnnotation noteObj1 = new PDFNoteAnnotation(); 
   noteObj1.setPageNumber(1); 
   noteObj1.setContent("Reply to rect"); 
   noteObj1.setPoint(new PDFPoint(72, 72)); 
   noteObj1.setColor(RasterColor.fromKnownColor(RasterKnownColor.YELLOW)); 
   noteObj1.setOpen(false); 
 
   // We must give it a unique name, again will be replaced by the framework. 
   noteObj1.setObjectNumber(MY_REPLY); 
 
   // And set the object we are replying to, in this case, the rectangle 
   noteObj1.setParentObjectNumber(rectObj.getObjectNumber()); 
   annotations.add(noteObj1); 
 
   // Add an ellipse, with no note 
   PDFEllipseAnnotation ellipseObj = new PDFEllipseAnnotation(); 
   ellipseObj.setPageNumber(1); 
   ellipseObj.setPen(pen); 
   ellipseObj.setBrush(brush); 
   rect = new PDFRect(216, 72, 288, 108); 
   ellipseObj.setCenter(new PDFPoint(rect.getLeft() + rect.getRight() / 2, rect.getTop() + rect.getBottom() / 2)); 
   ellipseObj.setHorizontalRadius(rect.getRight() - rect.getLeft()); 
   ellipseObj.setVerticalRadius(rect.getBottom() - rect.getTop()); 
   ellipseObj.setTransparency(1); 
 
   // Note that since we will not add a reply to this annotation object, we do not 
   // have to set the value of ObjectNumber to anything and leave it as the default 
   // of null. The framework will replace it with a unique value during the save 
   // process. 
   // ellipseObj.ObjectNumber = null; 
   annotations.add(ellipseObj); 
 
   // Add an opened note that is a not a child of any objects. 
   PDFNoteAnnotation noteObj2 = new PDFNoteAnnotation(); 
   noteObj2.setPageNumber(1); 
   noteObj2.setContent("No parent"); 
   noteObj2.setPoint(new PDFPoint(216, 72)); 
   noteObj2.setColor(RasterColor.fromKnownColor(RasterKnownColor.YELLOW)); 
   noteObj2.setOpen(true); 
 
   // Again, since we do not need to associate this object with any other there is 
   // no need to set its nor its parent ID 
   // noteObj2.ObjectNumber = null; 
   // noteObj2.ParentObjectNumber = null; 
   annotations.add(noteObj2); 
 
   // Save the PDF file 
   PDFFile pdfFile = new PDFFile(targetFile); 
   pdfFile.writeAnnotations(annotations, null); 
 
   System.out.printf("PDF file with annotations created in%n%s", targetFile); 
 
   assertTrue("Check if target file exists", new File(targetFile).exists()); 
   // Open the created PDF in Adobe Acrobat and it should contain the following: 
   // - Dashed red rectangle object. 
   // - Closed reply to the rectangle with "Reply to rect" content. This should 
   // show as a note in the rectangle object. 
   // - Dashed red ellipse object. 
   // - Open yellow stand-alone note object with "No parent" content. 
 
}