com.aspose.words

Property Getters/Setters Detail

• getDocument

  public DocumentBase getDocument()
  

  Gets the document to which this node belongs.

  The node always belongs to a document even if it has just been created and not yet added to the tree, or if it has been removed from the tree.

  Example:

  Shows that when you create any node, it requires a document that will own the node.

  // Open a file from disk.
  Document doc = new Document();
  
  // Creating a new node of any type requires a document passed into the constructor.
  Paragraph para = new Paragraph(doc);
  
  // The new paragraph node does not yet have a parent.
  System.out.println("Paragraph has no parent node: " + (para.getParentNode() == null));
  
  // But the paragraph node knows its document.
  System.out.println("Both nodes' documents are the same: " + (para.getDocument() == doc));
  
  // The fact that a node always belongs to a document allows us to access and modify
  // properties that reference the document-wide data such as styles or lists.
  para.getParagraphFormat().setStyleName("Heading 1");
  
  // Now add the paragraph to the main text of the first section.
  doc.getFirstSection().getBody().appendChild(para);
  
  // The paragraph node is now a child of the Body node.
  System.out.println("Paragraph has a parent node: " + (para.getParentNode() != null));

• getFont

  public Font getFont()
  

  Provides access to the font formatting of this object.

  Example:

  Creates a simple document from scratch using the Aspose.Words object model.

  // Create an "empty" document. Note that like in Microsoft Word,
  // the empty document has one section, body and one paragraph in it.
  Document doc = new Document();
  
  // This truly makes the document empty. No sections (not possible in Microsoft Word).
  doc.removeAllChildren();
  
  // Create a new section node.
  // Note that the section has not yet been added to the document,
  // but we have to specify the parent document.
  Section section = new Section(doc);
  
  // Append the section to the document.
  doc.appendChild(section);
  
  // Lets set some properties for the section.
  section.getPageSetup().setSectionStart(SectionStart.NEW_PAGE);
  section.getPageSetup().setPaperSize(PaperSize.LETTER);
  
  // The section that we created is empty, lets populate it. The section needs at least the Body node.
  Body body = new Body(doc);
  section.appendChild(body);
  
  // The body needs to have at least one paragraph.
  // Note that the paragraph has not yet been added to the document,
  // but we have to specify the parent document.
  // The parent document is needed so the paragraph can correctly work
  // with styles and other document-wide information.
  Paragraph para = new Paragraph(doc);
  body.appendChild(para);
  
  // We can set some formatting for the paragraph
  para.getParagraphFormat().setStyleName("Heading 1");
  para.getParagraphFormat().setAlignment(ParagraphAlignment.CENTER);
  
  // So far we have one empty paragraph in the document.
  // The document is valid and can be saved, but lets add some text before saving.
  // Create a new run of text and add it to our paragraph.
  Run run = new Run(doc);
  run.setText("Hello World!");
  run.getFont().setColor(Color.RED);
  para.appendChild(run);
  
  // As a matter of interest, you can retrieve text of the whole document and
  // see that \x000c is automatically appended. \x000c is the end of section character.
  System.out.println(doc.getText());
  
  // Save the document.
  doc.save(getArtifactsDir() + "Section.CreateFromScratch.doc");

• isComposite

  public boolean isComposite()
  

  Returns true if this node can contain other nodes.

  This method returns false as Node cannot have child nodes.

  Example:

  Shows how to efficiently visit all direct and indirect children of a composite node.

  public void recurseAllNodes() throws Exception
  {
      // Open a document.
      Document doc = new Document(getMyDir() + "Node.RecurseAllNodes.doc");
  
      // Invoke the recursive function that will walk the tree.
      traverseAllNodes(doc);
  }
  
  /**
   * A simple function that will walk through all children of a specified node recursively
   * and print the type of each node to the screen.
   */
  public void traverseAllNodes(CompositeNode parentNode)
  {
      // This is the most efficient way to loop through immediate children of a node.
      for (Node childNode = parentNode.getFirstChild(); childNode != null; childNode = childNode.getNextSibling())
      {
          // Do some useful work.
          System.out.println(Node.nodeTypeToString(childNode.getNodeType()));
  
          // Recurse into the node if it is a composite node.
          if (childNode.isComposite()) traverseAllNodes((CompositeNode) childNode);
      }
  }

• isDeleteRevision

  public boolean isDeleteRevision()
  

  Returns true if this object was deleted in Microsoft Word while change tracking was enabled.

• isFormatRevision

  public boolean isFormatRevision()
  

  Returns true if formatting of the object was changed in Microsoft Word while change tracking was enabled.

• isInsertRevision

  public boolean isInsertRevision()
  

  Returns true if this object was inserted in Microsoft Word while change tracking was enabled.

• isMoveFromRevision

  public boolean isMoveFromRevision()
  

  Returns true if this object was moved (deleted) in Microsoft Word while change tracking was enabled.

• isMoveToRevision

  public boolean isMoveToRevision()
  

  Returns true if this object was moved (inserted) in Microsoft Word while change tracking was enabled.

• getNextSibling

  public Node getNextSibling()
  

  Gets the node immediately following this node.

  If there is no next node, a null is returned.

  Example:

  Shows how to enumerate immediate child nodes of a composite node using NextSibling. In this example we enumerate all paragraphs of a section body.

  // Get the section that we want to work on.
  Section section = doc.getSections().get(0);
  Body body = section.getBody();
  
  // Loop starting from the first child until we reach null.
  for (Node node = body.getFirstChild(); node != null; node = node.getNextSibling())
  {
      // Output the types of the nodes that we come across.
      System.out.println(Node.nodeTypeToString(node.getNodeType()));
  }

  Example:

  Shows how to efficiently visit all direct and indirect children of a composite node.

  public void recurseAllNodes() throws Exception
  {
      // Open a document.
      Document doc = new Document(getMyDir() + "Node.RecurseAllNodes.doc");
  
      // Invoke the recursive function that will walk the tree.
      traverseAllNodes(doc);
  }
  
  /**
   * A simple function that will walk through all children of a specified node recursively
   * and print the type of each node to the screen.
   */
  public void traverseAllNodes(CompositeNode parentNode)
  {
      // This is the most efficient way to loop through immediate children of a node.
      for (Node childNode = parentNode.getFirstChild(); childNode != null; childNode = childNode.getNextSibling())
      {
          // Do some useful work.
          System.out.println(Node.nodeTypeToString(childNode.getNodeType()));
  
          // Recurse into the node if it is a composite node.
          if (childNode.isComposite()) traverseAllNodes((CompositeNode) childNode);
      }
  }

• getNodeType

  public int getNodeType()
  

  Returns NodeType.SpecialChar. The value of the property is NodeType integer constant.

  Example:

  Shows how to retrieve the NodeType enumeration of nodes.

  Document doc = new Document(getMyDir() + "Document.doc");
  
  // Let's pick a node that we can't be quite sure of what type it is.
  // In this case lets pick the first node of the first paragraph in the body of the document
  Node node = doc.getFirstSection().getBody().getFirstParagraph().getFirstChild();
  System.out.println("NodeType of first child: " + Node.nodeTypeToString(node.getNodeType()));
  
  // This time let's pick a node that we know the type of. Create a new paragraph and a table node.
  Paragraph para = new Paragraph(doc);
  Table table = new Table(doc);
  
  // Access to NodeType for typed nodes will always return their specific NodeType.
  // i.e A paragraph node will always return NodeType.Paragraph, a table node will always return NodeType.Table.
  System.out.println("NodeType of Paragraph: " + Node.nodeTypeToString(para.getNodeType()));
  System.out.println("NodeType of Table: " + Node.nodeTypeToString(table.getNodeType()));

• getParentNode

  public CompositeNode getParentNode()
  

  Gets the immediate parent of this node.

  If a node has just been created and not yet added to the tree, or if it has been removed from the tree, the parent is null.

  Example:

  Shows how to access the parent node.

  // Create a new empty document. It has one section.
  Document doc = new Document();
  
  // The section is the first child node of the document.
  Node section = doc.getFirstChild();
  
  // The section's parent node is the document.
  System.out.println("Section parent is the document: " + (doc == section.getParentNode()));

  Example:

  Shows that when you create any node, it requires a document that will own the node.

  // Open a file from disk.
  Document doc = new Document();
  
  // Creating a new node of any type requires a document passed into the constructor.
  Paragraph para = new Paragraph(doc);
  
  // The new paragraph node does not yet have a parent.
  System.out.println("Paragraph has no parent node: " + (para.getParentNode() == null));
  
  // But the paragraph node knows its document.
  System.out.println("Both nodes' documents are the same: " + (para.getDocument() == doc));
  
  // The fact that a node always belongs to a document allows us to access and modify
  // properties that reference the document-wide data such as styles or lists.
  para.getParagraphFormat().setStyleName("Heading 1");
  
  // Now add the paragraph to the main text of the first section.
  doc.getFirstSection().getBody().appendChild(para);
  
  // The paragraph node is now a child of the Body node.
  System.out.println("Paragraph has a parent node: " + (para.getParentNode() != null));

• getParentParagraph

  public Paragraph getParentParagraph()
  

  Retrieves the parent Paragraph of this node.

• getPreviousSibling

  public Node getPreviousSibling()
  

  Gets the node immediately preceding this node.

  If there is no preceding node, a null is returned.

  Example:

  Demonstrates use of methods of Node and CompositeNode to remove a section before the last section in the document.

  // Document is a CompositeNode and LastChild returns the last child node in the Document node.
  // Since the Document can contain only Section nodes, the last child is the last section.
  Node lastSection = doc.getLastChild();
  
  // Each node knows its next and previous sibling nodes.
  // Previous sibling of a section is a section before the specified section.
  // If the node is the first child, PreviousSibling will return null.
  Node sectionBeforeLast = lastSection.getPreviousSibling();
  
  if (sectionBeforeLast != null) doc.removeChild(sectionBeforeLast);

• getRange

  public Range getRange()
  

  Returns a Range object that represents the portion of a document that is contained in this node.

  Example:

  Shows how to delete all characters of a range.

  // Open Word document.
  Document doc = new Document(getMyDir() + "Range.DeleteSection.doc");
  
  // The document contains two sections. Each section has a paragraph of text.
  System.out.println(doc.getText());
  
  // Delete the first section from the document.
  doc.getSections().get(0).getRange().delete();
  
  // Check the first section was deleted by looking at the text of the whole document again.
  System.out.println(doc.getText());

Method Detail

• accept

  public boolean accept(DocumentVisitor visitor)
                throws java.lang.Exception

  Accepts a visitor.

  Calls DocumentVisitor.VisitSpecialChar.

  For more info see the Visitor design pattern.

  Parameters:

  visitor - The visitor that will visit the node.

  Returns:

  False if the visitor requested the enumeration to stop.

• deepClone

  public Node deepClone(boolean isCloneChildren)

  Example:

  Shows how to clone composite nodes with and without their child nodes.

  // Create a new empty document.
  Document doc = new Document();
  
  // Add some text to the first paragraph
  Paragraph para = doc.getFirstSection().getBody().getFirstParagraph();
  para.appendChild(new Run(doc, "Some text"));
  
  // Clone the paragraph and the child nodes.
  Node cloneWithChildren = para.deepClone(true);
  // Only clone the paragraph and no child nodes.
  Node cloneWithoutChildren = para.deepClone(false);

• getAncestor

  public CompositeNode getAncestor(int ancestorType)

  Gets the first ancestor of the specified NodeType.

  Parameters:

  ancestorType - A NodeType value. The node type of the ancestor to retrieve.

  Returns:

  The ancestor of the specified type or null if no ancestor of this type was found.

  Example:

  Shows how to find out if a table contains another table or if the table itself is nested inside another table.

  public void calculateDepthOfNestedTables() throws Exception
  {
      Document doc = new Document(getMyDir() + "Table.NestedTables.doc");
      int tableIndex = 0;
  
      for (Table table : (Iterable<Table>) doc.getChildNodes(NodeType.TABLE, true))
      {
          // First lets find if any cells in the table have tables themselves as children.
          int count = getChildTableCount(table);
          System.out.println(MessageFormat.format("Table #{0} has {1} tables directly within its cells", tableIndex, count));
  
          // Now let's try the other way around, lets try find if the table is nested inside another table and at what depth.
          int tableDepth = getNestedDepthOfTable(table);
  
          if (tableDepth > 0)
              System.out.println(MessageFormat.format("Table #{0} is nested inside another table at depth of {1}", tableIndex, tableDepth));
          else
              System.out.println(MessageFormat.format("Table #{0} is a non nested table (is not a child of another table)", tableIndex));
  
          tableIndex++;
      }
  }
  
  /**
   * Calculates what level a table is nested inside other tables.
   *
   * @returns An integer containing the level the table is nested at.
   * 0 = Table is not nested inside any other table
   * 1 = Table is nested within one parent table
   * 2 = Table is nested within two parent tables etc..
   */
  private static int getNestedDepthOfTable(Table table)
  {
      int depth = 0;
  
      int type = table.getNodeType();
      // The parent of the table will be a Cell, instead attempt to find a grandparent that is of type Table
      Node parent = table.getAncestor(type);
  
      while (parent != null)
      {
          // Every time we find a table a level up we increase the depth counter and then try to find an
          // ancestor of type table from the parent.
          depth++;
          parent = parent.getAncestor(type);
      }
  
      return depth;
  }
  
  /**
   * Determines if a table contains any immediate child table within its cells.
   * Does not recursively traverse through those tables to check for further tables.
   *
   * @returns Returns true if at least one child cell contains a table.
   * Returns false if no cells in the table contains a table.
   */
  private static int getChildTableCount(Table table)
  {
      int tableCount = 0;
      // Iterate through all child rows in the table
      for (Row row : table.getRows())
      {
          // Iterate through all child cells in the row
          for (Cell Cell : row.getCells())
          {
              // Retrieve the collection of child tables of this cell
              TableCollection childTables = Cell.getTables();
  
              // If this cell has a table as a child then return true
              if (childTables.getCount() > 0) tableCount++;
          }
      }
  
      // No cell contains a table
      return tableCount;
  }

• getAncestor

  public CompositeNode getAncestor(java.lang.Class ancestorType)

  Gets the first ancestor of the specified object type.

  The ancestor type matches if it is equal to ancestorType or derived from ancestorType.

  Parameters:

  ancestorType - The object type of the ancestor to retrieve.

  Returns:

  The ancestor of the specified type or null if no ancestor of this type was found.

• getText

  public java.lang.String getText()

  Gets the special character that this node represents.

  Returns:

  The string that contains the character that this node represents.

• nextPreOrder

  public Node nextPreOrder(Node rootNode)

  Gets next node according to the pre-order tree traversal algorithm.

  Parameters:

  rootNode - The top node (limit) of traversal.

  Returns:

  Next node in pre-order order. Null if reached the rootNode.

  Example:

  Shows how to delete all images from a document using pre-order tree traversal.

  Node curNode = doc;
  while (curNode != null)
  {
      Node nextNode = curNode.nextPreOrder(doc);
  
      if (curNode.getNodeType() == NodeType.SHAPE)
      {
          Shape shape = (Shape) curNode;
  
          // Several shape types can have an image including image shapes and OLE objects.
          if (shape.hasImage()) shape.remove();
      }
  
      curNode = nextNode;
  }

• previousPreOrder

  public Node previousPreOrder(Node rootNode)

  Gets the previous node according to the pre-order tree traversal algorithm.

  Parameters:

  rootNode - The top node (limit) of traversal.

  Returns:

  Previous node in pre-order order. Null if reached the rootNode.

• remove

  public void remove()

  Removes itself from the parent.

  Example:

  Shows how to remove all nodes of a specific type from a composite node. In this example we remove tables from a section body.

  // Get the section that we want to work on.
  Section section = doc.getSections().get(0);
  Body body = section.getBody();
  
  // Select the first child node in the body.
  Node curNode = body.getFirstChild();
  
  while (curNode != null)
  {
      // Save the pointer to the next sibling node because if the current
      // node is removed from the parent in the next step, we will have
      // no way of finding the next node to continue the loop.
      Node nextNode = curNode.getNextSibling();
  
      // A section body can contain Paragraph and Table nodes.
      // If the node is a Table, remove it from the parent.
      if (curNode.getNodeType() == NodeType.TABLE) curNode.remove();
  
      // Continue going through child nodes until null (no more siblings) is reached.
      curNode = nextNode;
  }

  Example:

  Shows how to delete all images from a document.

  // Here we get all shapes from the document node, but you can do this for any smaller
  // node too, for example delete shapes from a single section or a paragraph.
  NodeCollection shapes = doc.getChildNodes(NodeType.SHAPE, true);
  
  // We cannot delete shape nodes while we enumerate through the collection.
  // One solution is to add nodes that we want to delete to a temporary array and delete afterwards.
  ArrayList shapesToDelete = new ArrayList();
  for (Shape shape : (Iterable<Shape>) shapes)
  {
      // Several shape types can have an image including image shapes and OLE objects.
      if (shape.hasImage()) shapesToDelete.add(shape);
  }
  
  // Now we can delete shapes.
  for (Shape shape : (Iterable<Shape>) shapesToDelete)
      shape.remove();

• toString

  public java.lang.String toString(SaveOptions saveOptions)
                 throws java.lang.Exception

  Exports the content of the node into a string using the specified save options.

  Parameters:

  saveOptions - Specifies the options that control how the node is saved.

  Returns:

  The content of the node in the specified format.

  Example:

  Exports the content of a node to string in HTML format using custom specified options.

  Document doc = new Document(getMyDir() + "Document.doc");
  
  // Extract the last paragraph in the document to convert to HTML.
  Node node = doc.getLastSection().getBody().getLastParagraph();
  
  // Create an instance of HtmlSaveOptions and set a few options.
  HtmlSaveOptions saveOptions = new HtmlSaveOptions();
  saveOptions.setExportHeadersFootersMode(ExportHeadersFootersMode.PER_SECTION);
  saveOptions.setExportRelativeFontSize(true);
  
  // Convert the document to HTML and return as a string. Pass the instance of HtmlSaveOptions to
  // to use the specified options during the conversion.
  String nodeAsHtml = node.toString(saveOptions);

• toString

  public java.lang.String toString(int saveFormat)
                 throws java.lang.Exception

  Exports the content of the node into a string in the specified format.

  Returns:

  The content of the node in the specified format.

  Parameters:

  saveFormat - A SaveFormat value.

  Example:

  Shows how to extract the label of each paragraph in a list as a value or a String.

  Document doc = new Document(getMyDir() + "Lists.PrintOutAllLists.doc");
  doc.updateListLabels();
  int listParaCount = 1;
  
  for (Paragraph paragraph : (Iterable<Paragraph>) doc.getChildNodes(NodeType.PARAGRAPH, true))
  {
      // Find if we have the paragraph list. In our document our list uses plain arabic numbers,
      // which start at three and ends at six.
      if (paragraph.getListFormat().isListItem())
      {
          System.out.println(MessageFormat.format("Paragraph #{0}", listParaCount));
  
          // This is the text we get when actually getting when we output this node to text format.
          // The list labels are not included in this text output. Trim any paragraph formatting characters.
          String paragraphText = paragraph.toString(SaveFormat.TEXT).trim();
          System.out.println("Exported Text: " + paragraphText);
  
          ListLabel label = paragraph.getListLabel();
          // This gets the position of the paragraph in current level of the list. If we have a list with multiple level then this
          // will tell us what position it is on that particular level.
          System.out.println("Numerical Id: " + label.getLabelValue());
  
          // Combine them together to include the list label with the text in the output.
          System.out.println("List label combined with text: " + label.getLabelString() + " " + paragraphText);
  
          listParaCount++;
      }
  }

  Example:

  Shows the difference between calling the GetText and ToString methods on a node.

  Document doc = new Document();
  
  // Enter a dummy field into the document.
  DocumentBuilder builder = new DocumentBuilder(doc);
  builder.insertField("MERGEFIELD Field");
  
  // GetText will retrieve all field codes and special characters
  System.out.println("GetText() Result: " + doc.getText());
  
  // ToString will export the node to the specified format. When converted to text it will not retrieve fields code
  // or special characters, but will still contain some natural formatting characters such as paragraph markers etc.
  // This is the same as "viewing" the document as if it was opened in a text editor.
  System.out.println("ToString() Result: " + doc.toString(SaveFormat.TEXT));

  Example:

  Exports the content of a node to string in HTML format using default options.

  Document doc = new Document(getMyDir() + "Document.doc");
  
  // Extract the last paragraph in the document to convert to HTML.
  Node node = doc.getLastSection().getBody().getLastParagraph();
  
  // When ToString is called using the SaveFormat overload then conversion is executed using default save options.
  // When saving to HTML using default options the following settings are set:
  //   ExportImagesAsBase64 = true
  //   CssStyleSheetType = CssStyleSheetType.Inline
  //   ExportFontResources = false
  String nodeAsHtml = node.toString(SaveFormat.HTML);