com.aspose.words

  • java.lang.Object
    • com.aspose.words.Node
Base class for all nodes of a Word document.

A document is represented as a tree of nodes, similar to DOM or XmlDocument.

For more info see the Composite design pattern.

The Node class:

  • Defines the child node interface.
  • Defines the interface for visiting nodes.
  • Provides default cloning capability.
  • Implements parent node and owner document mechanisms.
  • Implements access to sibling nodes.

Example:

Shows how to remove all child nodes of a specific type from a composite node.
Document doc = new Document(getMyDir() + "Tables.docx");

Assert.assertEquals(2, doc.getChildNodes(NodeType.TABLE, true).getCount());

Node curNode = doc.getFirstSection().getBody().getFirstChild();

while (curNode != null) {
    // Save the next sibling node as a variable in case we want to move to it after deleting this node.
    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();
    }

    curNode = nextNode;
}

Assert.assertEquals(0, doc.getChildNodes(NodeType.TABLE, true).getCount());

Example:

Shows how to clone a composite node.
Document doc = new Document();
Paragraph para = doc.getFirstSection().getBody().getFirstParagraph();
para.appendChild(new Run(doc, "Hello world!"));

// Below are two ways of cloning a composite node.
// 1 -  Create a clone of a node, and create a clone of each of its child nodes as well.
Node cloneWithChildren = para.deepClone(true);

Assert.assertTrue(((CompositeNode) cloneWithChildren).hasChildNodes());
Assert.assertEquals("Hello world!", cloneWithChildren.getText().trim());

// 2 -  Create a clone of a node just by itself without any children.
Node cloneWithoutChildren = para.deepClone(false);

Assert.assertFalse(((CompositeNode) cloneWithoutChildren).hasChildNodes());
Assert.assertEquals("", cloneWithoutChildren.getText().trim());

Example:

Shows how to traverse through a composite node's collection of child nodes.
Document doc = new Document();

// Add two runs and one shape as child nodes to the first paragraph of this document.
Paragraph paragraph = (Paragraph) doc.getChild(NodeType.PARAGRAPH, 0, true);
paragraph.appendChild(new Run(doc, "Hello world! "));

Shape shape = new Shape(doc, ShapeType.RECTANGLE);
shape.setWidth(200.0);
shape.setHeight(200.0);
shape.setWrapType(WrapType.INLINE);
paragraph.appendChild(shape);

paragraph.appendChild(new Run(doc, "Hello again!"));

// Iterate through the paragraph's collection of immediate children,
// and print any runs or shapes that we find within.
NodeCollection children = paragraph.getChildNodes();

Assert.assertEquals(3, paragraph.getChildNodes().getCount());

for (Node child : (Iterable<Node>) children)
    switch (child.getNodeType()) {
        case NodeType.RUN:
            System.out.println("Run contents:");
            System.out.println("\t\"{child.GetText().Trim()}\"");
            break;
        case NodeType.SHAPE:
            Shape childShape = (Shape) child;
            System.out.println("Shape:");
            System.out.println("\t{childShape.ShapeType}, {childShape.Width}x{childShape.Height}");
            break;
    }

Property Getters/Setters Summary
intgetCustomNodeId()
void
setCustomNodeId(intvalue)
           Specifies custom node identifier.
DocumentBasegetDocument()
Gets the document to which this node belongs.
booleanisComposite()
Returns true if this node can contain other nodes.
NodegetNextSibling()
Gets the node immediately following this node.
abstract intgetNodeType()
Gets the type of this node. The value of the property is NodeType integer constant.
CompositeNodegetParentNode()
Gets the immediate parent of this node.
NodegetPreviousSibling()
Gets the node immediately preceding this node.
RangegetRange()
Returns a Range object that represents the portion of a document that is contained in this node.
 
Method Summary
abstract booleanaccept(DocumentVisitor visitor)
Accepts a visitor.
NodedeepClone(boolean isCloneChildren)
Creates a duplicate of the node.
CompositeNodegetAncestor(int ancestorType)
Gets the first ancestor of the specified NodeType.
CompositeNodegetAncestor(java.lang.Class ancestorType)
Gets the first ancestor of the specified object type.
java.lang.StringgetText()
Gets the text of this node and of all its children.
NodenextPreOrder(Node rootNode)
Gets next node according to the pre-order tree traversal algorithm.
static java.lang.StringnodeTypeToString(int nodeType)
A utility method that converts a node type enum value into a user friendly string.
NodepreviousPreOrder(Node rootNode)
Gets the previous node according to the pre-order tree traversal algorithm.
voidremove()
Removes itself from the parent.
java.lang.StringtoString(SaveOptions saveOptions)
Exports the content of the node into a string using the specified save options.
java.lang.StringtoString(int saveFormat)
Exports the content of the node into a string in the specified format.
 

    • Property Getters/Setters Detail

      • getCustomNodeId/setCustomNodeId

        public int getCustomNodeId() / public void setCustomNodeId(int value)
        
        Specifies custom node identifier.

        Default is zero.

        This identifier can be set and used arbitrarily. For example, as a key to get external data.

      • 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 how to create a node and set its owning document.
        Document doc = new Document();
        Paragraph para = new Paragraph(doc);
        para.appendChild(new Run(doc, "Hello world!"));
        
        // We have not yet appended this paragraph as a child to any composite node.
        Assert.assertNull(para.getParentNode());
        
        // If a node is an appropriate child node type of another composite node,
        // we can attach it as a child only if both nodes have the same owner document.
        // The owner document is the document we passed to the node's constructor.
        // We have not attached this paragraph to the document, so the document does not contain its text.
        Assert.assertEquals(para.getDocument(), doc);
        Assert.assertEquals("", doc.getText().trim());
        
        // Since the document owns this paragraph, we can apply one of its styles to the paragraph's contents.
        para.getParagraphFormat().setStyleName("Heading 1");
        
        // Add this node to the document, and then verify its contents.
        doc.getFirstSection().getBody().appendChild(para);
        
        Assert.assertEquals(doc.getFirstSection().getBody(), para.getParentNode());
        Assert.assertEquals("Hello world!", doc.getText().trim());
      • 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 traverse a composite node's tree of child nodes.
        public void recurseChildren() throws Exception {
            Document doc = new Document(getMyDir() + "Paragraphs.docx");
        
            // Any node that can contain child nodes, such as the document itself, is composite.
            Assert.assertTrue(doc.isComposite());
        
            // Invoke the recursive function that will go through and print all the child nodes of a composite node.
            traverseAllNodes(doc, 0);
        }
        
        /// <summary>
        /// Recursively traverses a node tree while printing the type of each node
        /// with an indent depending on depth as well as the contents of all inline nodes.
        /// </summary>
        @Test(enabled = false)
        public void traverseAllNodes(CompositeNode parentNode, int depth) {
            for (Node childNode = parentNode.getFirstChild(); childNode != null; childNode = childNode.getNextSibling()) {
                System.out.println(MessageFormat.format("{0}{1}", String.format("    ", depth), Node.nodeTypeToString(childNode.getNodeType())));
        
                // Recurse into the node if it is a composite node. Otherwise, print its contents if it is an inline node.
                if (childNode.isComposite()) {
                    System.out.println();
                    traverseAllNodes((CompositeNode) childNode, depth + 1);
                } else if (childNode instanceof Inline) {
                    System.out.println(" - \"{childNode.GetText().Trim()}\"");
                } else {
                    System.out.println();
                }
            }
        }
      • 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 use a node's NextSibling property to enumerate through its immediate children.
        Document doc = new Document(getMyDir() + "Paragraphs.docx");
        
        for (Node node = doc.getFirstSection().getBody().getFirstChild(); node != null; node = node.getNextSibling()) {
            System.out.println(Node.nodeTypeToString(node.getNodeType()));
        }

        Example:

        Shows how to traverse a composite node's tree of child nodes.
        public void recurseChildren() throws Exception {
            Document doc = new Document(getMyDir() + "Paragraphs.docx");
        
            // Any node that can contain child nodes, such as the document itself, is composite.
            Assert.assertTrue(doc.isComposite());
        
            // Invoke the recursive function that will go through and print all the child nodes of a composite node.
            traverseAllNodes(doc, 0);
        }
        
        /// <summary>
        /// Recursively traverses a node tree while printing the type of each node
        /// with an indent depending on depth as well as the contents of all inline nodes.
        /// </summary>
        @Test(enabled = false)
        public void traverseAllNodes(CompositeNode parentNode, int depth) {
            for (Node childNode = parentNode.getFirstChild(); childNode != null; childNode = childNode.getNextSibling()) {
                System.out.println(MessageFormat.format("{0}{1}", String.format("    ", depth), Node.nodeTypeToString(childNode.getNodeType())));
        
                // Recurse into the node if it is a composite node. Otherwise, print its contents if it is an inline node.
                if (childNode.isComposite()) {
                    System.out.println();
                    traverseAllNodes((CompositeNode) childNode, depth + 1);
                } else if (childNode instanceof Inline) {
                    System.out.println(" - \"{childNode.GetText().Trim()}\"");
                } else {
                    System.out.println();
                }
            }
        }
      • getNodeType

        public abstract int getNodeType()
        
        Gets the type of this node. The value of the property is NodeType integer constant.

        Example:

        Shows how to use a node's NextSibling property to enumerate through its immediate children.
        Document doc = new Document(getMyDir() + "Paragraphs.docx");
        
        for (Node node = doc.getFirstSection().getBody().getFirstChild(); node != null; node = node.getNextSibling()) {
            System.out.println(Node.nodeTypeToString(node.getNodeType()));
        }

        Example:

        Shows how to remove all child nodes of a specific type from a composite node.
        Document doc = new Document(getMyDir() + "Tables.docx");
        
        Assert.assertEquals(2, doc.getChildNodes(NodeType.TABLE, true).getCount());
        
        Node curNode = doc.getFirstSection().getBody().getFirstChild();
        
        while (curNode != null) {
            // Save the next sibling node as a variable in case we want to move to it after deleting this node.
            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();
            }
        
            curNode = nextNode;
        }
        
        Assert.assertEquals(0, doc.getChildNodes(NodeType.TABLE, true).getCount());

        Example:

        Shows how to traverse a composite node's tree of child nodes.
        public void recurseChildren() throws Exception {
            Document doc = new Document(getMyDir() + "Paragraphs.docx");
        
            // Any node that can contain child nodes, such as the document itself, is composite.
            Assert.assertTrue(doc.isComposite());
        
            // Invoke the recursive function that will go through and print all the child nodes of a composite node.
            traverseAllNodes(doc, 0);
        }
        
        /// <summary>
        /// Recursively traverses a node tree while printing the type of each node
        /// with an indent depending on depth as well as the contents of all inline nodes.
        /// </summary>
        @Test(enabled = false)
        public void traverseAllNodes(CompositeNode parentNode, int depth) {
            for (Node childNode = parentNode.getFirstChild(); childNode != null; childNode = childNode.getNextSibling()) {
                System.out.println(MessageFormat.format("{0}{1}", String.format("    ", depth), Node.nodeTypeToString(childNode.getNodeType())));
        
                // Recurse into the node if it is a composite node. Otherwise, print its contents if it is an inline node.
                if (childNode.isComposite()) {
                    System.out.println();
                    traverseAllNodes((CompositeNode) childNode, depth + 1);
                } else if (childNode instanceof Inline) {
                    System.out.println(" - \"{childNode.GetText().Trim()}\"");
                } else {
                    System.out.println();
                }
            }
        }
      • 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 a node's parent node.
        Document doc = new Document();
        Paragraph para = doc.getFirstSection().getBody().getFirstParagraph();
        
        // Append a child Run node to the document's first paragraph.
        Run run = new Run(doc, "Hello world!");
        para.appendChild(run);
        
        // The paragraph is the parent node of the run node. We can trace this lineage
        // all the way to the document node, which is the root of the document's node tree.
        Assert.assertEquals(para, run.getParentNode());
        Assert.assertEquals(doc.getFirstSection().getBody(), para.getParentNode());
        Assert.assertEquals(doc.getFirstSection(), doc.getFirstSection().getBody().getParentNode());
        Assert.assertEquals(doc, doc.getFirstSection().getParentNode());

        Example:

        Shows how to create a node and set its owning document.
        Document doc = new Document();
        Paragraph para = new Paragraph(doc);
        para.appendChild(new Run(doc, "Hello world!"));
        
        // We have not yet appended this paragraph as a child to any composite node.
        Assert.assertNull(para.getParentNode());
        
        // If a node is an appropriate child node type of another composite node,
        // we can attach it as a child only if both nodes have the same owner document.
        // The owner document is the document we passed to the node's constructor.
        // We have not attached this paragraph to the document, so the document does not contain its text.
        Assert.assertEquals(para.getDocument(), doc);
        Assert.assertEquals("", doc.getText().trim());
        
        // Since the document owns this paragraph, we can apply one of its styles to the paragraph's contents.
        para.getParagraphFormat().setStyleName("Heading 1");
        
        // Add this node to the document, and then verify its contents.
        doc.getFirstSection().getBody().appendChild(para);
        
        Assert.assertEquals(doc.getFirstSection().getBody(), para.getParentNode());
        Assert.assertEquals("Hello world!", doc.getText().trim());
      • getPreviousSibling

        public Node getPreviousSibling()
        
        Gets the node immediately preceding this node. If there is no preceding node, a null is returned.

        Example:

        Shows how to use of methods of Node and CompositeNode to remove a section before the last section in the document.
        Document doc = new Document();
        DocumentBuilder builder = new DocumentBuilder(doc);
        
        builder.writeln("Section 1 text.");
        builder.insertBreak(BreakType.SECTION_BREAK_CONTINUOUS);
        builder.writeln("Section 2 text.");
        
        // Both sections are siblings of each other.
        Section lastSection = (Section) doc.getLastChild();
        Section firstSection = (Section) lastSection.getPreviousSibling();
        
        // Remove a section based on its sibling relationship with another section.
        if (lastSection.getPreviousSibling() != null)
            doc.removeChild(firstSection);
        
        // The section we removed was the first one, leaving the document with only the second.
        Assert.assertEquals("Section 2 text.", doc.getText().trim());
      • 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 the nodes from a range.
        Document doc = new Document();
        DocumentBuilder builder = new DocumentBuilder(doc);
        
        // Add text to the first section in the document, and then add another section.
        builder.write("Section 1. ");
        builder.insertBreak(BreakType.SECTION_BREAK_CONTINUOUS);
        builder.write("Section 2.");
        
        Assert.assertEquals("Section 1. \fSection 2.", doc.getText().trim());
        
        // Remove the first section entirely by removing all of the nodes
        // within its range, including the section itself.
        doc.getSections().get(0).getRange().delete();
        
        Assert.assertEquals(1, doc.getSections().getCount());
        Assert.assertEquals("Section 2.", doc.getText().trim());
    • Method Detail

      • accept

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

        Enumerates over this node and all of its children. Each node calls a corresponding method on DocumentVisitor.

        For more info see the Visitor design pattern.

        Parameters:
        visitor - The visitor that will visit the nodes.
        Returns:
        True if all nodes were visited; false if DocumentVisitor stopped the operation before visiting all nodes.
      • deepClone

        public Node deepClone(boolean isCloneChildren)
        Creates a duplicate of the node.

        This method serves as a copy constructor for nodes. The cloned node has no parent, but belongs to the same document as the original node.

        This method always performs a deep copy of the node. The isCloneChildren parameter specifies whether to perform copy all child nodes as well.

        Parameters:
        isCloneChildren - True to recursively clone the subtree under the specified node; false to clone only the node itself.
        Returns:
        The cloned node.

        Example:

        Shows how to clone a composite node.
        Document doc = new Document();
        Paragraph para = doc.getFirstSection().getBody().getFirstParagraph();
        para.appendChild(new Run(doc, "Hello world!"));
        
        // Below are two ways of cloning a composite node.
        // 1 -  Create a clone of a node, and create a clone of each of its child nodes as well.
        Node cloneWithChildren = para.deepClone(true);
        
        Assert.assertTrue(((CompositeNode) cloneWithChildren).hasChildNodes());
        Assert.assertEquals("Hello world!", cloneWithChildren.getText().trim());
        
        // 2 -  Create a clone of a node just by itself without any children.
        Node cloneWithoutChildren = para.deepClone(false);
        
        Assert.assertFalse(((CompositeNode) cloneWithoutChildren).hasChildNodes());
        Assert.assertEquals("", cloneWithoutChildren.getText().trim());
      • 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() + "Nested tables.docx");
            NodeCollection tables = doc.getChildNodes(NodeType.TABLE, true);
        
            for (int i = 0; i < tables.getCount(); i++) {
                // First lets find if any cells in the table have tables themselves as children
                int count = getChildTableCount((Table) tables.get(i));
                System.out.println(MessageFormat.format("Table #{0} has {1} tables directly within its cells", i, 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) tables.get(i));
        
                if (tableDepth > 0)
                    System.out.println(MessageFormat.format("Table #{0} is nested inside another table at depth of {1}", i, tableDepth));
                else
                    System.out.println(MessageFormat.format("Table #{0} is a non nested table (is not a child of another table)", i));
            }
        }
        
        /**
         * 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(final 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(table.getNodeType());
        
            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(Table.class);
            }
        
            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(final 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.

        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() + "Nested tables.docx");
            NodeCollection tables = doc.getChildNodes(NodeType.TABLE, true);
        
            for (int i = 0; i < tables.getCount(); i++) {
                // First lets find if any cells in the table have tables themselves as children
                int count = getChildTableCount((Table) tables.get(i));
                System.out.println(MessageFormat.format("Table #{0} has {1} tables directly within its cells", i, 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) tables.get(i));
        
                if (tableDepth > 0)
                    System.out.println(MessageFormat.format("Table #{0} is nested inside another table at depth of {1}", i, tableDepth));
                else
                    System.out.println(MessageFormat.format("Table #{0} is a non nested table (is not a child of another table)", i));
            }
        }
        
        /**
         * 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(final 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(table.getNodeType());
        
            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(Table.class);
            }
        
            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(final 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;
        }
      • getText

        public java.lang.String getText()
        Gets the text of this node and of all its children.

        The returned string includes all control and special characters as described in ControlChar.

        Example:

        Shows how to construct an Aspose.Words document by hand.
        Document doc = new Document();
        
        // A blank document contains one section, one body and one paragraph.
        // Call the "RemoveAllChildren" method to remove all those nodes,
        // and end up with a document node with no children.
        doc.removeAllChildren();
        
        // This document now has no composite child nodes that we can add content to.
        // If we wish to edit it, we will need to repopulate its node collection.
        // First, create a new section, and then append it as a child to the root document node.
        Section section = new Section(doc);
        doc.appendChild(section);
        
        // Set some page setup properties for the section.
        section.getPageSetup().setSectionStart(SectionStart.NEW_PAGE);
        section.getPageSetup().setPaperSize(PaperSize.LETTER);
        
        // A section needs a body, which will contain and display all of its contents
        // on the page between the section's header and footer.
        Body body = new Body(doc);
        section.appendChild(body);
        
        // Create a paragraph, set some formatting properties, and then append it as a child to the body.
        Paragraph para = new Paragraph(doc);
        
        para.getParagraphFormat().setStyleName("Heading 1");
        para.getParagraphFormat().setAlignment(ParagraphAlignment.CENTER);
        
        body.appendChild(para);
        
        // Finally, add some content to do the document by creating a run,
        // setting its text contents and appearance, and appending it as a child to the paragraph.
        Run run = new Run(doc);
        run.setText("Hello World!");
        run.getFont().setColor(Color.RED);
        para.appendChild(run);
        
        Assert.assertEquals("Hello World!", doc.getText().trim());
        
        doc.save(getArtifactsDir() + "Section.CreateManually.docx");

        Example:

        Shows how to use control characters.
        Document doc = new Document();
        DocumentBuilder builder = new DocumentBuilder(doc);
        
        // Insert paragraphs with text with DocumentBuilder.
        builder.writeln("Hello world!");
        builder.writeln("Hello again!");
        
        // Converting the document to text form reveals that control characters
        // represent some of the document's structural elements, such as page breaks.
        Assert.assertEquals(MessageFormat.format("Hello world!{0}", ControlChar.CR) +
                MessageFormat.format("Hello again!{0}", ControlChar.CR) +
                ControlChar.PAGE_BREAK, doc.getText());
        
        // When converting a document to string form,
        // we can omit some of the control characters with the Trim method.
        Assert.assertEquals(MessageFormat.format("Hello world!{0}", ControlChar.CR) +
                "Hello again!", doc.getText().trim());
      • 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.
      • nodeTypeToString

        public static java.lang.String nodeTypeToString(int nodeType)
        A utility method that converts a node type enum value into a user friendly string.
        Parameters:
        nodeType - A NodeType value.

        Example:

        Shows how to traverse a composite node's tree of child nodes.
        public void recurseChildren() throws Exception {
            Document doc = new Document(getMyDir() + "Paragraphs.docx");
        
            // Any node that can contain child nodes, such as the document itself, is composite.
            Assert.assertTrue(doc.isComposite());
        
            // Invoke the recursive function that will go through and print all the child nodes of a composite node.
            traverseAllNodes(doc, 0);
        }
        
        /// <summary>
        /// Recursively traverses a node tree while printing the type of each node
        /// with an indent depending on depth as well as the contents of all inline nodes.
        /// </summary>
        @Test(enabled = false)
        public void traverseAllNodes(CompositeNode parentNode, int depth) {
            for (Node childNode = parentNode.getFirstChild(); childNode != null; childNode = childNode.getNextSibling()) {
                System.out.println(MessageFormat.format("{0}{1}", String.format("    ", depth), Node.nodeTypeToString(childNode.getNodeType())));
        
                // Recurse into the node if it is a composite node. Otherwise, print its contents if it is an inline node.
                if (childNode.isComposite()) {
                    System.out.println();
                    traverseAllNodes((CompositeNode) childNode, depth + 1);
                } else if (childNode instanceof Inline) {
                    System.out.println(" - \"{childNode.GetText().Trim()}\"");
                } else {
                    System.out.println();
                }
            }
        }

        Example:

        Shows how to use a node's NextSibling property to enumerate through its immediate children.
        Document doc = new Document(getMyDir() + "Paragraphs.docx");
        
        for (Node node = doc.getFirstSection().getBody().getFirstChild(); node != null; node = node.getNextSibling()) {
            System.out.println(Node.nodeTypeToString(node.getNodeType()));
        }
      • 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 child nodes of a specific type from a composite node.
        Document doc = new Document(getMyDir() + "Tables.docx");
        
        Assert.assertEquals(2, doc.getChildNodes(NodeType.TABLE, true).getCount());
        
        Node curNode = doc.getFirstSection().getBody().getFirstChild();
        
        while (curNode != null) {
            // Save the next sibling node as a variable in case we want to move to it after deleting this node.
            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();
            }
        
            curNode = nextNode;
        }
        
        Assert.assertEquals(0, doc.getChildNodes(NodeType.TABLE, true).getCount());
      • 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.
        Document doc = new Document(getMyDir() + "Document.docx");
        
        Node node = doc.getLastSection().getBody().getLastParagraph();
        
        // When we call the ToString method using the html SaveFormat overload,
        // it converts the node's contents to their raw html representation.
        Assert.assertEquals("<p style=\"margin-top:0pt; margin-bottom:8pt; line-height:108%; font-size:12pt\">" +
                "<span style=\"font-family:'Times New Roman'\">Hello World!</span>" +
                "</p>", node.toString(SaveFormat.HTML));
        
        // We can also modify the result of this conversion using a SaveOptions object.
        HtmlSaveOptions saveOptions = new HtmlSaveOptions();
        saveOptions.setExportRelativeFontSize(true);
        
        Assert.assertEquals("<p style=\"margin-top:0pt; margin-bottom:8pt; line-height:108%\">" +
                "<span style=\"font-family:'Times New Roman'\">Hello World!</span>" +
                "</p>", 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() + "Rendering.docx");
        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("List item 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("\tNumerical Id: " + label.getLabelValue());
        
                // Combine them together to include the list label with the text in the output
                System.out.println("\tList label combined with text: " + label.getLabelString() + " " + paragraphText);
        
                listParaCount++;
            }
        }

        Example:

        Exports the content of a node to String in HTML format.
        Document doc = new Document(getMyDir() + "Document.docx");
        
        Node node = doc.getLastSection().getBody().getLastParagraph();
        
        // When we call the ToString method using the html SaveFormat overload,
        // it converts the node's contents to their raw html representation.
        Assert.assertEquals("<p style=\"margin-top:0pt; margin-bottom:8pt; line-height:108%; font-size:12pt\">" +
                "<span style=\"font-family:'Times New Roman'\">Hello World!</span>" +
                "</p>", node.toString(SaveFormat.HTML));
        
        // We can also modify the result of this conversion using a SaveOptions object.
        HtmlSaveOptions saveOptions = new HtmlSaveOptions();
        saveOptions.setExportRelativeFontSize(true);
        
        Assert.assertEquals("<p style=\"margin-top:0pt; margin-bottom:8pt; line-height:108%\">" +
                "<span style=\"font-family:'Times New Roman'\">Hello World!</span>" +
                "</p>", node.toString(saveOptions));

        Example:

        Shows the difference between calling the GetText and ToString methods on a node.
        Document doc = new Document();
        
        DocumentBuilder builder = new DocumentBuilder(doc);
        builder.insertField("MERGEFIELD Field");
        
        // GetText will retrieve the visible text as well as field codes and special characters.
        Assert.assertEquals("\u0013MERGEFIELD Field\u0014«Field»\u0015\f", doc.getText());
        
        // ToString will give us the document's appearance if saved to a passed save format.
        Assert.assertEquals("«Field»\r\n", doc.toString(SaveFormat.TEXT));