Node

Inheritance: java.lang.Object

All Implemented Interfaces: java.lang.Cloneable

public abstract class Node implements Cloneable

Base class for all nodes of a Word document.

To learn more, visit the Aspose.Words Document Object Model (DOM) documentation article.

Remarks:

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.

Examples:

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());

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());

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);
 // Note that the 'CustomNodeId' is not saved to an output file and exists only during the node lifetime.
 shape.setCustomNodeId(100);
 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(NodeType.ANY, false);

 Assert.assertEquals(3, paragraph.getChildNodes(NodeType.ANY, false).getCount());

 for (Node child : (Iterable) children)
     switch (child.getNodeType()) {
         case NodeType.RUN:
             System.out.println("Run contents:");
             System.out.println(MessageFormat.format("\t\"{0}\"", child.getText().trim()));
             break;
         case NodeType.SHAPE:
             Shape childShape = (Shape)child;
             System.out.println("Shape:");
             System.out.println(MessageFormat.format("\t{0}, {1}x{2}", childShape.getShapeType(), childShape.getWidth(), childShape.getHeight()));
             break;
     }

Methods

Method	Description
accept(DocumentVisitor visitor)	Accepts a visitor.
dd()
deepClone(boolean isCloneChildren)	Creates a duplicate of the node.
getAncestor(int ancestorType)
getAncestor(Class ancestorType)	Gets the first ancestor of the specified object type.
getCustomNodeId()	Specifies custom node identifier.
getDocument()	Gets the document to which this node belongs.
getNextSibling()	Gets the node immediately following this node.
getNodeType()	Gets the type of this node.
getParentNode()	Gets the immediate parent of this node.
getPreviousSibling()	Gets the node immediately preceding this node.
getRange()	Returns a Range object that represents the portion of a document that is contained in this node.
getText()	Gets the text of this node and of all its children.
isComposite()	Returns true if this node can contain other nodes.
nextPreOrder(Node rootNode)	Gets next node according to the pre-order tree traversal algorithm.
nodeTypeToString(int nodeType)
previousPreOrder(Node rootNode)	Gets the previous node according to the pre-order tree traversal algorithm.
remove()	Removes itself from the parent.
setCustomNodeId(int value)	Specifies custom node identifier.
toString()
toString(SaveOptions saveOptions)	Exports the content of the node into a string using the specified save options.
toString(int saveFormat)

accept(DocumentVisitor visitor)

public abstract boolean accept(DocumentVisitor visitor)

Accepts a visitor.

Remarks:

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.

Examples:

Shows how to use a DocumentVisitor implementation to remove all hidden content from a document.


 public void removeHiddenContentFromDocument() throws Exception {
     Document doc = new Document(getMyDir() + "Hidden content.docx");
     RemoveHiddenContentVisitor hiddenContentRemover = new RemoveHiddenContentVisitor();

     // Below are three types of fields which can accept a document visitor,
     // which will allow it to visit the accepting node, and then traverse its child nodes in a depth-first manner.
     // 1 -  Paragraph node:
     Paragraph para = (Paragraph) doc.getChild(NodeType.PARAGRAPH, 4, true);
     para.accept(hiddenContentRemover);

     // 2 -  Table node:
     Table table = doc.getFirstSection().getBody().getTables().get(0);
     table.accept(hiddenContentRemover);

     // 3 -  Document node:
     doc.accept(hiddenContentRemover);

     doc.save(getArtifactsDir() + "Font.RemoveHiddenContentFromDocument.docx");
 }

 /// 
 /// Removes all visited nodes marked as "hidden content".
 /// 
 public static class RemoveHiddenContentVisitor extends DocumentVisitor {
     /// 
     /// Called when a FieldStart node is encountered in the document.
     /// 
     public int visitFieldStart(FieldStart fieldStart) {
         if (fieldStart.getFont().getHidden())
             fieldStart.remove();

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when a FieldEnd node is encountered in the document.
     /// 
     public int visitFieldEnd(FieldEnd fieldEnd) {
         if (fieldEnd.getFont().getHidden())
             fieldEnd.remove();

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when a FieldSeparator node is encountered in the document.
     /// 
     public int visitFieldSeparator(FieldSeparator fieldSeparator) {
         if (fieldSeparator.getFont().getHidden())
             fieldSeparator.remove();

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when a Run node is encountered in the document.
     /// 
     public int visitRun(Run run) {
         if (run.getFont().getHidden())
             run.remove();

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when a Paragraph node is encountered in the document.
     /// 
     public int visitParagraphStart(Paragraph paragraph) {
         if (paragraph.getParagraphBreakFont().getHidden())
             paragraph.remove();

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when a FormField is encountered in the document.
     /// 
     public int visitFormField(FormField formField) {
         if (formField.getFont().getHidden())
             formField.remove();

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when a GroupShape is encountered in the document.
     /// 
     public int visitGroupShapeStart(GroupShape groupShape) {
         if (groupShape.getFont().getHidden())
             groupShape.remove();

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when a Shape is encountered in the document.
     /// 
     public int visitShapeStart(Shape shape) {
         if (shape.getFont().getHidden())
             shape.remove();

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when a Comment is encountered in the document.
     /// 
     public int visitCommentStart(Comment comment) {
         if (comment.getFont().getHidden())
             comment.remove();

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when a Footnote is encountered in the document.
     /// 
     public int visitFootnoteStart(Footnote footnote) {
         if (footnote.getFont().getHidden())
             footnote.remove();

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when a SpecialCharacter is encountered in the document.
     /// 
     public int visitSpecialChar(SpecialChar specialChar) {
         if (specialChar.getFont().getHidden())
             specialChar.remove();

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when visiting of a Table node is ended in the document.
     /// 
     public int visitTableEnd(Table table) {
         // The content inside table cells may have the hidden content flag, but the tables themselves cannot.
         // If this table had nothing but hidden content, this visitor would have removed all of it,
         // and there would be no child nodes left.
         // Thus, we can also treat the table itself as hidden content and remove it.
         // Tables which are empty but do not have hidden content will have cells with empty paragraphs inside,
         // which this visitor will not remove.
         if (!table.hasChildNodes())
             table.remove();

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when visiting of a Cell node is ended in the document.
     /// 
     public int visitCellEnd(Cell cell) {
         if (!cell.hasChildNodes() && cell.getParentNode() != null)
             cell.remove();

         return VisitorAction.CONTINUE;
     }

     /// 
     /// Called when visiting of a Row node is ended in the document.
     /// 
     public int visitRowEnd(Row row) {
         if (!row.hasChildNodes() && row.getParentNode() != null)
             row.remove();

         return VisitorAction.CONTINUE;
     }
 }

Parameters:

Parameter	Type	Description
visitor	DocumentVisitor	The visitor that will visit the nodes.

Returns: boolean - True if all nodes were visited; false if DocumentVisitor stopped the operation before visiting all nodes.

dd()

public void dd()

deepClone(boolean isCloneChildren)

public Node deepClone(boolean isCloneChildren)

Creates a duplicate of the node.

Remarks:

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.

Examples:

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());

Parameters:

Parameter	Type	Description
isCloneChildren	boolean	True to recursively clone the subtree under the specified node; false to clone only the node itself.

Returns: Node - The cloned node.

getAncestor(int ancestorType)

public CompositeNode getAncestor(int ancestorType)

Parameters:

Parameter	Type	Description
ancestorType	int

Returns: CompositeNode

getAncestor(Class ancestorType)

public CompositeNode getAncestor(Class ancestorType)

Gets the first ancestor of the specified object type.

Remarks:

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

Examples:

Shows how to find out if a tables are nested.


 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++) {
         Table table = (Table) tables.get(i);

         // Find out if any cells in the table have other tables as children.
         int count = getChildTableCount(table);
         System.out.print(MessageFormat.format("Table #{0} has {1} tables directly within its cells", i, count));

         // Find out if the table is nested inside another table, and, if so, 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}", 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;
     Node parent = table.getAncestor(table.getNodeType());

     while (parent != null) {
         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 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 childTableCount = 0;

     for (Row row : table.getRows()) {
         for (Cell cell : row.getCells()) {
             TableCollection childTables = cell.getTables();

             if (childTables.getCount() > 0) childTableCount++;
         }
     }

     return childTableCount;
 }

Parameters:

Parameter	Type	Description
ancestorType	java.lang.Class	The object type of the ancestor to retrieve.

Returns: CompositeNode - The ancestor of the specified type or null if no ancestor of this type was found.

getCustomNodeId()

public int getCustomNodeId()

Specifies custom node identifier.

Remarks:

Default is zero.

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

Important note, specified value is not saved to an output file and exists only during the node lifetime.

Examples:

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);
 // Note that the 'CustomNodeId' is not saved to an output file and exists only during the node lifetime.
 shape.setCustomNodeId(100);
 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(NodeType.ANY, false);

 Assert.assertEquals(3, paragraph.getChildNodes(NodeType.ANY, false).getCount());

 for (Node child : (Iterable) children)
     switch (child.getNodeType()) {
         case NodeType.RUN:
             System.out.println("Run contents:");
             System.out.println(MessageFormat.format("\t\"{0}\"", child.getText().trim()));
             break;
         case NodeType.SHAPE:
             Shape childShape = (Shape)child;
             System.out.println("Shape:");
             System.out.println(MessageFormat.format("\t{0}, {1}x{2}", childShape.getShapeType(), childShape.getWidth(), childShape.getHeight()));
             break;
     }

Returns: int - The corresponding int value.

getDocument()

public DocumentBase getDocument()

Gets the document to which this node belongs.

Remarks:

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.

Examples:

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());

Returns: DocumentBase - The document to which this node belongs.

getNextSibling()

public Node getNextSibling()

Gets the node immediately following this node.

Remarks:

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

Examples:

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()));
 }

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);
 }

 /// 
 /// 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.
 /// 
 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(MessageFormat.format(" - \"{0}\"", childNode.getText().trim()));
         } else {
             System.out.println();
         }
     }
 }

Returns: Node - The node immediately following this node.

getNodeType()

public abstract int getNodeType()

Gets the type of this node.

Examples:

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()));
 }

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());

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);
 }

 /// 
 /// 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.
 /// 
 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(MessageFormat.format(" - \"{0}\"", childNode.getText().trim()));
         } else {
             System.out.println();
         }
     }
 }

Returns: int - The type of this node. The returned value is one of NodeType constants.

getParentNode()

public CompositeNode getParentNode()

Gets the immediate parent of this node.

Remarks:

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 .

Examples:

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());

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());

Returns: CompositeNode - The immediate parent of this node.

getPreviousSibling()

public Node getPreviousSibling()

Gets the node immediately preceding this node.

Remarks:

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

Examples:

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());

Returns: Node - The node immediately preceding this node.

getRange()

public Range getRange()

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

Examples:

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 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());

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

getText()

public String getText()

Gets the text of this node and of all its children.

Remarks:

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

Examples:

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());

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 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. Create a run,
 // set its appearance and contents, and then append 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");

Returns: java.lang.String

isComposite()

public boolean isComposite()

Returns true if this node can contain other nodes. (185388,6)

Examples:

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);
 }

 /// 
 /// 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.
 /// 
 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(MessageFormat.format(" - \"{0}\"", childNode.getText().trim()));
         } else {
             System.out.println();
         }
     }
 }

Returns: boolean - true if this node can contain other nodes.

nextPreOrder(Node rootNode)

public Node nextPreOrder(Node rootNode)

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

Examples:

Shows how to traverse the document’s node tree using the pre-order traversal algorithm, and delete any encountered shape with an image.


 Document doc = new Document(getMyDir() + "Images.docx");
 ArrayList shapes = (ArrayList) IterableUtils.toList(doc.getChildNodes(NodeType.SHAPE, true));

 Assert.assertEquals(9, IterableUtils.countMatches(shapes, s -> {
     try {
         return s.hasImage();
     } catch (Exception e) {
         e.printStackTrace();
     }
     return false;
 }));

 Node curNode = doc;
 while (curNode != null) {
     Node nextNode = curNode.nextPreOrder(doc);

     if (curNode.previousPreOrder(doc) != null && nextNode != null)
         Assert.assertEquals(curNode, nextNode.previousPreOrder(doc));

     if (curNode.getNodeType() == NodeType.SHAPE && ((Shape) curNode).hasImage())
         curNode.remove();

     curNode = nextNode;
 }

 shapes = (ArrayList) IterableUtils.toList(doc.getChildNodes(NodeType.SHAPE, true));

 Assert.assertEquals(0, IterableUtils.countMatches(shapes, s -> {
     try {
         return s.hasImage();
     } catch (Exception e) {
         e.printStackTrace();
     }
     return false;
 }));

Parameters:

Parameter	Type	Description
rootNode	Node	The top node (limit) of traversal.

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

nodeTypeToString(int nodeType)

public static String nodeTypeToString(int nodeType)

Parameters:

Parameter	Type	Description
nodeType	int

Returns: java.lang.String

previousPreOrder(Node rootNode)

public Node previousPreOrder(Node rootNode)

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

Examples:

Shows how to traverse the document’s node tree using the pre-order traversal algorithm, and delete any encountered shape with an image.


 Document doc = new Document(getMyDir() + "Images.docx");
 ArrayList shapes = (ArrayList) IterableUtils.toList(doc.getChildNodes(NodeType.SHAPE, true));

 Assert.assertEquals(9, IterableUtils.countMatches(shapes, s -> {
     try {
         return s.hasImage();
     } catch (Exception e) {
         e.printStackTrace();
     }
     return false;
 }));

 Node curNode = doc;
 while (curNode != null) {
     Node nextNode = curNode.nextPreOrder(doc);

     if (curNode.previousPreOrder(doc) != null && nextNode != null)
         Assert.assertEquals(curNode, nextNode.previousPreOrder(doc));

     if (curNode.getNodeType() == NodeType.SHAPE && ((Shape) curNode).hasImage())
         curNode.remove();

     curNode = nextNode;
 }

 shapes = (ArrayList) IterableUtils.toList(doc.getChildNodes(NodeType.SHAPE, true));

 Assert.assertEquals(0, IterableUtils.countMatches(shapes, s -> {
     try {
         return s.hasImage();
     } catch (Exception e) {
         e.printStackTrace();
     }
     return false;
 }));

Parameters:

Parameter	Type	Description
rootNode	Node	The top node (limit) of traversal.

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

remove()

public void remove()

Removes itself from the parent.

Examples:

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());

Shows how to delete all shapes with images from a document.


 Document doc = new Document(getMyDir() + "Images.docx");
 ArrayList shapes = (ArrayList) IterableUtils.toList(doc.getChildNodes(NodeType.SHAPE, true));

 Assert.assertEquals(9, IterableUtils.countMatches(shapes, s -> {
     try {
         return s.hasImage();
     } catch (Exception e) {
         e.printStackTrace();
     }
     return false;
 }));

 for (Shape shape : shapes)
     if (shape.hasImage())
         shape.remove();

 shapes = (ArrayList) IterableUtils.toList(doc.getChildNodes(NodeType.SHAPE, true));

 Assert.assertEquals(0, IterableUtils.countMatches(shapes, s -> {
     try {
         return s.hasImage();
     } catch (Exception e) {
         e.printStackTrace();
     }
     return false;
 }));

setCustomNodeId(int value)

public void setCustomNodeId(int value)

Specifies custom node identifier.

Remarks:

Default is zero.

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

Important note, specified value is not saved to an output file and exists only during the node lifetime.

Examples:

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);
 // Note that the 'CustomNodeId' is not saved to an output file and exists only during the node lifetime.
 shape.setCustomNodeId(100);
 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(NodeType.ANY, false);

 Assert.assertEquals(3, paragraph.getChildNodes(NodeType.ANY, false).getCount());

 for (Node child : (Iterable) children)
     switch (child.getNodeType()) {
         case NodeType.RUN:
             System.out.println("Run contents:");
             System.out.println(MessageFormat.format("\t\"{0}\"", child.getText().trim()));
             break;
         case NodeType.SHAPE:
             Shape childShape = (Shape)child;
             System.out.println("Shape:");
             System.out.println(MessageFormat.format("\t{0}, {1}x{2}", childShape.getShapeType(), childShape.getWidth(), childShape.getHeight()));
             break;
     }

Parameters:

Parameter	Type	Description
value	int	The corresponding int value.

toString()

public String toString()

Returns: java.lang.String

toString(SaveOptions saveOptions)

public String toString(SaveOptions saveOptions)

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

Examples:

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(" " +
         "Hello World!" +
         "", 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(" " +
         "Hello World!" +
         "", node.toString(saveOptions));

Parameters:

Parameter	Type	Description
saveOptions	SaveOptions	Specifies the options that control how the node is saved.

Returns: java.lang.String - The content of the node in the specified format.

toString(int saveFormat)

public String toString(int saveFormat)

Parameters:

Parameter	Type	Description
saveFormat	int

Returns: java.lang.String

NativeLibSettings NodeChangingAction