public abstract class CompositeNode extends Node implements java.lang.Iterable
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 CompositeNode class:
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<Node>) 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;
}
| Modifier | Constructor and Description |
|---|---|
protected |
CompositeNode()
Initializes a new instance of this class.
|
protected |
CompositeNode(DocumentBase doc)
Initializes a new instance of this class.
|
| Modifier and Type | Method and Description |
|---|---|
protected boolean |
acceptChildren(DocumentVisitor visitor) |
protected boolean |
acceptCore(DocumentVisitor visitor) |
abstract int |
acceptEnd(DocumentVisitor visitor)
When implemented in a derived class, calls the VisitXXXEnd method of the specified document visitor.
|
abstract int |
acceptStart(DocumentVisitor visitor)
When implemented in a derived class, calls the VisitXXXStart method of the specified document visitor.
|
Node |
appendChild(Node newChild)
Adds the specified node to the end of the list of child nodes for this node.
|
protected void |
coreRemoveSelfOnly() |
Node |
getChild(int nodeType,
int index,
boolean isDeep) |
NodeCollection |
getChildNodes(int nodeType,
boolean isDeep) |
CompositeNode |
getContainer() |
int |
getCount()
Gets the number of immediate children of this node.
|
Node |
getCurrentNode() |
Node |
getFirstChild()
Gets the first child of the node.
|
Node |
getLastChild()
Gets the last child of the node.
|
Node |
getNextMatchingNode(Node curNode) |
java.lang.String |
getText()
Gets the text of this node and of all its children.
|
boolean |
hasChildNodes()
Returns
true if this node has any child nodes. |
int |
indexOf(Node child)
Returns the index of the specified child node in the child node array.
|
Node |
insertAfter(Node newChild,
Node refChild)
Inserts the specified node immediately after the specified reference node.
|
Node |
insertBefore(Node newChild,
Node refChild)
Inserts the specified node immediately before the specified reference node.
|
boolean |
isComposite()
Returns
true as this node can have child nodes. |
java.util.Iterator |
iterator()
Provides support for the for each style iteration over the child nodes of this node.
|
Node |
prependChild(Node newChild)
Adds the specified node to the beginning of the list of child nodes for this node.
|
void |
removeAllChildren()
Removes all the child nodes of the current node.
|
Node |
removeChild(Node oldChild)
Removes the specified child node.
|
void |
removeSmartTags()
Removes all
SmartTag descendant nodes of the current node. |
NodeList |
selectNodes(java.lang.String xpath)
Selects a list of nodes matching the XPath expression.
|
Node |
selectSingleNode(java.lang.String xpath)
Selects the first
Node that matches the XPath expression. |
accept, deepClone, getAncestor, getAncestor, getCustomNodeId, getDocument, getNextSibling, getNodeType, getParentNode, getPreviousSibling, getRange, memberwiseClone, nextPreOrder, nodeTypeToString, previousPreOrder, remove, setCustomNodeId, toString, toString, toString, visitorActionToBoolprotected CompositeNode()
protected CompositeNode(DocumentBase doc)
protected void coreRemoveSelfOnly()
public boolean isComposite()
true as this node can have child nodes.
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);
}
/// <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>
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();
}
}
}
isComposite in class Nodetrue as this node can have child nodes.public boolean hasChildNodes()
true if this node has any child nodes.
Examples:
Shows how to combine the rows from two tables into one.
Document doc = new Document(getMyDir() + "Tables.docx");
// Below are two ways of getting a table from a document.
// 1 - From the "Tables" collection of a Body node:
Table firstTable = doc.getFirstSection().getBody().getTables().get(0);
// 2 - Using the "GetChild" method:
Table secondTable = (Table) doc.getChild(NodeType.TABLE, 1, true);
// Append all rows from the current table to the next.
while (secondTable.hasChildNodes())
firstTable.getRows().add(secondTable.getFirstRow());
// Remove the empty table container.
secondTable.remove();
doc.save(getArtifactsDir() + "Table.CombineTables.docx");
true if this node has any child nodes.public Node getFirstChild()
Remarks:
If there is no first child 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);
}
/// <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>
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();
}
}
}
public Node getLastChild()
Remarks:
If there is no last child 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());
public int getCount()
Examples:
Shows how to add, update and delete child nodes in a CompositeNode's collection of children.
Document doc = new Document();
// An empty document, by default, has one paragraph.
Assert.assertEquals(1, doc.getFirstSection().getBody().getParagraphs().getCount());
// Composite nodes such as our paragraph can contain other composite and inline nodes as children.
Paragraph paragraph = doc.getFirstSection().getBody().getFirstParagraph();
Run paragraphText = new Run(doc, "Initial text. ");
paragraph.appendChild(paragraphText);
// Create three more run nodes.
Run run1 = new Run(doc, "Run 1. ");
Run run2 = new Run(doc, "Run 2. ");
Run run3 = new Run(doc, "Run 3. ");
// The document body will not display these runs until we insert them into a composite node
// that itself is a part of the document's node tree, as we did with the first run.
// We can determine where the text contents of nodes that we insert
// appears in the document by specifying an insertion location relative to another node in the paragraph.
Assert.assertEquals("Initial text.", paragraph.getText().trim());
// Insert the second run into the paragraph in front of the initial run.
paragraph.insertBefore(run2, paragraphText);
Assert.assertEquals("Run 2. Initial text.", paragraph.getText().trim());
// Insert the third run after the initial run.
paragraph.insertAfter(run3, paragraphText);
Assert.assertEquals("Run 2. Initial text. Run 3.", paragraph.getText().trim());
// Insert the first run to the start of the paragraph's child nodes collection.
paragraph.prependChild(run1);
Assert.assertEquals("Run 1. Run 2. Initial text. Run 3.", paragraph.getText().trim());
Assert.assertEquals(4, paragraph.getChildNodes(NodeType.ANY, true).getCount());
// We can modify the contents of the run by editing and deleting existing child nodes.
((Run) paragraph.getChildNodes(NodeType.RUN, true).get(1)).setText("Updated run 2. ");
paragraph.getChildNodes(NodeType.RUN, true).remove(paragraphText);
Assert.assertEquals("Run 1. Updated run 2. Run 3.", paragraph.getText().trim());
Assert.assertEquals(3, paragraph.getChildNodes(NodeType.ANY, true).getCount());
public java.lang.String getText()
Remarks:
The returned string includes all control and special characters as described in ControlChar.
Examples:
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("MERGEFIELD Field«Field»\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));
Shows how to output all paragraphs in a document that are list items.
Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);
builder.getListFormat().applyNumberDefault();
builder.writeln("Numbered list item 1");
builder.writeln("Numbered list item 2");
builder.writeln("Numbered list item 3");
builder.getListFormat().removeNumbers();
builder.getListFormat().applyBulletDefault();
builder.writeln("Bulleted list item 1");
builder.writeln("Bulleted list item 2");
builder.writeln("Bulleted list item 3");
builder.getListFormat().removeNumbers();
NodeCollection paras = doc.getChildNodes(NodeType.PARAGRAPH, true);
for (Paragraph para : (Iterable<Paragraph>) paras) {
if (para.getListFormat().isListItem()) {
System.out.println(java.text.MessageFormat.format("*** A paragraph belongs to list {0}", para.getListFormat().getList().getListId()));
System.out.println(para.getText());
}
}
public NodeCollection getChildNodes(int nodeType, boolean isDeep)
public Node getChild(int nodeType, int index, boolean isDeep)
public NodeList selectNodes(java.lang.String xpath)
Remarks:
Only expressions with element names are supported at the moment. Expressions that use attribute names are not supported.
Examples:
Shows how to use an XPath expression to test whether a node is inside a field.
Document doc = new Document(getMyDir() + "Mail merge destination - Northwind employees.docx");
// The NodeList that results from this XPath expression will contain all nodes we find inside a field.
// However, FieldStart and FieldEnd nodes can be on the list if there are nested fields in the path.
// Currently does not find rare fields in which the FieldCode or FieldResult spans across multiple paragraphs.
NodeList resultList =
doc.selectNodes("//FieldStart/following-sibling::node()[following-sibling::FieldEnd]");
Run[] runs = Arrays.stream(resultList.toArray()).filter(n -> n.getNodeType() == NodeType.RUN).toArray(Run[]::new);
Run run = runs[0];
// Check if the specified run is one of the nodes that are inside the field.
System.out.println(MessageFormat.format("Contents of the first Run node that''s part of a field: {0}", run.getText().trim()));
Shows how to select certain nodes by using an XPath expression.
Document doc = new Document(getMyDir() + "Tables.docx");
// This expression will extract all paragraph nodes,
// which are descendants of any table node in the document.
NodeList nodeList = doc.selectNodes("//Table//Paragraph");
// Iterate through the list with an enumerator and print the contents of every paragraph in each cell of the table.
int index = 0;
Iterator<Node> e = nodeList.iterator();
while (e.hasNext()) {
Node currentNode = e.next();
System.out.println(MessageFormat.format("Table paragraph index {0}, contents: \"{1}\"", index++, currentNode.getText().trim()));
}
// This expression will select any paragraphs that are direct children of any Body node in the document.
nodeList = doc.selectNodes("//Body/Paragraph");
// We can treat the list as an array.
Assert.assertEquals(nodeList.toArray().length, 4);
// Use SelectSingleNode to select the first result of the same expression as above.
Node node = doc.selectSingleNode("//Body/Paragraph");
Assert.assertEquals(Paragraph.class, node.getClass());
xpath - The XPath expression.public Node selectSingleNode(java.lang.String xpath)
Node that matches the XPath expression.
Remarks:
Only expressions with element names are supported at the moment. Expressions that use attribute names are not supported.
Examples:
Shows how to select certain nodes by using an XPath expression.
Document doc = new Document(getMyDir() + "Tables.docx");
// This expression will extract all paragraph nodes,
// which are descendants of any table node in the document.
NodeList nodeList = doc.selectNodes("//Table//Paragraph");
// Iterate through the list with an enumerator and print the contents of every paragraph in each cell of the table.
int index = 0;
Iterator<Node> e = nodeList.iterator();
while (e.hasNext()) {
Node currentNode = e.next();
System.out.println(MessageFormat.format("Table paragraph index {0}, contents: \"{1}\"", index++, currentNode.getText().trim()));
}
// This expression will select any paragraphs that are direct children of any Body node in the document.
nodeList = doc.selectNodes("//Body/Paragraph");
// We can treat the list as an array.
Assert.assertEquals(nodeList.toArray().length, 4);
// Use SelectSingleNode to select the first result of the same expression as above.
Node node = doc.selectSingleNode("//Body/Paragraph");
Assert.assertEquals(Paragraph.class, node.getClass());
xpath - The XPath expression.Node that matches the XPath query or null if no matching node is found.public java.util.Iterator iterator()
Examples:
Shows how to print all of a document's comments and their replies.
Document doc = new Document(getMyDir() + "Comments.docx");
NodeCollection comments = doc.getChildNodes(NodeType.COMMENT, true);
// If a comment has no ancestor, it is a "top-level" comment as opposed to a reply-type comment.
// Print all top-level comments along with any replies they may have.
for (Comment comment : (Iterable<Comment>) comments) {
if (comment.getAncestor() == null) {
System.out.println("Top-level comment:");
System.out.println("\t\"{comment.GetText().Trim()}\", by {comment.Author}");
System.out.println("Has {comment.Replies.Count} replies");
for (Comment commentReply : comment.getReplies()) {
System.out.println("\t\"{commentReply.GetText().Trim()}\", by {commentReply.Author}");
}
System.out.println();
}
}
iterator in interface java.lang.Iterablepublic Node appendChild(Node newChild)
Remarks:
If the newChild is already in the tree, it is first removed.
If the node being inserted was created from another document, you should use M:Aspose.Words.DocumentBase.ImportNode(Aspose.Words.Node,System.Boolean,Aspose.Words.ImportFormatMode) to import the node to the current document. The imported node can then be inserted into the current document.
Examples:
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");
newChild - The node to add.public Node prependChild(Node newChild)
Remarks:
If the newChild is already in the tree, it is first removed.
If the node being inserted was created from another document, you should use M:Aspose.Words.DocumentBase.ImportNode(Aspose.Words.Node,System.Boolean,Aspose.Words.ImportFormatMode) to import the node to the current document. The imported node can then be inserted into the current document.
Examples:
Shows how to add, update and delete child nodes in a CompositeNode's collection of children.
Document doc = new Document();
// An empty document, by default, has one paragraph.
Assert.assertEquals(1, doc.getFirstSection().getBody().getParagraphs().getCount());
// Composite nodes such as our paragraph can contain other composite and inline nodes as children.
Paragraph paragraph = doc.getFirstSection().getBody().getFirstParagraph();
Run paragraphText = new Run(doc, "Initial text. ");
paragraph.appendChild(paragraphText);
// Create three more run nodes.
Run run1 = new Run(doc, "Run 1. ");
Run run2 = new Run(doc, "Run 2. ");
Run run3 = new Run(doc, "Run 3. ");
// The document body will not display these runs until we insert them into a composite node
// that itself is a part of the document's node tree, as we did with the first run.
// We can determine where the text contents of nodes that we insert
// appears in the document by specifying an insertion location relative to another node in the paragraph.
Assert.assertEquals("Initial text.", paragraph.getText().trim());
// Insert the second run into the paragraph in front of the initial run.
paragraph.insertBefore(run2, paragraphText);
Assert.assertEquals("Run 2. Initial text.", paragraph.getText().trim());
// Insert the third run after the initial run.
paragraph.insertAfter(run3, paragraphText);
Assert.assertEquals("Run 2. Initial text. Run 3.", paragraph.getText().trim());
// Insert the first run to the start of the paragraph's child nodes collection.
paragraph.prependChild(run1);
Assert.assertEquals("Run 1. Run 2. Initial text. Run 3.", paragraph.getText().trim());
Assert.assertEquals(4, paragraph.getChildNodes(NodeType.ANY, true).getCount());
// We can modify the contents of the run by editing and deleting existing child nodes.
((Run) paragraph.getChildNodes(NodeType.RUN, true).get(1)).setText("Updated run 2. ");
paragraph.getChildNodes(NodeType.RUN, true).remove(paragraphText);
Assert.assertEquals("Run 1. Updated run 2. Run 3.", paragraph.getText().trim());
Assert.assertEquals(3, paragraph.getChildNodes(NodeType.ANY, true).getCount());
newChild - The node to add.public Node insertAfter(Node newChild, Node refChild)
Remarks:
If refChild is null, inserts newChild at the beginning of the list of child nodes.
If the newChild is already in the tree, it is first removed.
If the node being inserted was created from another document, you should use M:Aspose.Words.DocumentBase.ImportNode(Aspose.Words.Node,System.Boolean,Aspose.Words.ImportFormatMode) to import the node to the current document. The imported node can then be inserted into the current document.
Examples:
Shows how to replace all textbox shapes with image shapes.
Document doc = new Document(getMyDir() + "Textboxes in drawing canvas.docx");
List<Shape> shapeList = Arrays.stream(doc.getChildNodes(NodeType.SHAPE, true).toArray())
.filter(Shape.class::isInstance)
.map(Shape.class::cast)
.collect(Collectors.toList());
Assert.assertEquals(3, IterableUtils.countMatches(shapeList, s -> s.getShapeType() == ShapeType.TEXT_BOX));
Assert.assertEquals(1, IterableUtils.countMatches(shapeList, s -> s.getShapeType() == ShapeType.IMAGE));
for (Shape shape : shapeList) {
if (((shape.getShapeType()) == (ShapeType.TEXT_BOX))) {
Shape replacementShape = new Shape(doc, ShapeType.IMAGE);
replacementShape.getImageData().setImage(getImageDir() + "Logo.jpg");
replacementShape.setLeft(shape.getLeft());
replacementShape.setTop(shape.getTop());
replacementShape.setWidth(shape.getWidth());
replacementShape.setHeight(shape.getHeight());
replacementShape.setRelativeHorizontalPosition(shape.getRelativeHorizontalPosition());
replacementShape.setRelativeVerticalPosition(shape.getRelativeVerticalPosition());
replacementShape.setHorizontalAlignment(shape.getHorizontalAlignment());
replacementShape.setVerticalAlignment(shape.getVerticalAlignment());
replacementShape.setWrapType(shape.getWrapType());
replacementShape.setWrapSide(shape.getWrapSide());
shape.getParentNode().insertAfter(replacementShape, shape);
shape.remove();
}
}
shapeList = Arrays.stream(doc.getChildNodes(NodeType.SHAPE, true).toArray())
.filter(Shape.class::isInstance)
.map(Shape.class::cast)
.collect(Collectors.toList());
Assert.assertEquals(0, IterableUtils.countMatches(shapeList, s -> s.getShapeType() == ShapeType.TEXT_BOX));
Assert.assertEquals(4, IterableUtils.countMatches(shapeList, s -> s.getShapeType() == ShapeType.IMAGE));
doc.save(getArtifactsDir() + "Shape.ReplaceTextboxesWithImages.docx");
Shows how to add, update and delete child nodes in a CompositeNode's collection of children.
Document doc = new Document();
// An empty document, by default, has one paragraph.
Assert.assertEquals(1, doc.getFirstSection().getBody().getParagraphs().getCount());
// Composite nodes such as our paragraph can contain other composite and inline nodes as children.
Paragraph paragraph = doc.getFirstSection().getBody().getFirstParagraph();
Run paragraphText = new Run(doc, "Initial text. ");
paragraph.appendChild(paragraphText);
// Create three more run nodes.
Run run1 = new Run(doc, "Run 1. ");
Run run2 = new Run(doc, "Run 2. ");
Run run3 = new Run(doc, "Run 3. ");
// The document body will not display these runs until we insert them into a composite node
// that itself is a part of the document's node tree, as we did with the first run.
// We can determine where the text contents of nodes that we insert
// appears in the document by specifying an insertion location relative to another node in the paragraph.
Assert.assertEquals("Initial text.", paragraph.getText().trim());
// Insert the second run into the paragraph in front of the initial run.
paragraph.insertBefore(run2, paragraphText);
Assert.assertEquals("Run 2. Initial text.", paragraph.getText().trim());
// Insert the third run after the initial run.
paragraph.insertAfter(run3, paragraphText);
Assert.assertEquals("Run 2. Initial text. Run 3.", paragraph.getText().trim());
// Insert the first run to the start of the paragraph's child nodes collection.
paragraph.prependChild(run1);
Assert.assertEquals("Run 1. Run 2. Initial text. Run 3.", paragraph.getText().trim());
Assert.assertEquals(4, paragraph.getChildNodes(NodeType.ANY, true).getCount());
// We can modify the contents of the run by editing and deleting existing child nodes.
((Run) paragraph.getChildNodes(NodeType.RUN, true).get(1)).setText("Updated run 2. ");
paragraph.getChildNodes(NodeType.RUN, true).remove(paragraphText);
Assert.assertEquals("Run 1. Updated run 2. Run 3.", paragraph.getText().trim());
Assert.assertEquals(3, paragraph.getChildNodes(NodeType.ANY, true).getCount());
public Node insertBefore(Node newChild, Node refChild)
Remarks:
If refChild is null, inserts newChild at the end of the list of child nodes.
If the newChild is already in the tree, it is first removed.
If the node being inserted was created from another document, you should use M:Aspose.Words.DocumentBase.ImportNode(Aspose.Words.Node,System.Boolean,Aspose.Words.ImportFormatMode) to import the node to the current document. The imported node can then be inserted into the current document.
Examples:
Shows how to add, update and delete child nodes in a CompositeNode's collection of children.
Document doc = new Document();
// An empty document, by default, has one paragraph.
Assert.assertEquals(1, doc.getFirstSection().getBody().getParagraphs().getCount());
// Composite nodes such as our paragraph can contain other composite and inline nodes as children.
Paragraph paragraph = doc.getFirstSection().getBody().getFirstParagraph();
Run paragraphText = new Run(doc, "Initial text. ");
paragraph.appendChild(paragraphText);
// Create three more run nodes.
Run run1 = new Run(doc, "Run 1. ");
Run run2 = new Run(doc, "Run 2. ");
Run run3 = new Run(doc, "Run 3. ");
// The document body will not display these runs until we insert them into a composite node
// that itself is a part of the document's node tree, as we did with the first run.
// We can determine where the text contents of nodes that we insert
// appears in the document by specifying an insertion location relative to another node in the paragraph.
Assert.assertEquals("Initial text.", paragraph.getText().trim());
// Insert the second run into the paragraph in front of the initial run.
paragraph.insertBefore(run2, paragraphText);
Assert.assertEquals("Run 2. Initial text.", paragraph.getText().trim());
// Insert the third run after the initial run.
paragraph.insertAfter(run3, paragraphText);
Assert.assertEquals("Run 2. Initial text. Run 3.", paragraph.getText().trim());
// Insert the first run to the start of the paragraph's child nodes collection.
paragraph.prependChild(run1);
Assert.assertEquals("Run 1. Run 2. Initial text. Run 3.", paragraph.getText().trim());
Assert.assertEquals(4, paragraph.getChildNodes(NodeType.ANY, true).getCount());
// We can modify the contents of the run by editing and deleting existing child nodes.
((Run) paragraph.getChildNodes(NodeType.RUN, true).get(1)).setText("Updated run 2. ");
paragraph.getChildNodes(NodeType.RUN, true).remove(paragraphText);
Assert.assertEquals("Run 1. Updated run 2. Run 3.", paragraph.getText().trim());
Assert.assertEquals(3, paragraph.getChildNodes(NodeType.ANY, true).getCount());
public Node removeChild(Node oldChild)
Remarks:
The parent of oldChild is set to null after the node is removed.
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());
oldChild - The node to remove.public void removeAllChildren()
Examples:
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");
public void removeSmartTags()
SmartTag descendant nodes of the current node.
Remarks:
This method does not remove the content of the smart tags.
Examples:
Removes all smart tags from descendant nodes of a composite node.
Document doc = new Document(getMyDir() + "Smart tags.doc");
Assert.assertEquals(8, doc.getChildNodes(NodeType.SMART_TAG, true).getCount());
doc.removeSmartTags();
Assert.assertEquals(0, doc.getChildNodes(NodeType.SMART_TAG, true).getCount());
Shows how to create smart tags.
public void create() throws Exception {
Document doc = new Document();
// A smart tag appears in a document with Microsoft Word recognizes a part of its text as some form of data,
// such as a name, date, or address, and converts it to a hyperlink that displays a purple dotted underline.
SmartTag smartTag = new SmartTag(doc);
// Smart tags are composite nodes that contain their recognized text in its entirety.
// Add contents to this smart tag manually.
smartTag.appendChild(new Run(doc, "May 29, 2019"));
// Microsoft Word may recognize the above contents as being a date.
// Smart tags use the "Element" property to reflect the type of data they contain.
smartTag.setElement("date");
// Some smart tag types process their contents further into custom XML properties.
smartTag.getProperties().add(new CustomXmlProperty("Day", "", "29"));
smartTag.getProperties().add(new CustomXmlProperty("Month", "", "5"));
smartTag.getProperties().add(new CustomXmlProperty("Year", "", "2019"));
// Set the smart tag's URI to the default value.
smartTag.setUri("urn:schemas-microsoft-com:office:smarttags");
doc.getFirstSection().getBody().getFirstParagraph().appendChild(smartTag);
doc.getFirstSection().getBody().getFirstParagraph().appendChild(new Run(doc, " is a date. "));
// Create another smart tag for a stock ticker.
smartTag = new SmartTag(doc);
smartTag.setElement("stockticker");
smartTag.setUri("urn:schemas-microsoft-com:office:smarttags");
smartTag.appendChild(new Run(doc, "MSFT"));
doc.getFirstSection().getBody().getFirstParagraph().appendChild(smartTag);
doc.getFirstSection().getBody().getFirstParagraph().appendChild(new Run(doc, " is a stock ticker."));
// Print all the smart tags in our document using a document visitor.
doc.accept(new SmartTagPrinter());
// Older versions of Microsoft Word support smart tags.
doc.save(getArtifactsDir() + "SmartTag.Create.doc");
// Use the "RemoveSmartTags" method to remove all smart tags from a document.
Assert.assertEquals(2, doc.getChildNodes(NodeType.SMART_TAG, true).getCount());
doc.removeSmartTags();
Assert.assertEquals(0, doc.getChildNodes(NodeType.SMART_TAG, true).getCount());
}
/// <summary>
/// Prints visited smart tags and their contents.
/// </summary>
private static class SmartTagPrinter extends DocumentVisitor {
/// <summary>
/// Called when a SmartTag node is encountered in the document.
/// </summary>
public int visitSmartTagStart(SmartTag smartTag) {
System.out.println("Smart tag type: {smartTag.Element}");
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called when the visiting of a SmartTag node is ended.
/// </summary>
public int visitSmartTagEnd(SmartTag smartTag) {
System.out.println("\tContents: \"{smartTag.ToString(SaveFormat.Text)}\"");
if (smartTag.getProperties().getCount() == 0) {
System.out.println("\tContains no properties");
} else {
System.out.println("\tProperties: ");
String[] properties = new String[smartTag.getProperties().getCount()];
int index = 0;
for (CustomXmlProperty cxp : smartTag.getProperties())
properties[index++] = MessageFormat.format("\"{0}\" = \"{1}\"", cxp.getName(), cxp.getValue());
System.out.println(StringUtils.join(properties, ", "));
}
return VisitorAction.CONTINUE;
}
}
public int indexOf(Node child)
Remarks:
Returns -1 if the node is not found in the child nodes.
Examples:
Shows how to get the index of a given child node from its parent.
Document doc = new Document(getMyDir() + "Rendering.docx");
Body body = doc.getFirstSection().getBody();
// Retrieve the index of the last paragraph in the body of the first section.
Assert.assertEquals(24, body.getChildNodes(NodeType.ANY, false).indexOf(body.getLastParagraph()));
protected boolean acceptCore(DocumentVisitor visitor) throws java.lang.Exception
java.lang.Exceptionpublic abstract int acceptStart(DocumentVisitor visitor) throws java.lang.Exception
Examples:
Shows how to use a document visitor to print a document's node structure.
public void docStructureToText() throws Exception {
Document doc = new Document(getMyDir() + "DocumentVisitor-compatible features.docx");
DocStructurePrinter visitor = new DocStructurePrinter();
// When we get a composite node to accept a document visitor, the visitor visits the accepting node,
// and then traverses all the node's children in a depth-first manner.
// The visitor can read and modify each visited node.
doc.accept(visitor);
System.out.println(visitor.getText());
}
/// <summary>
/// Traverses a node's tree of child nodes.
/// Creates a map of this tree in the form of a string.
/// </summary>
public static class DocStructurePrinter extends DocumentVisitor {
public DocStructurePrinter() {
mAcceptingNodeChildTree = new StringBuilder();
}
public String getText() {
return mAcceptingNodeChildTree.toString();
}
/// <summary>
/// Called when a Document node is encountered.
/// </summary>
public int visitDocumentStart(Document doc) {
int childNodeCount = doc.getChildNodes(NodeType.ANY, true).getCount();
indentAndAppendLine("[Document start] Child nodes: " + childNodeCount);
mDocTraversalDepth++;
// Allow the visitor to continue visiting other nodes.
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called after all the child nodes of a Document node have been visited.
/// </summary>
public int visitDocumentEnd(Document doc) {
mDocTraversalDepth--;
indentAndAppendLine("[Document end]");
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called when a Section node is encountered in the document.
/// </summary>
public int visitSectionStart(final Section section) {
// Get the index of our section within the document
NodeCollection docSections = section.getDocument().getChildNodes(NodeType.SECTION, false);
int sectionIndex = docSections.indexOf(section);
indentAndAppendLine("[Section start] Section index: " + sectionIndex);
mDocTraversalDepth++;
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called after all the child nodes of a Section node have been visited.
/// </summary>
public int visitSectionEnd(final Section section) {
mDocTraversalDepth--;
indentAndAppendLine("[Section end]");
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called when a Body node is encountered in the document.
/// </summary>
public int visitBodyStart(final Body body) {
int paragraphCount = body.getParagraphs().getCount();
indentAndAppendLine("[Body start] Paragraphs: " + paragraphCount);
mDocTraversalDepth++;
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called after all the child nodes of a Body node have been visited.
/// </summary>
public int visitBodyEnd(final Body body) {
mDocTraversalDepth--;
indentAndAppendLine("[Body end]");
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called when a Paragraph node is encountered in the document.
/// </summary>
public int visitParagraphStart(final Paragraph paragraph) {
indentAndAppendLine("[Paragraph start]");
mDocTraversalDepth++;
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called after all the child nodes of a Paragraph node have been visited.
/// </summary>
public int visitParagraphEnd(final Paragraph paragraph) {
mDocTraversalDepth--;
indentAndAppendLine("[Paragraph end]");
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called when a Run node is encountered in the document.
/// </summary>
public int visitRun(final Run run) {
indentAndAppendLine("[Run] \"" + run.getText() + "\"");
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called when a SubDocument node is encountered in the document.
/// </summary>
public int visitSubDocument(final SubDocument subDocument) {
indentAndAppendLine("[SubDocument]");
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called when a SubDocument node is encountered in the document.
/// </summary>
public int visitStructuredDocumentTagRangeStart(StructuredDocumentTagRangeStart sdtRangeStart)
{
indentAndAppendLine("[SdtRangeStart]");
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called when a SubDocument node is encountered in the document.
/// </summary>
public int visitStructuredDocumentTagRangeEnd(StructuredDocumentTagRangeEnd sdtRangeEnd)
{
indentAndAppendLine("[SdtRangeEnd]");
return VisitorAction.CONTINUE;
}
/// <summary>
/// Append a line to the StringBuilder and indent it depending on how deep the visitor is into the document tree.
/// </summary>
/// <param name="text"></param>
private void indentAndAppendLine(final String text) {
for (int i = 0; i < mDocTraversalDepth; i++) {
mAcceptingNodeChildTree.append("| ");
}
mAcceptingNodeChildTree.append(text + "\r\n");
}
private int mDocTraversalDepth;
private final StringBuilder mAcceptingNodeChildTree;
}
java.lang.Exceptionpublic abstract int acceptEnd(DocumentVisitor visitor) throws java.lang.Exception
Examples:
Shows how to use a document visitor to print a document's node structure.
public void docStructureToText() throws Exception {
Document doc = new Document(getMyDir() + "DocumentVisitor-compatible features.docx");
DocStructurePrinter visitor = new DocStructurePrinter();
// When we get a composite node to accept a document visitor, the visitor visits the accepting node,
// and then traverses all the node's children in a depth-first manner.
// The visitor can read and modify each visited node.
doc.accept(visitor);
System.out.println(visitor.getText());
}
/// <summary>
/// Traverses a node's tree of child nodes.
/// Creates a map of this tree in the form of a string.
/// </summary>
public static class DocStructurePrinter extends DocumentVisitor {
public DocStructurePrinter() {
mAcceptingNodeChildTree = new StringBuilder();
}
public String getText() {
return mAcceptingNodeChildTree.toString();
}
/// <summary>
/// Called when a Document node is encountered.
/// </summary>
public int visitDocumentStart(Document doc) {
int childNodeCount = doc.getChildNodes(NodeType.ANY, true).getCount();
indentAndAppendLine("[Document start] Child nodes: " + childNodeCount);
mDocTraversalDepth++;
// Allow the visitor to continue visiting other nodes.
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called after all the child nodes of a Document node have been visited.
/// </summary>
public int visitDocumentEnd(Document doc) {
mDocTraversalDepth--;
indentAndAppendLine("[Document end]");
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called when a Section node is encountered in the document.
/// </summary>
public int visitSectionStart(final Section section) {
// Get the index of our section within the document
NodeCollection docSections = section.getDocument().getChildNodes(NodeType.SECTION, false);
int sectionIndex = docSections.indexOf(section);
indentAndAppendLine("[Section start] Section index: " + sectionIndex);
mDocTraversalDepth++;
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called after all the child nodes of a Section node have been visited.
/// </summary>
public int visitSectionEnd(final Section section) {
mDocTraversalDepth--;
indentAndAppendLine("[Section end]");
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called when a Body node is encountered in the document.
/// </summary>
public int visitBodyStart(final Body body) {
int paragraphCount = body.getParagraphs().getCount();
indentAndAppendLine("[Body start] Paragraphs: " + paragraphCount);
mDocTraversalDepth++;
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called after all the child nodes of a Body node have been visited.
/// </summary>
public int visitBodyEnd(final Body body) {
mDocTraversalDepth--;
indentAndAppendLine("[Body end]");
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called when a Paragraph node is encountered in the document.
/// </summary>
public int visitParagraphStart(final Paragraph paragraph) {
indentAndAppendLine("[Paragraph start]");
mDocTraversalDepth++;
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called after all the child nodes of a Paragraph node have been visited.
/// </summary>
public int visitParagraphEnd(final Paragraph paragraph) {
mDocTraversalDepth--;
indentAndAppendLine("[Paragraph end]");
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called when a Run node is encountered in the document.
/// </summary>
public int visitRun(final Run run) {
indentAndAppendLine("[Run] \"" + run.getText() + "\"");
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called when a SubDocument node is encountered in the document.
/// </summary>
public int visitSubDocument(final SubDocument subDocument) {
indentAndAppendLine("[SubDocument]");
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called when a SubDocument node is encountered in the document.
/// </summary>
public int visitStructuredDocumentTagRangeStart(StructuredDocumentTagRangeStart sdtRangeStart)
{
indentAndAppendLine("[SdtRangeStart]");
return VisitorAction.CONTINUE;
}
/// <summary>
/// Called when a SubDocument node is encountered in the document.
/// </summary>
public int visitStructuredDocumentTagRangeEnd(StructuredDocumentTagRangeEnd sdtRangeEnd)
{
indentAndAppendLine("[SdtRangeEnd]");
return VisitorAction.CONTINUE;
}
/// <summary>
/// Append a line to the StringBuilder and indent it depending on how deep the visitor is into the document tree.
/// </summary>
/// <param name="text"></param>
private void indentAndAppendLine(final String text) {
for (int i = 0; i < mDocTraversalDepth; i++) {
mAcceptingNodeChildTree.append("| ");
}
mAcceptingNodeChildTree.append(text + "\r\n");
}
private int mDocTraversalDepth;
private final StringBuilder mAcceptingNodeChildTree;
}
java.lang.Exceptionprotected boolean acceptChildren(DocumentVisitor visitor) throws java.lang.Exception
java.lang.Exceptionpublic Node getCurrentNode()
public CompositeNode getContainer()