com.aspose.words

Class NodeChangingAction

java.lang.Object

com.aspose.words.NodeChangingAction

public class NodeChangingAction
extends java.lang.Object

Specifies the type of node change.

Examples:

Shows how to use a NodeChangingCallback to monitor changes to the document tree in real-time as we edit it.

 
 public void nodeChangingCallback() throws Exception {
     Document doc = new Document();
     doc.setNodeChangingCallback(new NodeChangingPrinter());

     DocumentBuilder builder = new DocumentBuilder(doc);
     builder.writeln("Hello world!");
     builder.startTable();
     builder.insertCell();
     builder.write("Cell 1");
     builder.insertCell();
     builder.write("Cell 2");
     builder.endTable();

     builder.insertImage(getImageDir() + "Logo.jpg");
     builder.getCurrentParagraph().getParentNode().removeAllChildren();
 }

 /// <summary>
 /// Prints every node insertion/removal as it takes place in the document.
 /// </summary>
 private static class NodeChangingPrinter implements INodeChangingCallback {
     public void nodeInserting(NodeChangingArgs args) {
         Assert.assertEquals(args.getAction(), NodeChangingAction.INSERT);
         Assert.assertEquals(args.getOldParent(), null);
     }

     public void nodeInserted(NodeChangingArgs args) {
         Assert.assertEquals(args.getAction(), NodeChangingAction.INSERT);
         Assert.assertNotNull(args.getNewParent());

         System.out.println("Inserted node:");
         System.out.println(MessageFormat.format("\tType:\t{0}", args.getNode().getNodeType()));

         if (!"".equals(args.getNode().getText().trim())) {
             System.out.println(MessageFormat.format("\tText:\t\"{0}\"", args.getNode().getText().trim()));
         }

         System.out.println(MessageFormat.format("\tHash:\t{0}", args.getNode().hashCode()));
         System.out.println(MessageFormat.format("\tParent:\t{0} ({1})", args.getNewParent().getNodeType(), args.getNewParent().hashCode()));
     }

     public void nodeRemoving(NodeChangingArgs args) {
         Assert.assertEquals(args.getAction(), NodeChangingAction.REMOVE);
     }

     public void nodeRemoved(NodeChangingArgs args) {
         Assert.assertEquals(args.getAction(), NodeChangingAction.REMOVE);
         Assert.assertNull(args.getNewParent());

         System.out.println(MessageFormat.format("Removed node: {0} ({1})", args.getNode().getNodeType(), args.getNode().hashCode()));
     }
 }
 
 

See Also:

NodeChangingArgs, NodeChangingArgs.getAction()

Field Summary

Fields

Modifier and Type	Field and Description
static int	INSERT A node is being inserted in the tree.
static int	length
static int	REMOVE A node is being removed from the tree.

Method Summary

Modifier and Type	Method and Description
static int	fromName(java.lang.String nodeChangingActionName)
static java.lang.String	getName(int nodeChangingAction)
static int[]	getValues()
static java.lang.String	toString(int nodeChangingAction)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

INSERT

public static int INSERT

A node is being inserted in the tree.

REMOVE

public static int REMOVE

A node is being removed from the tree.

length

public static int length

Method Detail

getName

public static java.lang.String getName(int nodeChangingAction)

toString

public static java.lang.String toString(int nodeChangingAction)

fromName

public static int fromName(java.lang.String nodeChangingActionName)

getValues

public static int[] getValues()