Examples of nu.xom.Document.removeChild()

nu.xom.Document.removeChild()

Removes the child of this document at the specified position. Indexes begin at 0 and count up to one less than the number of children of this document. The root element cannot be removed. Instead, use setRootElement to replace the existing root element with a different element.
@param position index of the node to remove @return the node which was removed @throws IndexOutOfBoundsException if the index is negative or greater than the number of children of this document - 1 @throws WellformednessException if the index points to the root element

    if (node instanceof Document) {
      // remove all children except root element (XOM docs must have a root element) 
      Document doc = (Document) node;
      Element root = doc.getRootElement();
      for (int k = doc.getChildCount(); --k >= 0; ) {
        if (doc.getChild(k) != root) doc.removeChild(k);
      }
      node = root; // replace root element's content
    }


    if (node instanceof Element) {

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            // and then serializing into a byte array. This caches
            // the document and removes any dependence on the DTD.
            Document doc = parser.build(args[0]);
            DocType type = doc.getDocType();
            if (type != null) {
                doc.removeChild(type);   
            }
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            Serializer serializer = new Serializer(out);
            serializer.write(doc);
            serializer.flush();

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            // and then serializing into a byte array.
            // This caches the and removes any dependence on the DTD.
            Document doc = parser.build(args[0]);
            DocType type = doc.getDocType();
            if (type != null) {
                doc.removeChild(type);   
            }
            ByteArrayOutputStream out = new ByteArrayOutputStream();
            Serializer serializer = new Serializer(out);
            serializer.write(doc);
            serializer.flush();

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        catch (WellformednessException success) {
            assertNotNull(success.getMessage());
        }
        
        try {
            doc.removeChild(root);
            fail("removed root element");
        }   
        catch (WellformednessException success) {
            assertNotNull(success.getMessage());
        }

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        catch (WellformednessException success) {
            assertNotNull(success.getMessage());
        }
        
        try {
            doc.removeChild(0);
            fail("removed root element");
        }   
        catch (WellformednessException success) {
            assertNotNull(success.getMessage());
        }

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        catch (WellformednessException success) {
            assertNotNull(success.getMessage());
        }
        
        doc.appendChild(new Comment("test"));
        doc.removeChild(1);
        assertEquals(1, doc.getChildCount());
        
        Comment test = new Comment("test");
        doc.appendChild(test);
        doc.removeChild(test);

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        doc.removeChild(1);
        assertEquals(1, doc.getChildCount());
        
        Comment test = new Comment("test");
        doc.appendChild(test);
        doc.removeChild(test);
        assertEquals(1, doc.getChildCount());
        
        try {
            Comment something = new Comment("sd");
            doc.removeChild(something);

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        doc.removeChild(test);
        assertEquals(1, doc.getChildCount());
        
        try {
            Comment something = new Comment("sd");
            doc.removeChild(something);
            fail("Removed nonchild");
        }
        catch (NoSuchChildException success) {
            assertNotNull(success.getMessage());
        }

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        catch (NoSuchChildException success) {
            assertNotNull(success.getMessage());
        }


        try {
            doc.removeChild(20);
            fail("removed overly sized element");
        }   
        catch (IndexOutOfBoundsException success) {
            assertNotNull(success.getMessage());
        }

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                         expected.removeChild(doctype);
                         assertEquals("Error when processing  " 
                          + input, expected, doc);                  
                      }
                      else if (actualDoctype != null) {
                         doc.removeChild(actualDoctype);
                          assertEquals("Error when processing  " 
                          + input, expected, doc); 
                      }
                      else {
                          fail();

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