Пример #1
0
  /**
   * Unimplemented. See org.w3c.dom.Node
   *
   * @param newChild New child node to insert
   * @param refChild Insert in front of this child
   * @return null
   * @throws DOMException
   */
  public Node insertBefore(Node newChild, Node refChild) throws DOMException {
    if (null == refChild) {
      appendChild(newChild);
      return newChild;
    }

    if (newChild == refChild) {
      // hmm...
      return newChild;
    }

    Node node = m_firstChild;
    Node prev = null;
    boolean foundit = false;

    while (null != node) {
      // If the newChild is already in the tree, it is first removed.
      if (newChild == node) {
        if (null != prev)
          ((ElemTemplateElement) prev).m_nextSibling = (ElemTemplateElement) node.getNextSibling();
        else m_firstChild = (ElemTemplateElement) node.getNextSibling();
        node = node.getNextSibling();
        continue; // prev remains the same.
      }
      if (refChild == node) {
        if (null != prev) {
          ((ElemTemplateElement) prev).m_nextSibling = (ElemTemplateElement) newChild;
        } else {
          m_firstChild = (ElemTemplateElement) newChild;
        }
        ((ElemTemplateElement) newChild).m_nextSibling = (ElemTemplateElement) refChild;
        ((ElemTemplateElement) newChild).setParentElem(this);
        prev = newChild;
        node = node.getNextSibling();
        foundit = true;
        continue;
      }
      prev = node;
      node = node.getNextSibling();
    }

    if (!foundit)
      throw new DOMException(
          DOMException.NOT_FOUND_ERR, "refChild was not found in insertBefore method!");
    else return newChild;
  }
Пример #2
0
  /**
   * Add a child to the child list. NOTE: This presumes the child did not previously have a parent.
   * Making that assumption makes this a less expensive operation -- but requires that if you *do*
   * want to reparent a node, you use removeChild() first to remove it from its previous context.
   * Failing to do so will damage the tree.
   *
   * @param elem Child to be added to child list
   * @return Child just added to the child list
   */
  public ElemTemplateElement appendChild(ElemTemplateElement elem) {

    if (null == elem) {
      error(XSLTErrorResources.ER_NULL_CHILD, null); // "Trying to add a null child!");
    }

    if (null == m_firstChild) {
      m_firstChild = elem;
    } else {
      ElemTemplateElement last = getLastChildElem();

      last.m_nextSibling = elem;
    }

    elem.setParentElem(this);

    return elem;
  }
 /**
  * Set the parent as an ElemTemplateElement.
  *
  * @param p This node's parent as an ElemTemplateElement
  */
 public void setParentElem(ElemTemplateElement p) {
   super.setParentElem(p);
   p.m_hasVariableDecl = true;
 }
Пример #4
0
 /**
  * Set the parent of this node.
  *
  * @param n Must be a ElemTemplateElement.
  */
 public void exprSetParent(ExpressionNode n) {
   // This obviously requires that only a ElemTemplateElement can
   // parent a node of this type.
   setParentElem((ElemTemplateElement) n);
 }