Examples of org.apache.myfaces.tobago.model.TreePath

org.apache.myfaces.tobago.model.TreePath

Handles a path in a tree from the root node to the position inside this tree. The position of the root node is dropped in the list, because it would always be zero. The path of the root node as length 0.

Example:

 + Root               Path: [] | +-+ Node             Path: [0] | | | +-+ Sub-Node       Path: [0, 0] | | | +-+ Sub-Node       Path: [0, 1] | +-+ Node             Path: [1] | +-+ Sub-Node       Path: [1, 0] | +-+ Sub-Node       Path: [1, 1] | +-+ Sub-Node       Path: [1, 2]

@since 1.5.0

    setRowIndex(facesContext, null);


    int index = 0;
    for (Enumeration e = node.children(); e.hasMoreElements();) {
      DefaultMutableTreeNode sub = (DefaultMutableTreeNode) e.nextElement();
      encodeNodes(facesContext, sub, new TreePath(position, index));
      index++;
    }


    setRowIndex(facesContext, position);
    LOG.debug("path index (end)    = '" + position + "'");

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  @Override
  public void broadcast(FacesEvent event) throws AbortProcessingException {
    if (event instanceof FacesEventWrapper) {
      FacesContext facesContext = FacesContext.getCurrentInstance();
      FacesEvent originalEvent = ((FacesEventWrapper) event).getWrappedFacesEvent();
      TreePath eventPathIndex = ((FacesEventWrapper) event).getRowIndex();
      TreePath currentPathIndex = getRowIndex();
      setRowIndex(facesContext, eventPathIndex);
      try {
        originalEvent.getComponent().broadcast(originalEvent);
      } finally {
        setRowIndex(facesContext, currentPathIndex);

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    }
  }


  public boolean invokeOnComponent(FacesContext facesContext, String clientId, ContextCallback callback)
      throws FacesException {
    TreePath oldRowIndex = getRowIndex();
    try {
      String sheetId = getClientId(facesContext);
      if (clientId.startsWith(sheetId)) {
        String idRemainder = clientId.substring(sheetId.length());
        if (LOG.isDebugEnabled()) {
          LOG.debug("idRemainder = '" + idRemainder + "'");
        }
        if (idRemainder.matches("^:(_\\d+)+:.*")) {
          idRemainder = idRemainder.substring(1);
          int idx = idRemainder.indexOf(":");
          try {
            TreePath rowIndex = new TreePath(idRemainder.substring(0, idx));
            if (LOG.isDebugEnabled()) {
              LOG.debug("set rowIndex = '" + rowIndex + "'");
            }
            setRowIndex(facesContext, rowIndex);
          } catch (NumberFormatException e) {

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    }
  }


  protected String gotoNode(Node node) {
    currentNode = node;
    state.getExpandedState().expand(new TreePath(node));
    LOG.info("Navigate to '" + currentNode.getOutcome() + "'");
    return currentNode.getOutcome();
  }

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