Keeping tree expanded after setting a new model for JTree

I want to replace a Jtree with a new model and then expand a certain row on the tree. How is this done? Otherwise how do I get the TreeNode of a particular row I want to expand so that when I replace the old model with the new one I could have the tree opened to the same node as before.
Mind you the models exchanged are similar but different by one node change (delete or add of something). I can't seem to use tree.expandRow(#). It doesn't work - doesn't expand.
Everytime I replace the old model with a new one I have to do a reload on the DefaultTreeModel to get the new data able to show on the Jtree. But, Now, I want this and then an expansion to the old state.
Please help.
Thanks in advance.
Code:
// in JTree
public void updateModelForAdd(DefaultTreeModel new_model) {
setModel(new_model);
new_model.reload();

Maybe you should just try to add the new node to (or remove it from) the old model, without replacing your model.
Or you have to keep track of the tree status and then apply it to the new model (correcting it with the change).
Bye Massimo

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/** The <code>Vector</code> of column identifiers. */
protected Vector columnIdentifiers;
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this(0, 0);
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v.setSize(size);
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// constructor for TableModel only
public MyTreeTableModel(int rowCount, int columnCount) {
this(newVector(columnCount), rowCount);
// constructor for TableModel only
public MyTreeTableModel(Vector columnNames, int rowCount) {
super(null);
setDataVector(newVector(rowCount), columnNames);
// constructor for TableModel only
public MyTreeTableModel(Object[] columnNames, int rowCount) {
this(convertToVector(columnNames), rowCount);
// constructor for TableModel only
public MyTreeTableModel(Vector data, Vector columnNames) {
super(null);
setDataVector(data, columnNames);
// constructor for TableModel only
public MyTreeTableModel(Object[][] data, Object[] columnNames) {
super(null);
setDataVector(data, columnNames);
* Returns a default name for the column using spreadsheet conventions:
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* returns an empty string.
* @param column the column being queried
* @return a string containing the default name of <code>column</code>
private String getDefaultColumnName(int column) {
String result = "";
for (; column >= 0; column = column / 26 - 1) {
result = (char)((char)(column%26)+'A') + result;
return result;
* Returns a column given its name.
* Implementation is naive so this should be overridden if
* this method is to be called often. This method is not
* in the <code>TableModel</code> interface and is not used by the
* <code>JTable</code>.
* @param columnName string containing name of column to be located
* @return the column with <code>columnName</code>, or -1 if not found
public int findColumn(String columnName) {
for (int i = 0; i < getColumnCount(); i++) {
if (columnName.equals(getColumnName(i))) {
return i;
return -1;
* Returns <code>Object.class</code> regardless of <code>columnIndex</code>.
* @param columnIndex the column being queried
* @return the Object.class
public Class getColumnClass(int columnIndex) {
return Object.class;
// Managing Listeners
* Adds a listener to the list that's notified each time a change
* to the data model occurs.
* @param l the TableModelListener
public void addTableModelListener(TableModelListener l) {
listenerList.add(TableModelListener.class, l);
* Removes a listener from the list that's notified each time a
* change to the data model occurs.
* @param l the TableModelListener
public void removeTableModelListener(TableModelListener l) {
listenerList.remove(TableModelListener.class, l);
* Returns an array of all the table model listeners
* registered on this model.
* @return all of this model's <code>TableModelListener</code>s
* or an empty
* array if no table model listeners are currently registered
public TableModelListener[] getTableModelListeners() {
return (TableModelListener[])listenerList.getListeners(
TableModelListener.class);
// Fire methods
* Notifies all listeners that all cell values in the table's
* rows may have changed. The number of rows may also have changed
* and the <code>JTable</code> should redraw the
* table from scratch. The structure of the table (as in the order of the
* columns) is assumed to be the same.
public void fireTableDataChanged() {
fireTableChanged(new TableModelEvent(this));
* Notifies all listeners that the table's structure has changed.
* The number of columns in the table, and the names and types of
* the new columns may be different from the previous state.
* If the <code>JTable</code> receives this event and its
* <code>autoCreateColumnsFromModel</code>
* flag is set it discards any table columns that it had and reallocates
* default columns in the order they appear in the model. This is the
* same as calling <code>setModel(TableModel)</code> on the
* <code>JTable</code>.
public void fireTableStructureChanged() {
fireTableChanged(new TableModelEvent(this, TableModelEvent.HEADER_ROW));
* Notifies all listeners that rows in the range
* <code>[firstRow, lastRow]</code>, inclusive, have been inserted.
* @param firstRow the first row
* @param lastRow the last row
public void fireTableRowsInserted(int firstRow, int lastRow) {
fireTableChanged(new TableModelEvent(this, firstRow, lastRow,
TableModelEvent.ALL_COLUMNS, TableModelEvent.INSERT));
* Notifies all listeners that rows in the range
* <code>[firstRow, lastRow]</code>, inclusive, have been updated.
* @param firstRow the first row
* @param lastRow the last row
public void fireTableRowsUpdated(int firstRow, int lastRow) {
fireTableChanged(new TableModelEvent(this, firstRow, lastRow,
TableModelEvent.ALL_COLUMNS, TableModelEvent.UPDATE));
* Notifies all listeners that rows in the range
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* @param firstRow the first row
* @param lastRow the last row
public void fireTableRowsDeleted(int firstRow, int lastRow) {
fireTableChanged(new TableModelEvent(this, firstRow, lastRow,
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* @param column column of cell which has been updated
public void fireTableCellUpdated(int row, int column) {
fireTableChanged(new TableModelEvent(this, row, row, column));
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* @param e the event to be forwarded
public void fireTableChanged(TableModelEvent e) {
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// Process the listeners last to first, notifying
// those that are interested in this event
for (int i = listeners.length-2; i>=0; i-=2) {
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((TableModelListener)listeners[i+1]).tableChanged(e);
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* as <code>FooListener</code>s
* upon this <code>AbstractTableModel</code>.
* <code>FooListener</code>s are registered using the
* <code>addFooListener</code> method.
* 
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* with a class literal,
* such as
* <code>FooListener.class</code>.
* For example, you can query a
* model <code>m</code>
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* <pre>TableModelListener[] tmls = (TableModelListener[])(m.getListeners(TableModelListener.class));</pre>
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* @param listenerType the type of listeners requested; this parameter
* should specify an interface that descends from
* <code>java.util.EventListener</code>
* @return an array of all objects registered as
* <code>FooListener</code>s on this component,
* or an empty array if no such
* listeners have been added
* @exception ClassCastException if <code>listenerType</code>
* doesn't specify a class or interface that implements
* <code>java.util.EventListener</code>
public EventListener[] getListeners(Class listenerType) {
return listenerList.getListeners(listenerType);
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* that contains the table's
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* each a single row of values. In other words, to get to the cell
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* @return the vector of vectors containing the tables data values
public Vector getDataVector() {
return dataVector;
private static Vector nonNullVector(Vector v) {
return (v != null) ? v : new Vector();
* Replaces the current <code>dataVector</code> instance variable
* with the new Vector of rows, <code>dataVector</code>.
* <code>columnIdentifiers</code> are the names of the new
* columns. The first name in <code>columnIdentifiers</code> is
* mapped to column 0 in <code>dataVector</code>. Each row in
* <code>dataVector</code> is adjusted to match the number of
* columns in <code>columnIdentifiers</code>
* either by truncating the <code>Vector</code> if it is too long,
* or adding <code>null</code> values if it is too short.
* Note that passing in a <code>null</code> value for
* <code>dataVector</code> results in unspecified behavior,
* an possibly an exception.
* @param dataVector the new data vector
* @param columnIdentifiers the names of the columns
public void setDataVector(Vector dataVector, Vector columnIdentifiers) {
this.dataVector = nonNullVector(dataVector);
this.columnIdentifiers = nonNullVector(columnIdentifiers);
justifyRows(0, getRowCount());
fireTableStructureChanged();
* Replaces the value in the <code>dataVector</code> instance
* variable with the values in the array <code>dataVector</code>.
* The first index in the <code>Object[][]</code>
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* <code>columnIdentifiers</code> are the names of the new columns.
* @param dataVector the new data vector
* @param columnIdentifiers the names of the columns
public void setDataVector(Object[][] dataVector, Object[] columnIdentifiers) {
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* Equivalent to <code>fireTableChanged</code>.
* @param event the change event
public void newDataAvailable(TableModelEvent event) {
fireTableChanged(event);
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private void justifyRows(int from, int to) {
// Sometimes the MyTreeTableModel is subclassed
// instead of the AbstractTableModel by mistake.
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// is overridden.
dataVector.setSize(getRowCount());
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dataVector.setElementAt(new Vector(), i);
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* This method also sends out a <code>tableChanged</code>
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justifyRows(e.getFirstRow(), e.getLastRow() + 1);
fireTableChanged(e);
* Equivalent to <code>fireTableChanged</code>.
* @param event the change event
public void rowsRemoved(TableModelEvent event) {
fireTableChanged(event);
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* than the current size, new rows are added to the end of the model
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int old = getRowCount();
if (old == rowCount) {
return;
dataVector.setSize(rowCount);
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fireTableRowsDeleted(rowCount, old-1);
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justifyRows(old, rowCount);
fireTableRowsInserted(old, rowCount-1);
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dataVector.insertElementAt(rowData, row);
justifyRows(row, row+1);
fireTableRowsInserted(row, row);
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private static int gcd(int i, int j) {
return (j == 0) ? i : gcd(j, i%j);
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int size = b - a;
int r = size - shift;
int g = gcd(size, r);
for(int i = 0; i < g; i++) {
int to = i;
Object tmp = v.elementAt(a + to);
for(int from = (to + r) % size; from != i; from = (to + r) % size) {
v.setElementAt(v.elementAt(a + from), a + to);
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v.setElementAt(tmp, a + to);
* Moves one or more rows from the inlcusive range <code>start</code> to
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* After the move, the row that was at index <code>start</code>
* will be at index <code>to</code>.
* This method will send a <code>tableChanged</code> notification
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* <pre>
* Examples of moves:
* 
* 1. moveRow(1,3,5);
* a|B|C|D|e|f|g|h|i|j|k - before
* a|e|f|g|h|B|C|D|i|j|k - after
* 
* 2. moveRow(6,7,1);
* a|b|c|d|e|f|G|H|i|j|k - before
* a|G|H|b|c|d|e|f|i|j|k - after
* 
* </pre>
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* @param end the ending row index to be moved
* @param to the destination of the rows to be moved
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int shift = to - start;
int first, last;
if (shift < 0) {
first = to;
last = end;
else {
first = start;
last = to + end - start;
rotate(dataVector, first, last + 1, shift);
fireTableRowsUpdated(first, last);
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* @exception ArrayIndexOutOfBoundsException if the row was invalid
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dataVector.removeElementAt(row);
fireTableRowsDeleted(row, row);
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* If the number of <code>newIdentifier</code>s is less than the current
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setDataVector(dataVector, columnIdentifiers);
* Replaces the column identifiers in the model. If the number of
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* of columns, new columns are added to the end of each row in the model.
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for(int i = 0; i < columnSize; i++) {
Vector row = (Vector)dataVector.elementAt(i);
row.setElementAt(columnData.elementAt(i), newColumn);
else {
justifyRows(0, getRowCount());
fireTableStructureChanged();
* Adds a column to the model. The new column will have the
* identifier <code>columnName</code>. <code>columnData</code> is the
* optional array of data for the column. If it is <code>null</code>
* the column is filled with <code>null</code> values. Otherwise,
* the new data will be added to model starting with the first
* element going to row 0, etc. This method will send a
* <code>tableChanged</code> notification message to all the listeners.
public void addColumn(Object columnName, Object[] columnData) {
addColumn(columnName, convertToVector(columnData));
// Implementing the TableModel interface
* Returns the number of rows in this data table.
* @return the number of rows in the model
public int getRowCount() {
return dataVector.size();
* Returns the number of columns in this data table.
* @return the number of columns in the model
public int getColumnCount() {
return columnIdentifiers.size();
* Returns the column name.
* @return a name for this column using the string value of the
* appropriate member in <code>columnIdentifiers</code>.
* If <code>columnIdentifiers</code> does not have an entry
* for this index, returns the default
* name provided by the superclass
public String getColumnName(int column) {
Object id = null;
// This test is to cover the case when
// getColumnCount has been subclassed by mistake ...
if (column < columnIdentifiers.size()) {
id = columnIdentifiers.elementAt(column);
return (id == null) ? getDefaultColumnName(column)
: id.toString();
* Returns true regardless of parameter values.
* @param row the row whose value is to be queried
* @param column the column whose value is to be queried
* @return true
public boolean isCellEditable(int row, int column) {
return true;
* Returns an attribute value for the cell at <code>row</code>
* and <code>column</code>.
* @param row the row whose value is to be queried
* @param column the column whose value is to be queried
* @return the value Object at the specified cell
* @exception ArrayIndexOutOfBoundsException if an invalid row or
* column was given
public Object getValueAt(int row, int column) {
Vector rowVector = (Vector)dataVector.elementAt(row);
return rowVector.elementAt(column);
* Sets the object value for the cell at <code>column</code> and
* <code>row</code>. <code>aValue</code> is the new value. This method
* will generate a <code>tableChanged</code> notification.
* @param aValue the new value; this can be null
* @param row the row whose value is to be changed
* @param column the column whose value is to be changed
* @exception ArrayIndexOutOfBoundsException if an invalid row or
* column was given
public void setValueAt(Object aValue, int row, int column) {
Vector rowVector = (Vector)dataVector.elementAt(row);
rowVector.setElementAt(aValue, column);
fireTableCellUpdated(row, column);
// Protected Methods
* Returns a vector that contains the same objects as the array.
* @param anArray the array to be converted
* @return the new vector; if <code>anArray</code> is <code>null</code>,
* returns <code>null</code>
protected static Vector convertToVector(Object[] anArray) {
if (anArray == null) {
return null;
Vector v = new Vector(anArray.length);
for (int i=0; i < anArray.length; i++) {
v.addElement(anArray[i]);
return v;
* Returns a vector of vectors that contains the same objects as the array.
* @param anArray the double array to be converted
* @return the new vector of vectors; if <code>anArray</code> is
* <code>null</code>, returns <code>null</code>
protected static Vector convertToVector(Object[][] anArray) {
if (anArray == null) {
return null;
Vector v = new Vector(anArray.length);
for (int i=0; i < anArray.length; i++) {
v.addElement(convertToVector(anArray[i]));
return v;

TS2621 Home mail system cannot recieve emails after setting up new iphone?

I just set up the email on my new iphone....but after doing so...I'm no longer able to recieve emails on my home MAC?

Take a look at this article, you may need to contact your email provider if you use an email service other then those listed:
HT 4810 iOS: Setting up an email account
If you do need to contact an email provider for the server information, this document specfically states what infomration you need to obtain.

Files Dissapear after Setting Inherit Permission Model

Our workgroup was continually having read only problems working on files that we each had created locally.
After reading this:
When to use Inherit Permissions
Generally, a share point should use the standard permissions model, since it will make new files in the same manner as those created locally on a client volume. Some programs may depend on this, even when storing data files on a network volume.
However, if your use of the server includes the need to share and communally-edit data files such as word processing documents, graphics, or other application program data, use Inherit Permissions on the share point that stores the shared data.
Warning: Inherit Permissions should never be used on a share point that hosts users' home directories.
I created a test share point and changed the permissions to inherit. Success! All documents that we placed on the server at this point were able to be edited and saved by various users.
I applied these same settings to the rest of our server and our most recent project folder vanished!
Our files are in a folder inside the Users folder on the server, is that the reason why we had this problem? Should our share point be somewhere else on the server?
Any help would be appreciated.
xServe G5 2.0 GHz Mac OS X (10.3.9)

Check if you have the Adobe PCD and SLStore folder available under /Library/Application Support/Adobe. Is so, then follow the solutions mentioned unde the below article.
http://helpx.adobe.com/x-productkb/policy-pricing/configuration-error-cs5.html
If you donot see those folders, you might have accidently deleted them. Re-install will be the best option.

Error after setting up new Taskflow

I have copied the existing taskflow in HRMS application "US HRMS PERSON TASKFLOW" and created a new one. Every node in the new taskflow is the same as the old one, only I have added one node in this new taskflow.
However, after assigning this taskflow to a function when I click on that button which points to the new node, I get the below error:
Function not available to this responsibility. Change responsibilities or contact your System Administrator.
Does anyone know the solution for this.

Seeing as your question is a Oracle Enterprise Business Suite (EBS) question, please post it in the [EBS General Discussion|http://forums.oracle.com/forums/forum.jspa?forumID=475] forum where you will have greater success in getting your question answered.
Craig...

Keeping tree expanded after setting a new model for JTree

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