TreeTableModel builds the tree structure dynamically every time the underlying data changes. To get from the "tree-view" to the original data model provided by the underlying ListTableModel, you can use the following method:

public int getDataRow(int rowIndex);

The above method assumes that rowIndex is a DataRow (single). In order to retrieve the indexes for HeaderRows, use:

public int[] getDataRows(int rowIndex);

public int[] getModelIndexesUnderRow(int row, boolean sorted);

public int[] getModelIndexesUnderRow(TreeTableRow row, boolean sorted);

Furthermore, there are methods for examining the nodes of the tree - the TreeTableRows:

public TreeTableRow getTreeRow(int rowIndex);

public int getLevel(int rowIndex);

public boolean isAggregate(int rowIndex);

public boolean isFooter(int rowIndex);

public boolean isHeader(int rowIndex);

Example 1: Find the objects that correspond to a treetable's row selection. (using the user object of the tree node)

//table is the TreeTable model

int[] selectedRows = table.getSelectedRows();

TreeTableModel ttm = (TreeTableModel) table.getModel();

List treeList = ttm.getRows();

for (int i=0;i<selectedRows.length;i++) {

       TreeTableRow treeRow = (TreeTableRow) treeList.get(selectedRows[i]);

       Object objectRow = treeRow.getUserObject();

}

Example 2: Find the objects that correspond to a treetable's row selection. (using the underlying ListTableModel)

//table is the TreeTable model

int[] selectedRows = table.getSelectedRows();

TreeTableModel ttm = (TreeTableModel) table.getModel();

ListTableModel wrappedModel = ttm.getModel();

for (int i=0;i<selectedRows.length;i++) {

       int origIndex = ttm.getDataRow(selectedRows[i]);

       Onject objectRow = wrappedModel.getRows().get(origIndex);

}