TreeFilterHeaderModel bears some similarities to FilterHeaderModel. In order to install it to a TreeTable, you should call:

public void attachToTable(TreeTable treetable) OR

public void attachToTable(TreeTable treetable, FilterTreeTableModel ftm);

You can add and remove 'filterable' columns respectively with:

public void setFilterControlInColumn(TableColumn aColumn);

public void removeFilterControlFromColumn(TableColumn aColumn);

By default, all columns are 'filterable'. This can be controlled with:

public void setAutoCreateAllFilters(boolean newAutoCreateAllFilters);

public boolean getAutoCreateAllFilters();

The Filter that will be used to filter the values of a column is retrieved with the method:

public Filter getFilter(int viewIndex);

The method above will call:

public Filter getDefaultFilter(Class columnClass);

You can set the default filters for a Class with:

public void setDefaultFilter(Class columnClass, Filter filter);

By default, Filters for all the common objects (Strings, Dates, Booleans etc) are installed at construction time with:

protected void createDefaultFilters();

The default implementation, PopupTreeFilterHeaderModel, creates a DefaultColumnFilterMapper that allows each column to be associated to either a LevelFilterMapper or a NodeFilterMapper. Therefore, you can have some columns in which the filtered node children are specifically identified and others, which filter tree nodes based on their tree level.

Example: Use a PopupTreeFilterHeaderModel to filter the values of a TreeTableModel. All columns should show every node in the data model, except for the first column.

//create a (unfiltered) treetablemodel:

DefaultMutableTreeTableModel dataModel = new DefaultMutableTreeTableModel();

...fill dataModel with some values and columns

//create the FilterTreeTableModel and the tree-table

DefaultFilterTreeTableModel ftm = new DefaultFilterTreeTableModel(dataModel);

TreeTable treeTable = new TreeTable(ftm);

//create the PopupTreeFilterHeaderModel and install it to the tree-table

PopupTreeFilterHeaderModel popup = new PopupTreeFilterHeaderModel();

popup.setTableHeader((FilterTableHeader) treeTable.getTableHeader());

popup.attachToTable(treeTable);

//get the DefaultColumnFilterMapper instance

DefaultColumnFilterMapper mapper = (DefaultColumnFilterMapper) popup.getFilterMapper();

//change the default mapping mode to NODE

mapper.setDefaultMode(DefaultColumnFilterMapper.NODE_MODE);

//make the first column show filter expressions per level

mapper.setLevel(0);