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TreeTableRows |
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DynamicTreeTableModel nodes consist of instances of the abstract class TreeTableRow, which extends DefaultMutableTreeNode. They are divided in:
| 1. | DataRows: nodes that are associated with the actual data of the underlying ListTableModel. The association is made through the modelIndex attribute.These nodes cannot have children. |
| 2. | AggregateRows: nodes that are not associated with the data of the underlying ListTableModel, but that may provide information about several rows of the table. These are further classifed into: |
| • | HeaderRows: branch nodes that have children and that can be expanded. HeaderRows usually contain information about their children. |
| • | FooterRows: nodes placed at the bottom of each tree level. FooterRows usually contain information about the rows above them. They are added to the tree as long as a Footer is defined in the DynamicTreeTableModel. |
A TreeTableRow is constructed by specifying the data row object and the index that corresponds to that object in the data list of the underlying ListTableModel:
public TreeTableRow(Object o, int modelIndex);
TreeTableRow also has methods that determine its type:
public boolean isAggregate();
public boolean isHeader();
public boolean isFooter();
Finally, there are methods for getting and setting the aggregate values:
public Object getAggregateValue(int rowIndex, int columnIndex);
public void setAggregateValue(Object value, int rowIndex, int columnIndex);