com.sciapp.treetable.db
Interface DatabaseTreeTableModel

All Superinterfaces:

TreeModel, TreeTableModel

All Known Implementing Classes:

AbstractDatabaseTreeTableModel, DefaultDatabaseTreeTableModel

public interface DatabaseTreeTableModel
extends TreeTableModel

DatabaseTreeTableModel defines methods for retrieving data from an underlying database for use with a treetable model.

Field Summary

Fields inherited from interface com.sciapp.treetable.TreeTableModel

CHANGE_COLUMN_SOURCE

Method Summary

List	fetchChildren(Object parent, int from, int to) This method retrieves the data from the database for the children of parent in the range from - to.
int	fetchGroupCount(Object node) This method retrieves the aggregate values for the children of parent in the range from - to, and assigns them on the treeModel.
List	fetchGroups(Object parent, int from, int to) This method retrieves the group values from the database for the children of parent in the range from - to.

Methods inherited from interface com.sciapp.treetable.TreeTableModel

getColumnClass, getColumnCount, getColumnName, getValueAt, isAggregate, isCellEditable, isFooter, isHeader, setValueAt

Methods inherited from interface javax.swing.tree.TreeModel

addTreeModelListener, getChild, getChildCount, getIndexOfChild, getRoot, isLeaf, removeTreeModelListener, valueForPathChanged

Method Detail

fetchChildren

List fetchChildren(Object parent,
                   int from,
                   int to)

This method retrieves the data from the database for the children of parent in the range from - to. The following condition must be true: from >= to. The List returned must contain the row elements starting at from. However, the List may contain less elements than those specified in the range.

Parameters:

parent - the parent node

from - the index of the first child

to - the index of the last child

Returns:

the retrieved group values as a List.

fetchGroupCount

int fetchGroupCount(Object node)

This method retrieves the aggregate values for the children of parent in the range from - to, and assigns them on the treeModel.

Parameters:

node - the node to consider

Returns:

the group count for node

fetchGroups

List fetchGroups(Object parent,
                 int from,
                 int to)

This method retrieves the group values from the database for the children of parent in the range from - to. The following condition must be true: from >= to. The List returned must contain the row elements starting at from. However, the List may contain less elements than those specified in the range.

Parameters:

parent - the parent node

from - the index of the first child

to - the index of the last child

Returns:

the retrieved childrend of parent as a List.