import org.jdesktop.swingx.treetable.AbstractMutableTreeTableNode; //导入依赖的package包/类
/**
 * @param string
 * @return
 */
private MutableTreeTableNode createLongNode(final String string) {
    AbstractMutableTreeTableNode node = new AbstractMutableTreeTableNode() {
        Object rnd = Math.random();
        @Override
        public int getColumnCount() {
            return 2;
        }

        @Override
        public Object getValueAt(int column) {
            if (column == 0) {
                return string;
            }
            return rnd;
        }
        
    };
    node.setUserObject(string);
    return node;
}
 

import org.jdesktop.swingx.treetable.AbstractMutableTreeTableNode; //导入依赖的package包/类
static private MutableTreeTableNode createRoot() {
    MutableTreeTableNode root = new AbstractMutableTreeTableNode() {
        @Override
        public Object getValueAt(int column) {
            return null;
        }
        @Override
        public int getColumnCount() {
            return 1;
        }
    };
    return root;
}
 

import org.jdesktop.swingx.treetable.AbstractMutableTreeTableNode; //导入依赖的package包/类
/**
     * Returns the given value as Date.
     * 
     * PENDING: abstract into something pluggable (like StringValue 
     *   in ComponentProvider?)
     *   
     * @param value the value to map as Date
     * @return the value as Date or null, if not successful.
     * 
     */
    protected Date getValueAsDate(Object value) {
        if (isEmpty(value)) return null;
        if (value instanceof Date) {
            return (Date) value;
        } 
        if (value instanceof Long) {
            return new Date((Long) value);
        }
        if (value instanceof String) {
            try {
                // JW: why was the parsing synchronized?
//              synchronized (dateFormat) {
//              datePicker.setDate(dateFormat.parse((String) value));
//          }
                return dateFormat.parse((String) value);
            } catch (ParseException e) {
                handleParseException(e);
            }
        }
        if (value instanceof DefaultMutableTreeNode) {
            return getValueAsDate(((DefaultMutableTreeNode) value).getUserObject());
        }
        if (value instanceof AbstractMutableTreeTableNode) {
            return getValueAsDate(((AbstractMutableTreeTableNode) value).getUserObject());
        }
        return null;
    }