Bug 127861 [DataBinding] Mark API provisional
examples/org.eclipse.jface.examples.databinding/src/org/eclipse/jface/layout/GridDataFactory.java
data.horizontalAlignment = SWT.FILL;
        data.verticalAlignment = SWT.FILL;
        
    	return new GridDataFactory(data);
    }
    /**
     * Sets the GridData span. The span controls how many cells
     * are filled by the control. 
     * 
     * @param hSpan number of columns spanned by the control
     * @param vSpan number of rows spanned by the control
     * @return this
     */
    public GridDataFactory span(int hSpan, int vSpan) {
        data.horizontalSpan = hSpan;
        data.verticalSpan = vSpan;
        return this;
    }
    /**
     * Sets the GridData span. The span controls how many cells
     * are filled by the control. 
     * 
     * @param span the new span. The x coordinate indicates the number of
     * columns spanned, and the y coordinate indicates the number of rows.
     * @return this
     */
    public GridDataFactory span(Point span) {
        data.horizontalSpan = span.x;
        data.verticalSpan = span.y;
        return this;