Bug 142462 Cannot create bindings for data set output parameters
Define a JDBC Stored Procedure data set with at least one data set output parameter. Bind this data set to a table. Edit data binding for the table and add a new binding. In the expression builder, under "Available Data Sets", only the columns for the data set are shown as available. The output parameters are not shown. This is a regression against 2.0. This bug makes data set parameters unusable.
UI/org.eclipse.birt.report.designer.core/src/org/eclipse/birt/report/designer/util/DEUtil.java
*            given string value
	 * @return [number][other]
	 */
	public static String[] splitString( String value )
	{
		String[] spt = new String[2];
		if ( value != null )
		{
			for ( int i = value.length( ); i > 0; i-- )
			{
				if ( isValidNumber( value.substring( 0, i ) ) )
				{
					spt[0] = value.substring( 0, i );
					spt[1] = value.substring( i, value.length( ) );
					break;
				}
			}
			if ( spt[0] == null && spt[1] == null )
			{
				spt[1] = value;
			}
		}
		return spt;
	}
	/**
	 * If given value if null, return an empty string, or return itself.
	 * 
	 * @param value
	 *            a String value.
	 * @return non-null value.