IChoice choice = choiceSet.findChoice( value );
IChoice choice = choiceSetDirection.findChoice( value );
	public String getText( Object element, String key )	{		if ( !( element instanceof StructureHandle ) )			return "";//$NON-NLS-1$		String value = ( (StructureHandle) element ).getMember( key )				.getStringValue( );		if ( value == null )			value = "";//$NON-NLS-1$		if ( key.equals( SortKey.DIRECTION_MEMBER ) )		{			IChoice choice = choiceSet.findChoice( value );			if ( choice != null )				return choice.getDisplayName( );		}		else			return value;		return "";//$NON-NLS-1$	}