Examples of using special variables to access the runtime hierarchy

The TravelDocs application used special variables to access data in the runtime hierarchy. You can also use the ExportXML ruleset.

The @BatchID example and the @ID example describe how to access data in the following sample runtime batch hierarchy XML from the ExportXML ruleset or with special variables.

<B id="20110003.001">
    <V n="TYPE">TravelDocs</V>
    <D id="2011003.001.01">
        <V m="TYPE">Car_Rental</V>
        <P id="TM000001">
    etc.

Use @BatchID to get the current batch ID

xml_SetFileName("@BatchID") returns xml_SetFileName("20110003.001")

Use @ID to get the ID of the current page

xml_NewNode("@ID,Rental_Agreements") returns xml_NewNode("@TM000001,Rental_Agreements") .

Use @P\<field_name> to get the value of a field on the current page

The @P variable retrieves the value of a field on a current page, as shown in this sample runtime page data XML file.

<P id=TM00001>
<F id="Pickup_Date">
    <V n="TYPE">Pickup_Date</V>
    <V n="Position">179,384,543,462</V>
    <V n="STATUS">0</V>
    <C cn="7" cr="200,416,220,430>84</C>       <!-- T -->
    <C cn="10" cr="226,425,240,440>117</C>     <!-- u -->
    <C cn="10" cr="245,425,258,440>101</C>     <!-- e -->
    <C cn="10" cr="260,425,270,440>115</C>     <!-- s -->
    <C cn="10" cr="273,435,278,444>44</C>      <!-- , -->
    <C cn="10" cr="336,419,337,440>32</C>      <!--   -->
    <C cn="10" cr="290,419,306,440>68</C>      <!-- D -->
    <C cn="10" cr="310,425,324,440>101</C>     <!-- e -->
    <C cn="10" cr="325,425,336,440>99</C>      <!-- c -->
    <C cn="10" cr="370,419,371,444>32</C>      <!--   -->
    <C cn="10" cr="349,419,363,440>55</C>      <!-- 7 -->
    <C cn="10" cr="365,435,370,444>44</C>      <!-- , -->
    <C cn="10" cr="445,419,446,440>32</C>      <!--   -->
    <C cn="10" cr="381,419,395,440>50</C>      <!-- 2 -->
    <C cn="10" cr="396,419,411,440>48</C>      <!-- 0 -->
    <C cn="10" cr="415,419,428,440>49</C>      <!-- 1 -->
    <C cn="10" cr="430,419,445,440>48</C>      <!-- 0 -->

Using the sample XML, xml_SetModeValue("Pickup_Date,@P\Pickup_Date") results in xml_SetModeValue("Pickup_Date,Tues, Dec 7, 2010").