Accessing data from schema when using ftp adapter

Question

Hi all,
Below is an example of the data i receive from my ftp adapter, i read the entire file into my schema:
<Header>
<batch_filler1>*BATCH</batch_filler1>
<batch_number>08110</batch_number>
<batch_date>20090417</batch_date>
<batch_extra>KW1310</batch_extra>
</Header>
-<Detail>
<cost_centre_comment>W1310</cost_centre_comment>
<cost_centre_code_comment>01310</cost_centre_code_comment>
<amount>-3000.00</amount>
<filler1/>
<payment_method>T</payment_method>
<description>TSHWANE MULTI SKILL FEATURE CONTRACTORS</description>
<receipt_number>338516</receipt_number>
<date_comment>20090417</date_comment>
<bill_to_cust_id>11748885</bill_to_cust_id>
<ref_value>999999</ref_value>
<detail_extra/>
*</Detail>*
-<Detail>
<cost_centre_comment>W1310</cost_centre_comment>
<cost_centre_code_comment>01310</cost_centre_code_comment>
<amount>-1870.00</amount>
<filler1/>
<payment_method>T</payment_method>
<description>UNIVERSITY OF SOUTH UNIVERSITY SOOUTH AF</description>
<receipt_number>338517</receipt_number>
<date_comment>20090417</date_comment>
<bill_to_cust_id>10414916</bill_to_cust_id>
<ref_value>048630</ref_value>
<detail_extra/>
*</Detail>*
-<Detail>
<cost_centre_comment>W1310</cost_centre_comment>
<cost_centre_code_comment>01310</cost_centre_code_comment>
<amount>-300.00</amount>
<filler1/>
<payment_method>T</payment_method>
<description>VET & AGRIC CONSULTA RB JACKSON</description>
<receipt_number>338549</receipt_number>
<date_comment>20090417</date_comment>
<bill_to_cust_id>11462639</bill_to_cust_id>
<ref_value>048893</ref_value>
<detail_extra/>
*</Detail>*
-<Trailer>
<cost_centre>W801408014</cost_centre>
<amount>18467.13</amount>
<trailer_extra>GROOTTOTAAL VIR W8014/8014 OP 20090417 BONDEL 08110 08110 20090417</trailer_extra>
</Trailer>
As you can see i have multiple data for Detail, i need to loop through my schema for Detail and take the values and pass it on. How do you reference a particular Detail in bpel ?
An example would be if i want the 2nd Detail amount which is -300.00, do i reference it with a [1] as in arrays ?
Thanks

Answer 1

it depends on what you want to do. Generally waht people do is map to a partner link, e.g. another service. In most situations the same structure is required for the target.
The transform activity is the best way to many multi nodes. You have the choose / if conditions that allow you to test conditions, if they match then you perform the map.
One thing that catches people out is the use of the for-each, if this is not specified only one row is mapped.
http://download-uk.oracle.com/docs/cd/B31017_01/integrate.1013/b28987/phase6.htm#sthref405
cheers
James