java - How to copy a field in one record to another record using BeanIO -

am trying access data "accountnumber" field in record2 "property". file format flat file (format="fixedlength"). please me on this.

<beanio xmlns="http://www.beanio.org/2012/03">     <stream name="definitions" format="fixedlength">         <record name="header" order="1" minoccurs="1" maxoccurs="1" class="map">             <field name="recordtype"  literal="hd" position="0" length="2" rid="true"/>         </record>         <group name="sample" order="2" minoccurs="0" maxoccurs="unbounded" class="map">                 <record name="record1" order="1" minoccurs="1" maxoccurs="1"  class="map">                     <field name="type" rid="true" literal="pp" position="0" length="2"/>                     <field name="accountnumber" position="2" length="30"/>                 </record>                 <record name="record2" order="2" minoccurs="0" maxoccurs="unbounded" class="map" collection="list" >                     <field name="type" rid="true" literal="ff" position="0" length="2"/>             < ******------ want access "accountnumber" here ------****** />                 </record>         </group>         <record name="trailer" order="3" >             <field name="recordtype" rid="true" literal="tt" position="0" length="2"/>         </record>       </stream> </beanio> 

sample data:

hd                                  ppxxxxxxxxxxxxxxxxxxxxxxxxxxx    ff                                     ff                                     ppyyyyyyyyyyyyyyyyyyyyyyyyyyy                   ff                                     ff                                     tt 

i think have combination after reading records. possible because information record1 exist in map sample group. have iterate on each record2 , set information record1.

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i haven't implemented yet, soon, , here strategy using spring-batch:

• i don't group records.
• create different classes 2 records.
• set batch job bean-io itemreader.
• add classifiercompositeitemprocessor job subclassclassifier.
  • the type map maps 2 records' classes specific itemprocessors,
  • the record1 itemprocessor add information in record step's executioncontext , return null avoid itemwriter being called.
• add itemwriter job read executioncontext , write combination of record1 each record2.

i hope helps.