best approach for Parallel threaded step in and multi step job spring batch -


i have job configuration this,

job (

   step 1: read db (jdbc item reader + writer)     keep list of items in job execution context       step 2  take items (list) step 1 (from job context)      , execute step 2 in multiple parallel processes

)

here code looks like,

<bean id="webservicereader" class="org.springframework.batch.item.adapter.itemreaderadapter" scope="step">             <property name="targetobject" ref="individualxxxxservice"/>             <property name="targetmethod" value="execute"/>             <property name="arguments">               <list>                     <value type="java.util.list">#{jobexecutioncontext['jdbc_items']}</value>               </list>             </property>         </bean> <batch:job id="identitycpiiborsync" restartable="true">                  <batch:step id="fetchcustomers" next="fetchdatabase">                     <batch:tasklet>                         <batch:chunk reader="dbitemreader"  writer="dbitemwriter" commit-interval="500"/>                     </batch:tasklet>                     <batch:listeners>                         <batch:listener ref="stepscopeexecutionlistener"/>                     </batch:listeners>                 </batch:step>                  <batch:step id="updatews">                     <!-- <batch:tasklet task-executor="taskexecutor" throttle-limit="10"> -->                     <batch:tasklet>                         <batch:chunk reader="webservicereader"  writer="cpiwsitemwriter" commit-interval="10"/>                     </batch:tasklet>                 </batch:step>                  <batch:listeners>                     <batch:listener ref="batchjoblistener" />                 </batch:listeners>              </batch:job>

my question here is,

do have other option other writing partitioner handler second-step, want know if there way other partitioning achieve parallel processing in second step list of items.

kindly suggest if there better way,

try using 1 of task executor implementations supported in spring


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