xJCL sample for a batch job

The following sample illustrates a batch job, which demonstrates that we can invoke existing session beans from within job steps.

<job name="PostingsSampleEar" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
          <jndi-name>ejb/com/ibm/websphere/samples/PostingsJob</jndi-name>
           <step-scheduling-criteria>
  <scheduling-mode>sequential</scheduling-mode>
 </step-scheduling-criteria>
           <checkpoint-algorithm name="${checkpoint}">
  <classname>com.ibm.wsspi.batch.checkpointalgorithms.${checkpoint}</classname>
  <props>
   <prop name="interval" value="${checkpointInterval}" />
  </props>
 </checkpoint-algorithm>
           <results-algorithms>
  <results-algorithm name="jobsum">
   <classname>com.ibm.wsspi.batch.resultsalgorithms.jobsum</classname>
  </results-algorithm>
 </results-algorithms>
            <substitution-props>
        <prop name="wsbatch.count" value="5" />
        <prop name="checkpoint" value="timebased" />
        <prop name="checkpointInterval" value="15" />
        <prop name="postingsDataStream" value="${was.install.root}${file.separator}temp${file.separator}postings" />
    </substitution-props>
     <job-step name="Step1">
                    <jndi-name>ejb/DataCreationBean</jndi-name>
           <!-- apply checkpoint policy to step1 -->
        <checkpoint-algorithm-ref name="${checkpoint}" />
                    <results-ref name="jobsum"/>
            <batch-data-streams>
   <bds>
                     <logical-name>myoutput</logical-name>
                                      <impl-class>com.ibm.websphere.samples.PostingOutputStream</impl-class>
                     <props>
                          <prop name="FILENAME" value="${postingsDataStream}" />
                         </props>
   </bds>
  </batch-data-streams>
                            <props>
                         <prop name="wsbatch.count" value="${wsbatch.count}" />
  </props>
 </job-step>
 
 <job-step name="Step2">
                                  <step-scheduling condition="OR">
   <returncode-expression step="Step1" operator="eq" value="0" />
            <returncode-expression step="Step1" operator="eq" value="4" />
  </step-scheduling>
                   <jndi-name>ejb/PostingAccountData</jndi-name>
  <checkpoint-algorithm-ref name="${checkpoint}" />
  <results-ref name="jobsum"/>
   <batch-data-streams>
   <bds>
                     <logical-name>myinput</logical-name>
    <impl-class>com.ibm.websphere.samples.PostingStream</impl-class>
                                                  <props>
     <prop name="FILENAME" value="${postingsDataStream}" />
    </props>
    </bds>
  </batch-data-streams>
 </job-step>
          <job-step name="Step3">
       <step-scheduling>
           <returncode-expression step="Step2" operator="eq" value="4" />
       </step-scheduling>
        <jndi-name>ejb/OverdraftAccountPosting</jndi-name>
       <checkpoint-algorithm-ref name="${checkpoint}" />
       <results-ref name="jobsum" />
               <batch-data-streams>
           <bds>
                              <logical-name>dbread</logical-name>
               <impl-class>com.ibm.websphere.samples.OverdraftInputStream</impl-class>
          </bds>
      </batch-data-streams>
   </job-step>   </job>

Related concepts

xJCL elements

XML schema for a batch job