Spring Batch - Running a particular job in an application with multiple jobs - spring-boot

Question

I have just got into a new project, which is all about migrating COBOL jobs to spring batch.
Before I joined, my colleague started on this migration and created the spring batch application with 1 job. My colleague was/is able to run the spring batch job from the command line just by running the application's jar file.
After I joined, I followed the 1st spring batch job and developed the 2nd spring batch job. But my spring batch job is not running from the command line by running the application's jar file like the 1st spring batch job.
I tried to explicitly launch my job (2nd job) from the commandlinerunner's run method and it worked. (The 1st spring batch job didn't have to do this).
Once the jobs are developed and tested, each job will be run from the Tivoli workload scheduler scheduled at different times.
The command that I used from command line:
java -Dspring.profiles.active=dev -jar target/SPRINGBATCHJOBS-0.0.2-SNAPSHOT.jar job.name=JOB2 dateCode=$$$$
Package structure
App
src
main
java
com.test
BatchApplication.java
common
dao
...
entity
...
service
...
job1
config
...
core
...
dao
...
entity
...
job2
config
...
core
...
dao
...
entity
...
Code Snippet (on a very high-level)
public class BatchApplication {
public static void main(String[] args) {
SpringApplication.run(BatchApplication.class, args);
}
}
public class Job2Config {
public Job JOB2() {
return jobBuilderFactory.get("JOB2")
.preventRestart()
.incrementer(batchJobIncrementer)
.listener(jobExecutionListener())
.flow(job2Step())
.end()
.build();
}
public Step job2Step() {
return stepBuilderFactory.get("job2Step")
.<String, String>chunk(
Integer.parseInt(chunkSize))
.reader(job2ItemReader())
.writer(this.job2ItemWriter)
.faultTolerant()
.skipLimit(Integer.parseInt(this.skipLimit))
.skipPolicy(skipPolicy())
.retryPolicy(new NeverRetryPolicy())
.listener(chunkListener())
.allowStartIfComplete(true)
.build();
}
public JdbcCursorItemReader<String> job2ItemReader() {
return new JdbcCursorItemReaderBuilder<String>()
.dataSource(oracleDataSource)
.name("job2ItemReader")
.sql(this.sqlQuery)
.fetchSize(Integer.parseInt(this.fetchSize))
.rowMapper((resultSet, rowNum) -> resultSet.getString(1))
.build();
}
}
public class Job2CommandLineRunner implements CommandLineRunner {
#Autowired
private JobLauncher jobLauncher;
#Autowired
private Job JOB2;
public void run(String... args) throws Exception {
String jobName = params.get("job.name");
if (jobName != null && jobName.equalsIgnoreCase("JOB2")) {
JobParameters jobParameters =
new JobParametersBuilder()
.addLong("time", System.currentTimeMillis())
.addString("dateCode", params.get("dateCode"))
.toJobParameters();
this.jobLauncher.run(JOB2, jobParameters);
}
}
}
I have couple of questions:
The 2nd spring batch job simply followed the 1st spring batch job for the implementation but I'm not sure why the 2nd spring batch job didn't get invoked
from the command line like the 1st spring batch job. To invoke the 2nd spring batch job, I had to explicitly launch it from the command line runner.
When there're multiple jobs in a Spring Batch application, is invoking a particular job explicitly thru CommandLineRunner the right way of doing it? If it's not, what's the right way of invoking a particular job (of an application with multiple jobs) from command line (eventually the jobs need to be called thru Tivoli workload scheduler)
It will be great if someone can help me clarify my questions.
Thanks in advance.