CODEWITHSUNDEEP
javaspringspring-bootspring-batch
Varun Achar
Varun Achar

Reputation: 15109

Initialize Spring batch DB before application bean is created

I'm trying to create a bean like so:

@Bean
public Clock clock(JobExplorer explorer, Environment environment) {
   // Check last run time of job and create a Clock bean
}

But when the application starts up, I get the error: ORA-00942: table or view does not exist because the spring batch schema hasn't been created by spring boot's BatchAutoConfiguration yet.

Then, I tried to do this:

 @Bean
 @ConditionOnBean(BatchDatabaseInitializer.class)
 public Clock clock(JobExplorer explorer, Environment environment) {
   // Check last run time of job and create a Clock bean
 }

This shifted the error from when clock bean was created to when a bean requiring Clock was created:

@Bean(name = "reader")
public ItemReader<Record> itemReader(
              JdbcTemplate jdbcTemplate, Clock clock) {
     // Create item reader
}

Error: No qualifying bean of type [java.time.Clock] found for dependency

This keeps cascading. If I put a @ConditionalOnBean on itemReader method, then when a bean that requires itemReader is created, I get the same "No qualifying bean" error.

So, How do I make sure that spring batch schema is initialized before my beans are created?

Upvotes: 0

Views: 732

Answers (1)

rocky
rocky

Reputation: 5004

have you tried to use @DependsOn() annotation? I was not aware of ConditionOnBean..

Upvotes: 1

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