'Implement A Spring Batch Progress Bar - Get total row count on Job Execution
I have a batch job which reads from a database using HibernateCursorItemReader, processes the results using a custom processor then commits to another database.
What I would like to show is how many items have been processed against total items to process.
I have tried implementing a custom JobExecutionListener with @beforeJob to get the row count from the first table which can then be compared
against the Job Execution commits periodically.
Is there a better way than using a Job Execution Listener. is it possible to get the total row count for the table on the first read, setting a value on the HibernateCursorItemReader during initialization or something similar?
Job
<batch:job id="SomeLongJob" job-repository="jobRepository" restartable="true">
<batch:listeners>
<batch:listener ref="batchJobExecutionListener" />
</batch:listeners>
<batch:step id="first1">
<tasklet transaction-manager="hibernateTransactionManager">
<chunk reader="hibernateItemReader"
processor="batchCustomProcessor"
writer="hibernateItemWriter"
skip-limit="0"
commit-interval="10">
</chunk>
</tasklet>
</batch:step>
</batch:job>
Reader
<bean id="hibernateItemReader"
class="org.springframework.batch.item.database.HibernateCursorItemReader">
<property name="queryString" value="from MyTable" />
<property name="sessionFactory" ref="sessionFactory" />
</bean>
Sources
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Source: Stack Overflow
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