Claude
b81af72bc3
Companion code for "Spring Batch on Boot 4.1: Jobs, Steps, Chunk Processing and Restartability". A productImportJob configured three ways by profile against a poisoned CSV row, run as real java -jar processes (not just JUnit) so the restart story is genuine: a chunk fails and rolls back, the process exits, a brand-new JVM against the same file-based H2 database resumes at the exact next unread row (READ_COUNT 20, not 60) and completes. Findings the build pins: - StepBuilder.chunk(int, PlatformTransactionManager) still compiles in Batch 6.0.5 but returns the legacy SimpleStepBuilder; chunk(int) returns the new ChunkOrientedStepBuilder, and only the latter is used here. - Two different ExecutionContext classes now exist in two different packages (infrastructure.item vs core.repository.persistence) with different shapes. - spring-boot-starter-batch alone gives a resourceless JobRepository that forgets every JobInstance the moment the JVM exits; spring-boot-starter- batch-jdbc is what makes the restart demo possible at all, demonstrated by excluding BatchJdbcAutoConfiguration and watching a "restart" collide with the previous run's own data instead of resuming it. - A migration-guide summary claiming CommandLineJobRunner was removed in 6.0 is wrong -- javap against the real jar shows @Deprecated(forRemoval=true), not removed. - RepeatStatus moved from core.repeat to infrastructure.repeat, caught by the compiler rather than by reading docs. 11 documentation chapters, 10 captured transcripts (unit tests, javap output, and real two-JVM scenario runs), all regenerated by scripts/run-all.sh. Fixed after push: three dead docs.spring.io links in the doc chapters (readersAndWriters/* and chunk-oriented-processing/*.html paths moved when Spring Batch 6 reorganized its reference docs; corrected to the current readers-and-writers/*, processor.html and chunk-oriented-processing.html paths, verified 200 via curl before committing). Co-Authored-By: Claude Sonnet 5 <[email protected]> Claude-Session: https://claude.ai/code/session_019DXsJ1zpikbA1MQJN6RqFA
20 lines
2.1 KiB
Plaintext
20 lines
2.1 KiB
Plaintext
# javap org.springframework.batch.core.step.builder.StepBuilder (spring-batch-core 6.0.5)
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$ javap -cp spring-batch-core-6.0.5.jar org.springframework.batch.core.step.builder.StepBuilder
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Compiled from "StepBuilder.java"
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public class org.springframework.batch.core.step.builder.StepBuilder extends org.springframework.batch.core.step.builder.StepBuilderHelper<org.springframework.batch.core.step.builder.StepBuilder> {
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public org.springframework.batch.core.step.builder.StepBuilder(org.springframework.batch.core.repository.JobRepository);
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public org.springframework.batch.core.step.builder.StepBuilder(java.lang.String, org.springframework.batch.core.repository.JobRepository);
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public org.springframework.batch.core.step.builder.TaskletStepBuilder tasklet(org.springframework.batch.core.step.tasklet.Tasklet, org.springframework.transaction.PlatformTransactionManager);
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public org.springframework.batch.core.step.builder.TaskletStepBuilder tasklet(org.springframework.batch.core.step.tasklet.Tasklet);
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public <I, O> org.springframework.batch.core.step.builder.SimpleStepBuilder<I, O> chunk(int, org.springframework.transaction.PlatformTransactionManager);
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public <I, O> org.springframework.batch.core.step.builder.ChunkOrientedStepBuilder<I, O> chunk(int);
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public <I, O> org.springframework.batch.core.step.builder.SimpleStepBuilder<I, O> chunk(org.springframework.batch.infrastructure.repeat.CompletionPolicy, org.springframework.transaction.PlatformTransactionManager);
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public org.springframework.batch.core.step.builder.PartitionStepBuilder partitioner(java.lang.String, org.springframework.batch.core.partition.Partitioner);
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public org.springframework.batch.core.step.builder.PartitionStepBuilder partitioner(org.springframework.batch.core.step.Step);
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public org.springframework.batch.core.step.builder.JobStepBuilder job(org.springframework.batch.core.job.Job);
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public org.springframework.batch.core.step.builder.FlowStepBuilder flow(org.springframework.batch.core.job.flow.Flow);
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protected org.springframework.batch.core.step.builder.StepBuilder self();
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protected org.springframework.batch.core.step.builder.StepBuilderHelper self();
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}
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