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Updated Spring Batch 5.0 Migration Guide (markdown)

Mahmoud Ben Hassine 2022-10-11 22:07:44 +02:00
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Spring-Batch-5.0-Migration-Guide.md

@ -28,6 +28,7 @@ In addition to that:
* `org.springframework:spring-jdbc` is now a required dependency in `spring-batch-core`
* `junit:junit` is no more a required dependency in `spring-batch-test`.
* `com.fasterxml.jackson.core:jackson-core` is now optional in `spring-batch-core`
## Database schema updates
@ -200,6 +201,12 @@ The same pattern can be used to remove the usage of the deprecated `StepBuilderF
* All tags are now prefixed with the meter name. For example, the tags of the timer `spring.batch.job` are named `name` and `status` in version 4.x. In version 5, those tags are now named `spring.batch.job.name` and `spring.batch.job.status` respectively.
* The `BatchMetrics` class (which is intended for internal use only) has been moved from `org.springframework.batch.core.metrics` to the `org.springframework.batch.core.observability` package.
## Execution context serialization updates
Starting from v5, the default `ExecutionContextSerializer` was changed from `JacksonExecutionContextStringSerializer` to `DefaultExecutionContextSerializer`. The default execution context serializer was updated to serialize/deserialize the context to/from Base64.
The dependency to Jackson was made optional. In order to use the `JacksonExecutionContextStringSerializer`, `jackson-core` should be added to the classpath.
## Job parameters handling updates
### Support for any type as a job parameter