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Update documentation for 5.0.0-M8 release

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Mahmoud Ben Hassine
2022-10-13 11:50:41 +02:00
parent bd9d0d90d6
commit dd823fa474
1 changed files with 25 additions and 0 deletions
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spring-batch-docs/src/main/asciidoc/whatsnew.adoc
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@@ -16,6 +16,8 @@ Spring Batch 5.0 has the following major themes:
* Batch infrastructure configuration updates
* Batch testing configuration updates
* Job parameters handling updates
* Execution context serialization updates
* SystemCommandTasklet updates
* New features
* Pruning
@@ -207,6 +209,29 @@ parameterName='{"value": "parameterValue", "type":"parameterType", "identifying"
where `parameterType` is the fully qualified name of the type of the parameter. Spring Batch provides the
`JsonJobParametersConverter` to support this notation.
[[execution-context-serialization-updates]]
=== Execution context serialization updates
Starting from v5, the `DefaultExecutionContextSerializer` was updated to serialize/deserialize the context to/from Base64.
Moreover, the default `ExecutionContextSerializer` configured by `@EnableBatchProcessing` or `DefaultBatchConfiguration`
was changed from `JacksonExecutionContextStringSerializer` to `DefaultExecutionContextSerializer`. The dependency to
Jackson was made optional. In order to use the `JacksonExecutionContextStringSerializer`, `jackson-core` should be added
to the classpath.
[[system-command-tasklet-updates]]
=== SystemCommandTasklet updates
The `SystemCommandTasklet` has been revisited in this release and was changed as follows:
* A new strategy interface named `CommandRunner` was introduced in order to decouple the command execution
from the tasklet execution. The default implementation is the `JvmCommandRunner` which uses the `java.lang.Runtime#exec`
API to run system commands. This interface can be implemented to use any other API to run system commands.
* The method that runs the command now accepts an array of `String`s representing the command and its arguments.
There is no need anymore to tokenize the command or do any pre-processing. This change makes the API more intuitive,
and less prone to errors.
[[batch-testing-configuration-updates]]
=== Batch Testing Configuration Updates