Consistently use Assert.state in the afterPropertiesSet()
methods to throw IllegalStateException instead of
IllegalArgumentException when some properties are missing
and/or invalid.
Resolves#2244
Before this commit, the configuration of infrastructure beans
was confusing and not straightforward to customize. This commit
changes the way Batch infrastructure beans are configured.
The most important changes are:
* EnableBatchProcessing now provides new attributes to
configure properties of infrastructure beans
* Bean registration is now done programmatically with a
BeanDefinitionRegistrar instead of importing a class with
statically annotated bean definition methods
* Bean are now resolved from the application context directly
instead of being resolved from a BatchConfigurer
* Both a data source and a transaction manager are now
required to be defined in the application context
* A new configuration class called DefaultBatchConfiguration
with default infrastructure bean definitions is now provided
and can be extended to customize the default configuration
Resolves#3942
Before this commit, the user had to manually set the job repository and transaction
manager on `JobBuilder` and `StepBuilder` instances with a chained call to
`.repository(jobRepository)` and `.transactionManager(transactionManager)`.
This is error prone and can lead to runtime errors if these properties are not set.
This commit introduces new APIs to guide the user to set these properties at
builder creation time.
Resolves#4192
Before this commit, the transaction manager was configurable
at the StepBuilder level, which is inconsistent with the XML
config style in addition to be not needed for most step types.
This commit moves the configuration of the transaction manager
from the StepBuilder down to the AbstractTaskletStepBuilder,
which is the level where the transaction manager is needed.
Resolves#4130
The documentation generation change introduced
in #4167 seems to scan more files than previously
WRT checking the code formatting style.
This commit fixes the formatting of the files
that do not conform to the Spring style.
This commit replaces the usage of List with Chunk
where appropriate. Summary of changes:
- The Chunk class was moved from the `org.springframework.batch.core.step.item` package to the `org.springframework.batch.item` package
- The signature of the method `ItemWriter#write(List)` was changed to `ItemWriter#write(Chunk)`
- All implementations of `ItemWriter` were updated to use the Chunk API instead of List
- All methods in the `ItemWriteListener` interface were updated to use the Chunk API instead of List
- All implementations of `ItemWriteListener` were updated to use the Chunk API instead of List
- The constructor of `ChunkRequest` was changed to accept a Chunk instead of a Collection of items
- The return type of `ChunkRequest#getItems()` was changed from List to Chunk
Resolves#3954
