This commit introduces a TransactionBeanRegistrationAotProcessor
in charge of creating the required proxy and reflection hints
when @Transactional is detected on beans.
It also refines DefaultAopProxyFactory to throw an exception
when a subclass-based proxy is created in native images
since that's unsupported for now (see gh-28115 related issue).
Closes gh-28717
Prior to this commit, there was no way to configure type-safe rollback
rules for transactions.
Even though a rollback rule could be defined using a Class reference
via the `rollbackFor` and `noRollbackFor` attributes in @Transactional,
those Class references got converted to Strings (as the fully qualified
class names of the exception types) in RollbackRuleAttribute which then
applied a pattern-based matching algorithm as if the Class references
had been supplied as Strings/patterns to begin with, thereby losing the
type information.
Pattern-based rollback rules suffer from the following three categories
of unintentional matches.
- identically named exceptions in different packages when the pattern
does not include the package name -- for example,
example.client.WebException and example.server.WebException both
match against a "WebException" pattern.
- similarly named exceptions in the same package when a given exception
name starts with the name of another exception -- for example,
example.BusinessException and example.BusinessExceptionWithDetails
both match against an "example.BusinessException" pattern.
- nested exceptions when an exception type is declared in another
exception -- for example, example.BusinessException and
example.BusinessException$NestedException both match against an
"example.BusinessException" pattern.
This commit prevents the latter two categories of unintentional matches
for rollback rules defined using a Class reference by storing the
exceptionType in RollbackRuleAttribute and using that type in the
implementation of RollbackRuleAttribute.getDepth(Class, int), resulting
in type-safe rollback rules whenever the `rollbackFor` and
`noRollbackFor` attributes in `@Transactional` are used.
Note that the first category of unintentional matches never applied to
rollback rules created from a Class reference since the fully qualified
name of a Class reference always includes the package name.
Closes gh-28098
Includes forPayload methods and common adapter classes for programmatic usage.
Aligns default order values for event handling delegates to LOWEST_PRECEDENCE.
Closes gh-24163
This commit introduces a change in reactive transaction semantics for
cancel signals. Canceling a subscription now rolls back a reactive transaction
to achieve a deterministic transaction outcome.
Previously, cancel signals committed a transaction which could
cause partially committed transactions depending on when the cancel happened.
This commit picks up where 613bd3be1d
left off by ensuring that a transaction manager configured via the
TransactionManagementConfigurer API takes precedence over any
transaction manager configured as a bean in the ApplicationContext
unless @Transactional is configured with a qualifier for the explicit
transaction manager to use in tests.
Closes gh-24869
TransactionAttribute now exposes a labels attribute that associates a
descriptive array of labels with a transaction.
Labels may be of a pure descriptive nature or may get evaluated by
transaction managers to associate technology-specific behavior
with the actual transaction.
This commit introduces tests for the status quo in production support
for multiple transaction managers registered as @Primary and via the
TransactionManagementConfigurer API.
See gh-24869
TransactionOperator.as(Mono) now no longer short-cuts via a Flux.next() but provides an implementation via Mono.usingWhen(…).
The short-cut previously issued a cancellation signal to the transactional Mono causing the transaction cleanup to happen without a handle for synchronization.
Using Mono.usingWhen(…) initiates transaction cleanup when the Mono completes eliminating the need for cancellation of the transactional Publisher.
This change does not fully fix gh-23304 but it softens its impact because TransactionalOperator.transactional(Mono) avoids cancellation.
This commit fixes the behaviour of not triggering a transactional event
listener if no transaction is active. Previously, a transaction boundary
was all that was necessary to trigger the listener regardless of the fact
there was an active transaction.
This commit now prevents `Propagation.NOT_SUPPORTED` and
`Propagation.SUPPORTS` without an active transaction to trigger the
listener.
Closes gh-23276
