TransactionalEventListener (Spring Framework 4.3.30.RELEASE API)

```
@Target({METHOD,ANNOTATION_TYPE})
@Retention(RUNTIME)
@Documented
@EventListener
public @interface TransactionalEventListener
```
An EventListener that is invoked according to a TransactionPhase.
If the event is not published within the boundaries of a managed transaction, the event is discarded unless the fallbackExecution() flag is explicitly set. If a transaction is running, the event is processed according to its TransactionPhase.
Adding @Order to your annotated method allows you to prioritize that listener amongst other listeners running before or after transaction completion.
从以下版本开始:
4.2
作者:
Stephane Nicoll, Sam Brannen

可选元素概要

可选元素
修饰符和类型	可选元素	说明
`Class<?>[]`	`classes`	The event classes that this listener handles.
`String`	`condition`	Spring Expression Language (SpEL) attribute used for making the event handling conditional.
`boolean`	`fallbackExecution`	Whether the event should be processed if no transaction is running.
`TransactionPhase`	`phase`	Phase to bind the handling of an event to.
`Class<?>[]`	`value`	Alias for `classes()`.

- 元素详细资料
  - phase
```
TransactionPhase phase
```
    Phase to bind the handling of an event to.
    The default phase is TransactionPhase.AFTER_COMMIT.
    If no transaction is in progress, the event is not processed at all unless fallbackExecution() has been enabled explicitly.
    默认值:
    org.springframework.transaction.event.TransactionPhase.AFTER_COMMIT
- - fallbackExecution
```
boolean fallbackExecution
```
    Whether the event should be processed if no transaction is running.
    默认值:
    false
- - value
```
@AliasFor(annotation=EventListener.class,
          attribute="classes")
Class<?>[] value
```
    Alias for classes().
    默认值:
    {}
- - classes
```
@AliasFor(annotation=EventListener.class,
          attribute="classes")
Class<?>[] classes
```
    The event classes that this listener handles.
    If this attribute is specified with a single value, the annotated method may optionally accept a single parameter. However, if this attribute is specified with multiple values, the annotated method must not declare any parameters.
    默认值:
    {}
- - condition
```
String condition
```
    Spring Expression Language (SpEL) attribute used for making the event handling conditional.
    The default is "", meaning the event is always handled.
    另请参阅:
    EventListener.condition()
    默认值:
    ""