Type Parameters:

T - the event type

All Superinterfaces:

Prioritized
```
public interface ObserverMethod<T>
extends Prioritized
```
Represents an observer method of an enabled bean. Defines everything the container needs to know about an observer method.

If a custom implementation of this interface does not override either notify(Object) or notify(EventContext), the container automatically detects the problem and treats it as a definition error.

Author:

Gavin King, David Allen, Mark Paluch, Antoine Sabot-Durand

Field Summary

Fields
Modifier and Type Field Description

static int DEFAULT_PRIORITY

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`Class<?>`	`getBeanClass()`	Obtains the class of the type that declares the observer method.
`default Bean<?>`	`getDeclaringBean()`	Obtains the bean that declares the observer method.
`Set<Annotation>`	`getObservedQualifiers()`	Obtains the set of observed event qualifiers.
`Type`	`getObservedType()`	Obtains the observed event type.
`default int`	`getPriority()`	The priority that will be used by the container to determine the notification order in which event observer methods are invoked.
`Reception`	`getReception()`	Obtains the specified `Reception` for the observer method.
`TransactionPhase`	`getTransactionPhase()`	Obtains the specified `TransactionPhase` for the observer method.
`default boolean`	`isAsync()`	Determines if this observer method is asynchronous
`default void`	`notify(EventContext<T> eventContext)`	Calls the observer method, passing the given event context.
`default void`	`notify(T event)`	Calls the observer method, passing the given event object.

- Field Detail
  - DEFAULT_PRIORITY
```
static final int DEFAULT_PRIORITY
```
    See Also:
    
    Constant Field Values
- Method Detail
  - getBeanClass
```
Class<?> getBeanClass()
```
    Obtains the class of the type that declares the observer method.
    
    Returns:
    
    the defining class
  - getDeclaringBean
```
default Bean<?> getDeclaringBean()
```
    Obtains the bean that declares the observer method. For synthetic observers, the return value is undefined.
    
    For the sake of compatibility with existing custom ObserverMethod implementations, this method by default returns null.
    
    Returns:
    
    the declaring bean
  - getObservedType
```
Type getObservedType()
```
    Obtains the observed event type.
    
    Returns:
    
    the observed event type
  - getObservedQualifiers
```
Set<Annotation> getObservedQualifiers()
```
    Obtains the set of observed event qualifiers.
    
    Returns:
    
    the observed event qualifiers
  - getReception
```
Reception getReception()
```
    Obtains the specified Reception for the observer method. This indicates if the observer is conditional or not.
    
    Returns:
    
    the Reception
  - getTransactionPhase
```
TransactionPhase getTransactionPhase()
```
    Obtains the specified TransactionPhase for the observer method.
    
    Returns:
    
    the TransactionPhase
  - getPriority
```
default int getPriority()
```
    The priority that will be used by the container to determine the notification order in which event observer methods are invoked.
    
    Specified by:
    
    getPriority in interface Prioritized
    
    Returns:
    
    The priority that will be used by the container to determine the notification order in which event observer methods are invoked.
    
    Since:
    
    2.0
  - notify
```
default void notify(T event)
```
    Calls the observer method, passing the given event object.
    
    The implementation of this method for a custom observer method is responsible for deciding whether to call the method if the getReception() returns Reception.IF_EXISTS.
    
    Parameters:
    
    event - the event object
  - notify
```
default void notify(EventContext<T> eventContext)
```
    Calls the observer method, passing the given event context.
    The container should always call this method, but the default implementation delegates to notify(Object).
    The implementation of this method for a custom observer method is responsible for deciding whether to call the method if the getReception() returns Reception.IF_EXISTS.
    
    Parameters:
    
    eventContext - EventContext used to notify observers
  - isAsync
```
default boolean isAsync()
```
    Determines if this observer method is asynchronous
    
    Returns:
    
    returns true if the method is an asynchronous observer method (i.e. defined with ObservesAsync), otherwise returns false

Interface ObserverMethod<T>

Field Summary

Method Summary

Field Detail

DEFAULT_PRIORITY

Method Detail

getBeanClass

getDeclaringBean

getObservedType

getObservedQualifiers

getReception

getTransactionPhase

getPriority

notify

notify

isAsync