EventManager (OpenJPA Parent POM 4.0.0 API)

All Known Implementing Classes:

AbstractConcurrentEventManager, AbstractDataCache, AbstractQueryCache, BrokerFactoryEventManager, ConcurrentDataCache, ConcurrentQueryCache, JDBCEventConnectionDecorator, PartitionedDataCache, RemoteCommitEventManager, TransactionEventManager
```
public interface EventManager
```
Basic event manager interface.

Author:

Abe White

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`addListener(java.lang.Object listener)`	Add an event listener.
`java.lang.Exception[]`	`fireEvent(java.lang.Object event)`	Fire the given event to all listeners, returning any exceptions.
`java.util.Collection`	`getListeners()`	Return a read-only list of listeners.
`boolean`	`hasListener(java.lang.Object listener)`	Return whether the given instance is in the list of listeners.
`boolean`	`hasListeners()`	Return true if there are any registered listeners.
`boolean`	`removeListener(java.lang.Object listener)`	Remove an event listener.

- Method Detail
  - addListener
```
void addListener(java.lang.Object listener)
```
    Add an event listener.
  - removeListener
```
boolean removeListener(java.lang.Object listener)
```
    Remove an event listener.
  - hasListener
```
boolean hasListener(java.lang.Object listener)
```
    Return whether the given instance is in the list of listeners.
  - hasListeners
```
boolean hasListeners()
```
    Return true if there are any registered listeners.
  - getListeners
```
java.util.Collection getListeners()
```
    Return a read-only list of listeners.
  - fireEvent
```
java.lang.Exception[] fireEvent(java.lang.Object event)
```
    Fire the given event to all listeners, returning any exceptions.