LifecycleEventManager (OpenJPA Parent POM 2.4.1 API)

java.lang.Object
- org.apache.openjpa.event.LifecycleEventManager

All Implemented Interfaces:

Serializable, CallbackModes

Direct Known Subclasses:

ValidatingLifecycleEventManager
```
public class LifecycleEventManager
extends Object
implements CallbackModes, Serializable
```
Manager that can be used to track and notify listeners on lifecycle events. This class is optimized for event firing rather than for adding and removing listeners, which are O(n) operations. This class also does not maintain perfect set semantics for listeners; it is possible to wind up having the same listener invoked multiple times for a single event if it is added to this manager multiple times with different classes, or with a base class and its subclass.

Since:

0.3.3

Author:

Steve Kim, Abe White

See Also:
Serialized Form

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`static interface`	`LifecycleEventManager.ListenerAdapter` Interface that facades to other lifecycle listener interfaces can implement to choose which events to respond to based on their delegate.
`static class`	`LifecycleEventManager.ListenerList` Extended list that tracks what event types its elements care about.

Field Summary
- Fields inherited from interface org.apache.openjpa.event.CallbackModes
  CALLBACK_FAIL_FAST, CALLBACK_IGNORE, CALLBACK_LOG, CALLBACK_RETHROW, CALLBACK_ROLLBACK

Constructor Summary

Constructors
Constructor and Description

LifecycleEventManager()

Constructors
Constructor and Description
`LifecycleEventManager()`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addListener(Object listener, Class<?>[] classes)` Register a lifecycle listener for the given classes.
`Exception[]`	`fireEvent(Object source, ClassMetaData meta, int type)` Fire lifecycle event to all registered listeners without an argument.
`Exception[]`	`fireEvent(Object source, Object related, ClassMetaData meta, int type)` Fire lifecycle event to all registered listeners.
`boolean`	`hasAttachListeners(Object source, ClassMetaData meta)` Return whether there are listeners or callbacks for the given source.
`boolean`	`hasClearListeners(Object source, ClassMetaData meta)` Return whether there are listeners or callbacks for the given source.
`boolean`	`hasDeleteListeners(Object source, ClassMetaData meta)` Return whether there are listeners or callbacks for the given source.
`boolean`	`hasDetachListeners(Object source, ClassMetaData meta)` Return whether there are listeners or callbacks for the given source.
`boolean`	`hasDirtyListeners(Object source, ClassMetaData meta)` Return whether there are listeners or callbacks for the given source.
`boolean`	`hasLoadListeners(Object source, ClassMetaData meta)` Return whether there are listeners or callbacks for the given source.
`boolean`	`hasPersistListeners(Object source, ClassMetaData meta)` Return whether there are listeners or callbacks for the given source.
`boolean`	`hasStoreListeners(Object source, ClassMetaData meta)` Return whether there are listeners or callbacks for the given source.
`boolean`	`hasUpdateListeners(Object source, ClassMetaData meta)` Return whether there are listeners or callbacks for the given source.
`boolean`	`isActive(ClassMetaData meta)` Whether this LifeCycleEventManager has had at least one listener or callback registered.
`boolean`	`isFailFast()` Whether to fail after first exception when firing events to listeners.
`void`	`removeListener(Object listener)` Remove the given listener.
`void`	`setFailFast(boolean failFast)` Whether to fail after first exception when firing events to listeners.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail
- LifecycleEventManager
```
public LifecycleEventManager()
```

Method Detail

isActive
```
public boolean isActive(ClassMetaData meta)
```
Whether this LifeCycleEventManager has had at least one listener or callback registered. Used for a quick test when firing events.

Returns:
boolean

isFailFast
```
public boolean isFailFast()
```
Whether to fail after first exception when firing events to listeners.

setFailFast
```
public void setFailFast(boolean failFast)
```
Whether to fail after first exception when firing events to listeners.

addListener
```
public void addListener(Object listener,
               Class<?>[] classes)
```
Register a lifecycle listener for the given classes. If the classes array is null, register for all classes.

removeListener

public void removeListener(Object listener)

Remove the given listener.