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## org.apache.cayenne.reflect
Class LifecycleCallbackRegistry

    java.lang.Object
      org.apache.cayenne.reflect.LifecycleCallbackRegistry

    public class LifecycleCallbackRegistry

extends Object

A registry of lifecycle callbacks for all callback event types. Valid event types are defined in `LifecycleEvent` enum.

Since:
  3.0

Constructor Summary
`LifecycleCallbackRegistry(EntityResolver resolver)` Creates an empty callback registry.

Method Summary
`void` | `addDefaultListener(LifecycleEvent type, Object listener, String methodName)` Registers a callback method to be invoked on a provided non-entity object when a lifecycle event occurs on any entity that does not suppress default callbacks.
`void` | `addDefaultListener(LifecycleListener listener)` Registers a `LifecycleListener` for all events on all entities.
`void` | `addListener(Class<?> entityClass, LifecycleListener listener)` Registers a `LifecycleListener` for all events on all entities.
`void` | `addListener(LifecycleEvent type, Class<?> entityClass, Object listener, String methodName)` Registers callback method to be invoked on a provided non-entity object when a lifecycle event occurs for a specific entity.
`void` | `addListener(LifecycleEvent type, Class<?> entityClass, String methodName)` Registers a callback method to be invoked on an entity class instances when a lifecycle event occurs.
`void` | `addListener(Object listener)` Adds a listener, mapping its methods to events based on annotations.
`void` | `clear()` Removes all listeners for all event types.
`void` | `clear(int type)` Removes listeners for a single event type.
`boolean` | `isEmpty(LifecycleEvent type)` Returns true if there are no listeners for a specific event type.
`void` | `performCallbacks(LifecycleEvent type, Collection<?> objects)` Invokes callbacks of a specific type for a collection of entity objects.
`void` | `performCallbacks(LifecycleEvent type, Persistent object)` Invokes callbacks of a specific type for a given entity object.

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

Constructor Detail

### LifecycleCallbackRegistry

    public LifecycleCallbackRegistry(EntityResolver resolver)

  Creates an empty callback registry.

Method Detail

### clear

    public void clear()

  Removes all listeners for all event types.

### clear

    public void clear(int type)

  Removes listeners for a single event type.

### isEmpty

    public boolean isEmpty(LifecycleEvent type)

  Returns true if there are no listeners for a specific event type.

### addDefaultListener

    public void addDefaultListener(LifecycleListener listener)

  Registers a `LifecycleListener` for all events on all entities. Note that listeners are not required to implement `LifecycleListener` interface. Other methods in this class can be used to register arbitrary listeners.

### addDefaultListener

    public void addDefaultListener(LifecycleEvent type,
                                   Object listener,
                                   String methodName)

  Registers a callback method to be invoked on a provided non-entity object when a lifecycle event occurs on any entity that does not suppress default callbacks.

### addListener

    public void addListener(Class<?> entityClass,
                            LifecycleListener listener)

  Registers a `LifecycleListener` for all events on all entities. Note that listeners are not required to implement `LifecycleListener` interface. Other methods in this class can be used to register arbitrary listeners.

### addListener

    public void addListener(LifecycleEvent type,
                            Class<?> entityClass,
                            Object listener,
                            String methodName)

  Registers callback method to be invoked on a provided non-entity object when a lifecycle event occurs for a specific entity.

### addListener

    public void addListener(LifecycleEvent type,
                            Class<?> entityClass,
                            String methodName)

  Registers a callback method to be invoked on an entity class instances when a lifecycle event occurs.

### addListener

    public void addListener(Object listener)

  Adds a listener, mapping its methods to events based on annotations.

  Since:
    3.1

### performCallbacks

    public void performCallbacks(LifecycleEvent type,
                                 Persistent object)

  Invokes callbacks of a specific type for a given entity object.

### performCallbacks

    public void performCallbacks(LifecycleEvent type,
                                 Collection<?> objects)

  Invokes callbacks of a specific type for a collection of entity objects.

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