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

    Constructors
    Constructor and Description
    `LifecycleCallbackRegistry(EntityResolver resolver)` Creates an empty callback registry.

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `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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