/*
 * Copyright (c) Meta Platforms, Inc. and affiliates.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.facebook.litho.annotations;

import java.lang.annotation.Retention;
import java.lang.annotation.RetentionPolicy;

/**
 * A method annotation used in classes that are annotated with {@link MountSpec}.
 *
 * <p>Methods annotated with {@link OnUnbind} take a {@code ComponentContext} as the first
 * parameter, the Object that the {@link MountSpec} mounts as the second parameter, followed by any
 * number of {@link Prop}s.
 *
 * <p>The method should return void. This callback will be invoked every time the mounted object is
 * not active anymore but has not been unmounted yet. This happens for example when a LithoView can
 * be in a state where it's not on the screen anymore but it's not been unmounted yet (to re-use
 * items in place for example).
 */
@Retention(RetentionPolicy.CLASS)
public @interface OnUnbind {}
