| // Copyright 2018 The Feed Authors. |
| // |
| // 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.google.android.libraries.feed.piet; |
| |
| |
| /** |
| * Interface defining a simple Pool of Adapters. |
| * |
| * @param <A> The adapter being managed by the {@link RecyclerPool} |
| */ |
| interface RecyclerPool<A extends ElementAdapter<?, ?>> { |
| |
| /** |
| * Return an {@link ElementAdapter} matching the {@link RecyclerKey} or null if one isn't found. |
| */ |
| /*@Nullable*/ |
| A get(RecyclerKey key); |
| |
| /** Put a {@link ElementAdapter} with a {@link RecyclerKey} into the pool. */ |
| void put(RecyclerKey key, A adapter); |
| |
| /** Clear everything out of the recycler pool. */ |
| void clear(); |
| } |