v17/leanback/src/android/support/v17/leanback/widget/FacetProviderAdapter.java

/*
 * Copyright (C) 2015 The Android Open Source Project
 *
 * 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 android.support.v17.leanback.widget;

import android.support.v7.widget.RecyclerView;

/**
 * Optional interface that implemented by {@link RecyclerView.Adapter} to
 * query {@link FacetProvider} for a given type within Adapter.  Note that
 * {@link RecyclerView.ViewHolder} may also implement {@link FacetProvider} which
 * has a higher priority than the one returned from the FacetProviderAdapter.
 */
public interface FacetProviderAdapter {

    /**
     * Queries {@link FacetProvider} for a given type within Adapter.
     * @param type        type of the item.
     * @return Facet provider for the type.
     */
    public FacetProvider getFacetProvider(int type);

}