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/*
* Copyright (C) 2016 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 com.android.documentsui.base;
import java.util.function.Function;
import javax.annotation.Nullable;
/**
* A {@link Function}-like interface for looking up information.
*
* @param K input type (the "key").
* @param V output type (the "value").
*/
@FunctionalInterface
public interface Lookup<K, V> {
@Nullable V lookup(K key);
}