forked from graphql-java/java-dataloader
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathCacheKey.java
More file actions
51 lines (47 loc) · 1.41 KB
/
CacheKey.java
File metadata and controls
51 lines (47 loc) · 1.41 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
/*
* Copyright (c) 2016 The original author or authors
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Apache License v2.0 which accompanies this distribution.
*
* The Eclipse Public License is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* The Apache License v2.0 is available at
* http://www.opensource.org/licenses/apache2.0.php
*
* You may elect to redistribute this code under either of these licenses.
*/
package org.dataloader;
/**
* Function that is invoked on input keys of type {@code K} to derive keys that are required by the {@link CacheMap}
* implementation.
*
* @param <K> type parameter indicating the type of the input key
*
* @author <a href="https://github.com/aschrijver/">Arnold Schrijver</a>
*/
@FunctionalInterface
public interface CacheKey<K> {
/**
* Returns the cache key that is created from the provided input key.
*
* @param input the input key
*
* @return the cache key
*/
Object getKey(K input);
/**
* Returns the cache key that is created from the provided input key and context.
*
* @param input the input key
*
* @param context the context
*
* @return the cache key
*/
default Object getKeyWithContext(K input, Object context) {
return getKey(input);
}
}