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CacheKey.java
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/*
* Copyright (c) 2016 The original author or authors
*
* All rights reserved. This program and the acc
6039
ompanying 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;
import org.dataloader.annotations.PublicSpi;
import org.jspecify.annotations.NullMarked;
/**
* 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
@NullMarked
@PublicSpi
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);
}
}