Polish contribution

Closes gh-921

Issue: SPR-13690

spring-context-support/src/main/java/org/springframework/cache/caffeine/CaffeineCache.java

@@ -18,21 +18,21 @@ package org.springframework.cache.caffeine;
 
 import java.util.function.Function;
 
+import com.github.benmanes.caffeine.cache.LoadingCache;
+
 import org.springframework.cache.support.AbstractValueAdaptingCache;
 import org.springframework.util.Assert;
 
-import com.github.benmanes.caffeine.cache.LoadingCache;
-
 /**
  * Spring {@link org.springframework.cache.Cache} adapter implementation
  * on top of a Caffeine {@link com.github.benmanes.caffeine.cache.Cache} instance.
  *
  * <p>Requires Caffeine 2.0 or higher.
  *
+ * @author Ben Manes
  * @author Juergen Hoeller
  * @author Stephane Nicoll
- * @author Ben Manes
- * @since 4.0
+ * @since 4.3
  */
 public class CaffeineCache extends AbstractValueAdaptingCache {
 

spring-context-support/src/main/java/org/springframework/cache/caffeine/CaffeineCacheManager.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,14 +23,14 @@ import java.util.Map;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.ConcurrentMap;
 
+import com.github.benmanes.caffeine.cache.CacheLoader;
+import com.github.benmanes.caffeine.cache.Caffeine;
+
 import org.springframework.cache.Cache;
 import org.springframework.cache.CacheManager;
 import org.springframework.util.Assert;
 import org.springframework.util.ObjectUtils;
 
-import com.github.benmanes.caffeine.cache.CacheLoader;
-import com.github.benmanes.caffeine.cache.Caffeine;
-
 /**
  * {@link CacheManager} implementation that lazily builds {@link CaffeineCache}
  * instances for each {@link #getCache} request. Also supports a 'static' mode
@@ -43,10 +43,10 @@ import com.github.benmanes.caffeine.cache.Caffeine;
  *
  * <p>Requires Caffeine 2.0 or higher.
  *
+ * @author Ben Manes
  * @author Juergen Hoeller
  * @author Stephane Nicoll
- * @author Ben Manes
- * @since 4.0
+ * @since 4.3
  * @see CaffeineCache
  */
 public class CaffeineCacheManager implements CacheManager {
@@ -101,7 +101,7 @@ public class CaffeineCacheManager implements CacheManager {
 	 * Set the Caffeine to use for building each individual
 	 * {@link CaffeineCache} instance.
 	 * @see #createNativeCaffeineCache
-	 * @see com.github.benmanes.caffeine.cache.CacheBuilder#build()
+	 * @see com.github.benmanes.caffeine.cache.Caffeine#build()
 	 */
 	public void setCaffeine(Caffeine<Object, Object> cacheBuilder) {
 		Assert.notNull(cacheBuilder, "Caffeine must not be null");

spring-context-support/src/test/java/org/springframework/cache/caffeine/CaffeineCacheManagerTests.java

@@ -16,8 +16,8 @@
 
 package org.springframework.cache.caffeine;
 
-import com.github.benmanes.caffeine.cache.Caffeine;
 import com.github.benmanes.caffeine.cache.CacheLoader;
+import com.github.benmanes.caffeine.cache.Caffeine;
 import org.junit.Rule;
 import org.junit.Test;
 import org.junit.rules.ExpectedException;
@@ -29,9 +29,9 @@ import static org.junit.Assert.*;
 import static org.mockito.Mockito.*;
 
 /**
+ * @author Ben Manes
  * @author Juergen Hoeller
  * @author Stephane Nicoll
- * @author Ben Manes
  */
 public class CaffeineCacheManagerTests {
 
@@ -138,7 +138,7 @@ public class CaffeineCacheManagerTests {
 		CaffeineCacheManager cm = new CaffeineCacheManager("c1");
 		Cache cache1 = cm.getCache("c1");
 
-		CacheLoader<Object,Object> loader = mockCacheLoader();
+		CacheLoader<Object, Object> loader = mockCacheLoader();
 		cm.setCacheLoader(loader);
 		Cache cache1x = cm.getCache("c1");
 		assertTrue(cache1x != cache1);

spring-context-support/src/test/java/org/springframework/cache/caffeine/CaffeineCacheTests.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -26,12 +26,13 @@ import org.springframework.cache.Cache;
 import static org.junit.Assert.*;
 
 /**
- * @author Stephane Nicoll
  * @author Ben Manes
+ * @author Stephane Nicoll
  */
 public class CaffeineCacheTests extends AbstractCacheTests<CaffeineCache> {
 
 	private com.github.benmanes.caffeine.cache.Cache<Object, Object> nativeCache;
+
 	private CaffeineCache cache;
 
 	@Before

spring-context/src/main/java/org/springframework/cache/concurrent/ConcurrentMapCacheManager.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2014 the original author or authors.
+ * Copyright 2002-2015 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -35,9 +35,10 @@ import org.springframework.cache.CacheManager;
  * <p>Note: This is by no means a sophisticated CacheManager; it comes with no
  * cache configuration options. However, it may be useful for testing or simple
  * caching scenarios. For advanced local caching needs, consider
- * {@link com.github.benmanes.caffeine.cache.CaffeineCacheManager},
- * {@link org.springframework.cache.guava.GuavaCacheManager}, or
- * {@link org.springframework.cache.ehcache.EhCacheCacheManager}.
+ * {@link org.springframework.cache.jcache.JCacheCacheManager},
+ * {@link org.springframework.cache.ehcache.EhCacheCacheManager},
+ * {@link com.github.benmanes.caffeine.cache.CaffeineCacheManager} or
+ * {@link org.springframework.cache.guava.GuavaCacheManager}.
  *
  * @author Juergen Hoeller
  * @since 3.1

src/asciidoc/integration.adoc

@@ -8160,6 +8160,7 @@ materialized by the `org.springframework.cache.Cache` and
 There are <<cache-store-configuration,a few implementations>> of that abstraction
 available out of the box: JDK `java.util.concurrent.ConcurrentMap` based caches,
 http://ehcache.org/[EhCache], Gemfire cache,
+https://github.com/ben-manes/caffeine/wiki[Caffeine],
 https://code.google.com/p/guava-libraries/wiki/CachesExplained[Guava caches] and
 JSR-107 compliant caches. See <<cache-plug>> for more information on plugging in
 other cache stores/providers.
@@ -8996,7 +8997,7 @@ we did in the example above by defining the target cache through the `cache:defi
 
 [[cache-store-configuration]]
 === Configuring the cache storage
-Out of the box, the cache abstraction provides several storages integration. To use
+Out of the box, the cache abstraction provides several storage integration. To use
 them, one needs to simply declare an appropriate `CacheManager` - an entity that
 controls and manages ++Cache++s and can be used to retrieve these for storage.
 
@@ -9054,6 +9055,42 @@ This setup bootstraps the ehcache library inside Spring IoC (through the `ehcach
 is then wired into the dedicated `CacheManager` implementation. Note the entire
 ehcache-specific configuration is read from `ehcache.xml`.
 
+[[cache-store-configuration-caffeine]]
+==== Caffeine Cache
+
+Caffeine is a Java 8 rewrite of Guava's cache and its implementation is located under
+`org.springframework.cache.caffeine` package and provides access to several features
+of Caffeine.
+
+Configuring a `CacheManager` that creates the cache on demand is straightforward:
+
+[source,xml,indent=0]
+[subs="verbatim,quotes"]
+----
+	<bean id="cacheManager"
+	      class="org.springframework.cache.caffeine.CaffeineCacheManager"/>
+----
+
+It is also possible to provide the caches to use explicitly. In that case, only those
+will be made available by the manager:
+
+[source,xml,indent=0]
+[subs="verbatim,quotes"]
+----
+	<bean id="cacheManager" class="org.springframework.cache.caffeine.CaffeineCacheManager">
+		<property name="caches">
+			<set>
+				<value>default</value>
+				<value>books</value>
+			</set>
+		</property>
+	</bean>
+----
+
+The Caffeine `CacheManager` also supports customs `Caffeine` and `CacheLoader`. See
+the https://github.com/ben-manes/caffeine/wiki[Caffeine documentation] for more
+information about those.
+
 [[cache-store-configuration-guava]]
 ==== Guava Cache