Getting started with Ehcache 3
You can introduce caching to your Java application quite easily with Ehcache, either using its new, powerful API
or using the
javax.cache
API as defined in the JSR-107 specification.
Using the core Ehcache v3 API
Ehcache 3 has a streamlined, modernized type-safe API (and configuration) that will greatly improve your coding
experience when compared to Ehcache 2.x.
Downloading the jars
You can download the jar directly from
github or get it from Maven Central:
<dependency>
<groupId>org.ehcache</groupId>
<artifactId>ehcache</artifactId>
<version>3.10.0</version>
</dependency>
Coding to the Ehcache 3 API
CacheManager cacheManager = CacheManagerBuilder.newCacheManagerBuilder()
.withCache("preConfigured",
CacheConfigurationBuilder.newCacheConfigurationBuilder(Long.class, String.class,
ResourcePoolsBuilder.heap(100))
.build())
.build(true);
Cache<Long, String> preConfigured
= cacheManager.getCache("preConfigured", Long.class, String.class);
Cache<Long, String> myCache = cacheManager.createCache("myCache",
CacheConfigurationBuilder.newCacheConfigurationBuilder(Long.class, String.class,
ResourcePoolsBuilder.heap(100)).build());
myCache.put(1L, "da one!");
String value = myCache.get(1L);
cacheManager.close();
Using the JSR-107 API
Downloading the jars
You'll need the Ehcache distribution as mentioned
above, you'll also require the actual JSR-107 API:
<dependency>
<groupId>javax.cache</groupId>
<artifactId>cache-api</artifactId>
<version>1.1.0</version>
</dependency>
Not quite ready yet?
Read the
user documentation for everything you've been wondering about the new API!
Getting started with Ehcache 2
You can introduce caching to your Java application quiet easily with Ehcache 2.
Using the core Ehcache v2 API
Downloading the jars
You can download the jar directly from
ehcache.org or get it from Maven Central:
<dependency>
<groupId>net.sf.ehcache</groupId>
<artifactId>ehcache</artifactId>
<version>2.10.3</version>
</dependency>
Coding to the Ehcache 2 API
// Create a cache manager
final CacheManager cacheManager = new CacheManager();
// create the cache called "hello-world"
final Cache cache = cacheManager.getCache("hello-world");
// create a key to map the data to
final String key = "greeting";
// Create a data element
final Element putGreeting = new Element(key, "Hello, World!");
// Put the element into the data store
cache.put(putGreeting);
// Retrieve the data element
final Element getGreeting = cache.get(key);
// Print the value
System.out.println(getGreeting.getObjectValue());
Not quite ready yet?
Read the
user documentation for everything you've ever wondered about the Ehcache 2 API!