Getting Started
Prerequisites
<dependencies>
<dependency>
<groupId>one.microstream</groupId>
<artifactId>microstream-cache</artifactId>
<version>07.01.00-MS-GA</version>
</dependency>
</dependencies>
The above dependency adds the JCache API and MicroStream Embedded storage as transient dependencies to your project.
Hello World
CachingProvider provider = Caching.getCachingProvider();
CacheManager cacheManager = provider.getCacheManager();
MutableConfiguration<Integer, String> configuration = new MutableConfiguration<Integer, String>()
.setStoreByValue(false)
.setExpiryPolicyFactory(CreatedExpiryPolicy.factoryOf(Duration.ONE_MINUTE));
Cache<Integer, String> cache = cacheManager.createCache("jCache", configuration);
cache.put(1, "Hello World");
String value = cache.get(1);
-
Get the default
CachingProvider
implementation from the application’s classpath. This method will work if and only if there is only one JCache implementation available in the classpath. If there are multiple providers then use the fully qualified name +Caching.getCachingProvider("one.microstream.cache.types.CachingProvider")
instead. -
Get the default
CacheManager
instance using the provider. -
Create a cache configuration using
MutableConfiguration
-
with key type and value type as
Integer
andString
respectively -
configured to store the cache entries by reference (not by value)
-
and with an expiry time of one minute defined for entries from the moment they are created.
-
Using the cache manager, create a cache named
jCache
with the configuration created in step 3. -
Put some data into the cache
-
And retrieve it.
The same can be done using MicroSteam’s CacheConfiguration
API.
This time we use a EmbeddedStorageManager
as a backing store for the cache.
EmbeddedStorageManager storageManager = EmbeddedStorage.start();
CachingProvider provider = Caching.getCachingProvider();
CacheManager cacheManager = provider.getCacheManager();
CacheConfiguration<Integer, String> configuration = CacheConfiguration
.Builder(Integer.class, String.class, "jCache", storageManager)
.expiryPolicyFactory(CreatedExpiryPolicy.factoryOf(Duration.ONE_HOUR))
.build();
Cache<Integer, String> cache = cacheManager.createCache("jCache", configuration);
cache.put(1, "one");
String value = cache.get(1);