Examples of javax.cache.CacheManager

javax.cache.CacheManager
A {@link CacheManager} provides a means of establishing, configuring,acquiring, closing and destroying uniquely named {@link Cache}s.
{@link Cache}s produced and owned by a {@link CacheManager} typically sharecommon infrastructure, for example, a common {@link ClassLoader} andimplementation specific {@link Properties}.
Implementations of {@link CacheManager} may additionally provide and shareexternal resources between the {@link Cache}s being managed, for example, the content of the managed {@link Cache}s may be stored in the same cluster.
By default {@link CacheManager} instances are typically acquired through theuse of a {@link CachingProvider}. Implementations however may additionally provide other mechanisms to create, acquire, manage and configure {@link CacheManager}s, including:
- making use of {@link java.util.ServiceLoader}s,
- permitting the use of the new operator to create a concrete implementation,
- providing the construction through the use of one or more builders, and
- through the use of dependency injection.
The default {@link CacheManager} however can always be acquired using thedefault configured {@link CachingProvider} obtained by the {@link Caching}class. For example:
```
 CachingProvider provider = Caching.getCachingProvider(); CacheManager manager = provider.getCacheManager(); 
```
Within a Java process {@link CacheManager}s and the {@link Cache}s they manage are scoped and uniquely identified by a {@link URI}, the meaning of which is implementation specific. To obtain the default {@link URI}, {@link ClassLoader} and {@link Properties} for an implementation, consult the{@link CachingProvider} class. @author Greg Luck @author Yannis Cosmadopoulos @author Brian Oliver @see Caching @see CachingProvider @see Cache @since 1.0

  @Test
  public void simpleAPIWithGenericsAndNoTypeEnforcement() {


    //resolve a cache manager
    CachingProvider cachingProvider = Caching.getCachingProvider();
    CacheManager cacheManager = cachingProvider.getCacheManager();


    //configure the cache
    String cacheName = "sampleCache3";
    MutableConfiguration config = new MutableConfiguration<String, Integer>();
    config.setExpiryPolicyFactory(AccessedExpiryPolicy.factoryOf(ONE_HOUR))
        .setStatisticsEnabled(true);


    //create the cache
    cacheManager.createCache(cacheName, config);


    //... and then later to get the cache
    Cache<String, Integer> cache = cacheManager.getCache(cacheName);


    //use the cache
    String key = "key";
    Integer value1 = 1;
    cache.put("key", value1);

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  @Test
  public void simpleAPINoGenericsAndNoTypeEnforcement() {


    //resolve a cache manager
    CachingProvider cachingProvider = Caching.getCachingProvider();
    CacheManager cacheManager = cachingProvider.getCacheManager();


    //configure the cache
    String cacheName = "sampleCache";
    MutableConfiguration config = new MutableConfiguration();
    config.setExpiryPolicyFactory(AccessedExpiryPolicy.factoryOf(ONE_HOUR))
    .setStatisticsEnabled(true);


    //create the cache
    cacheManager.createCache(cacheName, config);


    //... and then later to get the cache
    Cache cache = cacheManager.getCache(cacheName);


    //use the cache
    String key = "key";
    Integer value1 = 1;
    cache.put(key, value1);

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    @Test
    public void simpleAPITypeEnforcementObject() {


        //resolve a cache manager
        CachingProvider cachingProvider = Caching.getCachingProvider();
        CacheManager cacheManager = cachingProvider.getCacheManager();


        //configure the cache
        MutableConfiguration<Object, Object> config = new MutableConfiguration<>();
        config.setTypes(Object.class, Object.class)
                .setExpiryPolicyFactory(AccessedExpiryPolicy.factoryOf(ONE_HOUR))
                .setStatisticsEnabled(true);


        //create the cache
        cacheManager.createCache("simpleCache4", config);


        //... and then later to get the cache
        Cache<Object, Object> cache = Caching.getCache("simpleCache4",
                Object.class, Object.class);

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  public void accessStatistics() throws MalformedObjectNameException,
      AttributeNotFoundException, MBeanException, ReflectionException,
      InstanceNotFoundException {


    CachingProvider cachingProvider = Caching.getCachingProvider();
    CacheManager cacheManager = cachingProvider.getCacheManager();


    MutableConfiguration<String, Integer> config =
        new MutableConfiguration<String, Integer>();
    config.setTypes(String.class, Integer.class)
        .setExpiryPolicyFactory(AccessedExpiryPolicy.factoryOf(ONE_HOUR))
        .setStatisticsEnabled(true);


    Cache<String, Integer> cache = cacheManager.createCache("simpleCache", config);


    Set<ObjectName> registeredObjectNames = null;
    MBeanServer mBeanServer = ManagementFactory.getPlatformMBeanServer();


    ObjectName objectName = new ObjectName("javax.cache:type=CacheStatistics"

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public class TypeSafety {


  @Test
  public void runtimeTypeEnforcement() {
    CachingProvider cachingProvider = Caching.getCachingProvider();
    CacheManager cacheManager = cachingProvider.getCacheManager();


    MutableConfiguration<String, Integer> config = new
        MutableConfiguration<>();
    config.setTypes(String.class, Integer.class);


    Cache<String, Integer> simpleCache = cacheManager.createCache("simpleCache5", config);


    simpleCache.put("key1", 3);
    Integer value2 = simpleCache.get("key1");


    //Shows how you might try to get around runtime+generics safety

View Full Code Here

   */
  @Test
  public void incrementValue() {


    CachingProvider provider = Caching.getCachingProvider();
    CacheManager manager = provider.getCacheManager();


    MutableConfiguration<String, Integer> configuration =
      new MutableConfiguration<String, Integer>()
        .setTypes(String.class, Integer.class);


    Cache<String, Integer> cache = manager.createCache("example", configuration);


    String key = "counter";
    cache.put(key, 1);


    int previous = cache.invoke(key, new IncrementProcessor<String>());

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  public void completionListenerExample() {


    CachingProvider cachingProvider = Caching.getCachingProvider();
    CacheManager cacheManager = cachingProvider.getCacheManager();


    MutableConfiguration<String, Integer> config = new MutableConfiguration<>();
    config.setTypes(String.class, Integer.class)
        .setExpiryPolicyFactory(AccessedExpiryPolicy.factoryOf(ONE_HOUR))
        .setStatisticsEnabled(true);


    Cache<String, Integer> cache = cacheManager.createCache("simpleCache", config);


    HashSet<String> keys = new HashSet<>();
    keys.add("23432lkj");
    keys.add("4fsdldkj");

View Full Code Here

  @Test
  public void simpleAPITypeEnforcement() {


    //resolve a cache manager
    CachingProvider cachingProvider = Caching.getCachingProvider();
    CacheManager cacheManager = cachingProvider.getCacheManager();


    //configure the cache
    MutableConfiguration<String, Integer> config = new MutableConfiguration<>();
    //uses store by reference
    config.setStoreByValue(false)
        .setTypes(String.class, Integer.class)
        .setExpiryPolicyFactory(AccessedExpiryPolicy.factoryOf(ONE_HOUR))
        .setStatisticsEnabled(true);


    //create the cache
    cacheManager.createCache("simpleOptionalCache", config);


    //... and then later to get the cache
    Cache<String, Integer> cache = Caching.getCache("simpleOptionalCache",
        String.class, Integer.class);

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