Examples of org.springframework.cache.Cache

org.springframework.cache.Cache
Interface that defines the common cache operations. Note: Due to the generic use of caching, it is recommended that implementations allow storage of null values (for example to cache methods that return {@code null}). @author Costin Leau @since 3.1

    assertTrue(isEmpty(cache));
  }


  @Test
  public void removeAllWithException() {
    Cache cache = getCache(DEFAULT_CACHE);


    Object key = createKey(name.getMethodName());
    cache.put(key, new Object());


    try {
      service.removeAllWithException(true);
      fail("Should have thrown an exception");
    }

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    assertTrue(isEmpty(cache));
  }


  @Test
  public void removeAllWithExceptionVetoRemove() {
    Cache cache = getCache(DEFAULT_CACHE);


    Object key = createKey(name.getMethodName());
    cache.put(key, new Object());


    try {
      service.removeAllWithException(false);
      fail("Should have thrown an exception");
    }
    catch (NullPointerException e) {
      // This is what we expect
    }
    assertNotNull(cache.get(key));
  }

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    assertNotNull(cache.get(key));
  }


  @Test
  public void earlyRemoveAll() {
    Cache cache = getCache(DEFAULT_CACHE);


    Object key = createKey(name.getMethodName());
    cache.put(key, new Object());


    service.earlyRemoveAll();


    assertTrue(isEmpty(cache));
  }

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    assertTrue(isEmpty(cache));
  }


  @Test
  public void earlyRemoveAllWithException() {
    Cache cache = getCache(DEFAULT_CACHE);


    Object key = createKey(name.getMethodName());
    cache.put(key, new Object());


    try {
      service.earlyRemoveAllWithException(true);
      fail("Should have thrown an exception");
    }

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    assertTrue(isEmpty(cache));
  }


  @Test
  public void earlyRemoveAllWithExceptionVetoRemove() {
    Cache cache = getCache(DEFAULT_CACHE);


    Object key = createKey(name.getMethodName());
    cache.put(key, new Object());


    try {
      service.earlyRemoveAllWithException(false);
      fail("Should have thrown an exception");
    }

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  private Object createKey(Object... params) {
    return SimpleKeyGenerator.generateKey(params);
  }


  private Cache getCache(String name) {
    Cache cache = cacheManager.getCache(name);
    assertNotNull("required cache " + name + " does not exist", cache);
    return cache;
  }

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    new TransactionAwareCacheDecorator(null);
  }


  @Test
  public void regularOperationsOnTarget() {
    Cache target = new ConcurrentMapCache("testCache");
    Cache cache = new TransactionAwareCacheDecorator(target);
    assertEquals(target.getName(), cache.getName());
    assertEquals(target.getNativeCache(), cache.getNativeCache());


    Object key = new Object();
    target.put(key, "123");
    assertEquals("123", cache.get(key).get());
    assertEquals("123", cache.get(key, String.class));


    cache.clear();
    assertNull(target.get(key));
  }

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    assertNull(target.get(key));
  }


  @Test
  public void putNonTransactional() {
    Cache target = new ConcurrentMapCache("testCache");
    Cache cache = new TransactionAwareCacheDecorator(target);


    Object key = new Object();
    cache.put(key, "123");
    assertEquals("123", target.get(key, String.class));
  }

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    assertEquals("123", target.get(key, String.class));
  }


  @Test
  public void putTransactional() {
    Cache target = new ConcurrentMapCache("testCache");
    Cache cache = new TransactionAwareCacheDecorator(target);


    TransactionStatus status = txManager.getTransaction(new DefaultTransactionAttribute(
        TransactionDefinition.PROPAGATION_REQUIRED));


    Object key = new Object();
    cache.put(key, "123");
    assertNull(target.get(key));
    txManager.commit(status);


    assertEquals("123", target.get(key, String.class));
  }

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    assertEquals("123", target.get(key, String.class));
  }


  @Test
  public void putIfAbsent() { // no transactional support for putIfAbsent
    Cache target = new ConcurrentMapCache("testCache");
    Cache cache = new TransactionAwareCacheDecorator(target);


    Object key = new Object();
    assertNull(cache.putIfAbsent(key, "123"));
    assertEquals("123", target.get(key, String.class));
    assertEquals("123", cache.putIfAbsent(key, "456").get());
    assertEquals("123", target.get(key, String.class)); // unchanged
  }

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