net.sf.ehcache.Ehcache.get()方法的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中net.sf.ehcache.Ehcache.get()方法的一些代码示例，展示了Ehcache.get()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Ehcache.get()方法的具体详情如下：
包路径：net.sf.ehcache.Ehcache
类名称：Ehcache
方法名：get

Ehcache.get介绍

[英]Gets an element from the cache. Updates Element Statistics

Note that the Element's lastAccessTime is always the time of this get. Use #getQuiet(Object) to peak into the Element to see its last access time with get
[中]从缓存中获取元素。更新元素统计信息
请注意，元素的lastAccessTime始终是此get的时间。使用#getQuiet（Object）到达元素的峰值，查看其使用get的最后访问时间

代码示例

代码示例来源：origin: spring-projects/spring-framework

  1. @Nullable
  2. private Element lookup(Object key) {
  3.   return this.cache.get(key);
  4. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Override
  2. @SuppressWarnings("unchecked")
  3. @Nullable
  4. public <T> T get(Object key, @Nullable Class<T> type) {
  5.   Element element = this.cache.get(key);
  6.   Object value = (element != null ? element.getObjectValue() : null);
  7.   if (value != null && type != null && !type.isInstance(value)) {
  8.     throw new IllegalStateException(
  9.         "Cached value is not of required type [" + type.getName() + "]: " + value);
  10.   }
  11.   return (T) value;
  12. }

代码示例来源：origin: AxonFramework/AxonFramework

  1. @SuppressWarnings("unchecked")
  2. @Override
  3. public <K, V> V get(K key) {
  4.   final Element element = ehCache.get(key);
  5.   return element == null ? null : (V) element.getObjectValue();
  6. }

代码示例来源：origin: gocd/gocd

  1. public <T> T get(String key, Supplier<T> compute) {
  2.   Element element = ehcache.get(key);
  3.   if (element != null) {
  4.     return (T) element.getObjectValue();
  5.   }
  6.   synchronized (key.intern()) {
  7.     element = ehcache.get(key);
  8.     if (element != null) {
  9.       return (T) element.getObjectValue();
  10.     }
  11.     T object = compute.get();
  12.     ehcache.put(new Element(key, object));
  13.     return object;
  14.   }
  15. }

代码示例来源：origin: gocd/gocd

  1. private Object getWithoutTransactionCheck(String key) {
  2.   Element element = ehCache.get(key);
  3.   if (element == null) {
  4.     return null;
  5.   }
  6.   Object value = element.getObjectValue();
  7.   logUnsavedPersistentObjectInteraction(value, "PersistentObject {} without an id served out of cache.");
  8.   return value;
  9. }

代码示例来源：origin: org.springframework/spring-context-support

  1. @Override
  2. @SuppressWarnings("unchecked")
  3. @Nullable
  4. public <T> T get(Object key, @Nullable Class<T> type) {
  5.   Element element = this.cache.get(key);
  6.   Object value = (element != null ? element.getObjectValue() : null);
  7.   if (value != null && type != null && !type.isInstance(value)) {
  8.     throw new IllegalStateException(
  9.         "Cached value is not of required type [" + type.getName() + "]: " + value);
  10.   }
  11.   return (T) value;
  12. }

代码示例来源：origin: spring-projects/spring-security

  1. public UserDetails getUserFromCache(String username) {
  2.   Element element = cache.get(username);
  3.   if (logger.isDebugEnabled()) {
  4.     logger.debug("Cache hit: " + (element != null) + "; username: " + username);
  5.   }
  6.   if (element == null) {
  7.     return null;
  8.   }
  9.   else {
  10.     return (UserDetails) element.getValue();
  11.   }
  12. }

代码示例来源：origin: spring-projects/spring-security

  1. public CasAuthenticationToken getByTicketId(final String serviceTicket) {
  2.   final Element element = cache.get(serviceTicket);
  3.   if (logger.isDebugEnabled()) {
  4.     logger.debug("Cache hit: " + (element != null) + "; service ticket: "
  5.         + serviceTicket);
  6.   }
  7.   return element == null ? null : (CasAuthenticationToken) element.getValue();
  8. }

代码示例来源：origin: apache/kylin

  1. public ValueWrapper get(Object key) {
  2.   Element element = this.cache.get(key);
  3.   return (element != null ? new SimpleValueWrapper(element.getObjectValue()) : null);
  4. }

代码示例来源：origin: spring-projects/spring-security

  1. public MutableAcl getFromCache(ObjectIdentity objectIdentity) {
  2.   Assert.notNull(objectIdentity, "ObjectIdentity required");
  3.   Element element = null;
  4.   try {
  5.     element = cache.get(objectIdentity);
  6.   }
  7.   catch (CacheException ignored) {
  8.   }
  9.   if (element == null) {
  10.     return null;
  11.   }
  12.   return initializeTransientFields((MutableAcl) element.getValue());
  13. }

代码示例来源：origin: spring-projects/spring-security

  1. public MutableAcl getFromCache(Serializable pk) {
  2.   Assert.notNull(pk, "Primary key (identifier) required");
  3.   Element element = null;
  4.   try {
  5.     element = cache.get(pk);
  6.   }
  7.   catch (CacheException ignored) {
  8.   }
  9.   if (element == null) {
  10.     return null;
  11.   }
  12.   return initializeTransientFields((MutableAcl) element.getValue());
  13. }

代码示例来源：origin: gocd/gocd

  1. @Override
  2.   public Object extractPrincipal(X509Certificate cert) {
  3.     try {
  4.       Element element = cache.get(cert);
  5.       if (element != null) {
  6.         return element.getObjectValue();
  7.       }
  8.     } catch (CacheException cacheException) {
  9.       throw new DataRetrievalFailureException("Cache failure: " + cacheException.getMessage());
  10.     }
  12.     final Object principal = delegate.extractPrincipal(cert);
  13.     cache.put(new Element(cert, principal));
  15.     return principal;
  16.   }
  17. }

代码示例来源：origin: spring-projects/spring-security

  1. @Test
  2. public void getFromCacheObjectIdentity() throws Exception {
  3.   when(cache.get(acl.getId())).thenReturn(new Element(acl.getId(), acl));
  4.   assertThat(myCache.getFromCache(acl.getId())).isEqualTo(acl);
  5. }

代码示例来源：origin: spring-projects/spring-security

  1. @Test
  2. public void getFromCacheSerializable() throws Exception {
  3.   when(cache.get(acl.getId())).thenReturn(new Element(acl.getId(), acl));
  4.   assertThat(myCache.getFromCache(acl.getId())).isEqualTo(acl);
  5. }

代码示例来源：origin: spring-projects/spring-security

  1. @Test
  2. public void getFromCacheSerializablePopulatesTransient() throws Exception {
  3.   when(cache.get(acl.getId())).thenReturn(new Element(acl.getId(), acl));
  4.   myCache.putInCache(acl);
  5.   ReflectionTestUtils.setField(acl, "permissionGrantingStrategy", null);
  6.   ReflectionTestUtils.setField(acl, "aclAuthorizationStrategy", null);
  7.   MutableAcl fromCache = myCache.getFromCache(acl.getId());
  8.   assertThat(ReflectionTestUtils.getField(fromCache, "aclAuthorizationStrategy"))
  9.       .isNotNull();
  10.   assertThat(ReflectionTestUtils.getField(fromCache, "permissionGrantingStrategy"))
  11.       .isNotNull();
  12. }

代码示例来源：origin: spring-projects/spring-security

  1. @Test
  2. public void getFromCacheObjectIdentityPopulatesTransient() throws Exception {
  3.   when(cache.get(acl.getObjectIdentity()))
  4.       .thenReturn(new Element(acl.getId(), acl));
  5.   myCache.putInCache(acl);
  6.   ReflectionTestUtils.setField(acl, "permissionGrantingStrategy", null);
  7.   ReflectionTestUtils.setField(acl, "aclAuthorizationStrategy", null);
  8.   MutableAcl fromCache = myCache.getFromCache(acl.getObjectIdentity());
  9.   assertThat(ReflectionTestUtils.getField(fromCache, "aclAuthorizationStrategy"))
  10.       .isNotNull();
  11.   assertThat(ReflectionTestUtils.getField(fromCache, "permissionGrantingStrategy"))
  12.       .isNotNull();
  13. }

代码示例来源：origin: spring-projects/spring-security

  1. @Test
  2. public void evictCacheSerializable() throws Exception {
  3.   when(cache.get(acl.getObjectIdentity()))
  4.       .thenReturn(new Element(acl.getId(), acl));
  5.   myCache.evictFromCache(acl.getObjectIdentity());
  6.   verify(cache).remove(acl.getId());
  7.   verify(cache).remove(acl.getObjectIdentity());
  8. }

代码示例来源：origin: spring-projects/spring-security

  1. @Test
  2.   public void evictCacheObjectIdentity() throws Exception {
  3.     when(cache.get(acl.getId())).thenReturn(new Element(acl.getId(), acl));
  5.     myCache.evictFromCache(acl.getId());
  7.     verify(cache).remove(acl.getId());
  8.     verify(cache).remove(acl.getObjectIdentity());
  9.   }
  10. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void testEhCacheFactoryBeanWithSelfPopulatingCache() {
  3.   EhCacheManagerFactoryBean cacheManagerFb = new EhCacheManagerFactoryBean();
  4.   cacheManagerFb.afterPropertiesSet();
  5.   try {
  6.     CacheManager cm = cacheManagerFb.getObject();
  7.     EhCacheFactoryBean cacheFb = new EhCacheFactoryBean();
  8.     cacheFb.setCacheManager(cm);
  9.     cacheFb.setCacheName("myCache1");
  10.     cacheFb.setCacheEntryFactory(key -> key);
  11.     assertEquals(cacheFb.getObjectType(), SelfPopulatingCache.class);
  12.     cacheFb.afterPropertiesSet();
  13.     Ehcache myCache1 = cm.getEhcache("myCache1");
  14.     assertTrue(myCache1 instanceof SelfPopulatingCache);
  15.     assertEquals("myKey1", myCache1.get("myKey1").getObjectValue());
  16.   }
  17.   finally {
  18.     cacheManagerFb.destroy();
  19.   }
  20. }

代码示例来源：origin: spring-projects/spring-framework

  1. @Test
  2. public void testEhCacheFactoryBeanWithUpdatingSelfPopulatingCache() {
  3.   EhCacheManagerFactoryBean cacheManagerFb = new EhCacheManagerFactoryBean();
  4.   cacheManagerFb.afterPropertiesSet();
  5.   try {
  6.     CacheManager cm = cacheManagerFb.getObject();
  7.     EhCacheFactoryBean cacheFb = new EhCacheFactoryBean();
  8.     cacheFb.setCacheManager(cm);
  9.     cacheFb.setCacheName("myCache1");
  10.     cacheFb.setCacheEntryFactory(new UpdatingCacheEntryFactory() {
  11.       @Override
  12.       public Object createEntry(Object key) {
  13.         return key;
  14.       }
  15.       @Override
  16.       public void updateEntryValue(Object key, Object value) {
  17.       }
  18.     });
  19.     assertEquals(cacheFb.getObjectType(), UpdatingSelfPopulatingCache.class);
  20.     cacheFb.afterPropertiesSet();
  21.     Ehcache myCache1 = cm.getEhcache("myCache1");
  22.     assertTrue(myCache1 instanceof UpdatingSelfPopulatingCache);
  23.     assertEquals("myKey1", myCache1.get("myKey1").getObjectValue());
  24.   }
  25.   finally {
  26.     cacheManagerFb.destroy();
  27.   }
  28. }

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