net.sf.ehcache.Ehcache.getKeys()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.getKeys()方法的一些代码示例，展示了Ehcache.getKeys()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.getKeys()方法的具体详情如下：
包路径：net.sf.ehcache.Ehcache
类名称：Ehcache
方法名：getKeys

Ehcache.getKeys介绍

[英]Returns a list of all elements in the cache, whether or not they are expired.

The returned keys are unique and can be considered a set.

The List returned is not live. It is a copy.

The time taken is O(n). For large caches - or caches with high-latency storage this method can take a very long time to complete, may cause timeouts if using features such NonStopCache or transactions, and is not guaranteed to give a consistent view of the cache entry set. Usage is highly discouraged.
[中]返回缓存中所有元素的列表，无论它们是否过期。
返回的密钥是唯一的，可以视为一组。
返回的列表不是活动列表。这是一份副本。
所用时间为O（n）。对于大型缓存或具有高延迟存储的缓存，此方法可能需要很长时间才能完成，如果使用非操作缓存或事务等功能，可能会导致超时，并且不能保证提供缓存项集的一致视图。不鼓励使用。

代码示例

代码示例来源：origin: gocd/gocd

  1. public List<String> getKeys() {
  2.   return ehCache.getKeys();
  3. }

代码示例来源：origin: apache/shiro

  1. public Set<K> keys() {
  2.   try {
  3.     @SuppressWarnings({"unchecked"})
  4.     List<K> keys = cache.getKeys();
  5.     if (!isEmpty(keys)) {
  6.       return Collections.unmodifiableSet(new LinkedHashSet<K>(keys));
  7.     } else {
  8.       return Collections.emptySet();
  9.     }
  10.   } catch (Throwable t) {
  11.     throw new CacheException(t);
  12.   }
  13. }

代码示例来源：origin: apache/shiro

  1. public Collection<V> values() {
  2.   try {
  3.     @SuppressWarnings({"unchecked"})
  4.     List<K> keys = cache.getKeys();
  5.     if (!isEmpty(keys)) {
  6.       List<V> values = new ArrayList<V>(keys.size());
  7.       for (K key : keys) {
  8.         V value = get(key);
  9.         if (value != null) {
  10.           values.add(value);
  11.         }
  12.       }
  13.       return Collections.unmodifiableList(values);
  14.     } else {
  15.       return Collections.emptyList();
  16.     }
  17.   } catch (Throwable t) {
  18.     throw new CacheException(t);
  19.   }
  20. }

代码示例来源：origin: net.sf.ehcache/ehcache

  1. /**
  2.  * {@inheritDoc}
  3.  */
  4. public List getKeys() throws IllegalStateException, CacheException {
  5.   return underlyingCache.getKeys();
  6. }

代码示例来源：origin: net.sf.ehcache/ehcache

  1. @SuppressWarnings("unchecked")
  2. @Override
  3. public Iterable<K> generateKeys(Ehcache cache) {
  4.   return cache.getKeys();
  5. }

代码示例来源：origin: net.sf.ehcache/ehcache

  1. /**
  2.  * Returns a list of all elements in the cache, whether or not they are expired.
  3.  * <p>
  4.  * The returned keys are unique and can be considered a set.
  5.  * <p>
  6.  * The List returned is not live. It is a copy.
  7.  * <p>
  8.  * The time taken is O(n). On a single cpu 1.8Ghz P4, approximately 8ms is required
  9.  * for each 1000 entries.
  10.  *
  11.  * @return a list of {@link Object} keys
  12.  */
  13. public List getKeys() throws RemoteException {
  14.   List keys = cache.getKeys();
  15.   if (keys instanceof Serializable) {
  16.     return keys;
  17.   }
  18.   return new ArrayList(keys);
  19. }

代码示例来源：origin: net.sf.ehcache/ehcache

  1. /**
  2. * {@inheritDoc}
  3. */
  4. public List getKeys() throws IllegalStateException, CacheException {
  5.   // THIS IS GENERATED CODE -- DO NOT HAND MODIFY!
  6.   Thread t = Thread.currentThread();
  7.   ClassLoader prev = t.getContextClassLoader();
  8.   t.setContextClassLoader(this.classLoader);
  9.   try {
  10.     return Collections.unmodifiableList(new ClassLoaderAwareList(this.cache.getKeys()));
  11.   } finally {
  12.     t.setContextClassLoader(prev);
  13.   }
  14. }

代码示例来源：origin: banq/jdonframework

  1. public void notifyRemoveAll(Ehcache ehcache) {
  2.   // TODO Auto-generated method stub
  3.   Iterator ite = ehcache.getKeys().iterator();
  4.   while (ite.hasNext()) {
  5.     Element e = ehcache.get(ite.next());
  6.     try {
  7.       Object model = e.getObjectValue();
  8.       if (model instanceof LifeCycle) {
  9.         LifeCycle lf = (LifeCycle) model;
  10.         lf.stop();
  11.       }
  12.     } catch (Exception ex) {
  13.     }
  14.   }
  15. }

代码示例来源：origin: net.sf.ehcache/ehcache

  1. /**
  2.  * Performs bootstrap loading.  May be executed on a independent thread.
  3.  */
  4. protected void doLoad(Ehcache cache) {
  5.   int loadedElements = 0;
  6.   final Iterator iterator = cache.getKeys().iterator();
  7.   while (iterator.hasNext() && !isInMemoryLimitReached(cache, loadedElements)) {
  8.     if (cache.get(iterator.next()) != null) {
  9.       ++loadedElements;
  10.     }
  11.   }
  12.   LOG.debug("Loaded {} elements from disk into heap for cache {}", loadedElements, cache.getName());
  13. }

代码示例来源：origin: net.sf.ehcache/ehcache

  1. /**
  2.  * @return a copy of the cache Elements as a Map
  3.  */
  4. public final Map toMap() {
  5.   try {
  6.     Map result = new HashMap();
  7.     for (Object key : cache.getKeys()) {
  8.       Element e = cache.get(key);
  9.       if (e != null) {
  10.         result.put(key, e.getObjectValue());
  11.       }
  12.     }
  13.     return result;
  14.   } catch (Exception e) {
  15.     throw new CacheException(e);
  16.   }
  17. }

代码示例来源：origin: javamelody/javamelody

  1. this.cacheKeys = cache.getKeys();
  2. } else {
  3.   this.cacheKeys = null;

代码示例来源：origin: net.sf.ehcache/ehcache

  1. /**
  2.  * {@inheritDoc}
  3.  */
  4. public Map toMap() {
  5.   try {
  6.     Map<Object, Object> result = new HashMap<Object, Object>();
  7.     for (Object key : cache.getKeys()) {
  8.       Element e = cache.get(key);
  9.       if (e != null) {
  10.         result.put(key, e.getObjectValue());
  11.       }
  12.     }
  13.     return result;
  14.   } catch (Exception e) {
  15.     if (e instanceof NonStopCacheException) {
  16.       HibernateNonstopCacheExceptionHandler.getInstance().handleNonstopCacheException((NonStopCacheException) e);
  17.       return Collections.emptyMap();
  18.     } else {
  19.       throw new CacheException(e);
  20.     }
  21.   }
  22. }

代码示例来源：origin: org.apache.servicemix.bundles/org.apache.servicemix.bundles.ehcache

  1. /**
  2.  * {@inheritDoc}
  3.  */
  4. public List getKeys() throws IllegalStateException, CacheException {
  5.   return underlyingCache.getKeys();
  6. }

代码示例来源：origin: net.sf.ehcache/ehcache-explicitlocking

  1. /**
  2.  * Returns the keys for this cache.
  3.  * 
  4.  * @return a list of {@link Object} keys for this cache. This is not a live set, so it will not track changes to the key set.
  5.  */
  6. public List getKeys() throws CacheException {
  7.   return cache.getKeys();
  8. }

代码示例来源：origin: DSpace/DSpace

  1. public List<String> getKeys() {
  2.   ArrayList<String> keys = new ArrayList<String>();
  3.   List<?> eKeys = cache.getKeys();
  4.   for (Object object : eKeys) {
  5.     if (object != null) {
  6.       keys.add(object.toString());
  7.     }
  8.   }
  9.   return keys;
  10. }

代码示例来源：origin: org.dspace/dspace-services

  1. public List<String> getKeys() {
  2.   ArrayList<String> keys = new ArrayList<String>();
  3.   List<?> eKeys = cache.getKeys();
  4.   for (Object object : eKeys) {
  5.     if (object != null) {
  6.       keys.add(object.toString());
  7.     }
  8.   }
  9.   return keys;
  10. }

代码示例来源：origin: net.sf.ehcache/ehcache-openjpa

  1. /**
  2.  *
  3.  * @return
  4.  */
  5. @Override
  6. protected Collection keySet() {
  7.   Ehcache cache = getOrCreateCache(cacheName);
  8.   return cache.getKeys();
  9. }

代码示例来源：origin: huangjian888/jeeweb-mybatis-springboot

  1. @Override
  2. public Set keys() {
  3.   if (springCache.getNativeCache() instanceof Ehcache) {
  4.     Ehcache ehcache = (Ehcache) springCache.getNativeCache();
  5.     return new HashSet(ehcache.getKeys());
  6.   }
  7.   throw new UnsupportedOperationException("invoke spring cache abstract keys method not supported");
  8. }

代码示例来源：origin: cn.jeeweb/jeeweb-common-security

  1. @Override
  2. public Set keys() {
  3.   if (springCache.getNativeCache() instanceof Ehcache) {
  4.     Ehcache ehcache = (Ehcache) springCache.getNativeCache();
  5.     return new HashSet(ehcache.getKeys());
  6.   }
  7.   throw new UnsupportedOperationException("invoke spring cache abstract keys method not supported");
  8. }

代码示例来源：origin: se.vgregion.commons-util/commons-util-core-bc-composite-svc-ldap

  1. @Override
  2.   public void run() {
  3.     final List keys = cache.getKeys();
  4.     for (Object key : keys) {
  5.       final Element element1 = cache.get(key);
  6.       if (element1 == null || element1.getObjectValue() == null
  7.           || ((LdapUser) element1.getValue()).getDn() == null) {
  8.         cache.remove(key);
  9.       }
  10.     }
  11.   }
  12. }, delay, TimeUnit.SECONDS);

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