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

Ehcache.acquireWriteLockOnKey介绍

[英]Acquires the proper write lock for a given cache key
[中]获取给定缓存密钥的正确写锁

代码示例

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

  1. @SuppressWarnings("unchecked")
  2. @Override
  3. @Nullable
  4. public <T> T get(Object key, Callable<T> valueLoader) {
  5.   Element element = lookup(key);
  6.   if (element != null) {
  7.     return (T) element.getObjectValue();
  8.   }
  9.   else {
  10.     this.cache.acquireWriteLockOnKey(key);
  11.     try {
  12.       element = lookup(key);  // one more attempt with the write lock
  13.       if (element != null) {
  14.         return (T) element.getObjectValue();
  15.       }
  16.       else {
  17.         return loadValue(key, valueLoader);
  18.       }
  19.     }
  20.     finally {
  21.       this.cache.releaseWriteLockOnKey(key);
  22.     }
  23.   }
  24. }

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

  1. @SuppressWarnings("unchecked")
  2. @Override
  3. @Nullable
  4. public <T> T get(Object key, Callable<T> valueLoader) {
  5.   Element element = lookup(key);
  6.   if (element != null) {
  7.     return (T) element.getObjectValue();
  8.   }
  9.   else {
  10.     this.cache.acquireWriteLockOnKey(key);
  11.     try {
  12.       element = lookup(key);  // one more attempt with the write lock
  13.       if (element != null) {
  14.         return (T) element.getObjectValue();
  15.       }
  16.       else {
  17.         return loadValue(key, valueLoader);
  18.       }
  19.     }
  20.     finally {
  21.       this.cache.releaseWriteLockOnKey(key);
  22.     }
  23.   }
  24. }

代码示例来源：origin: apache/kylin

  1. @Override
  2. @SuppressWarnings("unchecked")
  3. public <T> T get(Object key, Callable<T> valueLoader) {
  4.   Element element = lookup(key);
  5.   if (element != null) {
  6.     return (T) element.getObjectValue();
  7.   } else {
  8.     this.cache.acquireWriteLockOnKey(key);
  9.     try {
  10.       element = lookup(key); // One more attempt with the write lock
  11.       if (element != null) {
  12.         return (T) element.getObjectValue();
  13.       } else {
  14.         return loadValue(key, valueLoader);
  15.       }
  16.     } finally {
  17.       this.cache.releaseWriteLockOnKey(key);
  18.     }
  19.   }
  20. }

代码示例来源：origin: net.sf.ehcache/ehcache

  1. /**
  2.  * {@inheritDoc}
  3.  */
  4. public void acquireWriteLockOnKey(Object key) {
  5.   underlyingCache.acquireWriteLockOnKey(key);
  6. }

代码示例来源：origin: net.sf.ehcache/ehcache

  1. /**
  2. * {@inheritDoc}
  3. */
  4. public void acquireWriteLockOnKey(Object arg0) {
  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.     this.cache.acquireWriteLockOnKey(arg0);
  11.   } finally {
  12.     t.setContextClassLoader(prev);
  13.   }
  14. }

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

  1. /**
  2.  * {@inheritDoc}
  3.  */
  4. public void acquireWriteLockOnKey(Object key) {
  5.   underlyingCache.acquireWriteLockOnKey(key);
  6. }

代码示例来源：origin: org.sonatype.nexus.bundles/org.sonatype.nexus.bundles.ehcache

  1. /**
  2.  * {@inheritDoc}
  3.  */
  4. public void acquireWriteLockOnKey(Object key) {
  5.   underlyingCache.acquireWriteLockOnKey(key);
  6. }

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

  1. /**
  2.  * {@inheritDoc}
  3.  */
  4. public void acquireWriteLockOnKey(Object key) {
  5.   underlyingCache.acquireWriteLockOnKey(key);
  6. }

代码示例来源：origin: suninformation/ymate-platform-v2

  1. @Override
  2. public void writeLock(Object key) {
  3.   __ehcache.acquireWriteLockOnKey(key);
  4. }

代码示例来源：origin: org.sonatype.nexus.bundles/org.sonatype.nexus.bundles.ehcache

  1. /**
  2. * {@inheritDoc}
  3. */
  4. public void acquireWriteLockOnKey(Object arg0) {
  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.     this.cache.acquireWriteLockOnKey(arg0);
  11.   } finally {
  12.     t.setContextClassLoader(prev);
  13.   }
  14. }

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

  1. /**
  2. * {@inheritDoc}
  3. */
  4. public void acquireWriteLockOnKey(Object arg0) {
  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.     this.cache.acquireWriteLockOnKey(arg0);
  11.   } finally {
  12.     t.setContextClassLoader(prev);
  13.   }
  14. }

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

  1. /**
  2. * {@inheritDoc}
  3. */
  4. public void acquireWriteLockOnKey(Object arg0) {
  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.     this.cache.acquireWriteLockOnKey(arg0);
  11.   } finally {
  12.     t.setContextClassLoader(prev);
  13.   }
  14. }

代码示例来源：origin: ehcache/ehcache-jcache

  1. @Override
  2. public V getAndRemove(final K key) {
  3.   checkNotClosed();
  4.   if(key == null) throw new NullPointerException();
  5.   ehcache.acquireWriteLockOnKey(key);
  6.   try {
  7.     Element previousElement;
  8.     previousElement = ehcache.get(key);
  9.     removeAndWriteIfNeeded(key);
  10.     return previousElement == null ? null : (V) previousElement.getObjectValue();
  11.   } finally {
  12.     ehcache.releaseWriteLockOnKey(key);
  13.   }
  14. }

代码示例来源：origin: org.ehcache/jcache

  1. @Override
  2. public V getAndRemove(final K key) {
  3.   checkNotClosed();
  4.   if(key == null) throw new NullPointerException();
  5.   ehcache.acquireWriteLockOnKey(key);
  6.   try {
  7.     Element previousElement;
  8.     previousElement = ehcache.get(key);
  9.     removeAndWriteIfNeeded(key);
  10.     return previousElement == null ? null : (V) previousElement.getObjectValue();
  11.   } finally {
  12.     ehcache.releaseWriteLockOnKey(key);
  13.   }
  14. }

代码示例来源：origin: apache/servicemix-bundles

  1. @SuppressWarnings("unchecked")
  2. @Override
  3. public <T> T get(Object key, Callable<T> valueLoader) {
  4.   Element element = lookup(key);
  5.   if (element != null) {
  6.     return (T) element.getObjectValue();
  7.   }
  8.   else {
  9.     this.cache.acquireWriteLockOnKey(key);
  10.     try {
  11.       element = lookup(key);  // one more attempt with the write lock
  12.       if (element != null) {
  13.         return (T) element.getObjectValue();
  14.       }
  15.       else {
  16.         return loadValue(key, valueLoader);
  17.       }
  18.     }
  19.     finally {
  20.       this.cache.releaseWriteLockOnKey(key);
  21.     }
  22.   }
  23. }

代码示例来源：origin: org.ehcache/jcache

  1. @Override
  2. public void remove() {
  3.   if(current == null) {
  4.     throw new IllegalStateException();
  5.   }
  6.   jCache.ehcache.acquireWriteLockOnKey(current.getKey());
  7.   try {
  8.     final Element element = jCache.ehcache.getQuiet(current.getKey());
  9.     if(element != null && element.getObjectValue().equals(current.getValue())) {
  10.       jCache.removeAndWriteIfNeeded(current.getKey());
  11.     }
  12.   } finally {
  13.     jCache.ehcache.releaseWriteLockOnKey(current.getKey());
  14.   }
  15. }

代码示例来源：origin: ehcache/ehcache-jcache

  1. @Override
  2. public void remove() {
  3.   if(current == null) {
  4.     throw new IllegalStateException();
  5.   }
  6.   jCache.ehcache.acquireWriteLockOnKey(current.getKey());
  7.   try {
  8.     final Element element = jCache.ehcache.getQuiet(current.getKey());
  9.     if(element != null && element.getObjectValue().equals(current.getValue())) {
  10.       jCache.removeAndWriteIfNeeded(current.getKey());
  11.     }
  12.   } finally {
  13.     jCache.ehcache.releaseWriteLockOnKey(current.getKey());
  14.   }
  15. }

代码示例来源：origin: org.ehcache/jcache

  1. @Override
  2. public boolean putIfAbsent(final K key, final V value) {
  3.   checkNotClosed();
  4.   if(key == null) throw new NullPointerException();
  5.   if(value == null) throw new NullPointerException();
  6.   ehcache.acquireWriteLockOnKey(key);
  7.   try {
  8.     if (!ehcache.isKeyInCache(key)) {
  9.       final Element element = new Element(key, value);
  10.       final Duration expiryForCreation;
  11.       expiryForCreation = cfg.getExpiryPolicy().getExpiryForCreation();
  12.       if(setTimeTo(cfg.overrideDefaultExpiry(), expiryForCreation, element)) {
  13.         putAndWriteIfNeeded(element);
  14.       }
  15.       return true;
  16.     }
  17.   } finally {
  18.     ehcache.releaseWriteLockOnKey(key);
  19.   }
  20.   return false;
  21. }

代码示例来源：origin: org.ehcache/jcache

  1. void putWithoutWriter(final K key, final V value) {
  2.   checkNotClosed();
  3.   if(key == null) throw new NullPointerException();
  4.   if(value == null) throw new NullPointerException();
  5.   ehcache.acquireWriteLockOnKey(key);
  6.   try {
  7.     final Duration expiry;
  8.     final boolean inCache = ehcache.isKeyInCache(key);
  9.     if(inCache) {
  10.       expiry = cfg.getExpiryPolicy().getExpiryForUpdate();
  11.     } else {
  12.       expiry = cfg.getExpiryPolicy().getExpiryForCreation();
  13.     }
  14.     final Element element = new Element(key, value);
  15.     if(setTimeTo(cfg.overrideDefaultExpiry(), expiry, element)) {
  16.       ehcache.put(element);
  17.     } else if(inCache) {
  18.       ehcache.remove(key);
  19.     }
  20.   } finally {
  21.     ehcache.releaseWriteLockOnKey(key);
  22.   }
  23. }

代码示例来源：origin: ehcache/ehcache-jcache

  1. private boolean removeAndWriteIfNeeded(final K key) {
  2.   if (cfg.isWriteThrough()) {
  3.     ehcache.acquireWriteLockOnKey(key);
  4.     final Element previous = ehcache.getQuiet(key);
  5.     try {
  6.       return ehcache.removeWithWriter(key);
  7.     } catch (RuntimeException e) {
  8.       if(previous != null) {
  9.         ehcache.putQuiet(previous);
  10.       }
  11.       throw new CacheWriterException(e);
  12.     }
  13.   } else {
  14.     if (ehcache.isKeyInCache(key)) {
  15.       return ehcache.remove(key);
  16.     }
  17.     return false;
  18.   }
  19. }

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