Examples of CacheWriter

com.gemstone.gemfire.cache.CacheWriter
net.sf.ehcache.writer.CacheWriter
A CacheWriter is an interface used for write-through and write-behind caching to a underlying resource.
If configured for a cache, CacheWriter's methods will be called on a cache operation. A cache put will cause a CacheWriter write and a cache remove will cause a writer delete.
Implementers should create an implementation which handles storing and deleting to an underlying resource.

Write-Through
In write-through mode, the cache operation will occur and the writer operation will occur before CacheEventListeners are notified. If the write operation fails an exception will be thrown. This can result in a cache which is inconsistent with the underlying resource. To avoid this, the cache and the underlying resource should be configured to participate in a transaction. In the event of a failure a rollback can return all components to a consistent state.

Write-Behind
In write-behind mode, writes are written to a write-behind queue. They are written by a separate execution thread in a configurable way. When used with Terracotta Server Array, the queue is highly available. In addition any node in the cluster may perform the write-behind operations.
It's important to note that the operations that are handled by the {@code CacheWriter} don't have any guaranteed ordering in write-behind mode.The processing ordering can be different than the scheduling ordering, so your application needs to be written with this in mind. More information in the CacheWriter chapter of the documentation.

Creation and Configuration
CacheWriters can be created using the CacheWriterFactory or explicitly by instantiating them through Java code, giving you access to local resources.
The manner upon which a CacheWriter is actually called is determined by the {@link net.sf.ehcache.config.CacheWriterConfiguration} that is set up for cachethat is using the CacheWriter.
See the CacheWriter chapter in the documentation for more information on how to use writers. @author Greg Luck @author Geert Bevin @version $Id: CacheWriter.java 2521 2010-06-23 10:53:48Z gbevin $
org.infinispan.persistence.spi.CacheWriter
Allows persisting data to an external storage, as opposed to the {@link CacheLoader}. @author Mircea Markus @since 6.0
org.jitterbit.integration.client.structure.cache.CacheWriter
Utility class for writing input and output structures to an InputAndOutputMappingTreeStructureCache. @author Torgil Zethson @since 4.0.0

Examples of com.gemstone.gemfire.cache.CacheWriter

      }
    });


    when(regionFactory.setCacheWriter(any(CacheWriter.class))).thenAnswer(new Answer<RegionFactory>(){
      @Override public RegionFactory answer(InvocationOnMock invocation) throws Throwable {
        CacheWriter cacheWriter = (CacheWriter) invocation.getArguments()[0];
        attributesFactory.setCacheWriter(cacheWriter);
        return regionFactory;
      }
    });

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Examples of net.sf.ehcache.writer.CacheWriter

    /**
     * {@inheritDoc}
     */
    public void put(Element element) throws CacheException {
        try {
            CacheWriter writer = cache.getRegisteredCacheWriter();
            if (writer != null) {
                writer.write(element);
            }
        } catch (RuntimeException e) {
            throw new CacheWriterManagerException(e);
        }
    }

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Examples of org.infinispan.persistence.spi.CacheWriter


            Set undelegated = new HashSet();//black magic to make sure the store start only gets invoked once
            for (CacheWriter w : writers) {
               w.start();
               if (w instanceof DelegatingCacheWriter) {
                  CacheWriter actual = undelegate(w);
                  actual.start();
                  undelegated.add(actual);
               } else {
                  undelegated.add(w);
               }


               if (configMap.get(w).purgeOnStartup()) {
                  if (!(w instanceof AdvancedCacheWriter))
                     throw new PersistenceException("'purgeOnStartup' can only be set on stores implementing " +
                                                          "" + AdvancedCacheWriter.class.getName());
                  ((AdvancedCacheWriter) w).clear();
               }
            }


            for (CacheLoader l : loaders) {
               if (!undelegated.contains(l))
                  l.start();
               if (l instanceof DelegatingCacheLoader) {
                  CacheLoader actual = undelegate(l);
                  if (!undelegated.contains(actual)) {
                     actual.start();
                  }
               }
            }
         } finally {
            if (xaTx != null) {

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Examples of org.infinispan.persistence.spi.CacheWriter


      Set undelegated = new HashSet();
      for (CacheWriter w : writers) {
         w.stop();
         if (w instanceof DelegatingCacheWriter) {
            CacheWriter actual = undelegate(w);
            actual.stop();
            undelegated.add(actual);
         } else {
            undelegated.add(w);
         }
      }


      for (CacheLoader l : loaders) {
         if (!undelegated.contains(l))
            l.stop();
         if (l instanceof DelegatingCacheLoader) {
            CacheLoader actual = undelegate(l);
            if (!undelegated.contains(actual)) {
               actual.stop();
            }
         }
      }


   }

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Examples of org.infinispan.persistence.spi.CacheWriter

               if (undelegate(l).getClass().getName().equals(storeType))
                  clIt.remove();
            }
            Iterator<CacheWriter> cwIt = writers.iterator();
            while (cwIt.hasNext()) {
               CacheWriter w = cwIt.next();
               if (undelegate(w).getClass().getName().equals(storeType))
                  cwIt.remove();
            }
         } finally {
            storesMutex.writeLock().unlock();

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Examples of org.infinispan.persistence.spi.CacheWriter

            if (storeClass.isInstance(real)) {
               result.add((T) real);
            }
         }
         for (CacheWriter w : writers) {
            CacheWriter real = undelegate(w);
            if (storeClass.isInstance(real))
               result.add((T) real);
         }
         return result;
      } finally {

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Examples of org.infinispan.persistence.spi.CacheWriter

         }
         if (classAnnotation == null) {
            throw log.loaderConfigurationDoesNotSpecifyLoaderClass(cfg.getClass().getName());
         }
         Object instance = Util.getInstance(classAnnotation);
         CacheWriter writer = instance instanceof CacheWriter ? (CacheWriter) instance : null;
         CacheLoader loader = instance instanceof CacheLoader ? (CacheLoader) instance : null;




         if (cfg.ignoreModifications())
            writer = null;


         if (cfg.singletonStore().enabled() && writer != null) {
            writer = (writer instanceof AdvancedCacheWriter) ?
                  new AdvancedSingletonCacheWriter(writer, cfg.singletonStore()) :
                  new SingletonCacheWriter(writer, cfg.singletonStore());
         }


         if (cfg.async().enabled() && writer != null) {
            writer = createAsyncWriter(writer);
            if (loader != null) {
               AtomicReference<State> state = ((AsyncCacheWriter) writer).getState();
               loader = (loader instanceof AdvancedCacheLoader) ?
                     new AdvancedAsyncCacheLoader(loader, state) : new AsyncCacheLoader(loader, state);
            }
         }


         InitializationContextImpl ctx = new InitializationContextImpl(cfg, cache, m, timeService, byteBufferFactory,
                                                                       marshalledEntryFactory);
         if (loader != null) {
            if (loader instanceof DelegatingCacheLoader)
               loader.init(ctx);
            loaders.add(loader);
            configMap.put(loader, cfg);
         }
         if (writer != null) {
            if (writer instanceof DelegatingCacheWriter)
               writer.init(ctx);
            writers.add(writer);
            configMap.put(writer, cfg);
         }


         //the delegates only propagate init if the underlaying object is a delegate as well.

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Examples of org.infinispan.persistence.spi.CacheWriter


            Set undelegated = new HashSet();//black magic to make sure the store start only gets invoked once
            for (CacheWriter w : writers) {
               w.start();
               if (w instanceof DelegatingCacheWriter) {
                  CacheWriter actual = undelegate(w);
                  actual.start();
                  undelegated.add(actual);
               } else {
                  undelegated.add(w);
               }


               if (configMap.get(w).purgeOnStartup()) {
                  if (!(w instanceof AdvancedCacheWriter))
                     throw new CacheLoaderException("'purgeOnStartup' can only be set on stores implementing " +
                                                          "" + AdvancedCacheWriter.class.getName());
                  ((AdvancedCacheWriter) w).clear();
               }
            }


            for (CacheLoader l : loaders) {
               if (!undelegated.contains(l))
                  l.start();
               if (l instanceof DelegatingCacheLoader) {
                  CacheLoader actual = undelegate(l);
                  if (!undelegated.contains(actual)) {
                     actual.start();
                  }
               }
            }
         } finally {
            if (xaTx != null) {

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Examples of org.infinispan.persistence.spi.CacheWriter


      Set undelegated = new HashSet();
      for (CacheWriter w : writers) {
         w.stop();
         if (w instanceof DelegatingCacheWriter) {
            CacheWriter actual = undelegate(w);
            actual.stop();
            undelegated.add(actual);
         } else {
            undelegated.add(w);
         }
      }


      for (CacheLoader l : loaders) {
         if (!undelegated.contains(l))
            l.stop();
         if (l instanceof DelegatingCacheLoader) {
            CacheLoader actual = undelegate(l);
            if (!undelegated.contains(actual)) {
               actual.stop();
            }
         }
      }


   }

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Examples of org.infinispan.persistence.spi.CacheWriter

               if (undelegate(l).getClass().getName().equals(storeType))
                  clIt.remove();
            }
            Iterator<CacheWriter> cwIt = writers.iterator();
            while (cwIt.hasNext()) {
               CacheWriter w = cwIt.next();
               if (undelegate(w).getClass().getName().equals(storeType))
                  cwIt.remove();
            }
         } finally {
            storesMutex.writeLock().unlock();

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Examples of CacheWriter

Write-Through

Write-Behind

Creation and Configuration

Examples of com.gemstone.gemfire.cache.CacheWriter

Examples of net.sf.ehcache.writer.CacheWriter

Examples of org.infinispan.persistence.spi.CacheWriter

Examples of org.infinispan.persistence.spi.CacheWriter

Examples of org.infinispan.persistence.spi.CacheWriter

Examples of org.infinispan.persistence.spi.CacheWriter

Examples of org.infinispan.persistence.spi.CacheWriter

Examples of org.infinispan.persistence.spi.CacheWriter

Examples of org.infinispan.persistence.spi.CacheWriter

Examples of org.infinispan.persistence.spi.CacheWriter