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This is the ehcache core module. Pair it with other modules for added functionality.
/**
* Copyright Terracotta, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.sf.ehcache.management.sampled;
import java.util.Map;
/**
* An abstraction for sampled cache manager usage statistics.
*
* @author Abhishek Sanoujam
* @author byoukste
*/
public interface CacheManagerSampler {
/**
* Gets the actual name of the cache manager.
*/
String getName();
/**
* Gets the cluster uuid if applicable.
*
* @return the cluster uuid
*/
String getClusterUUID();
/**
* Gets the status attribute of the Ehcache
*
* @return The status value, as a String from the Status enum class
*/
String getStatus();
/**
* Enables/disables each cache contained by this CacheManager
*
* @param enabled
*/
void setEnabled(boolean enabled);
/**
* Returns if each cache is enabled.
*
* @return boolean indicating that each cache is enabled
*/
boolean isEnabled();
/**
* Shuts down the CacheManager.
*
* If the shutdown occurs on the singleton, then the singleton is removed, so that if a singleton access method is called, a new
* singleton will be created.
*/
void shutdown();
/**
* Clears the contents of all caches in the CacheManager, but without
* removing any caches.
*
* This method is not synchronized. It only guarantees to clear those elements in a cache at the time that the
* {@link net.sf.ehcache.Ehcache#removeAll()} mehod on each cache is called.
*/
void clearAll();
/**
* Gets the cache names managed by the CacheManager
*/
String[] getCacheNames() throws IllegalStateException;
/**
* Get a map of cache name to performance metrics (hits, misses).
*
* @return a map of cache metrics
*/
Map getCacheMetrics();
/**
* @return aggregate hit rate
*/
long getCacheHitRate();
/**
* @return aggregate in-memory hit rate
*/
long getCacheInMemoryHitRate();
/**
* @return aggregate off-heap hit rate
*/
long getCacheOffHeapHitRate();
/**
* @return aggregate on-disk hit rate
*/
long getCacheOnDiskHitRate();
/**
* @return aggregate miss rate
*/
long getCacheMissRate();
/**
* @return aggregate in-memory miss rate
*/
long getCacheInMemoryMissRate();
/**
* @return aggregate off-heap miss rate
*/
long getCacheOffHeapMissRate();
/**
* @return aggregate on-disk miss rate
*/
long getCacheOnDiskMissRate();
/**
* @return aggregate put rate
*/
long getCachePutRate();
/**
* @return aggregate update rate
*/
long getCacheUpdateRate();
/**
* @return aggregate remove rate
*/
long getCacheRemoveRate();
/**
* @return aggregate eviction rate
*/
long getCacheEvictionRate();
/**
* @return aggregate expiration rate
*/
long getCacheExpirationRate();
/**
* @return aggregate average get time (ms.)
*/
float getCacheAverageGetTime();
/**
* @return if any contained caches are configured for search
*/
boolean getSearchable();
/**
* @return aggregate search rate
*/
long getCacheSearchRate();
/**
* @return aggregate search time
*/
long getCacheAverageSearchTime();
/**
* Clears statistics of all caches for the associated cacheManager
*/
void clearStatistics();
/**
* Enable statistics for each cache contained by cacheManager
*/
void enableStatistics();
/**
* Disable statistics for each cache contained by cacheManager
*/
void disableStatistics();
/**
* Enables/disables each contained cache
*/
void setStatisticsEnabled(boolean enabled);
/**
* Returns true iff each contained cache has statistics enabled
*/
boolean isStatisticsEnabled();
/**
* generateActiveConfigDeclaration
*
* @return CacheManager configuration as String
*/
String generateActiveConfigDeclaration();
/**
* generateActiveConfigDeclaration
*
* @param cacheName
* @return Cache configuration as String
*/
String generateActiveConfigDeclaration(String cacheName);
/**
* Are any of the caches transactional
*
* @see net.sf.ehcache.config.CacheConfiguration.TransactionalMode
*/
boolean getTransactional();
/**
* Get the committed transactions count
*
* @return the committed transactions count
*/
long getTransactionCommittedCount();
/**
* @return aggregate Xa commit rate
*/
long getTransactionCommitRate();
/**
* Get the rolled back transactions count
*
* @return the rolled back transactions count
*/
long getTransactionRolledBackCount();
/**
* @return aggregate Xa rollback rate
*/
long getTransactionRollbackRate();
/**
* Get the timed out transactions count. Note that only transactions which failed to
* commit due to a timeout are taken into account
*
* @return the timed out transactions count
*/
long getTransactionTimedOutCount();
/**
* Returns whether any caches are configured for write-behind
*/
boolean getHasWriteBehindWriter();
/**
* Returns the total length of all write-behind queues across all caches
*
* @return aggregate writer-behind queue length
*/
long getWriterQueueLength();
/**
* Maximum elements that can be queued for processing by the write-behind writer
*
* @return aggregate of the maximum elements that can be waiting to be processed
* by the write-behind writer across all caches
*/
int getWriterMaxQueueSize();
/**
* Maximum number of bytes of entries in the disk stores of all caches that
* did not declare their own max size.
*
* @return maximum number of bytes in the disk stores of all caches that
* did not declare their own max size.
*/
long getMaxBytesLocalDisk();
/**
* @param maxBytes
*/
void setMaxBytesLocalDisk(long maxBytes);
/**
* @param maxBytes
*/
void setMaxBytesLocalDiskAsString(String maxBytes);
/**
* @return Original input for maxBytesLocalDisk
*/
String getMaxBytesLocalDiskAsString();
/**
* Maximum number of bytes of entries in the heap memory stores of all caches that
* did not declare their own max size.
*
* @return maximum number of bytes in the heap memory stores of all caches that
* did not declare their own max size.
*/
long getMaxBytesLocalHeap();
/**
* @return Original input for maxBytesLocalHeap
*/
String getMaxBytesLocalHeapAsString();
/**
* @param maxBytes
*/
void setMaxBytesLocalHeap(long maxBytes);
/**
* @param maxBytes
*/
void setMaxBytesLocalHeapAsString(String maxBytes);
/**
* Maximum number of bytes of entries in the off-heap stores of all caches that
* did not declare their own max size.
*
* @return maximum number of bytes in the off-heap stores of all caches that
* did not declare their own max size.
*/
long getMaxBytesLocalOffHeap();
/**
* @return Original input for maxBytesLocalOffHeap
*/
String getMaxBytesLocalOffHeapAsString();
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