All Superinterfaces:

Serializable, Service, Statistics

All Known Implementing Classes:

StatisticsImpl
```
public interface StatisticsImplementor
extends Statistics, Service
```
A service SPI for collecting statistics about various events that occur at runtime.

Field Summary
- Fields inherited from interface org.hibernate.stat.Statistics
  DEFAULT_QUERY_STATISTICS_MAX_SIZE

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`void`	`closeSession()`	Callback about a session being closed.
`void`	`closeStatement()`	Callback about a statement being closed.
`void`	`collectionCacheHit(NavigableRole collectionRole, String regionName)`	Callback indicating a get from second level cache resulted in a hit.
`void`	`collectionCacheMiss(NavigableRole collectionRole, String regionName)`	Callback indicating a get from second level cache resulted in a miss.
`void`	`collectionCachePut(NavigableRole collectionRole, String regionName)`	Callback indicating a put into second level cache.
`void`	`connect()`	Callback about a connection being obtained from `ConnectionProvider`
`void`	`deleteEntity(String entityName)`	Callback about an entity being deleted.
`void`	`endTransaction(boolean success)`	Callback about a transaction completing.
`void`	`entityCacheHit(NavigableRole entityName, String regionName)`	Callback indicating a get from second level cache resulted in a hit.
`void`	`entityCacheMiss(NavigableRole entityName, String regionName)`	Callback indicating a get from second level cache resulted in a miss.
`void`	`entityCachePut(NavigableRole entityName, String regionName)`	Callback indicating a put into second level cache.
`void`	`fetchCollection(String role)`	Callback to indicate a collection being fetched.
`void`	`fetchEntity(String entityName)`	Callback about an entity being fetched.
`void`	`flush()`	Callback about a flush occurring
`default Map<String,Long>`	`getSlowQueries()`	If "hibernate.log_slow_query" is enabled, a map from the SQL query to the maximum execution time in milliseconds.
`void`	`insertEntity(String entityName)`	Callback about an entity being inserted
`void`	`loadCollection(String role)`	Callback about a collection loading.
`void`	`loadEntity(String entityName)`	Callback about an entity being loaded.
`void`	`naturalIdCacheHit(NavigableRole rootEntityName, String regionName)`	Callback indicating a get from natural id cache resulted in a hit.
`void`	`naturalIdCacheMiss(NavigableRole rootEntityName, String regionName)`	Callback indicating a get from natural id cache resulted in a miss.
`void`	`naturalIdCachePut(NavigableRole rootEntityName, String regionName)`	Callback indicating a put into natural id cache.
`void`	`naturalIdQueryExecuted(String rootEntityName, long executionTime)`	Callback indicating execution of a natural id query
`void`	`openSession()`	Callback about a session being opened.
`void`	`optimisticFailure(String entityName)`	Callback about an optimistic lock failure on an entity
`void`	`prepareStatement()`	Callback about a statement being prepared.
`void`	`queryCacheHit(String hql, String regionName)`	Callback indicating a get from the query cache resulted in a hit.
`void`	`queryCacheMiss(String hql, String regionName)`	Callback indicating a get from the query cache resulted in a miss.
`void`	`queryCachePut(String hql, String regionName)`	Callback indicating a put into the query cache.
`default void`	`queryCompiled(String hql, long microseconds)`	Callback indicating compilation of a sql/hql query
`void`	`queryExecuted(String hql, int rows, long time)`	Callback indicating execution of a sql/hql query
`default void`	`queryPlanCacheHit(String query)`	Callback indicating a get from the query plan cache resulted in a hit.
`default void`	`queryPlanCacheMiss(String query)`	Callback indicating a get from the query plan cache resulted in a miss.
`void`	`recreateCollection(String role)`	Callback indicating a collection recreation (full deletion + full (re-)insertion).
`void`	`removeCollection(String role)`	Callback indicating a collection removal.
`default void`	`slowQuery(String sql, long executionTime)`	Register the execution of a slow SQL query.
`void`	`updateCollection(String role)`	Callback indicating a collection was updated.
`void`	`updateEntity(String entityName)`	Callback about an entity being updated.
`void`	`updateTimestampsCacheHit()`	Callback indicating a hit to the timestamp cache
`void`	`updateTimestampsCacheMiss()`	Callback indicating a miss to the timestamp cache
`void`	`updateTimestampsCachePut()`	Callback indicating a put to the timestamp cache

Methods inherited from interface org.hibernate.stat.Statistics
clear, getCacheRegionStatistics, getCloseStatementCount, getCollectionFetchCount, getCollectionLoadCount, getCollectionRecreateCount, getCollectionRemoveCount, getCollectionRoleNames, getCollectionStatistics, getCollectionUpdateCount, getConnectCount, getDomainDataRegionStatistics, getEntityDeleteCount, getEntityFetchCount, getEntityInsertCount, getEntityLoadCount, getEntityNames, getEntityStatistics, getEntityUpdateCount, getFlushCount, getNaturalIdCacheHitCount, getNaturalIdCacheMissCount, getNaturalIdCachePutCount, getNaturalIdQueryExecutionCount, getNaturalIdQueryExecutionMaxTime, getNaturalIdQueryExecutionMaxTimeEntity, getNaturalIdQueryExecutionMaxTimeRegion, getNaturalIdStatistics, getOptimisticFailureCount, getPrepareStatementCount, getQueries, getQueryCacheHitCount, getQueryCacheMissCount, getQueryCachePutCount, getQueryExecutionCount, getQueryExecutionMaxTime, getQueryExecutionMaxTimeQueryString, getQueryPlanCacheHitCount, getQueryPlanCacheMissCount, getQueryRegionStatistics, getQueryStatistics, getSecondLevelCacheHitCount, getSecondLevelCacheMissCount, getSecondLevelCachePutCount, getSecondLevelCacheRegionNames, getSessionCloseCount, getSessionOpenCount, getStart, getStartTime, getSuccessfulTransactionCount, getTransactionCount, getUpdateTimestampsCacheHitCount, getUpdateTimestampsCacheMissCount, getUpdateTimestampsCachePutCount, isStatisticsEnabled, logSummary, setStatisticsEnabled

- Method Detail
  - openSession
```
void openSession()
```
    Callback about a session being opened.
  - closeSession
```
void closeSession()
```
    Callback about a session being closed.
  - flush
```
void flush()
```
    Callback about a flush occurring
  - connect
```
void connect()
```
    Callback about a connection being obtained from ConnectionProvider
  - prepareStatement
```
void prepareStatement()
```
    Callback about a statement being prepared.
  - closeStatement
```
void closeStatement()
```
    Callback about a statement being closed.
  - endTransaction
```
void endTransaction(boolean success)
```
    Callback about a transaction completing.
    
    Parameters:
    
    success - Was the transaction successful?
  - loadEntity
```
void loadEntity(String entityName)
```
    Callback about an entity being loaded. This might indicate a proxy or a fully initialized entity, but in either case it means without a separate SQL query being needed.
    
    Parameters:
    
    entityName - The name of the entity loaded.
  - fetchEntity
```
void fetchEntity(String entityName)
```
    Callback about an entity being fetched. Unlike loadEntity(java.lang.String) this indicates a separate query being performed.
    
    Parameters:
    
    entityName - The name of the entity fetched.
  - updateEntity
```
void updateEntity(String entityName)
```
    Callback about an entity being updated.
    
    Parameters:
    
    entityName - The name of the entity updated.
  - insertEntity
```
void insertEntity(String entityName)
```
    Callback about an entity being inserted
    
    Parameters:
    
    entityName - The name of the entity inserted
  - deleteEntity
```
void deleteEntity(String entityName)
```
    Callback about an entity being deleted.
    
    Parameters:
    
    entityName - The name of the entity deleted.
  - optimisticFailure
```
void optimisticFailure(String entityName)
```
    Callback about an optimistic lock failure on an entity
    
    Parameters:
    
    entityName - The name of the entity.
  - loadCollection
```
void loadCollection(String role)
```
    Callback about a collection loading. This might indicate a lazy collection or an initialized collection being created, but in either case it means without a separate SQL query being needed.
    
    Parameters:
    
    role - The collection role.
  - fetchCollection
```
void fetchCollection(String role)
```
    Callback to indicate a collection being fetched. Unlike loadCollection(java.lang.String), this indicates a separate query was needed.
    
    Parameters:
    
    role - The collection role.
  - updateCollection
```
void updateCollection(String role)
```
    Callback indicating a collection was updated.
    
    Parameters:
    
    role - The collection role.
  - recreateCollection
```
void recreateCollection(String role)
```
    Callback indicating a collection recreation (full deletion + full (re-)insertion).
    
    Parameters:
    
    role - The collection role.
  - removeCollection
```
void removeCollection(String role)
```
    Callback indicating a collection removal.
    
    Parameters:
    
    role - The collection role.
  - entityCachePut
```
void entityCachePut(NavigableRole entityName,
                    String regionName)
```
    Callback indicating a put into second level cache.
    
    API Note:
    
    `entityName` should be the root entity name
  - entityCacheHit
```
void entityCacheHit(NavigableRole entityName,
                    String regionName)
```
    Callback indicating a get from second level cache resulted in a hit.
    
    API Note:
    
    `entityName` should be the root entity name
  - entityCacheMiss
```
void entityCacheMiss(NavigableRole entityName,
                     String regionName)
```
    Callback indicating a get from second level cache resulted in a miss.
    
    API Note:
    
    `entityName` should be the root entity name
  - collectionCachePut
```
void collectionCachePut(NavigableRole collectionRole,
                        String regionName)
```
    Callback indicating a put into second level cache.
    
    Parameters:
    
    collectionRole - The collection's "path"
    
    regionName - The name of the cache region
  - collectionCacheHit
```
void collectionCacheHit(NavigableRole collectionRole,
                        String regionName)
```
    Callback indicating a get from second level cache resulted in a hit.
    
    Parameters:
    
    collectionRole - The collection's "path"
    
    regionName - The name of the cache region
  - collectionCacheMiss
```
void collectionCacheMiss(NavigableRole collectionRole,
                         String regionName)
```
    Callback indicating a get from second level cache resulted in a miss.
    
    Parameters:
    
    collectionRole - The collection's "path"
    
    regionName - The name of the cache region
  - naturalIdCachePut
```
void naturalIdCachePut(NavigableRole rootEntityName,
                       String regionName)
```
    Callback indicating a put into natural id cache.
  - naturalIdCacheHit
```
void naturalIdCacheHit(NavigableRole rootEntityName,
                       String regionName)
```
    Callback indicating a get from natural id cache resulted in a hit.
  - naturalIdCacheMiss
```
void naturalIdCacheMiss(NavigableRole rootEntityName,
                        String regionName)
```
    Callback indicating a get from natural id cache resulted in a miss.
  - naturalIdQueryExecuted
```
void naturalIdQueryExecuted(String rootEntityName,
                            long executionTime)
```
    Callback indicating execution of a natural id query
  - queryCachePut
```
void queryCachePut(String hql,
                   String regionName)
```
    Callback indicating a put into the query cache.
    
    Parameters:
    
    hql - The query
    
    regionName - The cache region
  - queryCacheHit
```
void queryCacheHit(String hql,
                   String regionName)
```
    Callback indicating a get from the query cache resulted in a hit.
    
    Parameters:
    
    hql - The query
    
    regionName - The name of the cache region
  - queryCacheMiss
```
void queryCacheMiss(String hql,
                    String regionName)
```
    Callback indicating a get from the query cache resulted in a miss.
    
    Parameters:
    
    hql - The query
    
    regionName - The name of the cache region
  - queryExecuted
```
void queryExecuted(String hql,
                   int rows,
                   long time)
```
    Callback indicating execution of a sql/hql query
    
    Parameters:
    
    hql - The query
    
    rows - Number of rows returned
    
    time - execution time
  - updateTimestampsCacheHit
```
void updateTimestampsCacheHit()
```
    Callback indicating a hit to the timestamp cache
  - updateTimestampsCacheMiss
```
void updateTimestampsCacheMiss()
```
    Callback indicating a miss to the timestamp cache
  - updateTimestampsCachePut
```
void updateTimestampsCachePut()
```
    Callback indicating a put to the timestamp cache
  - queryPlanCacheHit
```
default void queryPlanCacheHit(String query)
```
    Callback indicating a get from the query plan cache resulted in a hit.
    
    Parameters:
    
    query - The query
  - queryPlanCacheMiss
```
default void queryPlanCacheMiss(String query)
```
    Callback indicating a get from the query plan cache resulted in a miss.
    
    Parameters:
    
    query - The query
  - queryCompiled
```
default void queryCompiled(String hql,
                           long microseconds)
```
    Callback indicating compilation of a sql/hql query
    
    Parameters:
    
    hql - The query
    
    microseconds - execution time
  - slowQuery
```
default void slowQuery(String sql,
                       long executionTime)
```
    Register the execution of a slow SQL query.
  - getSlowQueries
```
default Map<String,Long> getSlowQueries()
```
    Description copied from interface: Statistics
    
    If "hibernate.log_slow_query" is enabled, a map from the SQL query to the maximum execution time in milliseconds.
    
    Specified by:
    
    getSlowQueries in interface Statistics
    
    See Also:
    
    JdbcSettings.LOG_SLOW_QUERY

Interface StatisticsImplementor

Field Summary

Fields inherited from interface org.hibernate.stat.Statistics

Method Summary

Methods inherited from interface org.hibernate.stat.Statistics

Method Detail

openSession

closeSession

flush

connect

prepareStatement

closeStatement

endTransaction

loadEntity

fetchEntity

updateEntity

insertEntity

deleteEntity

optimisticFailure

loadCollection

fetchCollection

updateCollection

recreateCollection

removeCollection

entityCachePut

entityCacheHit

entityCacheMiss

collectionCachePut

collectionCacheHit

collectionCacheMiss

naturalIdCachePut

naturalIdCacheHit

naturalIdCacheMiss

naturalIdQueryExecuted

queryCachePut

queryCacheHit

queryCacheMiss

queryExecuted

updateTimestampsCacheHit

updateTimestampsCacheMiss

updateTimestampsCachePut

queryPlanCacheHit

queryPlanCacheMiss

queryCompiled

slowQuery

getSlowQueries