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## org.hibernate.stat
Class StatisticsImpl

    java.lang.Object
      org.hibernate.stat.StatisticsImpl

All Implemented Interfaces:
  Statistics, StatisticsImplementor

    public class StatisticsImpl

extends Object
implements Statistics, StatisticsImplementor

Author:
  Gavin King
See Also:
  `Statistics`

Constructor Summary
`StatisticsImpl()`
`StatisticsImpl(SessionFactoryImplementor sessionFactory)`

Method Summary
`void` | `clear()` reset all statistics
`void` | `closeSession()`
`void` | `closeStatement()`
`void` | `connect()`
`void` | `deleteEntity(String entityName)`
`void` | `endTransaction(boolean success)`
`void` | `fetchCollection(String role)`
`void` | `fetchEntity(String entityName)`
`void` | `flush()`
`long` | `getCloseStatementCount()` The number of prepared statements that were released
`long` | `getCollectionFetchCount()` Global number of collections fetched
`long` | `getCollectionLoadCount()` Global number of collections loaded
`long` | `getCollectionRecreateCount()` Global number of collections recreated
`long` | `getCollectionRemoveCount()` Global number of collections removed
`String[]` | `getCollectionRoleNames()` Get the names of all collection roles
`CollectionStatistics` | `getCollectionStatistics(String role)` Get collection statistics per role
`long` | `getCollectionUpdateCount()` Global number of collections updated
`long` | `getConnectCount()` Get the global number of connections asked by the sessions (the actual number of connections used may be much smaller depending whether you use a connection pool or not)
`long` | `getEntityDeleteCount()` Get global number of entity deletes
`long` | `getEntityFetchCount()` Get global number of entity fetchs
`long` | `getEntityInsertCount()` Get global number of entity inserts
`long` | `getEntityLoadCount()` Get global number of entity loads
`String[]` | `getEntityNames()` Get the names of all entities
`EntityStatistics` | `getEntityStatistics(String entityName)` find entity statistics per name
`long` | `getEntityUpdateCount()` Get global number of entity updates
`long` | `getFlushCount()` Get the global number of flush executed by sessions (either implicit or explicit)
`long` | `getOptimisticFailureCount()` The number of `StaleObjectStateException`s that occurred
`long` | `getPrepareStatementCount()` The number of prepared statements that were acquired
`String[]` | `getQueries()` Get all executed query strings
`long` | `getQueryCacheHitCount()` Get the global number of cached queries successfully retrieved from cache
`long` | `getQueryCacheMissCount()` Get the global number of cached queries *not* found in cache
`long` | `getQueryCachePutCount()` Get the global number of cacheable queries put in cache
`long` | `getQueryExecutionCount()` Get global number of executed queries
`long` | `getQueryExecutionMaxTime()` Get the time in milliseconds of the slowest query.
`String` | `getQueryExecutionMaxTimeQueryString()` Get the query string for the slowest query.
`QueryStatistics` | `getQueryStatistics(String queryString)` Query statistics from query string (HQL or SQL)
`long` | `getSecondLevelCacheHitCount()` Global number of cacheable entities/collections successfully retrieved from the cache
`long` | `getSecondLevelCacheMissCount()` Global number of cacheable entities/collections not found in the cache and loaded from the database.
`long` | `getSecondLevelCachePutCount()` Global number of cacheable entities/collections put in the cache
`String[]` | `getSecondLevelCacheRegionNames()` Get all second-level cache region names
`SecondLevelCacheStatistics` | `getSecondLevelCacheStatistics(String regionName)` Second level cache statistics per region
`long` | `getSessionCloseCount()` Global number of sessions closed
`long` | `getSessionOpenCount()` Global number of sessions opened
`long` | `getStartTime()`
`long` | `getSuccessfulTransactionCount()` The number of transactions we know to have been successful
`long` | `getTransactionCount()` The number of transactions we know to have completed
`void` | `insertEntity(String entityName)`
`boolean` | `isStatisticsEnabled()` Are statistics logged
`void` | `loadCollection(String role)`
`void` | `loadEntity(String entityName)`
`void` | `logSummary()` log in info level the main statistics
`void` | `openSession()`
`void` | `optimisticFailure(String entityName)`
`void` | `prepareStatement()`
`void` | `queryCacheHit(String hql, String regionName)`
`void` | `queryCacheMiss(String hql, String regionName)`
`void` | `queryCachePut(String hql, String regionName)`
`void` | `queryExecuted(String hql, int rows, long time)`
`void` | `recreateCollection(String role)`
`void` | `removeCollection(String role)`
`void` | `secondLevelCacheHit(String regionName)`
`void` | `secondLevelCacheMiss(String regionName)`
`void` | `secondLevelCachePut(String regionName)`
`void` | `setStatisticsEnabled(boolean b)` Enable statistics logs (this is a dynamic parameter)
`String` | `toString()`
`void` | `updateCollection(String role)`
`void` | `updateEntity(String entityName)`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Constructor Detail

### StatisticsImpl

    public StatisticsImpl()

### StatisticsImpl

    public StatisticsImpl(SessionFactoryImplementor sessionFactory)

Method Detail

### clear

    public void clear()

  reset all statistics

  Specified by:
    `clear` in interface `Statistics`

### openSession

    public void openSession()

  Specified by:
    `openSession` in interface `StatisticsImplementor`

### closeSession

    public void closeSession()

  Specified by:
    `closeSession` in interface `StatisticsImplementor`

### flush

    public void flush()

  Specified by:
    `flush` in interface `StatisticsImplementor`

### connect

    public void connect()

  Specified by:
    `connect` in interface `StatisticsImplementor`

### loadEntity

    public void loadEntity(String entityName)

  Specified by:
    `loadEntity` in interface `StatisticsImplementor`

### fetchEntity

    public void fetchEntity(String entityName)

  Specified by:
    `fetchEntity` in interface `StatisticsImplementor`

### getEntityStatistics

    public EntityStatistics getEntityStatistics(String entityName)

  find entity statistics per name

  Specified by:
    `getEntityStatistics` in interface `Statistics`
  Parameters:
    `entityName` - entity name
  Returns:
    EntityStatistics object

### updateEntity

    public void updateEntity(String entityName)

  Specified by:
    `updateEntity` in interface `StatisticsImplementor`

### insertEntity

    public void insertEntity(String entityName)

  Specified by:
    `insertEntity` in interface `StatisticsImplementor`

### deleteEntity

    public void deleteEntity(String entityName)

  Specified by:
    `deleteEntity` in interface `StatisticsImplementor`

### getCollectionStatistics

    public CollectionStatistics getCollectionStatistics(String role)

  Get collection statistics per role

  Specified by:
    `getCollectionStatistics` in interface `Statistics`
  Parameters:
    `role` - collection role
  Returns:
    CollectionStatistics

### loadCollection

    public void loadCollection(String role)

  Specified by:
    `loadCollection` in interface `StatisticsImplementor`

### fetchCollection

    public void fetchCollection(String role)

  Specified by:
    `fetchCollection` in interface `StatisticsImplementor`

### updateCollection

    public void updateCollection(String role)

  Specified by:
    `updateCollection` in interface `StatisticsImplementor`

### recreateCollection

    public void recreateCollection(String role)

  Specified by:
    `recreateCollection` in interface `StatisticsImplementor`

### removeCollection

    public void removeCollection(String role)

  Specified by:
    `removeCollection` in interface `StatisticsImplementor`

### getSecondLevelCacheStatistics

    public SecondLevelCacheStatistics getSecondLevelCacheStatistics(String regionName)

  Second level cache statistics per region

  Specified by:
    `getSecondLevelCacheStatistics` in interface `Statistics`
  Parameters:
    `regionName` - region name
  Returns:
    SecondLevelCacheStatistics

### secondLevelCachePut

    public void secondLevelCachePut(String regionName)

  Specified by:
    `secondLevelCachePut` in interface `StatisticsImplementor`

### secondLevelCacheHit

    public void secondLevelCacheHit(String regionName)

  Specified by:
    `secondLevelCacheHit` in interface `StatisticsImplementor`

### secondLevelCacheMiss

    public void secondLevelCacheMiss(String regionName)

  Specified by:
    `secondLevelCacheMiss` in interface `StatisticsImplementor`

### queryExecuted

    public void queryExecuted(String hql,
                              int rows,
                              long time)

  Specified by:
    `queryExecuted` in interface `StatisticsImplementor`

### queryCacheHit

    public void queryCacheHit(String hql,
                              String regionName)

  Specified by:
    `queryCacheHit` in interface `StatisticsImplementor`

### queryCacheMiss

    public void queryCacheMiss(String hql,
                               String regionName)

  Specified by:
    `queryCacheMiss` in interface `StatisticsImplementor`

### queryCachePut

    public void queryCachePut(String hql,
                              String regionName)

  Specified by:
    `queryCachePut` in interface `StatisticsImplementor`

### getQueryStatistics

    public QueryStatistics getQueryStatistics(String queryString)

  Query statistics from query string (HQL or SQL)

  Specified by:
    `getQueryStatistics` in interface `Statistics`
  Parameters:
    `queryString` - query string
  Returns:
    QueryStatistics

### getEntityDeleteCount

    public long getEntityDeleteCount()

  Description copied from interface: `Statistics`
  Get global number of entity deletes

  Specified by:
    `getEntityDeleteCount` in interface `Statistics`
  Returns:
    entity deletion count

### getEntityInsertCount

    public long getEntityInsertCount()

  Description copied from interface: `Statistics`
  Get global number of entity inserts

  Specified by:
    `getEntityInsertCount` in interface `Statistics`
  Returns:
    entity insertion count

### getEntityLoadCount

    public long getEntityLoadCount()

  Description copied from interface: `Statistics`
  Get global number of entity loads

  Specified by:
    `getEntityLoadCount` in interface `Statistics`
  Returns:
    entity load (from DB)

### getEntityFetchCount

    public long getEntityFetchCount()

  Description copied from interface: `Statistics`
  Get global number of entity fetchs

  Specified by:
    `getEntityFetchCount` in interface `Statistics`
  Returns:
    entity fetch (from DB)

### getEntityUpdateCount

    public long getEntityUpdateCount()

  Description copied from interface: `Statistics`
  Get global number of entity updates

  Specified by:
    `getEntityUpdateCount` in interface `Statistics`
  Returns:
    entity update

### getQueryExecutionCount

    public long getQueryExecutionCount()

  Description copied from interface: `Statistics`
  Get global number of executed queries

  Specified by:
    `getQueryExecutionCount` in interface `Statistics`
  Returns:
    query execution count

### getQueryCacheHitCount

    public long getQueryCacheHitCount()

  Description copied from interface: `Statistics`
  Get the global number of cached queries successfully retrieved from cache

  Specified by:
    `getQueryCacheHitCount` in interface `Statistics`

### getQueryCacheMissCount

    public long getQueryCacheMissCount()

  Description copied from interface: `Statistics`
  Get the global number of cached queries *not* found in cache

  Specified by:
    `getQueryCacheMissCount` in interface `Statistics`

### getQueryCachePutCount

    public long getQueryCachePutCount()

  Description copied from interface: `Statistics`
  Get the global number of cacheable queries put in cache

  Specified by:
    `getQueryCachePutCount` in interface `Statistics`

### getFlushCount

    public long getFlushCount()

  Description copied from interface: `Statistics`
  Get the global number of flush executed by sessions (either implicit or explicit)

  Specified by:
    `getFlushCount` in interface `Statistics`
  Returns:
    flush

### getConnectCount

    public long getConnectCount()

  Description copied from interface: `Statistics`
  Get the global number of connections asked by the sessions (the actual number of connections used may be much smaller depending whether you use a connection pool or not)

  Specified by:
    `getConnectCount` in interface `Statistics`
  Returns:
    session connect

### getSecondLevelCacheHitCount

    public long getSecondLevelCacheHitCount()

  Description copied from interface: `Statistics`
  Global number of cacheable entities/collections successfully retrieved from the cache

  Specified by:
    `getSecondLevelCacheHitCount` in interface `Statistics`
  Returns:
    second level cache hit

### getSecondLevelCacheMissCount

    public long getSecondLevelCacheMissCount()

  Description copied from interface: `Statistics`
  Global number of cacheable entities/collections not found in the cache and loaded from the database.

  Specified by:
    `getSecondLevelCacheMissCount` in interface `Statistics`
  Returns:
    second level cache miss

### getSecondLevelCachePutCount

    public long getSecondLevelCachePutCount()

  Description copied from interface: `Statistics`
  Global number of cacheable entities/collections put in the cache

  Specified by:
    `getSecondLevelCachePutCount` in interface `Statistics`
  Returns:
    second level cache put

### getSessionCloseCount

    public long getSessionCloseCount()

  Description copied from interface: `Statistics`
  Global number of sessions closed

  Specified by:
    `getSessionCloseCount` in interface `Statistics`
  Returns:
    session closing

### getSessionOpenCount

    public long getSessionOpenCount()

  Description copied from interface: `Statistics`
  Global number of sessions opened

  Specified by:
    `getSessionOpenCount` in interface `Statistics`
  Returns:
    session opening

### getCollectionLoadCount

    public long getCollectionLoadCount()

  Description copied from interface: `Statistics`
  Global number of collections loaded

  Specified by:
    `getCollectionLoadCount` in interface `Statistics`
  Returns:
    collection loading (from DB)

### getCollectionFetchCount

    public long getCollectionFetchCount()

  Description copied from interface: `Statistics`
  Global number of collections fetched

  Specified by:
    `getCollectionFetchCount` in interface `Statistics`
  Returns:
    collection fetching (from DB)

### getCollectionUpdateCount

    public long getCollectionUpdateCount()

  Description copied from interface: `Statistics`
  Global number of collections updated

  Specified by:
    `getCollectionUpdateCount` in interface `Statistics`
  Returns:
    collection update

### getCollectionRemoveCount

    public long getCollectionRemoveCount()

  Description copied from interface: `Statistics`
  Global number of collections removed

  Specified by:
    `getCollectionRemoveCount` in interface `Statistics`
  Returns:
    collection removal FIXME: even if isInverse="true"?

### getCollectionRecreateCount

    public long getCollectionRecreateCount()

  Description copied from interface: `Statistics`
  Global number of collections recreated

  Specified by:
    `getCollectionRecreateCount` in interface `Statistics`
  Returns:
    collection recreation

### getStartTime

    public long getStartTime()

  Specified by:
    `getStartTime` in interface `Statistics`
  Returns:
    start time in ms (JVM standards `System.currentTimeMillis()`)

### logSummary

    public void logSummary()

  log in info level the main statistics

  Specified by:
    `logSummary` in interface `Statistics`

### isStatisticsEnabled

    public boolean isStatisticsEnabled()

  Are statistics logged

  Specified by:
    `isStatisticsEnabled` in interface `Statistics`

### setStatisticsEnabled

    public void setStatisticsEnabled(boolean b)

  Enable statistics logs (this is a dynamic parameter)

  Specified by:
    `setStatisticsEnabled` in interface `Statistics`

### getQueryExecutionMaxTime

    public long getQueryExecutionMaxTime()

  Description copied from interface: `Statistics`
  Get the time in milliseconds of the slowest query.

  Specified by:
    `getQueryExecutionMaxTime` in interface `Statistics`
  Returns:
    Returns the max query execution time, for all queries

### getQueries

    public String[] getQueries()

  Get all executed query strings

  Specified by:
    `getQueries` in interface `Statistics`

### getEntityNames

    public String[] getEntityNames()

  Get the names of all entities

  Specified by:
    `getEntityNames` in interface `Statistics`

### getCollectionRoleNames

    public String[] getCollectionRoleNames()

  Get the names of all collection roles

  Specified by:
    `getCollectionRoleNames` in interface `Statistics`

### getSecondLevelCacheRegionNames

    public String[] getSecondLevelCacheRegionNames()

  Get all second-level cache region names

  Specified by:
    `getSecondLevelCacheRegionNames` in interface `Statistics`

### endTransaction

    public void endTransaction(boolean success)

  Specified by:
    `endTransaction` in interface `StatisticsImplementor`

### getSuccessfulTransactionCount

    public long getSuccessfulTransactionCount()

  Description copied from interface: `Statistics`
  The number of transactions we know to have been successful

  Specified by:
    `getSuccessfulTransactionCount` in interface `Statistics`

### getTransactionCount

    public long getTransactionCount()

  Description copied from interface: `Statistics`
  The number of transactions we know to have completed

  Specified by:
    `getTransactionCount` in interface `Statistics`

### closeStatement

    public void closeStatement()

  Specified by:
    `closeStatement` in interface `StatisticsImplementor`

### prepareStatement

    public void prepareStatement()

  Specified by:
    `prepareStatement` in interface `StatisticsImplementor`

### getCloseStatementCount

    public long getCloseStatementCount()

  Description copied from interface: `Statistics`
  The number of prepared statements that were released

  Specified by:
    `getCloseStatementCount` in interface `Statistics`

### getPrepareStatementCount

    public long getPrepareStatementCount()

  Description copied from interface: `Statistics`
  The number of prepared statements that were acquired

  Specified by:
    `getPrepareStatementCount` in interface `Statistics`

### optimisticFailure

    public void optimisticFailure(String entityName)

  Specified by:
    `optimisticFailure` in interface `StatisticsImplementor`

### getOptimisticFailureCount

    public long getOptimisticFailureCount()

  Description copied from interface: `Statistics`
  The number of `StaleObjectStateException`s that occurred

  Specified by:
    `getOptimisticFailureCount` in interface `Statistics`

### toString

    public String toString()

  Overrides:
    `toString` in class `Object`

### getQueryExecutionMaxTimeQueryString

    public String getQueryExecutionMaxTimeQueryString()

  Description copied from interface: `Statistics`
  Get the query string for the slowest query.

  Specified by:
    `getQueryExecutionMaxTimeQueryString` in interface `Statistics`

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