org.hibernate.stat
Interface StatisticsImplementor

All Known Implementing Classes:

ConcurrentStatisticsImpl, StatisticsImpl

public interface StatisticsImplementor

Statistics SPI for the Hibernate core. This is essentially the "statistic collector" API, its the contract called to collect various stats.

Author:

Emmanuel Bernard

Method Summary

void	closeSession() Callback about a session being closed.
void	closeStatement() Callback about a statement being closed.
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	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
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	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.
void	queryExecuted(String hql, int rows, long time) Callback indicating execution of a sql/hql query
void	recreateCollection(String role) Callback indicating a collection recreation (full deletion + full (re-)insertion).
void	removeCollection(String role) Callback indicating a collection removal.
void	secondLevelCacheHit(String regionName) Callback indicating a get from second level cache resulted in a hit.
void	secondLevelCacheMiss(String regionName) Callback indicating a get from second level cache resulted in a miss.
void	secondLevelCachePut(String regionName) Callback indicating a put into second level cache.
void	updateCollection(String role) Callback indicating a collection was updated.
void	updateEntity(String entityName) Callback about an entity being updated.

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.

secondLevelCachePut

void secondLevelCachePut(String regionName)

Callback indicating a put into second level cache.

Parameters:

regionName - The name of the cache region

secondLevelCacheHit

void secondLevelCacheHit(String regionName)

Callback indicating a get from second level cache resulted in a hit.

Parameters:

regionName - The name of the cache region

secondLevelCacheMiss

void secondLevelCacheMiss(String regionName)

Callback indicating a get from second level cache resulted in a miss.

Parameters:

regionName - The name of the cache region

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