org.enhydra.dods.statistics
Class TableStatistics

java.lang.Object
  org.enhydra.dods.statistics.TableStatistics

All Implemented Interfaces:

Statistics

public class TableStatistics
extends java.lang.Object
implements Statistics

This class provides information about table and its statistics.

Version:

2.0 15.06.2003.

Author:

Tanja Jovanovic, Nenad Vico, Zorica Suvajdzin

Field Summary

protected int	averageQueryByOIdTime Average time for executing queries by oid in milliseconds.
protected int	averageQueryTime Average time for executing non-oid queries in milliseconds.
protected int	deleteNum Number of delete statements performed on the table.
protected int	insertNum Number of insert statements performed on the table.
protected int	lazyLoadingNum Number of lazy loadings performed on the table.
protected int	queryByOIdNum Total number of queries by oid performed on the table.
protected int	queryNum Total number of non-oid queries performed on the table.
protected java.util.Date	startTime Time when the statistics was started.
protected java.util.Date	stopTime Time when the statistics was stopped.
protected int	updateNum Number of update statements performed on the table.

Fields inherited from interface org.enhydra.dods.statistics.Statistics

CACHE_STATISTICS, QUERY_CACHE_STATISTICS, TABLE_STATISTICS

Constructor Summary

TableStatistics()
Constructor().

Method Summary

void	clear() Clears statistics.
void	clears() Clears statistics.
CacheStatistics	getCacheStatistics(int type) Returns query statistics for table without cache.
int	getDeleteNum() Returns number of delete statements performed on the table.
int	getDMLNum() Returns number of DML operations (inserts, updates and deletes) performed on the table.
int	getInsertNum() Returns number of insert statements performed on the table.
int	getLazyLoadingNum() Returns number of lazy loadings performed on the table.
int	getQueryAverageTime() Returns average time needed for executing non-oid query.
int	getQueryByOIdAverageTime() Returns average time needed for executing oid query.
int	getQueryByOIdNum() Returns total number of queries by oid performed on the table.
int	getQueryNum() Returns total number of non-oid queries performed on the table.
java.util.Date	getStartTime() Returns time when the statistics was started.
int	getStatisticsType() Returns type of the statistics.
java.util.Date	getStopTime() Returns time when the statistics was stopped.
int	getUpdateNum() Returns number of update statements performed on the table.
void	incrementDeleteNum() Increases number of delete statements performed on table.
void	incrementInsertNum() Increases number of insert statemenst performed on the table.
void	incrementLazyLoadingNum() Increases number of lazy loadings performed on the table for one.
void	incrementQueryByOIdNum() Increases total number of queries by oid performed on the table for one.
void	incrementQueryNum() Increases total number of non-oid queries performed on the table.
void	incrementUpdateNum() Increases number of update statements performed on the table.
void	setDeleteNum(int newDeleteNum) Sets number of delete statements performed on the table.
void	setInsertNum(int newInsertNum) Sets number of insert statements performed on the table.
void	setLazyLoadingNum(int newLazyLoadingNum) Sets number of lazy loadings performed on the table.
void	setQueryByOIdNum(int newQueryByOIdNum) Sets total number of queries by oid performed on the table.
void	setQueryNum(int newQueryNum) Sets total number of non-oid queries performed on the table.
void	setStartTime(java.util.Date startTime) Sets time when the statistics starts.
void	setStopTime(java.util.Date stopTime) Sets time when the statistics stops.
void	setUpdateNum(int newUpdateNum) Sets number of update statements performed on the table.
void	stopTime() Sets stop time to current time.
void	updateQueryAverageTime(int newTime) Updates average time needed for executing non-oid queries.
void	updateQueryByOIdAverageTime(int newTime, int no) Updates average time for executing OId queries and increments number of them by paramether no.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

insertNum

protected int insertNum

Number of insert statements performed on the table.

updateNum

protected int updateNum

Number of update statements performed on the table.

deleteNum

protected int deleteNum

Number of delete statements performed on the table.

lazyLoadingNum

protected int lazyLoadingNum

Number of lazy loadings performed on the table.

startTime

protected java.util.Date startTime

Time when the statistics was started.

stopTime

protected java.util.Date stopTime

Time when the statistics was stopped.

queryNum

protected int queryNum

Total number of non-oid queries performed on the table. Query by oid is query which "where" clause contains request for DO with specified oid. Non-oid query is any other query.

queryByOIdNum

protected int queryByOIdNum

Total number of queries by oid performed on the table. Query by oid is query which "where" clause contains request for DO with specified oid.

averageQueryTime

protected int averageQueryTime

Average time for executing non-oid queries in milliseconds. Query by oid is query which "where" clause contains request for DO with specified oid. Non-oid query is any other query.

averageQueryByOIdTime

protected int averageQueryByOIdTime

Average time for executing queries by oid in milliseconds. Query by oid is query which "where" clause contains request for DO with specified oid.

Constructor Detail

TableStatistics

public TableStatistics()

Constructor().

Method Detail

getStatisticsType

public int getStatisticsType()

Returns type of the statistics. In this case, this is TABLE_STATISTICS.

Specified by:

getStatisticsType in interface Statistics

Returns:

Type of the statistics: TABLE_STATISTICS.

getInsertNum

public int getInsertNum()

Returns number of insert statements performed on the table.

Specified by:

getInsertNum in interface Statistics

Returns:

Number of insert statements performed on the table.

setInsertNum

public void setInsertNum(int newInsertNum)

Sets number of insert statements performed on the table.

Specified by:

setInsertNum in interface Statistics

Parameters:

newInsertNum - New number of insert statements performed on the table.

incrementInsertNum

public void incrementInsertNum()

Increases number of insert statemenst performed on the table.

Specified by:

incrementInsertNum in interface Statistics

getUpdateNum

public int getUpdateNum()

Returns number of update statements performed on the table.

Specified by:

getUpdateNum in interface Statistics

Returns:

Number of update statements performed on the table.

setUpdateNum

public void setUpdateNum(int newUpdateNum)

Sets number of update statements performed on the table.

Specified by:

setUpdateNum in interface Statistics

Parameters:

newUpdateNum - New number of update statements performed on the table.

incrementUpdateNum

public void incrementUpdateNum()

Increases number of update statements performed on the table.

Specified by:

incrementUpdateNum in interface Statistics

getDeleteNum

public int getDeleteNum()

Returns number of delete statements performed on the table.

Specified by:

getDeleteNum in interface Statistics

Returns:

Number of delete statements performed on the table.

setDeleteNum

public void setDeleteNum(int newDeleteNum)

Sets number of delete statements performed on the table.

Specified by:

setDeleteNum in interface Statistics

Parameters:

newDeleteNum - New number of delete statements performed on the table.

incrementDeleteNum

public void incrementDeleteNum()

Increases number of delete statements performed on table.

Specified by:

incrementDeleteNum in interface Statistics

getDMLNum

public int getDMLNum()

Returns number of DML operations (inserts, updates and deletes) performed on the table.

Specified by:

getDMLNum in interface Statistics

Returns:

Number of DML operations performed on the table.

getLazyLoadingNum

public int getLazyLoadingNum()

Returns number of lazy loadings performed on the table.

Specified by:

getLazyLoadingNum in interface Statistics

Returns:

Number of lazy loadings performed on the table.

setLazyLoadingNum

public void setLazyLoadingNum(int newLazyLoadingNum)

Sets number of lazy loadings performed on the table.

Specified by:

setLazyLoadingNum in interface Statistics

Parameters:

newLazyLoadingNum - New number of lazy loadings performed on the table.

incrementLazyLoadingNum

public void incrementLazyLoadingNum()

Increases number of lazy loadings performed on the table for one.

Specified by:

incrementLazyLoadingNum in interface Statistics

getStartTime

public java.util.Date getStartTime()

Returns time when the statistics was started.

Specified by:

getStartTime in interface Statistics

Returns:

Time when the statistics was started.

setStartTime

public void setStartTime(java.util.Date startTime)

Sets time when the statistics starts.

Specified by:

setStartTime in interface Statistics

Parameters:

startTime - Time when the statistics starts.

getStopTime

public java.util.Date getStopTime()

Returns time when the statistics was stopped.

Specified by:

getStopTime in interface Statistics

Returns:

Time when the statistics was stopped.

setStopTime

public void setStopTime(java.util.Date stopTime)

Sets time when the statistics stops.

Specified by:

setStopTime in interface Statistics

Parameters:

stopTime - time when the statistics was stops.

stopTime

public void stopTime()

Sets stop time to current time.

Specified by:

stopTime in interface Statistics

getQueryNum

public int getQueryNum()

Returns total number of non-oid queries performed on the table. Query by oid is query which "where" clause contains request for DO with specified oid. Non-oid query is any other query.

Specified by:

getQueryNum in interface Statistics

Returns:

Total number of non-oid queries performed on the table.

setQueryNum

public void setQueryNum(int newQueryNum)

Sets total number of non-oid queries performed on the table. Query by oid is query which "where" clause contains request for DO with specified oid. Non-oid query is any other query.

Specified by:

setQueryNum in interface Statistics

Parameters:

newQueryNum - New total number of non-oid queries performed on the table.

incrementQueryNum

public void incrementQueryNum()

Increases total number of non-oid queries performed on the table. Query by oid is query which "where" clause contains request for DO with specified oid. Non-oid query is any other query.

Specified by:

incrementQueryNum in interface Statistics

getQueryByOIdNum

public int getQueryByOIdNum()

Returns total number of queries by oid performed on the table. Query by oid is query which "where" clause contains request for DO with specified oid.

Specified by:

getQueryByOIdNum in interface Statistics

Returns:

Total number of queries by oid performed performed on the table.

setQueryByOIdNum

public void setQueryByOIdNum(int newQueryByOIdNum)

Sets total number of queries by oid performed on the table. Query by oid is query which "where" clause contains request for DO with specified oid.

Specified by:

setQueryByOIdNum in interface Statistics

Parameters:

newQueryByOIdNum - New total number of queries by oid performed on the table.

incrementQueryByOIdNum

public void incrementQueryByOIdNum()

Increases total number of queries by oid performed on the table for one. Query by oid is query which "where" clause contains request for DO with specified oid.

Specified by:

incrementQueryByOIdNum in interface Statistics

getQueryAverageTime

public int getQueryAverageTime()

Returns average time needed for executing non-oid query. Query by oid is query which "where" clause contains request for DO with specified oid. Non-oid query is any other query.

Specified by:

getQueryAverageTime in interface Statistics

Returns:

Average time needed for executing non-oid query.

updateQueryAverageTime

public void updateQueryAverageTime(int newTime)

Updates average time needed for executing non-oid queries. Query by oid is query which "where" clause contains request for DO with specified oid. Non-oid query is any other query.

Specified by:

updateQueryAverageTime in interface Statistics

Parameters:

newTime - New query time in miliseconds.

getQueryByOIdAverageTime

public int getQueryByOIdAverageTime()

Returns average time needed for executing oid query. Query by oid is query which "where" clause contains request for DO with specified oid.

Specified by:

getQueryByOIdAverageTime in interface Statistics

Returns:

Average time needed for executing oid query.

updateQueryByOIdAverageTime

public void updateQueryByOIdAverageTime(int newTime,
                                        int no)

Updates average time for executing OId queries and increments number of them by paramether no. Query by oid is query which "where" clause contains request for DO with specified oid.

Specified by:

updateQueryByOIdAverageTime in interface Statistics

Parameters:

newTime - New query time in miliseconds for no queries by OId.

no - Number of queries by OId.

clears

public void clears()

Clears statistics.

clear

public void clear()

Clears statistics.

Specified by:

clear in interface Statistics

getCacheStatistics

public CacheStatistics getCacheStatistics(int type)

Returns query statistics for table without cache. Since this is table without cache parameter type has no meaning.

Specified by:

getCacheStatistics in interface Statistics

Parameters:

type - Value 0 (org.enhydra.dods.cache.CacheConstants.DATA_CACHE) for DO (data object) cache, value 1 (org.enhydra.dods.cache.CacheConstants.SIMPLE_QUERY_CACHE) for simple query cache and value 2 (org.enhydra.dods.cache.CacheConstants.COMPLEX_QUERY_CACHE) for complex query cache.

Returns:

Query statistics table.