net.ttddyy.dsproxy.listener

Class DataSourceQueryCountListener

java.lang.Object

net.ttddyy.dsproxy.listener.DataSourceQueryCountListener

All Implemented Interfaces:

QueryExecutionListener

public class DataSourceQueryCountListener
extends Object
implements QueryExecutionListener

Update database access information to thread local value(QueryCount).

In web application lifecycle, one http request is handled by one thread. Storing database access information into a thread local value provides metrics information per http request.

Thread local value(QueryCount) holds following data:

• datasource name
• number of database call
• total query execution time
• number of queries by type

QueryCount can be retrieved by QueryCountHolder.get(String).

Author:

Tadaya Tsuyukubo

See Also:

QueryCount, QueryCountHolder, CommonsQueryCountLoggingServletFilter, CommonsQueryCountLoggingRequestListener, CommonsQueryCountLoggingHandlerInterceptor

Field Summary

Fields inherited from interface net.ttddyy.dsproxy.listener.QueryExecutionListener

DEFAULT

Constructor Summary

Constructors

Constructor and Description
DataSourceQueryCountListener()

Method Summary

Modifier and Type	Method and Description
void	afterQuery(ExecutionInfo execInfo, List<QueryInfo> queryInfoList)
void	beforeQuery(ExecutionInfo execInfo, List<QueryInfo> queryInfoList)

Methods inherited from class java.lang.Object

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

Constructor Detail

DataSourceQueryCountListener

public DataSourceQueryCountListener()

Method Detail

beforeQuery

public void beforeQuery(ExecutionInfo execInfo,
                        List<QueryInfo> queryInfoList)

Specified by:

beforeQuery in interface QueryExecutionListener

afterQuery

public void afterQuery(ExecutionInfo execInfo,
                       List<QueryInfo> queryInfoList)

Specified by:

afterQuery in interface QueryExecutionListener