Modifier and Type	Class and Description
public static class	SlowQueryReport.QueryStats
public static class	SlowQueryReport.QueryStatsComparator Compare QueryStats by their lastInvocation value.

Modifier and Type	Field and Description
private static final Log	log Hides org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.log.
protected boolean	logFailed Flag to enable disable logging of failed queries
protected boolean	logSlow Flag to enable disable logging of slow queries
protected int	maxQueries Maximum number of queries we will be storing
protected static final ConcurrentHashMap<String, ConcurrentHashMap<String, SlowQueryReport.QueryStats>>	perPoolStats we will be keeping track of query stats on a per pool basis
protected volatile ConcurrentHashMap<String, SlowQueryReport.QueryStats>	queries the queries that are used for this interceptor.
protected final Comparator<SlowQueryReport.QueryStats>	queryStatsComparator Sort QueryStats by last invocation time

Access	Constructor and Description
public	SlowQueryReport() Creates a slow query report interceptor

Method Summary

Modifier and Type	Method and Description
public void	closeInvoked() Implements abstract org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.closeInvoked. invoked when the connection receives the close request Not used for now.
public static ConcurrentHashMap<String, SlowQueryReport.QueryStats>	Returns: a hash map containing statistics for 0 to maxQueries getPoolStats(String - the name of the pool we want to retrieve stats for poolname) Returns the query stats for a given pool
protected SlowQueryReport.QueryStats	getQueryStats(String sql)
public boolean	isLogFailed()
public boolean	isLogSlow()
public void	poolClosed(ConnectionPool - the pool that is being closed. pool) Overrides org.apache.tomcat.jdbc.pool.JdbcInterceptor.poolClosed. This method is invoked by a connection pool when the pool is closed.
public void	poolStarted(ConnectionPool - the pool that is being closed. pool) Overrides org.apache.tomcat.jdbc.pool.JdbcInterceptor.poolStarted. This method is invoked by a connection pool when the pool is first started up, usually when the first connection is requested.
public void	prepareCall(String - the string used to prepare the statement with sql, long - the time it took to invoke prepare time) Implements abstract org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.prepareCall. Invoked when prepareCall has been called and completed.
public void	prepareStatement(String - the string used to prepare the statement with sql, long - the time it took to invoke prepare time) Implements abstract org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.prepareStatement. Invoked when prepareStatement has been called and completed.
protected void	removeOldest(ConcurrentHashMap<String, SlowQueryReport.QueryStats> The queries map queries) Sort QueryStats by last invocation time
protected String	reportFailedQuery(String the query that was executed and failed query, Object[] the arguments to the execution args, String the name of the method used to execute `AbstractCreateStatementInterceptor#isExecute(Method, boolean)` name, long the time the query execution started start, Throwable the exception that happened t) Overrides org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.reportFailedQuery. Invoked when a query execution, a call to execute/executeQuery or executeBatch failed.
protected String	reportQuery(String the query that was executed and failed query, Object[] the arguments to the execution args, final String the name of the method used to execute `AbstractCreateStatementInterceptor#isExecute(Method, boolean)` name, long the time the query execution started start, long the time the execution took delta) Overrides org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.reportQuery. Invoked when a query execution, a call to execute/executeQuery or executeBatch succeeded and was within the timing threshold
protected String	reportSlowQuery(String the query that was executed and failed query, Object[] the arguments to the execution args, String the name of the method used to execute `AbstractCreateStatementInterceptor#isExecute(Method, boolean)` name, long the time the query execution started start, long the time the execution took delta) Overrides org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.reportSlowQuery. Invoked when a query execution, a call to execute/executeQuery or executeBatch succeeded and was exceeded the timing threshold
public void	reset(ConnectionPool - the connection pool owning the connection parent, PooledConnection - the pooled connection con) Overrides org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.reset. no-op for this interceptor.
public void	setLogFailed(boolean logFailed)
public void	setLogSlow(boolean logSlow)
public void	setMaxQueries(int maxQueries)
public void	setProperties(Map<String, PoolProperties.InterceptorProperty> The properties properties) Overrides org.apache.tomcat.jdbc.pool.JdbcInterceptor.setProperties. Called during the creation of an interceptor The properties can be set during the configuration of an interceptor Override this method to perform type casts between string values and object properties

Inherited from org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport:: createStatement getThreshold setThreshold

log	back to summary
private static final Log log Hides org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.log.

logFailed	back to summary
protected boolean logFailed Flag to enable disable logging of failed queries

logSlow	back to summary
protected boolean logSlow Flag to enable disable logging of slow queries

maxQueries	back to summary
protected int maxQueries Maximum number of queries we will be storing

perPoolStats	back to summary
protected static final ConcurrentHashMap<String, ConcurrentHashMap<String, SlowQueryReport.QueryStats>> perPoolStats we will be keeping track of query stats on a per pool basis

queries	back to summary
protected volatile ConcurrentHashMap<String, SlowQueryReport.QueryStats> queries the queries that are used for this interceptor.

queryStatsComparator	back to summary
protected final Comparator<SlowQueryReport.QueryStats> queryStatsComparator Sort QueryStats by last invocation time

Constructor Detail

SlowQueryReport	back to summary
public SlowQueryReport() Creates a slow query report interceptor

Method Detail

closeInvoked	back to summary
public void closeInvoked() Implements abstract org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.closeInvoked. invoked when the connection receives the close request Not used for now. Annotations @Override

closeInvoked

back to summary

public void closeInvoked()

Implements abstract org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.closeInvoked.

invoked when the connection receives the close request Not used for now.

Annotations

@Override

getPoolStats	back to summary
public static ConcurrentHashMap<String, SlowQueryReport.QueryStats> getPoolStats(String poolname) Returns the query stats for a given pool Parameters poolname:String - the name of the pool we want to retrieve stats for Returns:ConcurrentHashMap<String, SlowQueryReport.QueryStats> a hash map containing statistics for 0 to maxQueries

getPoolStats

back to summary

public static ConcurrentHashMap<String, SlowQueryReport.QueryStats> getPoolStats(String poolname)

Returns the query stats for a given pool

Parameters

poolname:String: - the name of the pool we want to retrieve stats for

Returns:ConcurrentHashMap<String, SlowQueryReport.QueryStats>

a hash map containing statistics for 0 to maxQueries

getQueryStats	back to summary
protected SlowQueryReport.QueryStats getQueryStats(String sql)

isLogFailed	back to summary
public boolean isLogFailed()

isLogSlow	back to summary
public boolean isLogSlow()

poolClosed	back to summary
public void poolClosed(ConnectionPool pool) Overrides org.apache.tomcat.jdbc.pool.JdbcInterceptor.poolClosed. Doc from org.apache.tomcat.jdbc.pool.JdbcInterceptor.poolClosed. This method is invoked by a connection pool when the pool is closed. Interceptor classes can override this method if they keep static variables or other tracking means around. This method is only invoked on a single instance of the interceptor, and not on every instance created. Parameters pool:ConnectionPool - the pool that is being closed. Annotations @Override

poolClosed

back to summary

public void poolClosed(ConnectionPool pool)

Overrides org.apache.tomcat.jdbc.pool.JdbcInterceptor.poolClosed.

Doc from org.apache.tomcat.jdbc.pool.JdbcInterceptor.poolClosed.

This method is invoked by a connection pool when the pool is closed. Interceptor classes can override this method if they keep static variables or other tracking means around. This method is only invoked on a single instance of the interceptor, and not on every instance created.

Parameters

pool:ConnectionPool: - the pool that is being closed.

Annotations

@Override

poolStarted	back to summary
public void poolStarted(ConnectionPool pool) Overrides org.apache.tomcat.jdbc.pool.JdbcInterceptor.poolStarted. Doc from org.apache.tomcat.jdbc.pool.JdbcInterceptor.poolStarted. This method is invoked by a connection pool when the pool is first started up, usually when the first connection is requested. Interceptor classes can override this method if they keep static variables or other tracking means around. This method is only invoked on a single instance of the interceptor, and not on every instance created. Parameters pool:ConnectionPool - the pool that is being closed. Annotations @Override

poolStarted

back to summary

public void poolStarted(ConnectionPool pool)

Overrides org.apache.tomcat.jdbc.pool.JdbcInterceptor.poolStarted.

Doc from org.apache.tomcat.jdbc.pool.JdbcInterceptor.poolStarted.

This method is invoked by a connection pool when the pool is first started up, usually when the first connection is requested. Interceptor classes can override this method if they keep static variables or other tracking means around. This method is only invoked on a single instance of the interceptor, and not on every instance created.

Parameters

pool:ConnectionPool: - the pool that is being closed.

Annotations

@Override

prepareCall	back to summary
public void prepareCall(String sql, long time) Implements abstract org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.prepareCall. Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.prepareCall. Invoked when prepareCall has been called and completed. Parameters sql:String - the string used to prepare the statement with time:long - the time it took to invoke prepare Annotations @Override

prepareCall

back to summary

public void prepareCall(String sql, long time)

Implements abstract org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.prepareCall.

Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.prepareCall.

Invoked when prepareCall has been called and completed.

Parameters

sql:String: - the string used to prepare the statement with
time:long: - the time it took to invoke prepare

Annotations

@Override

prepareStatement	back to summary
public void prepareStatement(String sql, long time) Implements abstract org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.prepareStatement. Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.prepareStatement. Invoked when prepareStatement has been called and completed. Parameters sql:String - the string used to prepare the statement with time:long - the time it took to invoke prepare Annotations @Override

prepareStatement

back to summary

public void prepareStatement(String sql, long time)

Implements abstract org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.prepareStatement.

Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.prepareStatement.

Invoked when prepareStatement has been called and completed.

Parameters

sql:String: - the string used to prepare the statement with
time:long: - the time it took to invoke prepare

Annotations

@Override

removeOldest	back to summary
protected void removeOldest(ConcurrentHashMap<String, SlowQueryReport.QueryStats> queries) Sort QueryStats by last invocation time Parameters queries:ConcurrentHashMap<String, SlowQueryReport.QueryStats> The queries map

removeOldest

back to summary

protected void removeOldest(ConcurrentHashMap<String, SlowQueryReport.QueryStats> queries)

Sort QueryStats by last invocation time

Parameters

queries:ConcurrentHashMap<String, SlowQueryReport.QueryStats>: The queries map

reportFailedQuery back to summary

reportFailedQuery	back to summary
protected String reportFailedQuery(String query, Object[] args, String name, long start, Throwable t) Overrides org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.reportFailedQuery. Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.reportFailedQuery. Invoked when a query execution, a call to execute/executeQuery or executeBatch failed. Parameters query:String the query that was executed and failed args:Object[] the arguments to the execution name:String the name of the method used to execute `AbstractCreateStatementInterceptor#isExecute(Method, boolean)` start:long the time the query execution started t:Throwable the exception that happened Returns:String - the SQL that was executed or the string "batch" if it was a batch execution Annotations @Override

protected String reportFailedQuery(String query, Object[] args, String name, long start, Throwable t)

Overrides org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.reportFailedQuery.

Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.reportFailedQuery.

Invoked when a query execution, a call to execute/executeQuery or executeBatch failed.

Parameters

query:String: the query that was executed and failed
args:Object[]: the arguments to the execution
name:String: the name of the method used to execute AbstractCreateStatementInterceptor#isExecute(Method, boolean)
start:long: the time the query execution started
t:Throwable: the exception that happened

Returns:String

- the SQL that was executed or the string "batch" if it was a batch execution

Annotations

@Override

reportQuery back to summary

reportQuery	back to summary
protected String reportQuery(String query, Object[] args, final String name, long start, long delta) Overrides org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.reportQuery. Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.reportQuery. Invoked when a query execution, a call to execute/executeQuery or executeBatch succeeded and was within the timing threshold Parameters query:String the query that was executed and failed args:Object[] the arguments to the execution name:String the name of the method used to execute `AbstractCreateStatementInterceptor#isExecute(Method, boolean)` start:long the time the query execution started delta:long the time the execution took Returns:String - the SQL that was executed or the string "batch" if it was a batch execution Annotations @Override

protected String reportQuery(String query, Object[] args, final String name, long start, long delta)

Overrides org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.reportQuery.

Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.reportQuery.

Invoked when a query execution, a call to execute/executeQuery or executeBatch succeeded and was within the timing threshold

Parameters

query:String: the query that was executed and failed
args:Object[]: the arguments to the execution
name:String: the name of the method used to execute AbstractCreateStatementInterceptor#isExecute(Method, boolean)
start:long: the time the query execution started
delta:long: the time the execution took

Returns:String

- the SQL that was executed or the string "batch" if it was a batch execution

Annotations

@Override

reportSlowQuery back to summary

reportSlowQuery	back to summary
protected String reportSlowQuery(String query, Object[] args, String name, long start, long delta) Overrides org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.reportSlowQuery. Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.reportSlowQuery. Invoked when a query execution, a call to execute/executeQuery or executeBatch succeeded and was exceeded the timing threshold Parameters query:String the query that was executed and failed args:Object[] the arguments to the execution name:String the name of the method used to execute `AbstractCreateStatementInterceptor#isExecute(Method, boolean)` start:long the time the query execution started delta:long the time the execution took Returns:String - the SQL that was executed or the string "batch" if it was a batch execution Annotations @Override

protected String reportSlowQuery(String query, Object[] args, String name, long start, long delta)

Overrides org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.reportSlowQuery.

Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractQueryReport.reportSlowQuery.

Invoked when a query execution, a call to execute/executeQuery or executeBatch succeeded and was exceeded the timing threshold

Parameters

query:String: the query that was executed and failed
args:Object[]: the arguments to the execution
name:String: the name of the method used to execute AbstractCreateStatementInterceptor#isExecute(Method, boolean)
start:long: the time the query execution started
delta:long: the time the execution took

Returns:String

- the SQL that was executed or the string "batch" if it was a batch execution

Annotations

@Override

reset	back to summary
public void reset(ConnectionPool parent, PooledConnection con) Overrides org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.reset. Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.reset. no-op for this interceptor. no state is stored. Parameters parent:ConnectionPool Doc from org.apache.tomcat.jdbc.pool.JdbcInterceptor.reset. - the connection pool owning the connection con:PooledConnection Doc from org.apache.tomcat.jdbc.pool.JdbcInterceptor.reset. - the pooled connection Annotations @Override

reset

back to summary

public void reset(ConnectionPool parent, PooledConnection con)

Overrides org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.reset.

Doc from org.apache.tomcat.jdbc.pool.interceptor.AbstractCreateStatementInterceptor.reset.

no-op for this interceptor. no state is stored.

Parameters

parent:ConnectionPool

Doc from org.apache.tomcat.jdbc.pool.JdbcInterceptor.reset.

- the connection pool owning the connection

con:PooledConnection

Doc from org.apache.tomcat.jdbc.pool.JdbcInterceptor.reset.

- the pooled connection

Annotations

@Override

setLogFailed	back to summary
public void setLogFailed(boolean logFailed)

setLogSlow	back to summary
public void setLogSlow(boolean logSlow)

setMaxQueries	back to summary
public void setMaxQueries(int maxQueries)

setProperties	back to summary
public void setProperties(Map<String, PoolProperties.InterceptorProperty> properties) Overrides org.apache.tomcat.jdbc.pool.JdbcInterceptor.setProperties. Doc from org.apache.tomcat.jdbc.pool.JdbcInterceptor.setProperties. Called during the creation of an interceptor The properties can be set during the configuration of an interceptor Override this method to perform type casts between string values and object properties Parameters properties:Map<String, PoolProperties.InterceptorProperty> The properties Annotations @Override

setProperties

back to summary

public void setProperties(Map<String, PoolProperties.InterceptorProperty> properties)

Overrides org.apache.tomcat.jdbc.pool.JdbcInterceptor.setProperties.

Doc from org.apache.tomcat.jdbc.pool.JdbcInterceptor.setProperties.

Called during the creation of an interceptor The properties can be set during the configuration of an interceptor Override this method to perform type casts between string values and object properties

Parameters

properties:Map<String, PoolProperties.InterceptorProperty>: The properties

Annotations

@Override

org.apache.tomcat.jdbc.pool.interceptor back to summary

public Class SlowQueryReport.QueryStats

Class Inheritance

extends Object

java.lang.Object
org.apache.tomcat.jdbc.pool.interceptor.SlowQueryReport.QueryStats

Field Summary

Modifier and Type	Field and Description
private volatile long	failures
pack-priv static final String[]	FIELD_DESCRIPTIONS
pack-priv static final String[]	FIELD_NAMES
pack-priv static final OpenType<?>[]	FIELD_TYPES
private volatile long	lastInvocation
private volatile long	maxInvocationDate
private volatile long	maxInvocationTime
private volatile long	minInvocationDate
private volatile long	minInvocationTime
private volatile int	nrOfInvocations
private volatile int	prepareCount
private volatile long	prepareTime
private final String	query
private volatile long	totalInvocationTime

Constructor Summary

Access	Constructor and Description
public	QueryStats(String query)

Method Summary

Modifier and Type	Method and Description
public synchronized void	add(long invocationTime, long now)
public boolean	equals(Object the reference object with which to compare. other) Overrides java.lang.Object.equals. Indicates whether some other object is "equal to" this one.
public synchronized void	failure(long invocationTime, long now)
public CompositeDataSupport	getCompositeData(final CompositeType type)
public static String[]	getFieldDescriptions()
public static String[]	getFieldNames()
public static OpenType<?>[]	getFieldTypes()
public long	getMaxInvocationDate()
public long	getMaxInvocationTime()
public long	getMinInvocationDate()
public long	getMinInvocationTime()
public int	getNrOfInvocations()
public String	getQuery()
public long	getTotalInvocationTime()
public int	hashCode() Overrides java.lang.Object.hashCode. Returns a hash code value for this object.
public boolean	isOlderThan(SlowQueryReport.QueryStats other)
public synchronized void	prepare(long invocationTime)
public String	toString() Overrides java.lang.Object.toString. Returns a string representation of the object.

Inherited from java.lang.Object:: clone finalize getClass notify notifyAll wait wait wait

Field Detail

failures	back to summary
private volatile long failures

FIELD_DESCRIPTIONS	back to summary
pack-priv static final String[] FIELD_DESCRIPTIONS

FIELD_NAMES	back to summary
pack-priv static final String[] FIELD_NAMES

FIELD_TYPES	back to summary
pack-priv static final OpenType<?>[] FIELD_TYPES

lastInvocation	back to summary
private volatile long lastInvocation

maxInvocationDate	back to summary
private volatile long maxInvocationDate

maxInvocationTime	back to summary
private volatile long maxInvocationTime

minInvocationDate	back to summary
private volatile long minInvocationDate

minInvocationTime	back to summary
private volatile long minInvocationTime

nrOfInvocations	back to summary
private volatile int nrOfInvocations

prepareCount	back to summary
private volatile int prepareCount

prepareTime	back to summary
private volatile long prepareTime

query	back to summary
private final String query

totalInvocationTime	back to summary
private volatile long totalInvocationTime

Constructor Detail

QueryStats	back to summary
public QueryStats(String query)

Method Detail

add	back to summary
public synchronized void add(long invocationTime, long now)

equals back to summary

equals	back to summary
public boolean equals(Object other) Overrides java.lang.Object.equals. Doc from java.lang.Object.equals. Indicates whether some other object is "equal to" this one. The `equals` method implements an equivalence relation on non-null object references: It is reflexive: for any non-null reference value `x`, `x.equals(x)` should return `true`. It is symmetric: for any non-null reference values `x` and `y`, `x.equals(y)` should return `true` if and only if `y.equals(x)` returns `true`. It is transitive: for any non-null reference values `x`, `y`, and `z`, if `x.equals(y)` returns `true` and `y.equals(z)` returns `true`, then `x.equals(z)` should return `true`. It is consistent: for any non-null reference values `x` and `y`, multiple invocations of `x.equals(y)` consistently return `true` or consistently return `false`, provided no information used in `equals` comparisons on the objects is modified. For any non-null reference value `x`, `x.equals(null)` should return `false`. An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes. Parameters other:Object the reference object with which to compare. Returns:boolean `true` if this object is the same as the obj argument; `false` otherwise. Annotations @Override

public boolean equals(Object other)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

It is reflexive: for any non-null reference value x, x.equals(x) should return true.
It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters

other:Object: the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

Annotations

@Override

failure	back to summary
public synchronized void failure(long invocationTime, long now)

getCompositeData	back to summary
public CompositeDataSupport getCompositeData(final CompositeType type) throws OpenDataException

getFieldDescriptions	back to summary
public static String[] getFieldDescriptions()

getFieldNames	back to summary
public static String[] getFieldNames()

getFieldTypes	back to summary
public static OpenType<?>[] getFieldTypes()

getMaxInvocationDate	back to summary
public long getMaxInvocationDate()

getMaxInvocationTime	back to summary
public long getMaxInvocationTime()

getMinInvocationDate	back to summary
public long getMinInvocationDate()

getMinInvocationTime	back to summary
public long getMinInvocationTime()

getNrOfInvocations	back to summary
public int getNrOfInvocations()

getQuery	back to summary
public String getQuery()

getTotalInvocationTime	back to summary
public long getTotalInvocationTime()

hashCode back to summary

public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns:int

a hash code value for this object

Annotations

@Override

isOlderThan	back to summary
public boolean isOlderThan(SlowQueryReport.QueryStats other)

prepare	back to summary
public synchronized void prepare(long invocationTime)

toString back to summary

public String toString()

Overrides java.lang.Object.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object. Satisfying this method's contract implies a non-null result must be returned.

Returns:String

a string representation of the object

Annotations

@Override

org.apache.tomcat.jdbc.pool.interceptor back to summary

public Class SlowQueryReport.QueryStatsComparator

Class Inheritance

extends Object
implements Comparator<SlowQueryReport.QueryStats>

java.lang.Object
org.apache.tomcat.jdbc.pool.interceptor.SlowQueryReport.QueryStatsComparator

All Implemented Interfaces

java.util.Comparator

Compare QueryStats by their lastInvocation value. QueryStats that have never been updated, have a lastInvocation value of 0 which should be handled as the newest possible invocation.

Constructor Summary

Access	Constructor and Description
public	QueryStatsComparator()

Method Summary

Modifier and Type	Method and Description
public int	compare(SlowQueryReport.QueryStats the first object to be compared. stats1, SlowQueryReport.QueryStats the second object to be compared. stats2) Implements java.util.Comparator.compare. Compares its two arguments for order.
private static long	handleZero(long value)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Constructor Detail

QueryStatsComparator	back to summary
public QueryStatsComparator()

Method Detail

compare back to summary

public int compare(SlowQueryReport.QueryStats stats1, SlowQueryReport.QueryStats stats2)

Implements java.util.Comparator.compare.

Doc from java.util.Comparator.compare.

Compares its two arguments for order. Returns a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second.

The implementor must ensure that signum(compare(x, y)) == -signum(compare(y, x)) for all x and y. (This implies that compare(x, y) must throw an exception if and only if compare(y, x) throws an exception.)

The implementor must also ensure that the relation is transitive: ((compare(x, y)>0) && (compare(y, z)>0)) implies compare(x, z)>0.

Finally, the implementor must ensure that compare(x, y)==0 implies that signum(compare(x, z))==signum(compare(y, z)) for all z.

Parameters

stats1:SlowQueryReport.QueryStats: the first object to be compared.
stats2:SlowQueryReport.QueryStats: the second object to be compared.

Returns:int

a negative integer, zero, or a positive integer as the first argument is less than, equal to, or greater than the second.

Annotations

@Override

handleZero	back to summary
private static long handleZero(long value)

public Class SlowQueryReport

Nested and Inner Type Summary

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

public Class SlowQueryReport.QueryStats

Field Summary

Constructor Summary

Method Summary

Field Detail

Constructor Detail

Method Detail

public Class SlowQueryReport.QueryStatsComparator

Constructor Summary

Method Summary

Constructor Detail

Method Detail