Package io.trino.execution

Class QueryTracker<T extends QueryTracker.TrackedQuery>

java.lang.Object

io.trino.execution.QueryTracker<T>

@ThreadSafe
public class QueryTracker<T extends QueryTracker.TrackedQuery>
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	QueryTracker.TrackedQuery

Constructor Summary

Constructors

Constructor	Description
QueryTracker(QueryManagerConfig queryManagerConfig, ScheduledExecutorService queryManagementExecutor)

Method Summary

Modifier and Type	Method	Description
boolean	addQuery(T execution)
void	expireQuery(QueryId queryId)	Query is finished and expiration should begin.
Collection<T>	getAllQueries()
int	getAllQueriesCount()
int	getExpiredQueriesCount()
int	getPrunedQueriesCount()
T	getQuery(QueryId queryId)
boolean	hasQuery(QueryId queryId)
void	start()
void	stop()
Optional<T>	tryGetQuery(QueryId queryId)

Methods inherited from class java.lang.Object

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

Constructor Details

QueryTracker

public QueryTracker(QueryManagerConfig queryManagerConfig,
 ScheduledExecutorService queryManagementExecutor)

Method Details

start

public void start()

stop

public void stop()

getAllQueries

public Collection<T> getAllQueries()

getQuery

public T getQuery(QueryId queryId)
           throws NoSuchElementException

Throws:

NoSuchElementException

hasQuery

public boolean hasQuery(QueryId queryId)

tryGetQuery

public Optional<T> tryGetQuery(QueryId queryId)

addQuery

public boolean addQuery(T execution)

expireQuery

public void expireQuery(QueryId queryId)

Query is finished and expiration should begin.

getAllQueriesCount

public int getAllQueriesCount()

getExpiredQueriesCount

public int getExpiredQueriesCount()

getPrunedQueriesCount

public int getPrunedQueriesCount()