Package org.apache.tomcat.dbcp.dbcp2

Class AbandonedTrace

java.lang.Object

org.apache.tomcat.dbcp.dbcp2.AbandonedTrace

All Implemented Interfaces:

AutoCloseable, TrackedUse

Direct Known Subclasses:

DelegatingConnection, DelegatingResultSet, DelegatingStatement

public class AbandonedTrace
extends Object
implements TrackedUse, AutoCloseable

Tracks connection usage for recovering and reporting abandoned connections.

The JDBC Connection, Statement, and ResultSet classes extend this class.

Since:

2.0

Constructor Summary

Constructors

Constructor	Description
AbandonedTrace()	Creates a new AbandonedTrace without config and without doing abandoned tracing.
AbandonedTrace(AbandonedTrace parent)	Constructs a new AbandonedTrace with a parent object.

Method Summary

Modifier and Type	Method	Description
protected void	addTrace(AbandonedTrace trace)	Adds an object to the list of objects being traced.
protected void	clearTrace()	Clears the list of objects being traced by this object.
void	close()	Subclasses can implement this nop.
protected void	close(Consumer<Exception> exceptionHandler)	Closes this resource and if an exception is caught, then calls exceptionHandler.
long	getLastUsed()	Deprecated.
Instant	getLastUsedInstant()	Gets the last Instant this object was used.
protected List<AbandonedTrace>	getTrace()	Gets a list of objects being traced by this object.
protected void	removeThisTrace(Object source)	Removes this object the source object is tracing.
protected void	removeTrace(AbandonedTrace trace)	Removes a child object this object is tracing.
protected void	setLastUsed()	Sets the time this object was last used to the current time in milliseconds.
protected void	setLastUsed(long lastUsedMillis)	Deprecated. Use setLastUsed(Instant)
protected void	setLastUsed(Instant lastUsedInstant)	Sets the instant this object was last used.

Methods inherited from class java.lang.Object

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

Constructor Details

AbandonedTrace

public AbandonedTrace()

Creates a new AbandonedTrace without config and without doing abandoned tracing.

AbandonedTrace

public AbandonedTrace(AbandonedTrace parent)

Constructs a new AbandonedTrace with a parent object.

Parameters:

parent - AbandonedTrace parent object.

Method Details

addTrace

protected void addTrace(AbandonedTrace trace)

Adds an object to the list of objects being traced.

Parameters:

trace - AbandonedTrace object to add.

clearTrace

protected void clearTrace()

Clears the list of objects being traced by this object.

close

public void close()
           throws SQLException

Subclasses can implement this nop.

Specified by:

close in interface AutoCloseable

Throws:

SQLException - Ignored here, for subclasses.

Since:

2.10.0

close

protected void close(Consumer<Exception> exceptionHandler)

Closes this resource and if an exception is caught, then calls exceptionHandler.

Parameters:

exceptionHandler - Consumes exception thrown closing this resource.

Since:

2.10.0

getLastUsed

@Deprecated
public long getLastUsed()

Deprecated.

Gets the last time this object was used in milliseconds.

Specified by:

getLastUsed in interface TrackedUse

Returns:

long time in milliseconds.

getLastUsedInstant

public Instant getLastUsedInstant()

Description copied from interface: TrackedUse

Gets the last Instant this object was used.

Starting with Java 9, the JRE SystemClock precision is increased usually down to microseconds, or tenth of microseconds, depending on the OS, Hardware, and JVM implementation.

Specified by:

getLastUsedInstant in interface TrackedUse

Returns:

the last Instant this object was used.

getTrace

protected List<AbandonedTrace> getTrace()

Gets a list of objects being traced by this object.

Returns:

List of objects.

removeThisTrace

protected void removeThisTrace(Object source)

Removes this object the source object is tracing.

Parameters:

source - The object tracing

Since:

2.7.0

removeTrace

protected void removeTrace(AbandonedTrace trace)

Removes a child object this object is tracing.

Parameters:

trace - AbandonedTrace object to remove.

setLastUsed

protected void setLastUsed()

Sets the time this object was last used to the current time in milliseconds.

setLastUsed

protected void setLastUsed(Instant lastUsedInstant)

Sets the instant this object was last used.

Parameters:

lastUsedInstant - instant.

Since:

2.10.0

setLastUsed

@Deprecated
protected void setLastUsed(long lastUsedMillis)

Deprecated.

Use setLastUsed(Instant)

Sets the time in milliseconds this object was last used.

Parameters:

lastUsedMillis - time in milliseconds.