Package org.apache.jackrabbit.oak.spi.gc

Class DelegatingGCMonitor

java.lang.Object

org.apache.jackrabbit.oak.spi.gc.DelegatingGCMonitor

All Implemented Interfaces:

GCMonitor

public class DelegatingGCMonitor
extends Object
implements GCMonitor

This GCMonitor implementation simply delegates all its call to registered monitors.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.jackrabbit.oak.spi.gc.GCMonitor

GCMonitor.Empty

Field Summary

Fields inherited from interface org.apache.jackrabbit.oak.spi.gc.GCMonitor

EMPTY

Constructor Summary

Constructors

Constructor	Description
DelegatingGCMonitor()	New instance without any delegate.
DelegatingGCMonitor(@NotNull Collection<? extends GCMonitor> gcMonitors)	New instance with an initial set of delegates (which cannot be unregistered).

Method Summary

Modifier and Type	Method	Description
void	cleaned(long reclaimedSize, long currentSize)	The cleanup phase of the garbage collection process terminated successfully.
void	compacted()	The compaction phase of the garbage collection process terminated successfully.
void	error(String message, Exception exception)	An error caused the garbage collection process to terminate prematurely.
void	info(String message, Object... arguments)	Informal notification on the progress of garbage collection.
Registration	registerGCMonitor(@NotNull GCMonitor gcMonitor)	Register a GCMonitor.
void	skipped(String reason, Object... arguments)	A garbage collection cycle is skipped for a specific reason.
void	updateStatus(String status)	The garbage collection entered a new phase e.g.
void	warn(String message, Object... arguments)	Warning about a condition that might have adverse effects on the overall garbage collection process but does not prevent the process from running.

Methods inherited from class java.lang.Object

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

Constructor Detail

DelegatingGCMonitor

public DelegatingGCMonitor(@NotNull
                           @NotNull Collection<? extends GCMonitor> gcMonitors)

New instance with an initial set of delegates (which cannot be unregistered).

Parameters:

gcMonitors -

DelegatingGCMonitor

public DelegatingGCMonitor()

New instance without any delegate.

Method Detail

registerGCMonitor

public Registration registerGCMonitor(@NotNull
                                      @NotNull GCMonitor gcMonitor)

Register a GCMonitor.

Parameters:

gcMonitor -

Returns:

a Registration instance, which removes the registered GCMonitor instance when called.

info

public void info(String message,
                 Object... arguments)

Description copied from interface: GCMonitor

Informal notification on the progress of garbage collection.

Specified by:

info in interface GCMonitor

Parameters:

message - The message with {} place holders for the arguments

warn

public void warn(String message,
                 Object... arguments)

Description copied from interface: GCMonitor

Warning about a condition that might have adverse effects on the overall garbage collection process but does not prevent the process from running.

Specified by:

warn in interface GCMonitor

Parameters:

message - The message with {} place holders for the arguments

error

public void error(String message,
                  Exception exception)

Description copied from interface: GCMonitor

An error caused the garbage collection process to terminate prematurely.

Specified by:

error in interface GCMonitor

skipped

public void skipped(String reason,
                    Object... arguments)

Description copied from interface: GCMonitor

A garbage collection cycle is skipped for a specific reason.

Specified by:

skipped in interface GCMonitor

Parameters:

reason - The reason with {} place holders for the arguments

compacted

public void compacted()

Description copied from interface: GCMonitor

The compaction phase of the garbage collection process terminated successfully.

Specified by:

compacted in interface GCMonitor

cleaned

public void cleaned(long reclaimedSize,
                    long currentSize)

Description copied from interface: GCMonitor

The cleanup phase of the garbage collection process terminated successfully.

Specified by:

cleaned in interface GCMonitor

Parameters:

reclaimedSize - number of bytes reclaimed

currentSize - number of bytes after garbage collection

updateStatus

public void updateStatus(String status)

Description copied from interface: GCMonitor

The garbage collection entered a new phase e.g. idle, estimation, etc.

Specified by:

updateStatus in interface GCMonitor

Parameters:

status - short summary of the GC phase