Package net.groboclown.retval.monitor

Class NoOpObservedMonitor<T>

java.lang.Object

net.groboclown.retval.monitor.NoOpObservedMonitor<T>

All Implemented Interfaces:

ObservedMonitor<T>

public class NoOpObservedMonitor<T>
extends java.lang.Object
implements ObservedMonitor<T>

A monitor that performs no actual monitoring.

Nested Class Summary

Nested classes/interfaces inherited from interface net.groboclown.retval.monitor.ObservedMonitor

ObservedMonitor.Listener

Field Summary

Fields

Modifier and Type	Field	Description
static net.groboclown.retval.monitor.NoOpObservedMonitor.NoOpListener	LISTENER

Method Summary

Modifier and Type	Method	Description
static <T> NoOpObservedMonitor<T>	getInstance()	Type-cast the placeholder No Op implementation to the needed format.
boolean	isTraceEnabled()	Is tracing enabled? If not enabled, then more memory efficient versions of objects may be used.
ObservedMonitor.Listener	registerInstance(T instance)	Register a new observable object with the monitor.

Methods inherited from class java.lang.Object

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

Field Detail

LISTENER

public static final net.groboclown.retval.monitor.NoOpObservedMonitor.NoOpListener LISTENER

Method Detail

getInstance

@Nonnull
public static <T> NoOpObservedMonitor<T> getInstance()

Type-cast the placeholder No Op implementation to the needed format.

Type Parameters:

T - required type value

Returns:

the static instance

registerInstance

@Nonnull
public ObservedMonitor.Listener registerInstance(@Nonnull
                                                 T instance)

Description copied from interface: ObservedMonitor

Register a new observable object with the monitor. The returned value must be immutable in all but unit test environments.

Specified by:

registerInstance in interface ObservedMonitor<T>

Parameters:

instance - instance to register

Returns:

a callback listener for when the close action occurs.

isTraceEnabled

public boolean isTraceEnabled()

Description copied from interface: ObservedMonitor

Is tracing enabled? If not enabled, then more memory efficient versions of objects may be used.

Specified by:

isTraceEnabled in interface ObservedMonitor<T>

Returns:

true if close tracing is enabled, false otherwise.