org.jclouds.compute.predicates.internal

Class TrueIfNullOrDeletedRefreshAndDoubleCheckOnFalse<S extends Enum<S>,C extends ComputeMetadataIncludingStatus<S>>

java.lang.Object

org.jclouds.compute.predicates.internal.TrueIfNullOrDeletedRefreshAndDoubleCheckOnFalse<S,C>

All Implemented Interfaces:

com.google.common.base.Predicate<AtomicReference<C>>

Direct Known Subclasses:

AtomicImageDeleted, AtomicNodeTerminated

public abstract class TrueIfNullOrDeletedRefreshAndDoubleCheckOnFalse<S extends Enum<S>,C extends ComputeMetadataIncludingStatus<S>>
extends Object
implements com.google.common.base.Predicate<AtomicReference<C>>

Author:

Adrian Cole

Field Summary

Fields

Modifier and Type	Field and Description
protected S	deletedStatus
protected Logger	logger

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	TrueIfNullOrDeletedRefreshAndDoubleCheckOnFalse(S deletedStatus)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	apply(AtomicReference<C> atomicResource)
boolean	checkStatus(C resource)
protected abstract C	refreshOrNull(C resource)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.google.common.base.Predicate

equals

Field Detail

deletedStatus

protected final S extends Enum<S> deletedStatus

logger

protected Logger logger

Constructor Detail

TrueIfNullOrDeletedRefreshAndDoubleCheckOnFalse

protected TrueIfNullOrDeletedRefreshAndDoubleCheckOnFalse(S deletedStatus)

Method Detail

apply

public boolean apply(AtomicReference<C> atomicResource)

Specified by:

apply in interface com.google.common.base.Predicate<AtomicReference<C extends ComputeMetadataIncludingStatus<S>>>

checkStatus

public boolean checkStatus(C resource)

refreshOrNull

protected abstract C refreshOrNull(C resource)