Value-semantic type for options related to a queue.

#include <bmqt_queueoptions.h>

Public Types
typedef bsl::pair< SubscriptionHandle, Subscription >	HandleAndSubscription

typedef bsl::vector< HandleAndSubscription >	SubscriptionsSnapshot

Public Member Functions
	QueueOptions (bslma::Allocator *allocator=0)

	QueueOptions (const QueueOptions &other, bslma::Allocator *allocator=0)

QueueOptions &	operator= (const QueueOptions &rhs)
	Assign to this object the value of the specified `rhs` object.

QueueOptions &	setMaxUnconfirmedMessages (int value)

QueueOptions &	setMaxUnconfirmedBytes (int value)

QueueOptions &	setConsumerPriority (int value)

QueueOptions &	setSuspendsOnBadHostHealth (bool value)
	Set whether the queue suspends operation while host is unhealthy.

QueueOptions &	merge (const QueueOptions &other)

bool	addOrUpdateSubscription (bsl::string *errorDescription, const SubscriptionHandle &handle, const Subscription &subscription)

bool	removeSubscription (const SubscriptionHandle &handle)

void	removeAllSubscriptions ()

int	maxUnconfirmedMessages () const
	Get the number for the maxUnconfirmedMessages parameter.

int	maxUnconfirmedBytes () const
	Get the number for the maxUnconfirmedBytes parameter.

int	consumerPriority () const
	Get the number for the consumerPriority parameter.

bool	suspendsOnBadHostHealth () const
	Get whether the queue suspends operation while host is unhealthy.

bool	hasMaxUnconfirmedMessages () const

bool	hasMaxUnconfirmedBytes () const

bool	hasConsumerPriority () const

bool	hasSuspendsOnBadHostHealth () const

bool	loadSubscription (Subscription *subscription, const SubscriptionHandle &handle) const

void	loadSubscriptions (SubscriptionsSnapshot *snapshot) const

bsl::ostream &	print (bsl::ostream &stream, int level=0, int spacesPerLevel=4) const

Static Public Attributes
static const int	k_CONSUMER_PRIORITY_MIN
	Constant representing the minimum valid consumer priority.

static const int	k_CONSUMER_PRIORITY_MAX
	Constant representing the maximum valid consumer priority.

static const int	k_DEFAULT_MAX_UNCONFIRMED_MESSAGES

static const int	k_DEFAULT_MAX_UNCONFIRMED_BYTES

static const int	k_DEFAULT_CONSUMER_PRIORITY

static const bool	k_DEFAULT_SUSPENDS_ON_BAD_HOST_HEALTH

Member Typedef Documentation

◆ HandleAndSubscription

typedef bsl::pair<SubscriptionHandle, Subscription> BloombergLP::bmqt::QueueOptions::HandleAndSubscription

◆ SubscriptionsSnapshot

typedef bsl::vector<HandleAndSubscription> BloombergLP::bmqt::QueueOptions::SubscriptionsSnapshot

loadSubscriptions return types

EXPERIMENTAL. Do not use until this feature is announced.

Constructor & Destructor Documentation

◆ QueueOptions() [1/2]

BloombergLP::bmqt::QueueOptions::QueueOptions ( bslma::Allocator * allocator = 0 )

explicit

Create a new QueueOptions using the optionally specified allocator.

◆ QueueOptions() [2/2]

BloombergLP::bmqt::QueueOptions::QueueOptions	(	const QueueOptions &	other,
		bslma::Allocator *	allocator = `0`
	)

Create a new QueueOptions by copying values from the specified other, using the optionally specified allocator.

Member Function Documentation

◆ operator=()

QueueOptions & BloombergLP::bmqt::QueueOptions::operator= ( const QueueOptions & rhs )

inline

◆ setMaxUnconfirmedMessages()

QueueOptions & BloombergLP::bmqt::QueueOptions::setMaxUnconfirmedMessages ( int value )

inline

Set the maxUnconfirmedMessages to the specified value. The behavior is undefined unless value >= 0. If the specified value is set to 0, it means that the consumer does not receive any messages. This might be useful when the consumer is shutting down and wants to process only pending messages, or when it is unable to process new messages because of transient issues.

References BloombergLP::bmqt::Subscription::setMaxUnconfirmedMessages().

◆ setMaxUnconfirmedBytes()

QueueOptions & BloombergLP::bmqt::QueueOptions::setMaxUnconfirmedBytes ( int value )

inline

Set the maxUnconfirmedBytes to the specified value. The behavior is undefined unless value >= 0.

References BloombergLP::bmqt::Subscription::setMaxUnconfirmedBytes().

◆ setConsumerPriority()

QueueOptions & BloombergLP::bmqt::QueueOptions::setConsumerPriority ( int value )

inline

Set the consumerPriority to the specified value. The behavior is undefined unless 'k_CONSUMER_PRIORITY_MIN <= value <= k_CONSUMER_PRIORITY_MAX'

References BloombergLP::bmqt::Subscription::setConsumerPriority().

◆ setSuspendsOnBadHostHealth()

QueueOptions & BloombergLP::bmqt::QueueOptions::setSuspendsOnBadHostHealth ( bool value )

inline

◆ merge()

QueueOptions & BloombergLP::bmqt::QueueOptions::merge ( const QueueOptions & other )

"Merges" another QueueOptions into this one, by invoking setF(other.F()) for all fields F for which other.hasF() is true. Returns the instance on which the method was invoked.

◆ addOrUpdateSubscription()

bool BloombergLP::bmqt::QueueOptions::addOrUpdateSubscription	(	bsl::string *	errorDescription,
		const SubscriptionHandle &	handle,
		const Subscription &	subscription
	)

Add, or update if it exists, the specified subscription for the specified handle. Return true on success, otherwise return false and load the specified errorDescription with a description of the error. Note that errorDescription may be null if the caller does not care about getting error messages, but users are strongly encouraged to log error string if this API returns failure.

EXPERIMENTAL. Do not use until this feature is announced.

◆ removeSubscription()

bool BloombergLP::bmqt::QueueOptions::removeSubscription ( const SubscriptionHandle & handle )

Return false if subscription does not exist.

EXPERIMENTAL. Do not use until this feature is announced.

◆ removeAllSubscriptions()

void BloombergLP::bmqt::QueueOptions::removeAllSubscriptions ( )

Remove all subscriptions.

EXPERIMENTAL. Do not use until this feature is announced.

◆ maxUnconfirmedMessages()

int BloombergLP::bmqt::QueueOptions::maxUnconfirmedMessages ( ) const

inline

References BloombergLP::bmqt::Subscription::maxUnconfirmedMessages().

Referenced by BloombergLP::bmqt::operator!=(), and BloombergLP::bmqt::operator==().

◆ maxUnconfirmedBytes()

int BloombergLP::bmqt::QueueOptions::maxUnconfirmedBytes ( ) const

inline

References BloombergLP::bmqt::Subscription::maxUnconfirmedBytes().

Referenced by BloombergLP::bmqt::operator!=(), and BloombergLP::bmqt::operator==().

◆ consumerPriority()

int BloombergLP::bmqt::QueueOptions::consumerPriority ( ) const

inline

References BloombergLP::bmqt::Subscription::consumerPriority().

Referenced by BloombergLP::bmqt::operator!=(), and BloombergLP::bmqt::operator==().

◆ suspendsOnBadHostHealth()

bool BloombergLP::bmqt::QueueOptions::suspendsOnBadHostHealth ( ) const

inline

References k_DEFAULT_SUSPENDS_ON_BAD_HOST_HEALTH.

Referenced by BloombergLP::bmqt::operator!=(), and BloombergLP::bmqt::operator==().

◆ hasMaxUnconfirmedMessages()

bool BloombergLP::bmqt::QueueOptions::hasMaxUnconfirmedMessages ( ) const

inline

Returns whether maxUnconfirmedMessages has been set for this object, or whether it implicitly holds k_DEFAULT_MAX_UNCONFIRMED_MESSAGES.

References BloombergLP::bmqt::Subscription::hasMaxUnconfirmedMessages().

◆ hasMaxUnconfirmedBytes()

bool BloombergLP::bmqt::QueueOptions::hasMaxUnconfirmedBytes ( ) const

inline

Returns whether maxUnconfirmedBytes has been set for this object, or whether it implicitly holds k_DEFAULT_MAX_UNCONFIRMED_BYTES.

References BloombergLP::bmqt::Subscription::hasMaxUnconfirmedBytes().

◆ hasConsumerPriority()

bool BloombergLP::bmqt::QueueOptions::hasConsumerPriority ( ) const

inline

Returns whether consumerPriority has been set for this object, or whether it implicitly holds k_DEFAULT_CONSUMER_PRIORITY.

References BloombergLP::bmqt::Subscription::hasConsumerPriority().

◆ hasSuspendsOnBadHostHealth()

bool BloombergLP::bmqt::QueueOptions::hasSuspendsOnBadHostHealth ( ) const

inline

Returns whether suspendsOnBadHostHealth has been set for this object, or whether it implicitly holds k_DEFAULT_SUSPENDS_ON_BAD_HOST_HEALTH.

◆ loadSubscription()

bool BloombergLP::bmqt::QueueOptions::loadSubscription	(	Subscription *	subscription,
		const SubscriptionHandle &	handle
	)		const

Return false if subscription does not exist.

EXPERIMENTAL. Do not use until this feature is announced.

◆ loadSubscriptions()

void BloombergLP::bmqt::QueueOptions::loadSubscriptions ( SubscriptionsSnapshot * snapshot ) const

Load all handles and subscriptions into the specified snapshot.

EXPERIMENTAL. Do not use until this feature is announced.

◆ print()

bsl::ostream & BloombergLP::bmqt::QueueOptions::print	(	bsl::ostream &	stream,
		int	level = `0`,
		int	spacesPerLevel = `4`
	)		const

Format this object to the specified output stream at the (absolute value of) the optionally specified indentation level and return a reference to stream. If level is specified, optionally specify spacesPerLevel, the number of spaces per indentation level for this and all of its nested objects. If level is negative, suppress indentation of the first line. If spacesPerLevel is negative format the entire output on one line, suppressing all but the initial indentation (as governed by level). If stream is not valid on entry, this operation has no effect.

Referenced by BloombergLP::bmqa::operator<<(), and BloombergLP::bmqt::operator<<().

Member Data Documentation

◆ k_CONSUMER_PRIORITY_MIN

const int BloombergLP::bmqt::QueueOptions::k_CONSUMER_PRIORITY_MIN

static

◆ k_CONSUMER_PRIORITY_MAX

const int BloombergLP::bmqt::QueueOptions::k_CONSUMER_PRIORITY_MAX

static

◆ k_DEFAULT_MAX_UNCONFIRMED_MESSAGES

const int BloombergLP::bmqt::QueueOptions::k_DEFAULT_MAX_UNCONFIRMED_MESSAGES

static

◆ k_DEFAULT_MAX_UNCONFIRMED_BYTES

const int BloombergLP::bmqt::QueueOptions::k_DEFAULT_MAX_UNCONFIRMED_BYTES

static

◆ k_DEFAULT_CONSUMER_PRIORITY

const int BloombergLP::bmqt::QueueOptions::k_DEFAULT_CONSUMER_PRIORITY

static

◆ k_DEFAULT_SUSPENDS_ON_BAD_HOST_HEALTH

const bool BloombergLP::bmqt::QueueOptions::k_DEFAULT_SUSPENDS_ON_BAD_HOST_HEALTH

static

Referenced by suspendsOnBadHostHealth().

The documentation for this class was generated from the following file:

bmqt/bmqt_queueoptions.h

Public Types

Public Member Functions

Static Public Attributes

Member Typedef Documentation

◆ HandleAndSubscription

◆ SubscriptionsSnapshot

Constructor & Destructor Documentation

◆ QueueOptions() [1/2]

◆ QueueOptions() [2/2]

Member Function Documentation

◆ operator=()

◆ setMaxUnconfirmedMessages()

◆ setMaxUnconfirmedBytes()

◆ setConsumerPriority()

◆ setSuspendsOnBadHostHealth()

◆ merge()

◆ addOrUpdateSubscription()

◆ removeSubscription()

◆ removeAllSubscriptions()

◆ maxUnconfirmedMessages()

◆ maxUnconfirmedBytes()

◆ consumerPriority()

◆ suspendsOnBadHostHealth()

◆ hasMaxUnconfirmedMessages()

◆ hasMaxUnconfirmedBytes()

◆ hasConsumerPriority()

◆ hasSuspendsOnBadHostHealth()

◆ loadSubscription()

◆ loadSubscriptions()

◆ print()

Member Data Documentation

◆ k_CONSUMER_PRIORITY_MIN

◆ k_CONSUMER_PRIORITY_MAX

◆ k_DEFAULT_MAX_UNCONFIRMED_MESSAGES

◆ k_DEFAULT_MAX_UNCONFIRMED_BYTES

◆ k_DEFAULT_CONSUMER_PRIORITY

◆ k_DEFAULT_SUSPENDS_ON_BAD_HOST_HEALTH