Intermediate object between the Usd Stage and any clients that needs asynchronous handling and upstream filtering of notices. More...

#include <broker.h>

Inheritance diagram for unf::Broker:

Public Member Functions
UNF_API	Broker (const Broker &)=delete
	Remove default copy constructor.

UNF_API Broker &	operator= (const Broker &)=delete
	Remove default assignment operator.

UNF_API const PXR_NS::UsdStageWeakPtr	GetStage () const
	Return Usd Stage associated with the broker.

UNF_API bool	IsInTransaction ()
	Indicate whether a notice transaction has been started. More...

UNF_API void	BeginTransaction (CapturePredicate predicate=CapturePredicate::Default())
	Start a notice transaction. More...

UNF_API void	BeginTransaction (const CapturePredicateFunc &)
	Start a notice transaction with a capture predicate function. More...

UNF_API void	EndTransaction ()
	Stop a notice transaction. More...

template<class UnfNotice , class... Args>
void	Send (Args &&... args)
	Create and send a UnfNotice::StageNotice notice via the broker. More...

UNF_API void	Send (const UnfNotice::StageNoticeRefPtr &)
	Send a UnfNotice::StageNotice notice via the broker. More...

UNF_API DispatcherPtr &	GetDispatcher (std::string identifier)
	Return dispatcher reference associated with `identifier`.

template<class T >
void	AddDispatcher ()
	Create and register a new dispatcher. More...

UNF_API void	Reset ()
	Un-register broker. More...

Static Public Member Functions
static UNF_API BrokerPtr	Create (const PXR_NS::UsdStageWeakPtr &stage)
	Create a broker from a Usd Stage. More...

static UNF_API void	ResetAll ()
	Un-register all brokers.

Detailed Description

Intermediate object between the Usd Stage and any clients that needs asynchronous handling and upstream filtering of notices.

Member Function Documentation

◆ Create()

static UNF_API BrokerPtr unf::Broker::Create ( const PXR_NS::UsdStageWeakPtr & stage )

static

Create a broker from a Usd Stage.

If a broker has already been created from this stage, it will be returned. Otherwise, a new one will be created and returned.

◆ IsInTransaction()

UNF_API bool unf::Broker::IsInTransaction ( )

Indicate whether a notice transaction has been started.

See also: BeginTransaction

◆ BeginTransaction() [1/2]

UNF_API void unf::Broker::BeginTransaction ( CapturePredicate predicate = CapturePredicate::Default() )

Start a notice transaction.

Notices derived from UnfNotice::StageNotice will be held during the transaction and emitted at the end.

By default, all UnfNotice::StageNotice notices will be captured during the entire scope of the transaction. A CapturePredicate can be passed to influence which notices are captured. Notices that are not captured will not be emitted.

Warning: Each transaction started must be closed with EndTransaction. It is preferrable to use NoticeTransaction over this API to safely manage transactions.

See also: EndTransaction; NoticeTransaction

◆ BeginTransaction() [2/2]

UNF_API void unf::Broker::BeginTransaction ( const CapturePredicateFunc & )

Start a notice transaction with a capture predicate function.

The following example will filter out all 'Foo' notices emitted during the transaction.

broker->BeginTransaction([&](const unf::UnfNotice::StageNotice& n) {
    return (n.GetTypeId() != typeid(Foo).name());
});

Warning: Each transaction started must be closed with EndTransaction. It is preferrable to use NoticeTransaction over this API to safely manage transactions.

See also: EndTransaction; NoticeTransaction

◆ EndTransaction()

UNF_API void unf::Broker::EndTransaction ( )

Stop a notice transaction.

This will trigger the emission of all captured UnfNotice::StageNotice notices. Each notice type will be consolidated before emission if applicable.

Warning: It is preferrable to use NoticeTransaction over this API to safely manage transactions.

See also: BeginTransaction; NoticeTransaction

◆ Send() [1/2]

template<class UnfNotice , class... Args>

void unf::Broker::Send ( Args &&... args )

Create and send a UnfNotice::StageNotice notice via the broker.

Note: The associated stage will be used as sender.

◆ Send() [2/2]

UNF_API void unf::Broker::Send ( const UnfNotice::StageNoticeRefPtr & )

Send a UnfNotice::StageNotice notice via the broker.

Note: The associated stage will be used as sender.

◆ AddDispatcher()

template<class T >

void unf::Broker::AddDispatcher

Create and register a new dispatcher.

This will call the Dispatcher::Register method.

◆ Reset()

UNF_API void unf::Broker::Reset ( )

Un-register broker.

Warning: The broker is not safe to use after this call.

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

broker.h

Public Member Functions

Static Public Member Functions