Marks all event types that can be received via dxFeed API. More...
#include <EventType.hpp>
Inheritance diagram for EventType:
Public Types | |
| using | Ptr = std::shared_ptr<EventType> |
| The alias to a type of shared pointer to the EventType object. | |
| Public Types inherited from SharedEntity | |
| using | Ptr = std::shared_ptr<SharedEntity> |
| The alias to a type of shared pointer to the SharedEntity object. | |
Public Member Functions | |
| virtual std::int64_t | getEventTime () const noexcept |
| Returns time when event was created or zero when time is not available. | |
| virtual void | setEventTime (std::int64_t) noexcept |
| Changes event creation time. | |
| virtual void * | toGraal () const =0 |
| Allocates memory for the dxFeed Graal SDK structure (recursively if necessary). | |
| std::string | toString () const noexcept override |
| Returns a string representation of the current object. | |
| Public Member Functions inherited from SharedEntity | |
| template<typename T > | |
| bool | is () const noexcept |
| Checks that pointer to the current type could be converted to type T* In other words: whether type T belongs to the type hierarchy in which the current type resides. | |
| template<typename T > | |
| std::shared_ptr< T > | sharedAs () noexcept |
| Returns a pointer to the current object wrapped in a smart pointer to type T. | |
| template<typename T > | |
| std::shared_ptr< T > | sharedAs () const noexcept |
| Returns a pointer to the current object wrapped in a smart pointer to type T. | |
| Public Member Functions inherited from Entity | |
| virtual | ~Entity () noexcept=default |
| The default virtual d-tor. | |
Detailed Description
Marks all event types that can be received via dxFeed API.
Events are considered instantaneous, non-persistent, and unconflateable (each event is individually delivered) unless they implement one of interfaces defined in this package to further refine their meaning.
Event types are POCO (plain old cpp objects, not POD) that follow bean naming convention with getters and setters for their properties. All event types are serializable, because they are transferred over network from publishers to data feed consumers. However, they are using custom serialization format for this purpose.
- See also
- DXFeed
Member Function Documentation
◆ getEventTime()
|
inlinevirtualnoexcept |
Returns time when event was created or zero when time is not available.
This event time is available only when the corresponding DXEndpoint is created with DXENDPOINT_EVENT_TIME_PROPERTY and the data source has embedded event times. This is typically true only for data events that are read from historical tape files and from OnDemandService. Events that are coming from a network connections do not have an embedded event time information and this method will return zero for them, meaning that event was received just now.
Default implementation returns 0.
- Returns
- The difference, measured in milliseconds, between the event creation time and midnight, January 1, 1970 UTC or zero when time is not available.
Reimplemented in Candle, MarketEvent, and Message.
◆ setEventTime()
|
inlinevirtualnoexcept |
Changes event creation time.
Default implementation does nothing.
- Parameters
-
eventTime the difference, measured in milliseconds, between the event creation time and midnight, January 1, 1970 UTC.
Reimplemented in Candle, MarketEvent, and Message.
◆ toGraal()
|
pure virtual |
Allocates memory for the dxFeed Graal SDK structure (recursively if necessary).
Fills the dxFeed Graal SDK structure's fields by the data of the current entity (recursively if necessary). Returns the pointer to the filled structure.
- Returns
- The pointer to the filled dxFeed Graal SDK structure
Implemented in AnalyticOrder, Candle, Greeks, Message, OptionSale, Order, OtcMarketsOrder, Profile, Quote, Series, SpreadOrder, Summary, TheoPrice, TimeAndSale, Trade, TradeETH, and Underlying.
◆ toString()
|
inlineoverridevirtualnoexcept |
Returns a string representation of the current object.
- Returns
- a string representation
Reimplemented from SharedEntity.
Reimplemented in Greeks, Message, OptionSale, Order, OtcMarketsOrder, Profile, Quote, Series, SpreadOrder, Summary, TheoPrice, TimeAndSale, Trade, TradeETH, and Underlying.
