com.dxfeed.event

Interface LastingEvent<T>

Type Parameters:

T - type of the event symbol for this event type.

All Superinterfaces:

EventType<T>, Serializable

All Known Implementing Classes:

Candle, Configuration, DailyCandle, Greeks, Profile, Quote, Summary, TheoPrice, Trade, TradeBase, TradeETH, Underlying

public interface LastingEvent<T>
extends EventType<T>

Represents up-to-date information about some condition or state of an external entity that updates in real-time. For example, a Quote is an up-to-date information about best bid and best offer for a specific symbol.

Lasting events are conflated for each symbol. Last event for each symbol is always delivered to event listeners on subscription, but intermediate (next-to-last) events are not queued anywhere, they are simply discarded as stale events. More recent events represent an up-to-date information about some external entity.

Lasting events can be used with DXFeed.getLastEvent and DXFeed.getLastEvents methods to retrieve last events for each symbol.

Note, that subscription to all lasting events of a specific type via WildcardSymbol.ALL symbol object does not benefit from the above advantages of lasting events.

Method Summary

Methods inherited from interface com.dxfeed.event.EventType

getEventSymbol, getEventTime, setEventSymbol, setEventTime