bobocep.cep.event.history.BoboHistory

class bobocep.cep.event.history.BoboHistory(events: Dict[str, List[BoboEvent]])[source]

Bases: BoboJSONable

An event history.

__init__(events: Dict[str, List[BoboEvent]])[source]

Parameters:: events – The history of events. Keys are group names. Values are lists of BoboEvent instances associated with a group.

all_events() → Tuple[BoboEvent, ...][source]

Returns:: All history events in a tuple.

all_groups() → Tuple[str, ...][source]

Returns:: All history groups in a tuple.

property events: Dict[str, List[BoboEvent]]

Returns:: All history events, indexed by group.

first() → BoboEvent | None[source]

Returns:: The BoboEvent with the oldest timestamp, if there is at least one BoboEvent in the history.

static from_json_dict(d: dict) → BoboHistory[source]

Parameters:: d – A JSON dict representation of the history.
Returns:: A new instance of the history.

static from_json_str(j: str) → BoboHistory[source]

Parameters:: j – A JSON str representation of the history.
Returns:: A new instance of the history.

group(group: str) → Tuple[BoboEvent, ...][source]

Parameters:: group – A group name.
Returns:: The BoboEvent instances associated with group.

last() → BoboEvent | None[source]

Returns:: The BoboEvent with the most recent timestamp, if there is at least one BoboEvent in the history.

size() → int[source]

Returns:: The total number of history events across all groups.

to_json_dict() → dict[source]

Returns:: A JSON dict representation of the history.

to_json_str() → str[source]

Returns:: A JSON str representation of the history.