Data storage

The policyengine_core.data_storage module contains two classes that are used to handle the storage of data in simulations.

InMemoryStorage

class policyengine_core.data_storage.in_memory_storage.InMemoryStorage(is_eternal: bool)

Bases: object

Low-level class responsible for storing and retrieving calculated vectors in memory

clone() → InMemoryStorage

delete(period: Period = None, branch_name: str = 'default') → None

get(period: Period, branch_name: str = 'default') → Union[Buffer, _SupportsArray[dtype[Any]], _NestedSequence[_SupportsArray[dtype[Any]]], bool, int, float, complex, str, bytes, _NestedSequence[Union[bool, int, float, complex, str, bytes]]]

get_known_branch_periods() → list

get_known_periods() → list

get_memory_usage() → dict

is_eternal: bool

put(value: Union[Buffer, _SupportsArray[dtype[Any]], _NestedSequence[_SupportsArray[dtype[Any]]], bool, int, float, complex, str, bytes, _NestedSequence[Union[bool, int, float, complex, str, bytes]]], period: Period, branch_name: str = 'default') → None

OnDiskStorage

class policyengine_core.data_storage.on_disk_storage.OnDiskStorage(storage_dir: str, is_eternal: bool = False, preserve_storage_dir: bool = False)

Bases: object

Low-level class responsible for storing and retrieving calculated vectors on disk

delete(period: Period = None, branch_name: str = 'default') → None

get(period: Period, branch_name: str = 'default') → Union[Buffer, _SupportsArray[dtype[Any]], _NestedSequence[_SupportsArray[dtype[Any]]], bool, int, float, complex, str, bytes, _NestedSequence[Union[bool, int, float, complex, str, bytes]]]

get_known_branch_periods() → list

get_known_periods() → list

put(value: Union[Buffer, _SupportsArray[dtype[Any]], _NestedSequence[_SupportsArray[dtype[Any]]], bool, int, float, complex, str, bytes, _NestedSequence[Union[bool, int, float, complex, str, bytes]]], period: Period, branch_name: str = 'default') → None

restore() → None