SQLiteEntityStore

class langchain.memory.entity.SQLiteEntityStore

Bases: BaseEntityStore

Deprecated since version 0.3.1: Please see the migration guide at: https://python.langchain.com/docs/versions/migrating_memory/

SQLite-backed Entity store

Create a new model by parsing and validating input data from keyword arguments.

Raises [ValidationError][pydantic_core.ValidationError] if the input data cannot be validated to form a valid model.

self is explicitly positional-only to allow self as a field name.

param conn: Any = None

param session_id: str = 'default'

param table_name: str = 'memory_store'

clear() → None

Delete all entities from store.

Return type:

None

delete(key: str) → None

Delete entity value from store.

Parameters:

key (str)

Return type:

None

exists(key: str) → bool

Check if entity exists in store.

Parameters:

key (str)

Return type:

bool

get(key: str, default: str | None = None) → str | None

Get entity value from store.

Parameters:

• key (str)

• default (str | None)

Return type:

str | None

set(key: str, value: str | None) → None

Set entity value in store.

Parameters:

• key (str)

• value (str | None)

Return type:

None

property full_table_name: str