Concurrency Control

• Read-Write locks

Data Model

Foreign Keys[04]

• Documents can refer each other and can be joined by their primary keys

Indexes

EJDB2 defines indexes at the collection level and supports indexes of any field of JSON document. Supported unique and non-unique indexes for string, integer, floating point, array JSON value types

Logging[05]

Query Execution

Query Interface

EJDB provides native query execution methods API. HTTP/Websocket endpoint can activated for querying and data modifications over network.

Storage Architecture

Storage Organization

System Architecture