Cyclop is a tree-based entity store that verifies the complete integrity of an entity on save.

• An entity has an ID, that is unique between all entities.

• An entity has an EntityType, to know wht set of properties to expect from this entity.

• An entity has a Data field, that contains all the properties of an entity encoded with MsgPack.

Each entity types has a method Inspect for verifying the integrity of a given entity with a custom business logic.

If Inspect returns a list warnings, which is empty if the entity is in perfect condition.

All the warning are put into a centralized store that can be looked up with the entity's ID.

All the entities (and their relations to each others) and warnings are stored in a relational database (SQL Server, PostgreSQL, MySQL, etc...).

• ID: ID of the type

• ID: ID of an entity
• Type: Foreign key to Types.ID
• Data: MsgPack blob

• ParentID: FK to Entities.ID
• ChildID: FK to Entities.ID

Every entities and warnings are also cached and can be accessible directly by their ID.

As for searching, entities can be indexed in a full-text-search database, in which they are categorized by their entity types.