lambdaconnect-sync.db-interface — io.spinney/lambdaconnect-sync 1.0.33

IDatabaseDriver clj/s protocol

Database driver protocol. Allows lambdaconnect-sync to interact with arbitrary database. Entity or relationship refers to objects taken from entities-by-name.

objects-by-uuids clj/s

(objects-by-uuids this snapshot entity uuids fetch-inverses?)

Fetches objects that match the entity and uuids. Objects that do not conform to entity will not be returned. Returns them in the same format as objects-by-ids.

referenced-objects clj/s

(referenced-objects this snapshot relationship uuids)

For a given relationship and list of uuids, returns a set of uuids (or nil) that represent objects referenced by the ones in uuids collection through relationship.

misclassified-objects clj/s

(misclassified-objects this snapshot entity uuids)

Returns objects (in the form given by objects-by-ids with inverse:false) that do not belong to entity but are found in uuids map.

sync-revision clj/s

(sync-revision this snapshot)

Returns sync revision of a snapshot.

related-objects clj/s

(related-objects this snapshot relationship uuids)

For a given relationship and list of uuids, returns a set of uuids (or nil) that represent objects refering to the ones in uuids collection through relationship.

id-for-uuid clj/s

(id-for-uuid this snapshot entity uuid)

Returns db id for uuid/entity pair, or nil if there is any mismatch.

uuids-for-ids clj/s

(uuids-for-ids this snapshot ids)

Returns uuids for given internal ids.

as-of clj/s

(as-of this snapshot sync-revision)

Returns database as if it was viewed through given sync revision.

check-uuids-for-entity clj/s

(check-uuids-for-entity this snapshot entity-name uuids)

Returns a subset of uuids (uuids is a sequence, retval is a set) that belong to given entity.

objects-by-ids clj/s

(objects-by-ids this snapshot entity ids fetch-inverses?)

Fetches objects that match the entity and ids (as any sequence). Objects that do not conform to entity will not be returned. The format is:

{:app/uuid #"some-uuid" :app/createdAt #some-date :app/updatedAt #some-date :NOUser/someAttribute #some-value :NOUser/someRelationshipToMany [{:app/uuid #uuid :db/id #id} ...] :NOUser/someRelationshipToOne {:app/uuid #uuid :db/id #id} :NOLocation/_thisIsSomeInverseRelationshipToMany [{:app/uuid #uuid :db/id #id} ...] ;; if fetch-inverse? is true :NOLocation/_thisIsSomeInverseRelationshipToOne [{:app/uuid #uuid :db/id #id}] ;; if fetch-inverse? is true. Note that inverses are a collection even in to-one case. }

Please note that it is not guaranteed what collection holds relationships. It might be a vector, list, lazy coll or even a set (since relationships are never ordered).

speculate clj/s

(speculate this snapshot transaction)

Returns a new snapshot with transaction applied to it (temporarily)

changed-ids clj/s

(changed-ids this snapshot entity sync-revision scoped-ids)

Returns internal ids of entities that have been modified since sync-revision version of db. If scoped-ids is present, only a subset of scoped-ids is returned.