co3.schema module

Schema

Collection of related storage components, often representing the data structure of an entire database. Some databases support multiple schemas, however. In general, a Schema can wrap up an associated subset of components within a single database, so long as Manager.recreate() supports creating components in separate calls (even if the associated database doesn’t explicitly support multiple schemas).

Schema objects are used to:

• Semantically group related storage components

• Tell databases what components to create/remove together

• Provide target contexts for connected CO3 type systems within Mappers

with particular emphasis on the latter. Mappers associate exactly one CO3 type hierarchy with exactly one Schema. This is an intentional point of simplification in the CO3 operational model.

class co3.schema.Schema

Bases: Generic

__init__()

add_component(component)

get_component(name)