SchemaManager

classin packageklyn.data

public final class SchemaManager

SchemaManager

Thread-safe facade for physical schema creation, inspection and validation.

A SchemaManager belongs to an EntityManagerFactory and uses the immutable entity-model snapshot captured when that factory is created. It never shares an EntityManager identity map or transaction.

try factory = EntityManagerFactory(configuration, entities=[User]):
    schema = factory.schema
    if not schema.exists(User.type):
        schema.create(User.type)
    schema.validate()

Properties

Modifier and Type	Member	Description
public readonly property	mappedTypes `mappedTypes as IList<Type>`	Complete mapped entity types captured by the owning factory.

Methods

Modifier and Type	Member	Description
public	apply `apply(plan as SchemaPlan) as Void`	Applies a plan produced for the current immutable factory model.
public	create `create() as Void`	Creates every missing structure required by the factory entity model.
public	create `create(entityType as Type) as Void`	Creates the missing structure for one mapped entity.
public	diff `diff() as SchemaPlan`	Computes an immutable reconciliation plan for every mapped entity.
public	diff `diff(entityType as Type) as SchemaPlan`	Computes an immutable reconciliation plan for one mapped entity.
public	drop `drop() as Void`	Drops all physical structures represented by this factory, in provider dependency order.
public	drop `drop(entityType as Type) as Void`	Drops the physical structure represented by one mapped entity.
public	exists `exists() as Boolean`	Tests whether every mapped entity has a physical provider structure.
public	exists `exists(entityType as Type) as Boolean`	Tests whether one mapped entity has a physical provider structure.
public	validate `validate() as Void`	Validates all mapped physical structures without changing them.
public	validate `validate(entityType as Type) as Void`	Validates one mapped physical structure without changing it.