server/io.spine.server/BoundedContext

BoundedContext

public abstract class BoundedContext implements Closeable

A logical and structural boundary of a model.

Logically, a Bounded Context represents a sub-system built to be described with the same Ubiquitous Language. Any term within a single bounded context has a single meaning and may or may not map to another term in the language of another Bounded Context.

The Ubiquitous Language of a Bounded Context is represented by such concepts as the entity state, event, and command types, entity types, and others. An entity and its adjacent types belong to the Bounded Context which the entity Repository is registered in.

Structurally, a Bounded Context brings together all the infrastructure required for the components of a model to cooperate.

An instance of BoundedContext acts as a major point of configuration for all the model elements which belong to it.

See also

<a href="https://martinfowler.com/bliki/BoundedContext.html">

Martin Fowler on Bounded Contexts

Inheritors

Constructors

protected void BoundedContext(BoundedContextBuilder builder)

Creates new instance.

Types

public final class InternalAccess

Provides access to features of BoundedContext used internally by the framework.

Functions

public void close()

Closes the BoundedContext performing all necessary clean-ups.

public CommandBus commandBus()

Obtains instance of CommandBus of this BoundedContext.

public EventBus eventBus()

Obtains instance of EventBus of this BoundedContext.

hasEntitiesOfType

public boolean hasEntitiesOfType(Class<? extends Entity<? extends Object, ? extends Object>> entityClass)

Verifies if this Bounded Context contains entities of the passed class.

hasEntitiesWithState

public boolean hasEntitiesWithState(Class<? extends EntityState> stateClass)

Verifies if this Bounded Context has entities with the state of the passed class.

public ImportBus importBus()

Obtains instance of ImportBus of this BoundedContext.

protected final void init()

Performs post-creation initialization of the instance.

public final BoundedContext.InternalAccess internalAccess()

Provides access to features of the context used internally by the framework.

public boolean isMultitenant()

Returns true if the Bounded Context is designed to serve more than one tenant of the application, false otherwise.

public boolean isOpen()

Tells if the object is still open.

public static BoundedContextBuilder multitenant(String name)

Creates a new builder for a multitenant BoundedContext.

public BoundedContextName name()

Obtains an ID of the Bounded Context.

protected final void register(Repository<? extends Object, ? extends Object> repository)

Adds the passed repository to the context.

registerCommandDispatcher

protected void registerCommandDispatcher(CommandDispatcher dispatcher)

Registers the passed command dispatcher with the CommandBus.

registerEventDispatcher

protected void registerEventDispatcher(EventDispatcher dispatcher)

Registering the passed event dispatcher with the buses of this context.

public static BoundedContextBuilder singleTenant(String name)

Creates a new builder for a single tenant BoundedContext.

public ContextSpec spec()

Obtains specification of this context.

public Stand stand()

Obtains instance of Stand of this BoundedContext.

public Set<TypeName> stateTypes()

Obtains the set of all entity type names.

public Set<TypeName> stateTypes(Visibility visibility)

Obtains a set of entity type names by their visibility.

public abstract SystemClient systemClient()

Obtains instance of SystemClient of this BoundedContext.

public String toString()

Returns the name of this Bounded Context.

Inherited functions

public void checkOpen()

Ensures that the object is open.