Module org.microbean.bean

Package org.microbean.bean

Interface Aggregate

All Known Subinterfaces:

Factory<I>, Initializer<I>, Producer<I>

All Known Implementing Classes:

Bean, Constant, InterceptingProducer

public interface Aggregate

An object with dependencies.

By default, Aggregates have no dependencies.

Author:

Laird Nelson

See Also:

• dependencies()

Field Summary

Fields

Modifier and Type	Field	Description
static final SequencedSet<Assignment<?>>	EMPTY_ASSIGNMENTS	An immutable, empty SequencedSet of Assignments.
static final SequencedSet<AttributedElement>	EMPTY_DEPENDENCIES	An immutable, empty SequencedSet of AttributedElements.

Method Summary

Modifier and Type	Method	Description
default SequencedSet<? extends Assignment<?>>	assign(Request<?> r)	Assigns a contextual reference to each of this Aggregate's AttributedElement instances and returns the resulting List of Assignments.
default SequencedSet<AttributedElement>	dependencies()	Returns an unmodifiable SequencedSet of AttributedElement instances.

Field Details

EMPTY_ASSIGNMENTS

static final SequencedSet<Assignment<?>> EMPTY_ASSIGNMENTS

An immutable, empty SequencedSet of Assignments.

EMPTY_DEPENDENCIES

static final SequencedSet<AttributedElement> EMPTY_DEPENDENCIES

An immutable, empty SequencedSet of AttributedElements.

Method Details

dependencies

default SequencedSet<AttributedElement> dependencies()

Returns an unmodifiable SequencedSet of AttributedElement instances.

Returns:

an unmodifiable SequencedSet of AttributedElement instances; never null

See Also:

• AttributedElement

assign

default SequencedSet<? extends Assignment<?>> assign(Request<?> r)

Assigns a contextual reference to each of this Aggregate's AttributedElement instances and returns the resulting List of Assignments.

Parameters:

r - a Request; must not be null

Returns:

a List of Assignment instances; never null

Throws:

NullPointerException - if r is null