Class ScopedInstances

java.lang.Object

org.microbean.scopelet.ScopedInstances

All Implemented Interfaces:

Instances

public class ScopedInstances
extends Object
implements Instances

An Instances implementation that is based on scopes.

Author:

Laird Nelson

See Also:

• supplier(Bean, Creation)
• Instances

Constructor Summary

Constructors

Constructor	Description
ScopedInstances(Domain domain, Qualifiers qualifiers, Scopes scopes)	Creates a new ScopedInstances.

Method Summary

Modifier and Type	Method	Description
protected boolean	primordial(Collection<? extends Attributes> c)	Returns true if and only if the supplied Collection of Attributes is deemed to designate something as primordial.
boolean	proxiable(Id id)	Returns true if and only if the supplied Id is proxiable.
static final Selectable<AttributedType, Bean<?>>	selectableOf(Domain domain, Selectable<AttributedType, Bean<?>> selectable)	Returns a Selectable<AttributedType, Bean<?>> that properly considers the fact that a Scopelet may be active or inactive at any point for any reason.
final <I> Supplier<? extends I>	supplier(Bean<I> bean, Creation<I> request)

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ScopedInstances

public ScopedInstances(Domain domain,
 Qualifiers qualifiers,
 Scopes scopes)

Creates a new ScopedInstances.

Parameters:

domain - a Domain; must not be null

qualifiers - a Qualifiers; must not be null

scopes - a Scopes; must not be null

Throws:

NullPointerException - if any argument is null

Method Details

proxiable

public boolean proxiable(Id id)

Returns true if and only if the supplied Id is proxiable.

Specified by:

proxiable in interface Instances

Parameters:

id - an Id; must not be null

Returns:

true if and only if the supplied Id is proxiable

Throws:

NullPointerException - if id is null

supplier

public final <I> Supplier<? extends I> supplier(Bean<I> bean,
 Creation<I> request)

Specified by:

supplier in interface Instances

primordial

protected boolean primordial(Collection<? extends Attributes> c)

Returns true if and only if the supplied Collection of Attributes is deemed to designate something as primordial.

The default implementation of this method returns true if and only if the supplied Collection contains the primordial qualifier.

Parameters:

c - a Collection; must not be null

Returns:

true if and only if the supplied Collection of Attributes is deemed to designate something as primordial

Throws:

NullPointerException - if c is null

See Also:

• Qualifiers.primordialQualifier()

selectableOf

public static final Selectable<AttributedType, Bean<?>> selectableOf(Domain domain,
 Selectable<AttributedType, Bean<?>> selectable)

Returns a Selectable<AttributedType, Bean<?>> that properly considers the fact that a Scopelet may be active or inactive at any point for any reason.

Parameters:

domain - a Domain; must not be null

selectable - a Selectable that will be used for all AttributedTypes other than Scopelet types being sought for the purpose of instantiating or acquiring contextual instances; must not be null

Returns:

a non-null Selectable

Throws:

NullPointerException - if any argument is null