Class AbstractProxier<PS extends ProxySpecification>

java.lang.Object

org.microbean.proxy.AbstractProxier<PS>

Type Parameters:

PS - the ProxySpecification type

Direct Known Subclasses:

AbstractReflectiveProxier, AbstractToolkitProxier

public abstract sealed class AbstractProxier<PS extends ProxySpecification>
extends Object
permits AbstractReflectiveProxier<PS>, AbstractToolkitProxier<PS,T>

An abstract base class for subclassses that create proxies.

Author:

Laird Nelson

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractProxier(Domain domain)	Creates a new AbstractProxier implementation.

Method Summary

Modifier and Type	Method	Description
protected ClassLoader	classLoader()	Returns the ClassLoader for loading classes.
protected final Domain	domain()	Returns the Domain supplied at construction time.
abstract <R> Proxy<R>	proxy(PS ps, Supplier<? extends R> instanceSupplier)	Returns a Proxy appropriate for the supplied proxy specification and Supplier of contextual instances.

Methods inherited from class java.lang.Object

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

Constructor Details

AbstractProxier

protected AbstractProxier(Domain domain)

Creates a new AbstractProxier implementation.

Parameters:

domain - a Domain; must not be null

Throws:

NullPointerException - if domain is null

Method Details

classLoader

protected ClassLoader classLoader()

Returns the ClassLoader for loading classes.

The default implementation of this method returns the return value of an invocation of the Thread.getContextClassLoader() method.

Overrides of this method must not return null or undefined behavior may result.

Returns:

a non-null ClassLoader

domain

protected final Domain domain()

Returns the Domain supplied at construction time.

Returns:

a non-null Domain

proxy

public abstract <R> Proxy<R> proxy(PS ps,
 Supplier<? extends R> instanceSupplier)

Returns a Proxy appropriate for the supplied proxy specification and Supplier of contextual instances.

Type Parameters:

R - the contextual instance type

Parameters:

ps - an appropriate proxy specification; must not be null

instanceSupplier - a Supplier of contextual instances; must not be null; may or may not create a new contextual instance each time it is invoked; may or may not be invoked multiple times depending on the subclass implementation

Returns:

a non-null Proxy

Throws:

NullPointerException - if any argument is null