What I had in mind was the following:

package org.oasisopen.sca.client;

import java.net.URI; import java.util.Properties;

public abstract class SCAClientFactory {

protected static SCAClientFactoryFinder defaultFactoryFinder; private URI domainURI;

private SCAClientFactory() { }

protected SCAClientFactory(URI domainURI) { this.domainURI = domainURI; }

protected URI getDomainURI() { return domainURI; }

public static SCAClient newInstance() { return newInstance(null, null, domainURI); }

public static SCAClient newInstance(Properties properties) { return newInstance(properties, null, domainURI); }

public static SCAClient newInstance(ClassLoader classLoader) { return newInstance(null, classLoader, domainURI); }

public static SCAClient newInstance(Properties properties, ClassLoader classLoader URI domainURI) { final SCAClientFactoryFinder finder = defaultFactoryFinder != null ? defaultFactoryFinder : new SCAClientFactoryFinderImpl(); final SCAClientFactory factory = finder.find(properties, classLoader, domainURI); return factory.createSCAClient(); }

protected abstract SCAClient createSCAClient(); }

The protected method getDomainURI() allows the vendor-specific subclass code to access the URI that was passed on the one-arg constructor. IMO this should not be a public method because it is part of the SPI, not the API.

Simon

Mike Edwards wrote: