/**
 * Factory for {@link ModelCache} objects.
 *
 * @deprecated since 4.0.0, use {@code maven-api-impl} jar instead
 */
@Deprecated(since = "4.0.0")
public interface ModelCacheFactory {

    ModelCache createCache(RepositorySystemSession session);

     * The created cache should be configured according to the current Maven session
     * and environment settings.
     *
     * @return A new RequestCache instance
     */
    RequestCache createCache();

 */
@Singleton
@Named
@Deprecated(since = "4.0.0")
public class DefaultModelCacheFactory implements ModelCacheFactory {
    @Override
    public ModelCache createCache(RepositorySystemSession session) {
        return DefaultModelCache.newInstance(session);
    }

 *   <li>REQUEST_SCOPED - Data retained only for the current build request</li>
 *   <li>DISABLED - No caching performed</li>
 * </ul>
 * <p>
 * Example usage:
 * <pre>
 * RequestCache cache = cacheFactory.createCache();
 * Result result = cache.request(myRequest, req -> {
 *     // Expensive operation to compute result
 *     return computedResult;
 * });
 * </pre>
 * <p>

                        toProperties(session.getUserProperties(), session.getSystemProperties()));
                modelRequest.setUserProperties(new Properties());
                modelRequest.setModelCache(modelCacheFactory.createCache(session));
                modelRequest.setModelResolver(new DefaultModelResolver(
                        session,
                        trace.newChild(modelRequest),
                        request.getRequestContext(),