content: /*
   * Copyright 2016 Adam Bien.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.airhacks.afterburner.injection;
  
  /*
   * #%L
   * afterburner.fx
   * %%
   * Copyright (C) 2013 - 2016 Adam Bien
   * %%
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   * 
   *      http://www.apache.org/licenses/LICENSE-2.0
   * 
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   * #L%
   */
  import java.util.ServiceLoader;
  import java.util.function.Function;
  
  /**
   * The implementation of this interface is fully optional and only needed in
   * case you would like to replaced the default Dependency Injection mechanism.
   * <p>
   * Afterburner will discover the implementations of this interface using the
   * Java extension mechanism.
   * </p>
   * <p>
   * You will have to register the an implementation by placing a text file:
   * <code>META-INF/services/com.airhacks.afterburner.injection.PresenterFactory</code>
   * containing the fully qualified name of the implementation.
   * </p>
   *
   * @author airhacks.com
   */
  @FunctionalInterface
  public interface PresenterFactory {
  
      /**
       * This method method replaces the standard afterburner dependency
       * injection.
       *
       * @param <T> the type of the presenter
       * @param clazz presenter class containing the default constructor.
       * @param injectionContext a cache of already instantiated and initialized
       * instances.
       * @return a fully initialized presenter with injected dependencies.
       */
      <T> T instantiatePresenter(Class<T> clazz, Function<String, Object> injectionContext);
  
      /**
       *
       * @return all discovered implementations of PresenterFactory using the
       * {@link java.util.ServiceLoader} mechanism
       */
      static Iterable<PresenterFactory> discover() {
          return ServiceLoader.load(PresenterFactory.class);
      }
  
  }
  